terraform/command/env_new.go

140 lines
2.6 KiB
Go

package command
import (
"fmt"
"os"
"strings"
"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/state"
"github.com/hashicorp/terraform/terraform"
"github.com/mitchellh/cli"
clistate "github.com/hashicorp/terraform/command/state"
)
type EnvNewCommand struct {
Meta
}
func (c *EnvNewCommand) Run(args []string) int {
args = c.Meta.process(args, true)
statePath := ""
cmdFlags := c.Meta.flagSet("env new")
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 NAME.\n")
return cli.RunResultHelp
}
newEnv := args[0]
configPath, err := ModulePath(args[1:])
if err != nil {
c.Ui.Error(err.Error())
return 1
}
// Load the backend
b, err := c.Backend(&BackendOpts{ConfigPath: configPath})
if err != nil {
c.Ui.Error(fmt.Sprintf("Failed to load backend: %s", err))
return 1
}
multi, ok := b.(backend.MultiState)
if !ok {
c.Ui.Error(envNotSupported)
return 1
}
states, _, err := multi.States()
for _, s := range states {
if newEnv == s {
c.Ui.Error(fmt.Sprintf(envExists, newEnv))
return 1
}
}
err = multi.ChangeState(newEnv)
if err != nil {
c.Ui.Error(err.Error())
return 1
}
c.Ui.Output(
c.Colorize().Color(
fmt.Sprintf(envCreated, newEnv),
),
)
if statePath == "" {
// if we're not loading a state, then we're done
return 0
}
// load the new Backend state
sMgr, err := b.State()
if err != nil {
c.Ui.Error(err.Error())
return 1
}
// Lock the state if we can
lockInfo := state.NewLockInfo()
lockInfo.Operation = "env new"
lockID, err := clistate.Lock(sMgr, lockInfo, c.Ui, c.Colorize())
if err != nil {
c.Ui.Error(fmt.Sprintf("Error locking state: %s", err))
return 1
}
defer clistate.Unlock(sMgr, lockID, c.Ui, c.Colorize())
// read the existing state file
stateFile, err := os.Open(statePath)
if err != nil {
c.Ui.Error(err.Error())
return 1
}
s, err := terraform.ReadState(stateFile)
if err != nil {
c.Ui.Error(err.Error())
return 1
}
// save the existing state in the new Backend.
err = sMgr.WriteState(s)
if err != nil {
c.Ui.Error(err.Error())
return 1
}
return 0
}
func (c *EnvNewCommand) Help() string {
helpText := `
Usage: terraform env new [OPTIONS] NAME [DIR]
Create a new Terraform environment.
Options:
-state=path Copy an existing state file into the new environment.
`
return strings.TrimSpace(helpText)
}
func (c *EnvNewCommand) Synopsis() string {
return "Create a new environment"
}