terraform/command/refresh.go

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package command
import (
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"context"
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"fmt"
"strings"
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"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/config"
"github.com/hashicorp/terraform/terraform"
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)
// RefreshCommand is a cli.Command implementation that refreshes the state
// file.
type RefreshCommand struct {
Meta
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}
func (c *RefreshCommand) Run(args []string) int {
args = c.Meta.process(args, true)
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cmdFlags := c.Meta.flagSet("refresh")
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cmdFlags.StringVar(&c.Meta.statePath, "state", DefaultStateFilename, "path")
cmdFlags.IntVar(&c.Meta.parallelism, "parallelism", 0, "parallelism")
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cmdFlags.StringVar(&c.Meta.stateOutPath, "state-out", "", "path")
cmdFlags.StringVar(&c.Meta.backupPath, "backup", "", "path")
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cmdFlags.BoolVar(&c.Meta.stateLock, "lock", true, "lock state")
cmdFlags.DurationVar(&c.Meta.stateLockTimeout, "lock-timeout", 0, "lock timeout")
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cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
if err := cmdFlags.Parse(args); err != nil {
return 1
}
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configPath, err := ModulePath(cmdFlags.Args())
if err != nil {
c.Ui.Error(err.Error())
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return 1
}
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// Load the module
mod, err := c.Module(configPath)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Failed to load root config module: %s", err))
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return 1
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}
var conf *config.Config
if mod != nil {
conf = mod.Config()
}
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// Load the backend
b, err := c.Backend(&BackendOpts{
Config: conf,
})
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Failed to load backend: %s", err))
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return 1
}
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// Build the operation
opReq := c.Operation()
opReq.Type = backend.OperationTypeRefresh
opReq.Module = mod
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// Perform the operation
op, err := b.Operation(context.Background(), opReq)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error starting operation: %s", err))
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return 1
}
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// Wait for the operation to complete
<-op.Done()
if err := op.Err; err != nil {
c.Ui.Error(err.Error())
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return 1
}
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// Output the outputs
if outputs := outputsAsString(op.State, terraform.RootModulePath, nil, true); outputs != "" {
c.Ui.Output(c.Colorize().Color(outputs))
}
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return 0
}
func (c *RefreshCommand) Help() string {
helpText := `
Usage: terraform refresh [options] [dir]
Update the state file of your infrastructure with metadata that matches
the physical resources they are tracking.
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This will not modify your infrastructure, but it can modify your
state file to update metadata. This metadata might cause new changes
to occur when you generate a plan or call apply next.
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Options:
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-backup=path Path to backup the existing state file before
modifying. Defaults to the "-state-out" path with
".backup" extension. Set to "-" to disable backup.
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-input=true Ask for input for variables if not directly set.
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-lock=true Lock the state file when locking is supported.
-lock-timeout=0s Duration to retry a state lock.
-no-color If specified, output won't contain any color.
-state=path Path to read and save state (unless state-out
is specified). Defaults to "terraform.tfstate".
-state-out=path Path to write updated state file. By default, the
"-state" path will be used.
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-target=resource Resource to target. Operation will be limited to this
resource and its dependencies. This flag can be used
multiple times.
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-var 'foo=bar' Set a variable in the Terraform configuration. This
flag can be set multiple times.
-var-file=foo Set variables in the Terraform configuration from
a file. If "terraform.tfvars" is present, it will be
automatically loaded if this flag is not specified.
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`
return strings.TrimSpace(helpText)
}
func (c *RefreshCommand) Synopsis() string {
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return "Update local state file against real resources"
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}