terraform/tools/terraform-bundle/config.go

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terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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package main
import (
"fmt"
"io/ioutil"
"github.com/hashicorp/hcl"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/internal/getproviders"
terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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"github.com/hashicorp/terraform/plugin/discovery"
)
var zeroThirteen = discovery.ConstraintStr(">= 0.13.0").MustParse()
tools/terraform-bundle: refuse to bundle versions <0.12.0 Since terraform-bundle is just a different frontend to Terraform's module installer, it is subject to the same installation constraints as Terraform itself. Terraform 0.12 cannot install providers targeting Terraform 0.11 and earlier, and so therefore terraform-bundle built with Terraform 0.12 cannot either. A build of terraform-bundle from the v0.11 line must be used instead. Without this change, the latest revisions of terraform-bundle would install plugins for Terraform 0.12 to bundle along with Terraform 0.10 or 0.11, which will not work at runtime due to the plugin protocol mismatch. Until now, terraform-bundle was incorrectly labelled with its own version number even though in practice it has no version identity separate from Terraform itself. Part of this change, then, is to make the terraform-bundle version match the Terraform version it was built against, though any prior builds will of course continue to refer to themselves as 0.0.1. If asked to create a bundle for a version of Terraform v0.12 or greater, an error will be returned instructing the user to use a build from the v0.11 branch or one of the v0.11.x tags in order to bundle those versions. This also includes a small fix for a bug where the tool would not fail properly when the requested Terraform version is not available for installation, instead just producing a zip file with no "terraform" executable inside at all. Now it will fail, allowing automated build processes to detect it and not produce a broken archive for distribution.
2019-01-23 23:16:52 +01:00
terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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type Config struct {
Terraform TerraformConfig `hcl:"terraform"`
Providers map[string]ProviderConfig `hcl:"providers"`
terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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}
type TerraformConfig struct {
Version discovery.VersionStr `hcl:"version"`
}
type ProviderConfig struct {
Versions []string `hcl:"versions"`
Source string `hcl:"source"`
}
terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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func LoadConfig(src []byte, filename string) (*Config, error) {
config := &Config{}
err := hcl.Decode(config, string(src))
if err != nil {
return config, err
}
err = config.validate()
return config, err
}
func LoadConfigFile(filename string) (*Config, error) {
src, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return LoadConfig(src, filename)
}
func (c *Config) validate() error {
if c.Terraform.Version == "" {
return fmt.Errorf("terraform.version is required")
}
tools/terraform-bundle: refuse to bundle versions <0.12.0 Since terraform-bundle is just a different frontend to Terraform's module installer, it is subject to the same installation constraints as Terraform itself. Terraform 0.12 cannot install providers targeting Terraform 0.11 and earlier, and so therefore terraform-bundle built with Terraform 0.12 cannot either. A build of terraform-bundle from the v0.11 line must be used instead. Without this change, the latest revisions of terraform-bundle would install plugins for Terraform 0.12 to bundle along with Terraform 0.10 or 0.11, which will not work at runtime due to the plugin protocol mismatch. Until now, terraform-bundle was incorrectly labelled with its own version number even though in practice it has no version identity separate from Terraform itself. Part of this change, then, is to make the terraform-bundle version match the Terraform version it was built against, though any prior builds will of course continue to refer to themselves as 0.0.1. If asked to create a bundle for a version of Terraform v0.12 or greater, an error will be returned instructing the user to use a build from the v0.11 branch or one of the v0.11.x tags in order to bundle those versions. This also includes a small fix for a bug where the tool would not fail properly when the requested Terraform version is not available for installation, instead just producing a zip file with no "terraform" executable inside at all. Now it will fail, allowing automated build processes to detect it and not produce a broken archive for distribution.
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var v discovery.Version
var err error
if v, err = c.Terraform.Version.Parse(); err != nil {
terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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return fmt.Errorf("terraform.version: %s", err)
}
if !zeroThirteen.Allows(v) {
return fmt.Errorf("this version of terraform-bundle can only build bundles for Terraform v0.13 and later; build terraform-bundle from a release tag (such as v0.12.*) to construct bundles for earlier versions")
tools/terraform-bundle: refuse to bundle versions <0.12.0 Since terraform-bundle is just a different frontend to Terraform's module installer, it is subject to the same installation constraints as Terraform itself. Terraform 0.12 cannot install providers targeting Terraform 0.11 and earlier, and so therefore terraform-bundle built with Terraform 0.12 cannot either. A build of terraform-bundle from the v0.11 line must be used instead. Without this change, the latest revisions of terraform-bundle would install plugins for Terraform 0.12 to bundle along with Terraform 0.10 or 0.11, which will not work at runtime due to the plugin protocol mismatch. Until now, terraform-bundle was incorrectly labelled with its own version number even though in practice it has no version identity separate from Terraform itself. Part of this change, then, is to make the terraform-bundle version match the Terraform version it was built against, though any prior builds will of course continue to refer to themselves as 0.0.1. If asked to create a bundle for a version of Terraform v0.12 or greater, an error will be returned instructing the user to use a build from the v0.11 branch or one of the v0.11.x tags in order to bundle those versions. This also includes a small fix for a bug where the tool would not fail properly when the requested Terraform version is not available for installation, instead just producing a zip file with no "terraform" executable inside at all. Now it will fail, allowing automated build processes to detect it and not produce a broken archive for distribution.
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}
terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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if c.Providers == nil {
c.Providers = map[string]ProviderConfig{}
terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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}
for k, cs := range c.Providers {
if cs.Source != "" {
_, diags := addrs.ParseProviderSourceString(cs.Source)
if diags.HasErrors() {
return fmt.Errorf("providers.%s: %s", k, diags.Err().Error())
}
}
for _, c := range cs.Versions {
if _, err := getproviders.ParseVersionConstraints(c); err != nil {
terraform-bundle tool for bundling Terraform with providers Normally "terraform init" will download and install the plugins necessary to work with a particular configuration, but sometimes Terraform is deployed in a network that, for one reason or another, cannot access the official plugin repository for automatic download. terraform-bundle provides an alternative method, allowing the auto-download process to be run out-of-band on a separate machine that _does_ have access to the repository. The result is a zip file that can be extracted onto the target system to install both the desired Terraform version and a selection of providers, thus avoiding the need for on-the-fly plugin installation. This is provided as a separate tool from Terraform because it is not something that most users will need. In the rare case where this is needed, we will for the moment assume that users are able to build this tool themselves. We may later release it in a pre-built form, if it proves to be generally useful. It uses the same API from the plugin/discovery package is is used by the auto-install behavior in "terraform init", so plugin versions are resolved in the same way. However, it's expected that several different Terraform configurations will run from the same bundle, so this tool allows the bundle to include potentially many versions of the same provider and thus allows each Terraform configuration to select from the available versions in the bundle, avoiding the need to upgrade all configurations to new provider versions in lockstep.
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return fmt.Errorf("providers.%s: %s", k, err)
}
}
}
return nil
}