terraform/command/init.go

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38 KiB
Go
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package command
import (
"context"
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"fmt"
"log"
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"strings"
"github.com/hashicorp/hcl/v2"
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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"github.com/hashicorp/terraform-config-inspect/tfconfig"
svchost "github.com/hashicorp/terraform-svchost"
"github.com/posener/complete"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/backend"
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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backendInit "github.com/hashicorp/terraform/backend/init"
"github.com/hashicorp/terraform/configs"
"github.com/hashicorp/terraform/configs/configschema"
"github.com/hashicorp/terraform/internal/getproviders"
"github.com/hashicorp/terraform/internal/providercache"
"github.com/hashicorp/terraform/states"
"github.com/hashicorp/terraform/terraform"
"github.com/hashicorp/terraform/tfdiags"
tfversion "github.com/hashicorp/terraform/version"
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)
// InitCommand is a Command implementation that takes a Terraform
// module and clones it to the working directory.
type InitCommand struct {
Meta
}
func (c *InitCommand) Run(args []string) int {
var flagFromModule string
var flagBackend, flagGet, flagUpgrade bool
var flagPluginPath FlagStringSlice
flagConfigExtra := newRawFlags("-backend-config")
args = c.Meta.process(args)
cmdFlags := c.Meta.extendedFlagSet("init")
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cmdFlags.BoolVar(&flagBackend, "backend", true, "")
cmdFlags.Var(flagConfigExtra, "backend-config", "")
cmdFlags.StringVar(&flagFromModule, "from-module", "", "copy the source of the given module into the directory before init")
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cmdFlags.BoolVar(&flagGet, "get", true, "")
cmdFlags.BoolVar(&c.forceInitCopy, "force-copy", false, "suppress prompts about copying state data")
cmdFlags.BoolVar(&c.reconfigure, "reconfigure", false, "reconfigure")
cmdFlags.BoolVar(&flagUpgrade, "upgrade", false, "")
cmdFlags.Var(&flagPluginPath, "plugin-dir", "plugin directory")
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cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
if err := cmdFlags.Parse(args); err != nil {
return 1
}
var diags tfdiags.Diagnostics
if len(flagPluginPath) > 0 {
c.pluginPath = flagPluginPath
}
// Validate the arg count and get the working directory
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args = cmdFlags.Args()
path, err := ModulePath(args)
if err != nil {
c.Ui.Error(err.Error())
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return 1
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}
if err := c.storePluginPath(c.pluginPath); err != nil {
c.Ui.Error(fmt.Sprintf("Error saving -plugin-path values: %s", err))
return 1
}
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// This will track whether we outputted anything so that we know whether
// to output a newline before the success message
var header bool
if flagFromModule != "" {
src := flagFromModule
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empty, err := configs.IsEmptyDir(path)
if err != nil {
c.Ui.Error(fmt.Sprintf("Error validating destination directory: %s", err))
return 1
}
if !empty {
c.Ui.Error(strings.TrimSpace(errInitCopyNotEmpty))
return 1
}
c.Ui.Output(c.Colorize().Color(fmt.Sprintf(
"[reset][bold]Copying configuration[reset] from %q...", src,
)))
header = true
hooks := uiModuleInstallHooks{
Ui: c.Ui,
ShowLocalPaths: false, // since they are in a weird location for init
}
initDiags := c.initDirFromModule(path, src, hooks)
diags = diags.Append(initDiags)
if initDiags.HasErrors() {
c.showDiagnostics(diags)
return 1
}
c.Ui.Output("")
}
// If our directory is empty, then we're done. We can't get or set up
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// the backend with an empty directory.
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empty, err := configs.IsEmptyDir(path)
if err != nil {
diags = diags.Append(fmt.Errorf("Error checking configuration: %s", err))
c.showDiagnostics(diags)
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return 1
}
if empty {
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c.Ui.Output(c.Colorize().Color(strings.TrimSpace(outputInitEmpty)))
return 0
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}
// For Terraform v0.12 we introduced a special loading mode where we would
// use the 0.11-syntax-compatible "earlyconfig" package as a heuristic to
// identify situations where it was likely that the user was trying to use
// 0.11-only syntax that the upgrade tool might help with.
//
// However, as the language has moved on that is no longer a suitable
// heuristic in Terraform 0.13 and later: other new additions to the
// language can cause the main loader to disagree with earlyconfig, which
// would lead us to give poor advice about how to respond.
//
// For that reason, we no longer use a different error message in that
// situation, but for now we still use both codepaths because some of our
// initialization functionality remains built around "earlyconfig" and
// so we need to still load the module via that mechanism anyway until we
// can do some more invasive refactoring here.
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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rootMod, confDiags := c.loadSingleModule(path)
rootModEarly, earlyConfDiags := c.loadSingleModuleEarly(path)
if confDiags.HasErrors() {
c.Ui.Error(c.Colorize().Color(strings.TrimSpace(errInitConfigError)))
// TODO: It would be nice to check the version constraints in
// rootModEarly.RequiredCore and print out a hint if the module is
// declaring that it's not compatible with this version of Terraform,
// though we're deferring that for now because we're intending to
// refactor our use of "earlyconfig" here anyway and so whatever we
// might do here right now would likely be invalidated by that.
c.showDiagnostics(confDiags)
return 1
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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}
// If _only_ the early loader encountered errors then that's unusual
// (it should generally be a superset of the normal loader) but we'll
// return those errors anyway since otherwise we'll probably get
// some weird behavior downstream. Errors from the early loader are
// generally not as high-quality since it has less context to work with.
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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if earlyConfDiags.HasErrors() {
c.Ui.Error(c.Colorize().Color(strings.TrimSpace(errInitConfigError)))
// Errors from the early loader are generally not as high-quality since
// it has less context to work with.
diags = diags.Append(confDiags)
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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c.showDiagnostics(diags)
return 1
}
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command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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if flagGet {
modsOutput, modsDiags := c.getModules(path, rootModEarly, flagUpgrade)
diags = diags.Append(modsDiags)
if modsDiags.HasErrors() {
c.showDiagnostics(diags)
return 1
}
if modsOutput {
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header = true
}
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}
// With all of the modules (hopefully) installed, we can now try to load the
// whole configuration tree.
config, confDiags := c.loadConfig(path)
diags = diags.Append(confDiags)
if confDiags.HasErrors() {
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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c.Ui.Error(strings.TrimSpace(errInitConfigError))
c.showDiagnostics(diags)
return 1
}
// Before we go further, we'll check to make sure none of the modules in the
// configuration declare that they don't support this Terraform version, so
// we can produce a version-related error message rather than
// potentially-confusing downstream errors.
versionDiags := terraform.CheckCoreVersionRequirements(config)
diags = diags.Append(versionDiags)
if versionDiags.HasErrors() {
c.showDiagnostics(diags)
return 1
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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}
var back backend.Backend
if flagBackend {
be, backendOutput, backendDiags := c.initBackend(rootMod, flagConfigExtra)
diags = diags.Append(backendDiags)
if backendDiags.HasErrors() {
c.showDiagnostics(diags)
return 1
}
if backendOutput {
header = true
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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}
back = be
} else {
// load the previously-stored backend config
be, backendDiags := c.Meta.backendFromState()
diags = diags.Append(backendDiags)
if backendDiags.HasErrors() {
c.showDiagnostics(diags)
return 1
}
back = be
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
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}
if back == nil {
// If we didn't initialize a backend then we'll try to at least
// instantiate one. This might fail if it wasn't already initialized
// by a previous run, so we must still expect that "back" may be nil
// in code that follows.
var backDiags tfdiags.Diagnostics
back, backDiags = c.Backend(nil)
if backDiags.HasErrors() {
// This is fine. We'll proceed with no backend, then.
back = nil
}
}
var state *states.State
// If we have a functional backend (either just initialized or initialized
// on a previous run) we'll use the current state as a potential source
// of provider dependencies.
if back != nil {
backend: Validate remote backend Terraform version When using the enhanced remote backend, a subset of all Terraform operations are supported. Of these, only plan and apply can be executed on the remote infrastructure (e.g. Terraform Cloud). Other operations run locally and use the remote backend for state storage. This causes problems when the local version of Terraform does not match the configured version from the remote workspace. If the two versions are incompatible, an `import` or `state mv` operation can cause the remote workspace to be unusable until a manual fix is applied. To prevent this from happening accidentally, this commit introduces a check that the local Terraform version and the configured remote workspace Terraform version are compatible. This check is skipped for commands which do not write state, and can also be disabled by the use of a new command-line flag, `-ignore-remote-version`. Terraform version compatibility is defined as: - For all releases before 0.14.0, local must exactly equal remote, as two different versions cannot share state; - 0.14.0 to 1.0.x are compatible, as we will not change the state version number until at least Terraform 1.1.0; - Versions after 1.1.0 must have the same major and minor versions, as we will not change the state version number in a patch release. If the two versions are incompatible, a diagnostic is displayed, advising that the error can be suppressed with `-ignore-remote-version`. When this flag is used, the diagnostic is still displayed, but as a warning instead of an error. Commands which will not write state can assert this fact by calling the helper `meta.ignoreRemoteBackendVersionConflict`, which will disable the checks. Those which can write state should instead call the helper `meta.remoteBackendVersionCheck`, which will return diagnostics for display. In addition to these explicit paths for managing the version check, we have an implicit check in the remote backend's state manager initialization method. Both of the above helpers will disable this check. This fallback is in place to ensure that future code paths which access state cannot accidentally skip the remote version check.
2020-11-13 22:43:56 +01:00
c.ignoreRemoteBackendVersionConflict(back)
workspace, err := c.Workspace()
if err != nil {
c.Ui.Error(fmt.Sprintf("Error selecting workspace: %s", err))
return 1
}
sMgr, err := back.StateMgr(workspace)
if err != nil {
c.Ui.Error(fmt.Sprintf("Error loading state: %s", err))
return 1
}
if err := sMgr.RefreshState(); err != nil {
c.Ui.Error(fmt.Sprintf("Error refreshing state: %s", err))
return 1
}
state = sMgr.State()
}
// Now that we have loaded all modules, check the module tree for missing providers.
providersOutput, providersAbort, providerDiags := c.getProviders(config, state, flagUpgrade, flagPluginPath)
diags = diags.Append(providerDiags)
if providersAbort || providerDiags.HasErrors() {
c.showDiagnostics(diags)
return 1
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
if providersOutput {
header = true
}
2017-01-19 05:50:45 +01:00
// If we outputted information, then we need to output a newline
// so that our success message is nicely spaced out from prior text.
if header {
c.Ui.Output("")
}
2017-01-19 05:50:45 +01:00
// If we accumulated any warnings along the way that weren't accompanied
// by errors then we'll output them here so that the success message is
// still the final thing shown.
c.showDiagnostics(diags)
2017-01-19 05:50:45 +01:00
c.Ui.Output(c.Colorize().Color(strings.TrimSpace(outputInitSuccess)))
cli: allow disabling "next steps" message in terraform plan In #15884 we adjusted the plan output to give an explicit command to run to apply a plan, whereas before this command was just alluded to in the prose. Since releasing that, we've got good feedback that it's confusing to include such instructions when Terraform is running in a workflow automation tool, because such tools usually abstract away exactly what commands are run and require users to take different actions to proceed through the workflow. To accommodate such environments while retaining helpful messages for normal CLI usage, here we introduce a new environment variable TF_IN_AUTOMATION which, when set to a non-empty value, is a hint to Terraform that it isn't being run in an interactive command shell and it should thus tone down the "next steps" messaging. The documentation for this setting is included as part of the "...in automation" guide since it's not generally useful in other cases. We also intentionally disclaim comprehensive support for this since we want to avoid creating an extreme number of "if running in automation..." codepaths that would increase the testing matrix and hurt maintainability. The focus is specifically on the output of the three commands we give in the automation guide, which at present means the following two situations: * "terraform init" does not include the final paragraphs that suggest running "terraform plan" and tell you in what situations you might need to re-run "terraform init". * "terraform plan" does not include the final paragraphs that either warn about not specifying "-out=..." or instruct to run "terraform apply" with the generated plan file.
2017-09-09 02:14:37 +02:00
if !c.RunningInAutomation {
// If we're not running in an automation wrapper, give the user
// some more detailed next steps that are appropriate for interactive
// shell usage.
c.Ui.Output(c.Colorize().Color(strings.TrimSpace(outputInitSuccessCLI)))
}
2014-09-27 01:03:39 +02:00
return 0
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
func (c *InitCommand) getModules(path string, earlyRoot *tfconfig.Module, upgrade bool) (output bool, diags tfdiags.Diagnostics) {
if len(earlyRoot.ModuleCalls) == 0 {
// Nothing to do
return false, nil
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
if upgrade {
2020-12-01 18:34:50 +01:00
c.Ui.Output(c.Colorize().Color("[reset][bold]Upgrading modules..."))
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
} else {
2020-12-01 18:34:50 +01:00
c.Ui.Output(c.Colorize().Color("[reset][bold]Initializing modules..."))
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
}
hooks := uiModuleInstallHooks{
Ui: c.Ui,
ShowLocalPaths: true,
}
instDiags := c.installModules(path, upgrade, hooks)
diags = diags.Append(instDiags)
// Since module installer has modified the module manifest on disk, we need
// to refresh the cache of it in the loader.
if c.configLoader != nil {
if err := c.configLoader.RefreshModules(); err != nil {
// Should never happen
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Failed to read module manifest",
fmt.Sprintf("After installing modules, Terraform could not re-read the manifest of installed modules. This is a bug in Terraform. %s.", err),
))
}
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
return true, diags
}
func (c *InitCommand) initBackend(root *configs.Module, extraConfig rawFlags) (be backend.Backend, output bool, diags tfdiags.Diagnostics) {
2020-12-01 18:34:50 +01:00
c.Ui.Output(c.Colorize().Color("\n[reset][bold]Initializing the backend..."))
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
var backendConfig *configs.Backend
var backendConfigOverride hcl.Body
if root.Backend != nil {
backendType := root.Backend.Type
bf := backendInit.Backend(backendType)
if bf == nil {
diags = diags.Append(&hcl.Diagnostic{
Severity: hcl.DiagError,
Summary: "Unsupported backend type",
Detail: fmt.Sprintf("There is no backend type named %q.", backendType),
Subject: &root.Backend.TypeRange,
})
return nil, true, diags
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
b := bf()
backendSchema := b.ConfigSchema()
backendConfig = root.Backend
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
var overrideDiags tfdiags.Diagnostics
backendConfigOverride, overrideDiags = c.backendConfigOverrideBody(extraConfig, backendSchema)
diags = diags.Append(overrideDiags)
if overrideDiags.HasErrors() {
return nil, true, diags
}
} else {
// If the user supplied a -backend-config on the CLI but no backend
// block was found in the configuration, it's likely - but not
// necessarily - a mistake. Return a warning.
if !extraConfig.Empty() {
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Warning,
"Missing backend configuration",
`-backend-config was used without a "backend" block in the configuration.
If you intended to override the default local backend configuration,
no action is required, but you may add an explicit backend block to your
configuration to clear this warning:
terraform {
backend "local" {}
}
However, if you intended to override a defined backend, please verify that
the backend configuration is present and valid.
`,
))
}
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
opts := &BackendOpts{
Config: backendConfig,
ConfigOverride: backendConfigOverride,
Init: true,
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
back, backDiags := c.Backend(opts)
diags = diags.Append(backDiags)
return back, true, diags
}
// Load the complete module tree, and fetch any missing providers.
// This method outputs its own Ui.
func (c *InitCommand) getProviders(config *configs.Config, state *states.State, upgrade bool, pluginDirs []string) (output, abort bool, diags tfdiags.Diagnostics) {
// Dev overrides cause the result of "terraform init" to be irrelevant for
// any overridden providers, so we'll warn about it to avoid later
// confusion when Terraform ends up using a different provider than the
// lock file called for.
diags = diags.Append(c.providerDevOverrideInitWarnings())
// First we'll collect all the provider dependencies we can see in the
// configuration and the state.
reqs, hclDiags := config.ProviderRequirements()
diags = diags.Append(hclDiags)
if hclDiags.HasErrors() {
return false, true, diags
}
if state != nil {
stateReqs := state.ProviderRequirements()
reqs = reqs.Merge(stateReqs)
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
for providerAddr := range reqs {
if providerAddr.IsLegacy() {
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Invalid legacy provider address",
fmt.Sprintf(
"This configuration or its associated state refers to the unqualified provider %q.\n\nYou must complete the Terraform 0.13 upgrade process before upgrading to later versions.",
providerAddr.Type,
),
))
}
}
previousLocks, moreDiags := c.lockedDependencies()
diags = diags.Append(moreDiags)
if diags.HasErrors() {
return false, true, diags
}
var inst *providercache.Installer
if len(pluginDirs) == 0 {
// By default we use a source that looks for providers in all of the
// standard locations, possibly customized by the user in CLI config.
inst = c.providerInstaller()
} else {
// If the user passes at least one -plugin-dir then that circumvents
// the usual sources and forces Terraform to consult only the given
// directories. Anything not available in one of those directories
// is not available for installation.
source := c.providerCustomLocalDirectorySource(pluginDirs)
inst = c.providerInstallerCustomSource(source)
// The default (or configured) search paths are logged earlier, in provider_source.go
// Log that those are being overridden by the `-plugin-dir` command line options
log.Println("[DEBUG] init: overriding provider plugin search paths")
log.Printf("[DEBUG] will search for provider plugins in %s", pluginDirs)
}
// Installation can be aborted by interruption signals
ctx, done := c.InterruptibleContext()
defer done()
// Because we're currently just streaming a series of events sequentially
// into the terminal, we're showing only a subset of the events to keep
// things relatively concise. Later it'd be nice to have a progress UI
// where statuses update in-place, but we can't do that as long as we
// are shimming our vt100 output to the legacy console API on Windows.
evts := &providercache.InstallerEvents{
PendingProviders: func(reqs map[addrs.Provider]getproviders.VersionConstraints) {
c.Ui.Output(c.Colorize().Color(
"\n[reset][bold]Initializing provider plugins...",
))
},
ProviderAlreadyInstalled: func(provider addrs.Provider, selectedVersion getproviders.Version) {
c.Ui.Info(fmt.Sprintf("- Using previously-installed %s v%s", provider.ForDisplay(), selectedVersion))
},
BuiltInProviderAvailable: func(provider addrs.Provider) {
c.Ui.Info(fmt.Sprintf("- %s is built in to Terraform", provider.ForDisplay()))
},
BuiltInProviderFailure: func(provider addrs.Provider, err error) {
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Invalid dependency on built-in provider",
fmt.Sprintf("Cannot use %s: %s.", provider.ForDisplay(), err),
))
},
QueryPackagesBegin: func(provider addrs.Provider, versionConstraints getproviders.VersionConstraints, locked bool) {
if locked {
c.Ui.Info(fmt.Sprintf("- Reusing previous version of %s from the dependency lock file", provider.ForDisplay()))
} else {
if len(versionConstraints) > 0 {
c.Ui.Info(fmt.Sprintf("- Finding %s versions matching %q...", provider.ForDisplay(), getproviders.VersionConstraintsString(versionConstraints)))
} else {
c.Ui.Info(fmt.Sprintf("- Finding latest version of %s...", provider.ForDisplay()))
}
}
},
LinkFromCacheBegin: func(provider addrs.Provider, version getproviders.Version, cacheRoot string) {
c.Ui.Info(fmt.Sprintf("- Using %s v%s from the shared cache directory", provider.ForDisplay(), version))
},
FetchPackageBegin: func(provider addrs.Provider, version getproviders.Version, location getproviders.PackageLocation) {
c.Ui.Info(fmt.Sprintf("- Installing %s v%s...", provider.ForDisplay(), version))
},
QueryPackagesFailure: func(provider addrs.Provider, err error) {
switch errorTy := err.(type) {
case getproviders.ErrProviderNotFound:
sources := errorTy.Sources
displaySources := make([]string, len(sources))
for i, source := range sources {
displaySources[i] = fmt.Sprintf(" - %s", source)
}
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Failed to query available provider packages",
fmt.Sprintf("Could not retrieve the list of available versions for provider %s: %s\n\n%s",
provider.ForDisplay(), err, strings.Join(displaySources, "\n"),
),
))
case getproviders.ErrRegistryProviderNotKnown:
// We might be able to suggest an alternative provider to use
// instead of this one.
var suggestion string
alternative := getproviders.MissingProviderSuggestion(ctx, provider, inst.ProviderSource())
if alternative != provider {
suggestion = fmt.Sprintf(
"\n\nDid you intend to use %s? If so, you must specify that source address in each module which requires that provider. To see which modules are currently depending on %s, run the following command:\n terraform providers",
alternative.ForDisplay(), provider.ForDisplay(),
)
}
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Failed to query available provider packages",
fmt.Sprintf("Could not retrieve the list of available versions for provider %s: %s%s",
provider.ForDisplay(), err, suggestion,
),
))
case getproviders.ErrHostNoProviders:
switch {
case errorTy.Hostname == svchost.Hostname("github.com") && !errorTy.HasOtherVersion:
// If a user copies the URL of a GitHub repository into
// the source argument and removes the schema to make it
// provider-address-shaped then that's one way we can end up
// here. We'll use a specialized error message in anticipation
// of that mistake. We only do this if github.com isn't a
// provider registry, to allow for the (admittedly currently
// rather unlikely) possibility that github.com starts being
// a real Terraform provider registry in the future.
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Invalid provider registry host",
fmt.Sprintf("The given source address %q specifies a GitHub repository rather than a Terraform provider. Refer to the documentation of the provider to find the correct source address to use.",
provider.String(),
),
))
case errorTy.HasOtherVersion:
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Invalid provider registry host",
fmt.Sprintf("The host %q given in in provider source address %q does not offer a Terraform provider registry that is compatible with this Terraform version, but it may be compatible with a different Terraform version.",
errorTy.Hostname, provider.String(),
),
))
default:
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Invalid provider registry host",
fmt.Sprintf("The host %q given in in provider source address %q does not offer a Terraform provider registry.",
errorTy.Hostname, provider.String(),
),
))
}
case getproviders.ErrRequestCanceled:
// We don't attribute cancellation to any particular operation,
// but rather just emit a single general message about it at
// the end, by checking ctx.Err().
default:
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Failed to query available provider packages",
fmt.Sprintf("Could not retrieve the list of available versions for provider %s: %s",
provider.ForDisplay(), err,
),
))
}
},
QueryPackagesWarning: func(provider addrs.Provider, warnings []string) {
displayWarnings := make([]string, len(warnings))
for i, warning := range warnings {
displayWarnings[i] = fmt.Sprintf("- %s", warning)
}
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Warning,
"Additional provider information from registry",
fmt.Sprintf("The remote registry returned warnings for %s:\n%s",
provider.String(),
strings.Join(displayWarnings, "\n"),
),
))
},
LinkFromCacheFailure: func(provider addrs.Provider, version getproviders.Version, err error) {
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Failed to install provider from shared cache",
fmt.Sprintf("Error while importing %s v%s from the shared cache directory: %s.", provider.ForDisplay(), version, err),
))
},
FetchPackageFailure: func(provider addrs.Provider, version getproviders.Version, err error) {
const summaryIncompatible = "Incompatible provider version"
switch err := err.(type) {
case getproviders.ErrProtocolNotSupported:
closestAvailable := err.Suggestion
switch {
case closestAvailable == getproviders.UnspecifiedVersion:
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
summaryIncompatible,
fmt.Sprintf(errProviderVersionIncompatible, provider.String()),
))
case version.GreaterThan(closestAvailable):
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
summaryIncompatible,
fmt.Sprintf(providerProtocolTooNew, provider.ForDisplay(),
version, tfversion.String(), closestAvailable, closestAvailable,
getproviders.VersionConstraintsString(reqs[provider]),
),
))
default: // version is less than closestAvailable
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
summaryIncompatible,
fmt.Sprintf(providerProtocolTooOld, provider.ForDisplay(),
version, tfversion.String(), closestAvailable, closestAvailable,
getproviders.VersionConstraintsString(reqs[provider]),
),
))
}
case getproviders.ErrPlatformNotSupported:
switch {
case err.MirrorURL != nil:
// If we're installing from a mirror then it may just be
// the mirror lacking the package, rather than it being
// unavailable from upstream.
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
summaryIncompatible,
fmt.Sprintf(
"Your chosen provider mirror at %s does not have a %s v%s package available for your current platform, %s.\n\nProvider releases are separate from Terraform CLI releases, so this provider might not support your current platform. Alternatively, the mirror itself might have only a subset of the plugin packages available in the origin registry, at %s.",
err.MirrorURL, err.Provider, err.Version, err.Platform,
err.Provider.Hostname,
),
))
default:
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
summaryIncompatible,
fmt.Sprintf(
"Provider %s v%s does not have a package available for your current platform, %s.\n\nProvider releases are separate from Terraform CLI releases, so not all providers are available for all platforms. Other versions of this provider may have different platforms supported.",
err.Provider, err.Version, err.Platform,
),
))
}
case getproviders.ErrRequestCanceled:
// We don't attribute cancellation to any particular operation,
// but rather just emit a single general message about it at
// the end, by checking ctx.Err().
default:
// We can potentially end up in here under cancellation too,
// in spite of our getproviders.ErrRequestCanceled case above,
// because not all of the outgoing requests we do under the
// "fetch package" banner are source metadata requests.
// In that case we will emit a redundant error here about
// the request being cancelled, but we'll still detect it
// as a cancellation after the installer returns and do the
// normal cancellation handling.
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Failed to install provider",
fmt.Sprintf("Error while installing %s v%s: %s", provider.ForDisplay(), version, err),
))
}
},
2020-04-08 22:22:07 +02:00
FetchPackageSuccess: func(provider addrs.Provider, version getproviders.Version, localDir string, authResult *getproviders.PackageAuthenticationResult) {
var keyID string
if authResult != nil && authResult.ThirdPartySigned() {
keyID = authResult.KeyID
2020-04-08 22:22:07 +02:00
}
if keyID != "" {
keyID = c.Colorize().Color(fmt.Sprintf(", key ID [reset][bold]%s[reset]", keyID))
2020-04-08 22:22:07 +02:00
}
c.Ui.Info(fmt.Sprintf("- Installed %s v%s (%s%s)", provider.ForDisplay(), version, authResult, keyID))
},
ProvidersFetched: func(authResults map[addrs.Provider]*getproviders.PackageAuthenticationResult) {
thirdPartySigned := false
for _, authResult := range authResults {
if authResult.ThirdPartySigned() {
thirdPartySigned = true
break
}
}
if thirdPartySigned {
c.Ui.Info(fmt.Sprintf("\nPartner and community providers are signed by their developers.\n" +
"If you'd like to know more about provider signing, you can read about it here:\n" +
"https://www.terraform.io/docs/cli/plugins/signing.html"))
}
2020-04-08 22:22:07 +02:00
},
HashPackageFailure: func(provider addrs.Provider, version getproviders.Version, err error) {
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Failed to validate installed provider",
fmt.Sprintf(
"Validating provider %s v%s failed: %s",
provider.ForDisplay(),
version,
err,
),
))
},
}
ctx = evts.OnContext(ctx)
mode := providercache.InstallNewProvidersOnly
if upgrade {
mode = providercache.InstallUpgrades
}
newLocks, err := inst.EnsureProviderVersions(ctx, previousLocks, reqs, mode)
if ctx.Err() == context.Canceled {
c.showDiagnostics(diags)
c.Ui.Error("Provider installation was canceled by an interrupt signal.")
return true, true, diags
}
if err != nil {
// The errors captured in "err" should be redundant with what we
// received via the InstallerEvents callbacks above, so we'll
// just return those as long as we have some.
if !diags.HasErrors() {
diags = diags.Append(err)
}
return true, true, diags
}
// If the provider dependencies have changed since the last run then we'll
// say a little about that in case the reader wasn't expecting a change.
// (When we later integrate module dependencies into the lock file we'll
// probably want to refactor this so that we produce one lock-file related
// message for all changes together, but this is here for now just because
// it's the smallest change relative to what came before it, which was
// a hidden JSON file specifically for tracking providers.)
if !newLocks.Equal(previousLocks) {
if previousLocks.Empty() {
// A change from empty to non-empty is special because it suggests
// we're running "terraform init" for the first time against a
// new configuration. In that case we'll take the opportunity to
// say a little about what the dependency lock file is, for new
// users or those who are upgrading from a previous Terraform
// version that didn't have dependency lock files.
c.Ui.Output(c.Colorize().Color(`
Terraform has created a lock file [bold].terraform.lock.hcl[reset] to record the provider
selections it made above. Include this file in your version control repository
so that Terraform can guarantee to make the same selections by default when
you run "terraform init" in the future.`))
} else {
c.Ui.Output(c.Colorize().Color(`
Terraform has made some changes to the provider dependency selections recorded
in the .terraform.lock.hcl file. Review those changes and commit them to your
version control system if they represent changes you intended to make.`))
}
}
// TODO: Check whether newLocks is different from previousLocks and mention
// in the UI if so. We should emit a different message if previousLocks was
// empty, because that indicates we were creating a lock file for the first
// time and so we need to introduce the user to the idea of it.
moreDiags = c.replaceLockedDependencies(newLocks)
diags = diags.Append(moreDiags)
return true, false, diags
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
}
// backendConfigOverrideBody interprets the raw values of -backend-config
// arguments into a hcl Body that should override the backend settings given
// in the configuration.
//
// If the result is nil then no override needs to be provided.
//
// If the returned diagnostics contains errors then the returned body may be
// incomplete or invalid.
func (c *InitCommand) backendConfigOverrideBody(flags rawFlags, schema *configschema.Block) (hcl.Body, tfdiags.Diagnostics) {
items := flags.AllItems()
if len(items) == 0 {
return nil, nil
}
var ret hcl.Body
var diags tfdiags.Diagnostics
synthVals := make(map[string]cty.Value)
mergeBody := func(newBody hcl.Body) {
if ret == nil {
ret = newBody
} else {
ret = configs.MergeBodies(ret, newBody)
}
}
flushVals := func() {
if len(synthVals) == 0 {
return
}
newBody := configs.SynthBody("-backend-config=...", synthVals)
mergeBody(newBody)
synthVals = make(map[string]cty.Value)
}
if len(items) == 1 && items[0].Value == "" {
// Explicitly remove all -backend-config options.
// We do this by setting an empty but non-nil ConfigOverrides.
return configs.SynthBody("-backend-config=''", synthVals), diags
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
for _, item := range items {
eq := strings.Index(item.Value, "=")
if eq == -1 {
// The value is interpreted as a filename.
newBody, fileDiags := c.loadHCLFile(item.Value)
diags = diags.Append(fileDiags)
if fileDiags.HasErrors() {
continue
}
// Generate an HCL body schema for the backend block.
var bodySchema hcl.BodySchema
for name := range schema.Attributes {
// We intentionally ignore the `Required` attribute here
// because backend config override files can be partial. The
// goal is to make sure we're not loading a file with
// extraneous attributes or blocks.
bodySchema.Attributes = append(bodySchema.Attributes, hcl.AttributeSchema{
Name: name,
})
}
for name, block := range schema.BlockTypes {
var labelNames []string
if block.Nesting == configschema.NestingMap {
labelNames = append(labelNames, "key")
}
bodySchema.Blocks = append(bodySchema.Blocks, hcl.BlockHeaderSchema{
Type: name,
LabelNames: labelNames,
})
}
// Verify that the file body matches the expected backend schema.
_, schemaDiags := newBody.Content(&bodySchema)
diags = diags.Append(schemaDiags)
if schemaDiags.HasErrors() {
continue
}
command: "terraform init" can partially initialize for 0.12upgrade There are a few constructs from 0.11 and prior that cause 0.12 parsing to fail altogether, which previously created a chicken/egg problem because we need to install the providers in order to run "terraform 0.12upgrade" and thus fix the problem. This changes "terraform init" to use the new "early configuration" loader for module and provider installation. This is built on the more permissive parser in the terraform-config-inspect package, and so it allows us to read out the top-level blocks from the configuration while accepting legacy HCL syntax. In the long run this will let us do version compatibility detection before attempting a "real" config load, giving us better error messages for any future syntax additions, but in the short term the key thing is that it allows us to install the dependencies even if the configuration isn't fully valid. Because backend init still requires full configuration, this introduces a new mode of terraform init where it detects heuristically if it seems like we need to do a configuration upgrade and does a partial init if so, before finally directing the user to run "terraform 0.12upgrade" before running any other commands. The heuristic here is based on two assumptions: - If the "early" loader finds no errors but the normal loader does, the configuration is likely to be valid for Terraform 0.11 but not 0.12. - If there's already a version constraint in the configuration that excludes Terraform versions prior to v0.12 then the configuration is probably _already_ upgraded and so it's just a normal syntax error, even if the early loader didn't detect it. Once the upgrade process is removed in 0.13.0 (users will be required to go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can be simplified to remove that special mode, but the idea of doing the dependency version checks against the liberal parser will remain valuable to increase our chances of reporting version-based incompatibilities rather than syntax errors as we add new features in future.
2019-01-14 20:11:00 +01:00
flushVals() // deal with any accumulated individual values first
mergeBody(newBody)
} else {
name := item.Value[:eq]
rawValue := item.Value[eq+1:]
attrS := schema.Attributes[name]
if attrS == nil {
diags = diags.Append(tfdiags.Sourceless(
tfdiags.Error,
"Invalid backend configuration argument",
fmt.Sprintf("The backend configuration argument %q given on the command line is not expected for the selected backend type.", name),
))
continue
}
value, valueDiags := configValueFromCLI(item.String(), rawValue, attrS.Type)
diags = diags.Append(valueDiags)
if valueDiags.HasErrors() {
continue
}
synthVals[name] = value
}
}
flushVals()
return ret, diags
}
func (c *InitCommand) AutocompleteArgs() complete.Predictor {
return complete.PredictDirs("")
}
func (c *InitCommand) AutocompleteFlags() complete.Flags {
return complete.Flags{
"-backend": completePredictBoolean,
"-backend-config": complete.PredictFiles("*.tfvars"), // can also be key=value, but we can't "predict" that
"-force-copy": complete.PredictNothing,
"-from-module": completePredictModuleSource,
"-get": completePredictBoolean,
"-input": completePredictBoolean,
"-no-color": complete.PredictNothing,
"-plugin-dir": complete.PredictDirs(""),
"-reconfigure": complete.PredictNothing,
"-upgrade": completePredictBoolean,
}
}
2014-09-27 01:03:39 +02:00
func (c *InitCommand) Help() string {
helpText := `
Usage: terraform init [options]
2017-01-19 05:50:45 +01:00
Initialize a new or existing Terraform working directory by creating
2017-01-19 05:50:45 +01:00
initial files, loading any remote state, downloading modules, etc.
This is the first command that should be run for any new or existing
Terraform configuration per machine. This sets up all the local data
2017-04-26 16:10:04 +02:00
necessary to run Terraform that is typically not committed to version
2017-01-19 05:50:45 +01:00
control.
This command is always safe to run multiple times. Though subsequent runs
may give errors, this command will never delete your configuration or
state. Even so, if you have important information, please back it up prior
to running this command, just in case.
2014-09-27 01:03:39 +02:00
Options:
-backend=true Configure the backend for this configuration.
-backend-config=path This can be either a path to an HCL file with key/value
assignments (same format as terraform.tfvars) or a
'key=value' format. This is merged with what is in the
configuration file. This can be specified multiple
times. The backend type must be in the configuration
itself.
-force-copy Suppress prompts about copying state data. This is
equivalent to providing a "yes" to all confirmation
prompts.
-from-module=SOURCE Copy the contents of the given module into the target
directory before initialization.
2017-01-19 05:50:45 +01:00
-get=true Download any modules for this configuration.
-input=true Ask for input if necessary. If false, will error if
input was required.
-no-color If specified, output won't contain any color.
2015-06-22 14:14:01 +02:00
-plugin-dir Directory containing plugin binaries. This overrides all
default search paths for plugins, and prevents the
automatic installation of plugins. This flag can be used
multiple times.
-reconfigure Reconfigure the backend, ignoring any saved
configuration.
-upgrade=false If installing modules (-get) or plugins, ignore
previously-downloaded objects and install the
latest version allowed within configured constraints.
2014-09-27 01:03:39 +02:00
`
return strings.TrimSpace(helpText)
}
func (c *InitCommand) Synopsis() string {
return "Prepare your working directory for other commands"
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}
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const errInitConfigError = `
[reset]There are some problems with the configuration, described below.
The Terraform configuration must be valid before initialization so that
Terraform can determine which modules and providers need to be installed.
`
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const errInitCopyNotEmpty = `
The working directory already contains files. The -from-module option requires
an empty directory into which a copy of the referenced module will be placed.
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To initialize the configuration already in this working directory, omit the
-from-module option.
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`
const outputInitEmpty = `
[reset][bold]Terraform initialized in an empty directory![reset]
The directory has no Terraform configuration files. You may begin working
with Terraform immediately by creating Terraform configuration files.
`
const outputInitSuccess = `
[reset][bold][green]Terraform has been successfully initialized![reset][green]
cli: allow disabling "next steps" message in terraform plan In #15884 we adjusted the plan output to give an explicit command to run to apply a plan, whereas before this command was just alluded to in the prose. Since releasing that, we've got good feedback that it's confusing to include such instructions when Terraform is running in a workflow automation tool, because such tools usually abstract away exactly what commands are run and require users to take different actions to proceed through the workflow. To accommodate such environments while retaining helpful messages for normal CLI usage, here we introduce a new environment variable TF_IN_AUTOMATION which, when set to a non-empty value, is a hint to Terraform that it isn't being run in an interactive command shell and it should thus tone down the "next steps" messaging. The documentation for this setting is included as part of the "...in automation" guide since it's not generally useful in other cases. We also intentionally disclaim comprehensive support for this since we want to avoid creating an extreme number of "if running in automation..." codepaths that would increase the testing matrix and hurt maintainability. The focus is specifically on the output of the three commands we give in the automation guide, which at present means the following two situations: * "terraform init" does not include the final paragraphs that suggest running "terraform plan" and tell you in what situations you might need to re-run "terraform init". * "terraform plan" does not include the final paragraphs that either warn about not specifying "-out=..." or instruct to run "terraform apply" with the generated plan file.
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`
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cli: allow disabling "next steps" message in terraform plan In #15884 we adjusted the plan output to give an explicit command to run to apply a plan, whereas before this command was just alluded to in the prose. Since releasing that, we've got good feedback that it's confusing to include such instructions when Terraform is running in a workflow automation tool, because such tools usually abstract away exactly what commands are run and require users to take different actions to proceed through the workflow. To accommodate such environments while retaining helpful messages for normal CLI usage, here we introduce a new environment variable TF_IN_AUTOMATION which, when set to a non-empty value, is a hint to Terraform that it isn't being run in an interactive command shell and it should thus tone down the "next steps" messaging. The documentation for this setting is included as part of the "...in automation" guide since it's not generally useful in other cases. We also intentionally disclaim comprehensive support for this since we want to avoid creating an extreme number of "if running in automation..." codepaths that would increase the testing matrix and hurt maintainability. The focus is specifically on the output of the three commands we give in the automation guide, which at present means the following two situations: * "terraform init" does not include the final paragraphs that suggest running "terraform plan" and tell you in what situations you might need to re-run "terraform init". * "terraform plan" does not include the final paragraphs that either warn about not specifying "-out=..." or instruct to run "terraform apply" with the generated plan file.
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const outputInitSuccessCLI = `[reset][green]
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You may now begin working with Terraform. Try running "terraform plan" to see
any changes that are required for your infrastructure. All Terraform commands
should now work.
If you ever set or change modules or backend configuration for Terraform,
rerun this command to reinitialize your working directory. If you forget, other
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commands will detect it and remind you to do so if necessary.
`
// providerProtocolTooOld is a message sent to the CLI UI if the provider's
// supported protocol versions are too old for the user's version of terraform,
// but a newer version of the provider is compatible.
const providerProtocolTooOld = `Provider %q v%s is not compatible with Terraform %s.
Provider version %s is the latest compatible version. Select it with the following version constraint:
version = %q
Terraform checked all of the plugin versions matching the given constraint:
%s
Consult the documentation for this provider for more information on compatibility between provider and Terraform versions.
`
// providerProtocolTooNew is a message sent to the CLI UI if the provider's
// supported protocol versions are too new for the user's version of terraform,
// and the user could either upgrade terraform or choose an older version of the
// provider.
const providerProtocolTooNew = `Provider %q v%s is not compatible with Terraform %s.
You need to downgrade to v%s or earlier. Select it with the following constraint:
version = %q
Terraform checked all of the plugin versions matching the given constraint:
%s
Consult the documentation for this provider for more information on compatibility between provider and Terraform versions.
Alternatively, upgrade to the latest version of Terraform for compatibility with newer provider releases.
`
// No version of the provider is compatible.
const errProviderVersionIncompatible = `No compatible versions of provider %s were found.`