mirror of
https://github.com/opentofu/opentofu.git
synced 2024-12-28 01:41:48 -06:00
36d0a50427
This is part of a general effort to move all of Terraform's non-library package surface under internal in order to reinforce that these are for internal use within Terraform only. If you were previously importing packages under this prefix into an external codebase, you could pin to an earlier release tag as an interim solution until you've make a plan to achieve the same functionality some other way.
368 lines
12 KiB
Go
368 lines
12 KiB
Go
package command
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"log"
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/hashicorp/hcl/v2"
|
|
"github.com/hashicorp/hcl/v2/hclsyntax"
|
|
|
|
"github.com/hashicorp/terraform/internal/addrs"
|
|
"github.com/hashicorp/terraform/internal/backend"
|
|
"github.com/hashicorp/terraform/internal/command/arguments"
|
|
"github.com/hashicorp/terraform/internal/command/views"
|
|
"github.com/hashicorp/terraform/internal/configs"
|
|
"github.com/hashicorp/terraform/internal/terraform"
|
|
"github.com/hashicorp/terraform/internal/tfdiags"
|
|
)
|
|
|
|
// ImportCommand is a cli.Command implementation that imports resources
|
|
// into the Terraform state.
|
|
type ImportCommand struct {
|
|
Meta
|
|
}
|
|
|
|
func (c *ImportCommand) Run(args []string) int {
|
|
// Get the pwd since its our default -config flag value
|
|
pwd, err := os.Getwd()
|
|
if err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error getting pwd: %s", err))
|
|
return 1
|
|
}
|
|
|
|
var configPath string
|
|
args = c.Meta.process(args)
|
|
|
|
cmdFlags := c.Meta.extendedFlagSet("import")
|
|
cmdFlags.BoolVar(&c.ignoreRemoteVersion, "ignore-remote-version", false, "continue even if remote and local Terraform versions are incompatible")
|
|
cmdFlags.IntVar(&c.Meta.parallelism, "parallelism", DefaultParallelism, "parallelism")
|
|
cmdFlags.StringVar(&c.Meta.statePath, "state", "", "path")
|
|
cmdFlags.StringVar(&c.Meta.stateOutPath, "state-out", "", "path")
|
|
cmdFlags.StringVar(&c.Meta.backupPath, "backup", "", "path")
|
|
cmdFlags.StringVar(&configPath, "config", pwd, "path")
|
|
cmdFlags.BoolVar(&c.Meta.stateLock, "lock", true, "lock state")
|
|
cmdFlags.DurationVar(&c.Meta.stateLockTimeout, "lock-timeout", 0, "lock timeout")
|
|
cmdFlags.BoolVar(&c.Meta.allowMissingConfig, "allow-missing-config", false, "allow missing config")
|
|
cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
|
|
if err := cmdFlags.Parse(args); err != nil {
|
|
return 1
|
|
}
|
|
|
|
args = cmdFlags.Args()
|
|
if len(args) != 2 {
|
|
c.Ui.Error("The import command expects two arguments.")
|
|
cmdFlags.Usage()
|
|
return 1
|
|
}
|
|
|
|
var diags tfdiags.Diagnostics
|
|
|
|
// Parse the provided resource address.
|
|
traversalSrc := []byte(args[0])
|
|
traversal, travDiags := hclsyntax.ParseTraversalAbs(traversalSrc, "<import-address>", hcl.Pos{Line: 1, Column: 1})
|
|
diags = diags.Append(travDiags)
|
|
if travDiags.HasErrors() {
|
|
c.registerSynthConfigSource("<import-address>", traversalSrc) // so we can include a source snippet
|
|
c.showDiagnostics(diags)
|
|
c.Ui.Info(importCommandInvalidAddressReference)
|
|
return 1
|
|
}
|
|
addr, addrDiags := addrs.ParseAbsResourceInstance(traversal)
|
|
diags = diags.Append(addrDiags)
|
|
if addrDiags.HasErrors() {
|
|
c.registerSynthConfigSource("<import-address>", traversalSrc) // so we can include a source snippet
|
|
c.showDiagnostics(diags)
|
|
c.Ui.Info(importCommandInvalidAddressReference)
|
|
return 1
|
|
}
|
|
|
|
if addr.Resource.Resource.Mode != addrs.ManagedResourceMode {
|
|
diags = diags.Append(errors.New("A managed resource address is required. Importing into a data resource is not allowed."))
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
|
|
if !c.dirIsConfigPath(configPath) {
|
|
diags = diags.Append(&hcl.Diagnostic{
|
|
Severity: hcl.DiagError,
|
|
Summary: "No Terraform configuration files",
|
|
Detail: fmt.Sprintf(
|
|
"The directory %s does not contain any Terraform configuration files (.tf or .tf.json). To specify a different configuration directory, use the -config=\"...\" command line option.",
|
|
configPath,
|
|
),
|
|
})
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
|
|
// Load the full config, so we can verify that the target resource is
|
|
// already configured.
|
|
config, configDiags := c.loadConfig(configPath)
|
|
diags = diags.Append(configDiags)
|
|
if configDiags.HasErrors() {
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
|
|
// Verify that the given address points to something that exists in config.
|
|
// This is to reduce the risk that a typo in the resource address will
|
|
// import something that Terraform will want to immediately destroy on
|
|
// the next plan, and generally acts as a reassurance of user intent.
|
|
targetConfig := config.DescendentForInstance(addr.Module)
|
|
if targetConfig == nil {
|
|
modulePath := addr.Module.String()
|
|
diags = diags.Append(&hcl.Diagnostic{
|
|
Severity: hcl.DiagError,
|
|
Summary: "Import to non-existent module",
|
|
Detail: fmt.Sprintf(
|
|
"%s is not defined in the configuration. Please add configuration for this module before importing into it.",
|
|
modulePath,
|
|
),
|
|
})
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
targetMod := targetConfig.Module
|
|
rcs := targetMod.ManagedResources
|
|
var rc *configs.Resource
|
|
resourceRelAddr := addr.Resource.Resource
|
|
for _, thisRc := range rcs {
|
|
if resourceRelAddr.Type == thisRc.Type && resourceRelAddr.Name == thisRc.Name {
|
|
rc = thisRc
|
|
break
|
|
}
|
|
}
|
|
if !c.Meta.allowMissingConfig && rc == nil {
|
|
modulePath := addr.Module.String()
|
|
if modulePath == "" {
|
|
modulePath = "the root module"
|
|
}
|
|
|
|
c.showDiagnostics(diags)
|
|
|
|
// This is not a diagnostic because currently our diagnostics printer
|
|
// doesn't support having a code example in the detail, and there's
|
|
// a code example in this message.
|
|
// TODO: Improve the diagnostics printer so we can use it for this
|
|
// message.
|
|
c.Ui.Error(fmt.Sprintf(
|
|
importCommandMissingResourceFmt,
|
|
addr, modulePath, resourceRelAddr.Type, resourceRelAddr.Name,
|
|
))
|
|
return 1
|
|
}
|
|
|
|
// Check for user-supplied plugin path
|
|
if c.pluginPath, err = c.loadPluginPath(); err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error loading plugin path: %s", err))
|
|
return 1
|
|
}
|
|
|
|
// Load the backend
|
|
b, backendDiags := c.Backend(&BackendOpts{
|
|
Config: config.Module.Backend,
|
|
})
|
|
diags = diags.Append(backendDiags)
|
|
if backendDiags.HasErrors() {
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
|
|
// We require a backend.Local to build a context.
|
|
// This isn't necessarily a "local.Local" backend, which provides local
|
|
// operations, however that is the only current implementation. A
|
|
// "local.Local" backend also doesn't necessarily provide local state, as
|
|
// that may be delegated to a "remotestate.Backend".
|
|
local, ok := b.(backend.Local)
|
|
if !ok {
|
|
c.Ui.Error(ErrUnsupportedLocalOp)
|
|
return 1
|
|
}
|
|
|
|
// Build the operation
|
|
opReq := c.Operation(b)
|
|
opReq.ConfigDir = configPath
|
|
opReq.ConfigLoader, err = c.initConfigLoader()
|
|
if err != nil {
|
|
diags = diags.Append(err)
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
opReq.Hooks = []terraform.Hook{c.uiHook()}
|
|
{
|
|
var moreDiags tfdiags.Diagnostics
|
|
opReq.Variables, moreDiags = c.collectVariableValues()
|
|
diags = diags.Append(moreDiags)
|
|
if moreDiags.HasErrors() {
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
}
|
|
opReq.View = views.NewOperation(arguments.ViewHuman, c.RunningInAutomation, c.View)
|
|
|
|
// Check remote Terraform version is compatible
|
|
remoteVersionDiags := c.remoteBackendVersionCheck(b, opReq.Workspace)
|
|
diags = diags.Append(remoteVersionDiags)
|
|
c.showDiagnostics(diags)
|
|
if diags.HasErrors() {
|
|
return 1
|
|
}
|
|
|
|
// Get the context
|
|
ctx, state, ctxDiags := local.Context(opReq)
|
|
diags = diags.Append(ctxDiags)
|
|
if ctxDiags.HasErrors() {
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
|
|
// Successfully creating the context can result in a lock, so ensure we release it
|
|
defer func() {
|
|
diags := opReq.StateLocker.Unlock()
|
|
if diags.HasErrors() {
|
|
c.showDiagnostics(diags)
|
|
}
|
|
}()
|
|
|
|
// Perform the import. Note that as you can see it is possible for this
|
|
// API to import more than one resource at once. For now, we only allow
|
|
// one while we stabilize this feature.
|
|
newState, importDiags := ctx.Import(&terraform.ImportOpts{
|
|
Targets: []*terraform.ImportTarget{
|
|
&terraform.ImportTarget{
|
|
Addr: addr,
|
|
ID: args[1],
|
|
},
|
|
},
|
|
})
|
|
diags = diags.Append(importDiags)
|
|
if diags.HasErrors() {
|
|
c.showDiagnostics(diags)
|
|
return 1
|
|
}
|
|
|
|
// Persist the final state
|
|
log.Printf("[INFO] Writing state output to: %s", c.Meta.StateOutPath())
|
|
if err := state.WriteState(newState); err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error writing state file: %s", err))
|
|
return 1
|
|
}
|
|
if err := state.PersistState(); err != nil {
|
|
c.Ui.Error(fmt.Sprintf("Error writing state file: %s", err))
|
|
return 1
|
|
}
|
|
|
|
c.Ui.Output(c.Colorize().Color("[reset][green]\n" + importCommandSuccessMsg))
|
|
|
|
if c.Meta.allowMissingConfig && rc == nil {
|
|
c.Ui.Output(c.Colorize().Color("[reset][yellow]\n" + importCommandAllowMissingResourceMsg))
|
|
}
|
|
|
|
c.showDiagnostics(diags)
|
|
if diags.HasErrors() {
|
|
return 1
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
func (c *ImportCommand) Help() string {
|
|
helpText := `
|
|
Usage: terraform [global options] import [options] ADDR ID
|
|
|
|
Import existing infrastructure into your Terraform state.
|
|
|
|
This will find and import the specified resource into your Terraform
|
|
state, allowing existing infrastructure to come under Terraform
|
|
management without having to be initially created by Terraform.
|
|
|
|
The ADDR specified is the address to import the resource to. Please
|
|
see the documentation online for resource addresses. The ID is a
|
|
resource-specific ID to identify that resource being imported. Please
|
|
reference the documentation for the resource type you're importing to
|
|
determine the ID syntax to use. It typically matches directly to the ID
|
|
that the provider uses.
|
|
|
|
The current implementation of Terraform import can only import resources
|
|
into the state. It does not generate configuration. A future version of
|
|
Terraform will also generate configuration.
|
|
|
|
Because of this, prior to running terraform import it is necessary to write
|
|
a resource configuration block for the resource manually, to which the
|
|
imported object will be attached.
|
|
|
|
This command will not modify your infrastructure, but it will make
|
|
network requests to inspect parts of your infrastructure relevant to
|
|
the resource being imported.
|
|
|
|
Options:
|
|
|
|
-config=path Path to a directory of Terraform configuration files
|
|
to use to configure the provider. Defaults to pwd.
|
|
If no config files are present, they must be provided
|
|
via the input prompts or env vars.
|
|
|
|
-allow-missing-config Allow import when no resource configuration block exists.
|
|
|
|
-input=false Disable interactive input prompts.
|
|
|
|
-lock=false Don't hold a state lock during the operation. This is
|
|
dangerous if others might concurrently run commands
|
|
against the same workspace.
|
|
|
|
-lock-timeout=0s Duration to retry a state lock.
|
|
|
|
-no-color If specified, output won't contain any color.
|
|
|
|
-var 'foo=bar' Set a variable in the Terraform configuration. This
|
|
flag can be set multiple times. This is only useful
|
|
with the "-config" flag.
|
|
|
|
-var-file=foo Set variables in the Terraform configuration from
|
|
a file. If "terraform.tfvars" or any ".auto.tfvars"
|
|
files are present, they will be automatically loaded.
|
|
|
|
-ignore-remote-version A rare option used for the remote backend only. See
|
|
the remote backend documentation for more information.
|
|
|
|
-state, state-out, and -backup are legacy options supported for the local
|
|
backend only. For more information, see the local backend's documentation.
|
|
|
|
`
|
|
return strings.TrimSpace(helpText)
|
|
}
|
|
|
|
func (c *ImportCommand) Synopsis() string {
|
|
return "Associate existing infrastructure with a Terraform resource"
|
|
}
|
|
|
|
const importCommandInvalidAddressReference = `For information on valid syntax, see:
|
|
https://www.terraform.io/docs/cli/state/resource-addressing.html`
|
|
|
|
const importCommandMissingResourceFmt = `[reset][bold][red]Error:[reset][bold] resource address %q does not exist in the configuration.[reset]
|
|
|
|
Before importing this resource, please create its configuration in %s. For example:
|
|
|
|
resource %q %q {
|
|
# (resource arguments)
|
|
}
|
|
`
|
|
|
|
const importCommandSuccessMsg = `Import successful!
|
|
|
|
The resources that were imported are shown above. These resources are now in
|
|
your Terraform state and will henceforth be managed by Terraform.
|
|
`
|
|
|
|
const importCommandAllowMissingResourceMsg = `Import does not generate resource configuration, you must create a resource
|
|
configuration block that matches the current or desired state manually.
|
|
|
|
If there is no matching resource configuration block for the imported
|
|
resource, Terraform will delete the resource on the next "terraform apply".
|
|
It is recommended that you run "terraform plan" to verify that the
|
|
configuration is correct and complete.
|
|
`
|