363 lines
11 KiB
Go
363 lines
11 KiB
Go
package command
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import (
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"bytes"
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"fmt"
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"sort"
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"strings"
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"github.com/hashicorp/terraform/addrs"
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"github.com/hashicorp/terraform/backend"
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"github.com/hashicorp/terraform/repl"
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"github.com/hashicorp/terraform/states"
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"github.com/hashicorp/terraform/tfdiags"
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)
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// ApplyCommand is a Command implementation that applies a Terraform
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// configuration and actually builds or changes infrastructure.
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type ApplyCommand struct {
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Meta
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// If true, then this apply command will become the "destroy"
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// command. It is just like apply but only processes a destroy.
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Destroy bool
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}
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func (c *ApplyCommand) Run(args []string) int {
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var destroyForce, refresh, autoApprove bool
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args = c.Meta.process(args)
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cmdName := "apply"
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if c.Destroy {
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cmdName = "destroy"
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}
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cmdFlags := c.Meta.extendedFlagSet(cmdName)
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cmdFlags.BoolVar(&autoApprove, "auto-approve", false, "skip interactive approval of plan before applying")
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if c.Destroy {
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cmdFlags.BoolVar(&destroyForce, "force", false, "deprecated: same as auto-approve")
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}
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cmdFlags.BoolVar(&refresh, "refresh", true, "refresh")
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cmdFlags.IntVar(&c.Meta.parallelism, "parallelism", DefaultParallelism, "parallelism")
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cmdFlags.StringVar(&c.Meta.statePath, "state", "", "path")
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cmdFlags.StringVar(&c.Meta.stateOutPath, "state-out", "", "path")
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cmdFlags.StringVar(&c.Meta.backupPath, "backup", "", "path")
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cmdFlags.BoolVar(&c.Meta.stateLock, "lock", true, "lock state")
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cmdFlags.DurationVar(&c.Meta.stateLockTimeout, "lock-timeout", 0, "lock timeout")
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cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
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if err := cmdFlags.Parse(args); err != nil {
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return 1
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}
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var diags tfdiags.Diagnostics
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args = cmdFlags.Args()
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configPath, err := ModulePath(args)
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if err != nil {
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c.Ui.Error(err.Error())
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return 1
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}
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// Check for user-supplied plugin path
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if c.pluginPath, err = c.loadPluginPath(); err != nil {
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c.Ui.Error(fmt.Sprintf("Error loading plugin path: %s", err))
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return 1
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}
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// Check if the path is a plan
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planFile, err := c.PlanFile(configPath)
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if err != nil {
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c.Ui.Error(err.Error())
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return 1
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}
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if c.Destroy && planFile != nil {
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c.Ui.Error(fmt.Sprintf("Destroy can't be called with a plan file."))
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return 1
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}
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if planFile != nil {
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// Reset the config path for backend loading
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configPath = ""
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if !c.variableArgs.Empty() {
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diags = diags.Append(tfdiags.Sourceless(
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tfdiags.Error,
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"Can't set variables when applying a saved plan",
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"The -var and -var-file options cannot be used when applying a saved plan file, because a saved plan includes the variable values that were set when it was created.",
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))
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c.showDiagnostics(diags)
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return 1
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}
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}
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// Load the backend
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var be backend.Enhanced
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var beDiags tfdiags.Diagnostics
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if planFile == nil {
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backendConfig, configDiags := c.loadBackendConfig(configPath)
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diags = diags.Append(configDiags)
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if configDiags.HasErrors() {
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c.showDiagnostics(diags)
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return 1
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}
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be, beDiags = c.Backend(&BackendOpts{
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Config: backendConfig,
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})
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} else {
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plan, err := planFile.ReadPlan()
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if err != nil {
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diags = diags.Append(tfdiags.Sourceless(
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tfdiags.Error,
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"Failed to read plan from plan file",
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fmt.Sprintf("Cannot read the plan from the given plan file: %s.", err),
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))
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c.showDiagnostics(diags)
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return 1
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}
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if plan.Backend.Config == nil {
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// Should never happen; always indicates a bug in the creation of the plan file
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diags = diags.Append(tfdiags.Sourceless(
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tfdiags.Error,
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"Failed to read plan from plan file",
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fmt.Sprintf("The given plan file does not have a valid backend configuration. This is a bug in the Terraform command that generated this plan file."),
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))
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c.showDiagnostics(diags)
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return 1
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}
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be, beDiags = c.BackendForPlan(plan.Backend)
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}
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diags = diags.Append(beDiags)
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if beDiags.HasErrors() {
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c.showDiagnostics(diags)
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return 1
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}
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// Applying changes with dev overrides in effect could make it impossible
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// to switch back to a release version if the schema isn't compatible,
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// so we'll warn about it.
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diags = diags.Append(c.providerDevOverrideWarnings())
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// Before we delegate to the backend, we'll print any warning diagnostics
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// we've accumulated here, since the backend will start fresh with its own
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// diagnostics.
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c.showDiagnostics(diags)
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diags = nil
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// Build the operation
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opReq := c.Operation(be)
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opReq.AutoApprove = autoApprove
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opReq.ConfigDir = configPath
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opReq.Destroy = c.Destroy
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opReq.DestroyForce = destroyForce
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opReq.PlanFile = planFile
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opReq.PlanRefresh = refresh
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opReq.Type = backend.OperationTypeApply
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opReq.ConfigLoader, err = c.initConfigLoader()
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if err != nil {
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c.showDiagnostics(err)
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return 1
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}
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{
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var moreDiags tfdiags.Diagnostics
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opReq.Variables, moreDiags = c.collectVariableValues()
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diags = diags.Append(moreDiags)
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if moreDiags.HasErrors() {
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c.showDiagnostics(diags)
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return 1
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}
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}
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op, err := c.RunOperation(be, opReq)
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if err != nil {
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c.showDiagnostics(err)
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return 1
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}
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if op.Result != backend.OperationSuccess {
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return op.Result.ExitStatus()
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}
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if !c.Destroy {
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if outputs := outputsAsString(op.State, addrs.RootModuleInstance, true); outputs != "" {
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c.Ui.Output(c.Colorize().Color(outputs))
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}
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}
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return op.Result.ExitStatus()
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}
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func (c *ApplyCommand) Help() string {
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if c.Destroy {
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return c.helpDestroy()
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}
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return c.helpApply()
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}
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func (c *ApplyCommand) Synopsis() string {
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if c.Destroy {
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return "Destroy Terraform-managed infrastructure"
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}
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return "Builds or changes infrastructure"
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}
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func (c *ApplyCommand) helpApply() string {
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helpText := `
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Usage: terraform apply [options] [DIR-OR-PLAN]
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Builds or changes infrastructure according to Terraform configuration
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files in DIR.
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By default, apply scans the current directory for the configuration
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and applies the changes appropriately. However, a path to another
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configuration or an execution plan can be provided. Execution plans can be
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used to only execute a pre-determined set of actions.
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Options:
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-auto-approve Skip interactive approval of plan before applying.
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-backup=path Path to backup the existing state file before
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modifying. Defaults to the "-state-out" path with
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".backup" extension. Set to "-" to disable backup.
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-compact-warnings If Terraform produces any warnings that are not
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accompanied by errors, show them in a more compact
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form that includes only the summary messages.
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-lock=true Lock the state file when locking is supported.
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-lock-timeout=0s Duration to retry a state lock.
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-input=true Ask for input for variables if not directly set.
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-no-color If specified, output won't contain any color.
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-parallelism=n Limit the number of parallel resource operations.
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Defaults to 10.
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-refresh=true Update state prior to checking for differences. This
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has no effect if a plan file is given to apply.
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-state=path Path to read and save state (unless state-out
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is specified). Defaults to "terraform.tfstate".
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-state-out=path Path to write state to that is different than
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"-state". This can be used to preserve the old
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state.
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-target=resource Resource to target. Operation will be limited to this
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resource and its dependencies. This flag can be used
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multiple times.
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-var 'foo=bar' Set a variable in the Terraform configuration. This
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flag can be set multiple times.
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-var-file=foo Set variables in the Terraform configuration from
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a file. If "terraform.tfvars" or any ".auto.tfvars"
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files are present, they will be automatically loaded.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *ApplyCommand) helpDestroy() string {
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helpText := `
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Usage: terraform destroy [options] [DIR]
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Destroy Terraform-managed infrastructure.
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Options:
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-backup=path Path to backup the existing state file before
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modifying. Defaults to the "-state-out" path with
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".backup" extension. Set to "-" to disable backup.
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-auto-approve Skip interactive approval before destroying.
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-force Deprecated: same as auto-approve.
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-lock=true Lock the state file when locking is supported.
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-lock-timeout=0s Duration to retry a state lock.
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-no-color If specified, output won't contain any color.
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-parallelism=n Limit the number of concurrent operations.
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Defaults to 10.
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-refresh=true Update state prior to checking for differences. This
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has no effect if a plan file is given to apply.
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-state=path Path to read and save state (unless state-out
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is specified). Defaults to "terraform.tfstate".
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-state-out=path Path to write state to that is different than
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"-state". This can be used to preserve the old
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state.
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-target=resource Resource to target. Operation will be limited to this
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resource and its dependencies. This flag can be used
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multiple times.
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-var 'foo=bar' Set a variable in the Terraform configuration. This
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flag can be set multiple times.
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-var-file=foo Set variables in the Terraform configuration from
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a file. If "terraform.tfvars" or any ".auto.tfvars"
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files are present, they will be automatically loaded.
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`
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return strings.TrimSpace(helpText)
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}
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func outputsAsString(state *states.State, modPath addrs.ModuleInstance, includeHeader bool) string {
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if state == nil {
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return ""
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}
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ms := state.Module(modPath)
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if ms == nil {
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return ""
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}
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outputs := ms.OutputValues
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outputBuf := new(bytes.Buffer)
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if len(outputs) > 0 {
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if includeHeader {
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outputBuf.WriteString("[reset][bold][green]\nOutputs:\n\n")
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}
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// Output the outputs in alphabetical order
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keyLen := 0
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ks := make([]string, 0, len(outputs))
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for key, _ := range outputs {
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ks = append(ks, key)
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if len(key) > keyLen {
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keyLen = len(key)
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}
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}
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sort.Strings(ks)
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for _, k := range ks {
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v := outputs[k]
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if v.Sensitive {
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outputBuf.WriteString(fmt.Sprintf("%s = <sensitive>\n", k))
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continue
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}
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result := repl.FormatValue(v.Value, 0)
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outputBuf.WriteString(fmt.Sprintf("%s = %s\n", k, result))
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}
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}
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return strings.TrimSpace(outputBuf.String())
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}
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const outputInterrupt = `Interrupt received.
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Please wait for Terraform to exit or data loss may occur.
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Gracefully shutting down...`
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