terraform/command/workspace_new.go

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package command
import (
"context"
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"fmt"
"os"
"strings"
"github.com/hashicorp/terraform/command/clistate"
"github.com/hashicorp/terraform/states/statefile"
"github.com/hashicorp/terraform/tfdiags"
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"github.com/mitchellh/cli"
"github.com/posener/complete"
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)
type WorkspaceNewCommand struct {
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Meta
LegacyName bool
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}
func (c *WorkspaceNewCommand) Run(args []string) int {
args, err := c.Meta.process(args, true)
if err != nil {
return 1
}
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envCommandShowWarning(c.Ui, c.LegacyName)
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statePath := ""
cmdFlags := c.Meta.flagSet("workspace new")
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cmdFlags.StringVar(&statePath, "state", "", "terraform state file")
cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
if err := cmdFlags.Parse(args); err != nil {
return 1
}
args = cmdFlags.Args()
if len(args) == 0 {
c.Ui.Error("Expected a single argument: NAME.\n")
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return cli.RunResultHelp
}
newEnv := args[0]
if !validWorkspaceName(newEnv) {
c.Ui.Error(fmt.Sprintf(envInvalidName, newEnv))
return 1
}
// You can't ask to create a workspace when you're overriding the
// workspace name to be something different.
if current, isOverridden := c.WorkspaceOverridden(); current != newEnv && isOverridden {
c.Ui.Error(envIsOverriddenNewError)
return 1
}
configPath, err := ModulePath(args[1:])
if err != nil {
c.Ui.Error(err.Error())
return 1
}
var diags tfdiags.Diagnostics
backendConfig, backendDiags := c.loadBackendConfig(configPath)
diags = diags.Append(backendDiags)
if diags.HasErrors() {
c.showDiagnostics(diags)
return 1
}
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// Load the backend
b, backendDiags := c.Backend(&BackendOpts{
Config: backendConfig,
})
diags = diags.Append(backendDiags)
if backendDiags.HasErrors() {
c.showDiagnostics(diags)
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return 1
}
states, err := b.Workspaces()
if err != nil {
c.Ui.Error(fmt.Sprintf("Failed to get configured named states: %s", err))
return 1
}
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for _, s := range states {
if newEnv == s {
c.Ui.Error(fmt.Sprintf(envExists, newEnv))
return 1
}
}
_, err = b.StateMgr(newEnv)
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if err != nil {
c.Ui.Error(err.Error())
return 1
}
// now set the current workspace locally
if err := c.SetWorkspace(newEnv); err != nil {
c.Ui.Error(fmt.Sprintf("Error selecting new workspace: %s", err))
return 1
}
c.Ui.Output(c.Colorize().Color(fmt.Sprintf(
strings.TrimSpace(envCreated), newEnv)))
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if statePath == "" {
// if we're not loading a state, then we're done
return 0
}
// load the new Backend state
sMgr, err := b.StateMgr(newEnv)
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if err != nil {
c.Ui.Error(err.Error())
return 1
}
if c.stateLock {
stateLocker := clistate.NewLocker(context.Background(), c.stateLockTimeout, c.Ui, c.Colorize())
if err := stateLocker.Lock(sMgr, "workspace_delete"); err != nil {
c.Ui.Error(fmt.Sprintf("Error locking state: %s", err))
return 1
}
defer stateLocker.Unlock(nil)
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}
// read the existing state file
f, err := os.Open(statePath)
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if err != nil {
c.Ui.Error(err.Error())
return 1
}
stateFile, err := statefile.Read(f)
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if err != nil {
c.Ui.Error(err.Error())
return 1
}
// save the existing state in the new Backend.
err = sMgr.WriteState(stateFile.State)
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if err != nil {
c.Ui.Error(err.Error())
return 1
}
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err = sMgr.PersistState()
if err != nil {
c.Ui.Error(err.Error())
return 1
}
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return 0
}
func (c *WorkspaceNewCommand) AutocompleteArgs() complete.Predictor {
return completePredictSequence{
complete.PredictNothing, // the "new" subcommand itself (already matched)
complete.PredictAnything,
complete.PredictDirs(""),
}
}
func (c *WorkspaceNewCommand) AutocompleteFlags() complete.Flags {
return complete.Flags{
"-state": complete.PredictFiles("*.tfstate"),
}
}
func (c *WorkspaceNewCommand) Help() string {
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helpText := `
Usage: terraform workspace new [OPTIONS] NAME [DIR]
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Create a new Terraform workspace.
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Options:
-state=path Copy an existing state file into the new workspace.
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`
return strings.TrimSpace(helpText)
}
func (c *WorkspaceNewCommand) Synopsis() string {
return "Create a new workspace"
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}