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key_vault_key_resource.go
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key_vault_key_resource.go
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package keyvault
import (
"context"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rsa"
"crypto/x509"
"encoding/base64"
"encoding/pem"
"fmt"
"log"
"math/big"
"time"
"github.com/Azure/azure-sdk-for-go/services/keyvault/v7.1/keyvault"
"github.com/Azure/go-autorest/autorest"
"github.com/Azure/go-autorest/autorest/date"
"github.com/kevinklinger/terraform-provider-azurerm/v2/helpers/tf"
"github.com/kevinklinger/terraform-provider-azurerm/v2/internal/clients"
"github.com/kevinklinger/terraform-provider-azurerm/v2/internal/services/keyvault/parse"
keyVaultValidate "github.com/kevinklinger/terraform-provider-azurerm/v2/internal/services/keyvault/validate"
"github.com/kevinklinger/terraform-provider-azurerm/v2/internal/tags"
"github.com/kevinklinger/terraform-provider-azurerm/v2/internal/tf/pluginsdk"
"github.com/kevinklinger/terraform-provider-azurerm/v2/internal/tf/validation"
"github.com/kevinklinger/terraform-provider-azurerm/v2/internal/timeouts"
"github.com/kevinklinger/terraform-provider-azurerm/v2/utils"
"golang.org/x/crypto/ssh"
)
func resourceKeyVaultKey() *pluginsdk.Resource {
return &pluginsdk.Resource{
Create: resourceKeyVaultKeyCreate,
Read: resourceKeyVaultKeyRead,
Update: resourceKeyVaultKeyUpdate,
Delete: resourceKeyVaultKeyDelete,
Importer: pluginsdk.DefaultImporter(),
Timeouts: &pluginsdk.ResourceTimeout{
Create: pluginsdk.DefaultTimeout(30 * time.Minute),
Read: pluginsdk.DefaultTimeout(5 * time.Minute),
Update: pluginsdk.DefaultTimeout(30 * time.Minute),
Delete: pluginsdk.DefaultTimeout(30 * time.Minute),
},
Schema: map[string]*pluginsdk.Schema{
"name": {
Type: pluginsdk.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: keyVaultValidate.NestedItemName,
},
"key_vault_id": {
Type: pluginsdk.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: keyVaultValidate.VaultID,
},
"key_type": {
Type: pluginsdk.TypeString,
Required: true,
ForceNew: true,
// turns out Azure's *really* sensitive about the casing of these
// issue: https://github.com/Azure/azure-rest-api-specs/issues/1739
ValidateFunc: validation.StringInSlice([]string{
// TODO: add `oct` back in once this is fixed
// https://github.com/Azure/azure-rest-api-specs/issues/1739#issuecomment-332236257
string(keyvault.EC),
string(keyvault.ECHSM),
string(keyvault.RSA),
string(keyvault.RSAHSM),
}, false),
},
"key_size": {
Type: pluginsdk.TypeInt,
Optional: true,
ForceNew: true,
ConflictsWith: []string{"curve"},
},
"key_opts": {
Type: pluginsdk.TypeList,
Required: true,
Elem: &pluginsdk.Schema{
Type: pluginsdk.TypeString,
// turns out Azure's *really* sensitive about the casing of these
// issue: https://github.com/Azure/azure-rest-api-specs/issues/1739
ValidateFunc: validation.StringInSlice([]string{
string(keyvault.Decrypt),
string(keyvault.Encrypt),
string(keyvault.Sign),
string(keyvault.UnwrapKey),
string(keyvault.Verify),
string(keyvault.WrapKey),
}, false),
},
},
"curve": {
Type: pluginsdk.TypeString,
Optional: true,
Computed: true,
ForceNew: true,
DiffSuppressFunc: func(k, old, new string, d *pluginsdk.ResourceData) bool {
return old == "SECP256K1" && new == string(keyvault.P256K)
},
ValidateFunc: validation.StringInSlice([]string{
string(keyvault.P256),
string(keyvault.P256K),
string(keyvault.P384),
string(keyvault.P521),
"SECP256K1", // TODO: remove this in v3.0 as it was renamed to keyvault.P256K
}, false),
// TODO: the curve name should probably be mandatory for EC in the future,
// but handle the diff so that we don't break existing configurations and
// imported EC keys
ConflictsWith: []string{"key_size"},
},
"not_before_date": {
Type: pluginsdk.TypeString,
Optional: true,
ValidateFunc: validation.IsRFC3339Time,
},
"expiration_date": {
Type: pluginsdk.TypeString,
Optional: true,
ValidateFunc: validation.IsRFC3339Time,
},
// Computed
"version": {
Type: pluginsdk.TypeString,
Computed: true,
},
"versionless_id": {
Type: pluginsdk.TypeString,
Computed: true,
},
"n": {
Type: pluginsdk.TypeString,
Computed: true,
},
"e": {
Type: pluginsdk.TypeString,
Computed: true,
},
"x": {
Type: pluginsdk.TypeString,
Computed: true,
},
"y": {
Type: pluginsdk.TypeString,
Computed: true,
},
"public_key_pem": {
Type: pluginsdk.TypeString,
Computed: true,
},
"public_key_openssh": {
Type: pluginsdk.TypeString,
Computed: true,
},
"tags": tags.Schema(),
},
}
}
func resourceKeyVaultKeyCreate(d *pluginsdk.ResourceData, meta interface{}) error {
keyVaultsClient := meta.(*clients.Client).KeyVault
client := meta.(*clients.Client).KeyVault.ManagementClient
ctx, cancel := timeouts.ForCreate(meta.(*clients.Client).StopContext, d)
defer cancel()
log.Print("[INFO] preparing arguments for AzureRM KeyVault Key creation.")
name := d.Get("name").(string)
keyVaultId, err := parse.VaultID(d.Get("key_vault_id").(string))
if err != nil {
return err
}
keyVaultBaseUri, err := keyVaultsClient.BaseUriForKeyVault(ctx, *keyVaultId)
if err != nil {
return fmt.Errorf("looking up Key %q vault url from id %q: %+v", name, *keyVaultId, err)
}
existing, err := client.GetKey(ctx, *keyVaultBaseUri, name, "")
if err != nil {
if !utils.ResponseWasNotFound(existing.Response) {
return fmt.Errorf("checking for presence of existing Key %q (Key Vault %q): %s", name, *keyVaultBaseUri, err)
}
}
if existing.Key != nil && existing.Key.Kid != nil && *existing.Key.Kid != "" {
return tf.ImportAsExistsError("azurerm_key_vault_key", *existing.Key.Kid)
}
keyType := d.Get("key_type").(string)
keyOptions := expandKeyVaultKeyOptions(d)
t := d.Get("tags").(map[string]interface{})
// TODO: support Importing Keys once this is fixed:
// https://github.com/Azure/azure-rest-api-specs/issues/1747
parameters := keyvault.KeyCreateParameters{
Kty: keyvault.JSONWebKeyType(keyType),
KeyOps: keyOptions,
KeyAttributes: &keyvault.KeyAttributes{
Enabled: utils.Bool(true),
},
Tags: tags.Expand(t),
}
if parameters.Kty == keyvault.EC || parameters.Kty == keyvault.ECHSM {
curveName := d.Get("curve").(string)
parameters.Curve = keyvault.JSONWebKeyCurveName(curveName)
} else if parameters.Kty == keyvault.RSA || parameters.Kty == keyvault.RSAHSM {
keySize, ok := d.GetOk("key_size")
if !ok {
return fmt.Errorf("Key size is required when creating an RSA key")
}
parameters.KeySize = utils.Int32(int32(keySize.(int)))
}
// TODO: support `oct` once this is fixed
// https://github.com/Azure/azure-rest-api-specs/issues/1739#issuecomment-332236257
if v, ok := d.GetOk("not_before_date"); ok {
notBeforeDate, _ := time.Parse(time.RFC3339, v.(string)) // validated by schema
notBeforeUnixTime := date.UnixTime(notBeforeDate)
parameters.KeyAttributes.NotBefore = ¬BeforeUnixTime
}
if v, ok := d.GetOk("expiration_date"); ok {
expirationDate, _ := time.Parse(time.RFC3339, v.(string)) // validated by schema
expirationUnixTime := date.UnixTime(expirationDate)
parameters.KeyAttributes.Expires = &expirationUnixTime
}
if resp, err := client.CreateKey(ctx, *keyVaultBaseUri, name, parameters); err != nil {
if meta.(*clients.Client).Features.KeyVault.RecoverSoftDeletedKeyVaults && utils.ResponseWasConflict(resp.Response) {
recoveredKey, err := client.RecoverDeletedKey(ctx, *keyVaultBaseUri, name)
if err != nil {
return err
}
log.Printf("[DEBUG] Recovering Key %q with ID: %q", name, *recoveredKey.Key.Kid)
if kid := recoveredKey.Key.Kid; kid != nil {
stateConf := &pluginsdk.StateChangeConf{
Pending: []string{"pending"},
Target: []string{"available"},
Refresh: keyVaultChildItemRefreshFunc(*kid),
Delay: 30 * time.Second,
PollInterval: 10 * time.Second,
ContinuousTargetOccurence: 10,
Timeout: d.Timeout(pluginsdk.TimeoutCreate),
}
if _, err := stateConf.WaitForStateContext(ctx); err != nil {
return fmt.Errorf("waiting for Key Vault Secret %q to become available: %s", name, err)
}
log.Printf("[DEBUG] Key %q recovered with ID: %q", name, *kid)
}
} else {
return fmt.Errorf("Creating Key: %+v", err)
}
}
// "" indicates the latest version
read, err := client.GetKey(ctx, *keyVaultBaseUri, name, "")
if err != nil {
return err
}
d.SetId(*read.Key.Kid)
return resourceKeyVaultKeyRead(d, meta)
}
func resourceKeyVaultKeyUpdate(d *pluginsdk.ResourceData, meta interface{}) error {
keyVaultsClient := meta.(*clients.Client).KeyVault
client := meta.(*clients.Client).KeyVault.ManagementClient
resourcesClient := meta.(*clients.Client).Resource
ctx, cancel := timeouts.ForUpdate(meta.(*clients.Client).StopContext, d)
defer cancel()
id, err := parse.ParseNestedItemID(d.Id())
if err != nil {
return err
}
keyVaultIdRaw, err := keyVaultsClient.KeyVaultIDFromBaseUrl(ctx, resourcesClient, id.KeyVaultBaseUrl)
if err != nil {
return fmt.Errorf("retrieving the Resource ID the Key Vault at URL %q: %s", id.KeyVaultBaseUrl, err)
}
if keyVaultIdRaw == nil {
return fmt.Errorf("Unable to determine the Resource ID for the Key Vault at URL %q", id.KeyVaultBaseUrl)
}
keyVaultId, err := parse.VaultID(*keyVaultIdRaw)
if err != nil {
return err
}
ok, err := keyVaultsClient.Exists(ctx, *keyVaultId)
if err != nil {
return fmt.Errorf("checking if key vault %q for Key %q in Vault at url %q exists: %v", *keyVaultId, id.Name, id.KeyVaultBaseUrl, err)
}
if !ok {
log.Printf("[DEBUG] Key %q Key Vault %q was not found in Key Vault at URI %q - removing from state", id.Name, *keyVaultId, id.KeyVaultBaseUrl)
d.SetId("")
return nil
}
keyOptions := expandKeyVaultKeyOptions(d)
t := d.Get("tags").(map[string]interface{})
parameters := keyvault.KeyUpdateParameters{
KeyOps: keyOptions,
KeyAttributes: &keyvault.KeyAttributes{
Enabled: utils.Bool(true),
},
Tags: tags.Expand(t),
}
if v, ok := d.GetOk("not_before_date"); ok {
notBeforeDate, _ := time.Parse(time.RFC3339, v.(string)) // validated by schema
notBeforeUnixTime := date.UnixTime(notBeforeDate)
parameters.KeyAttributes.NotBefore = ¬BeforeUnixTime
}
if v, ok := d.GetOk("expiration_date"); ok {
expirationDate, _ := time.Parse(time.RFC3339, v.(string)) // validated by schema
expirationUnixTime := date.UnixTime(expirationDate)
parameters.KeyAttributes.Expires = &expirationUnixTime
}
if _, err = client.UpdateKey(ctx, id.KeyVaultBaseUrl, id.Name, "", parameters); err != nil {
return err
}
return resourceKeyVaultKeyRead(d, meta)
}
func resourceKeyVaultKeyRead(d *pluginsdk.ResourceData, meta interface{}) error {
keyVaultsClient := meta.(*clients.Client).KeyVault
client := meta.(*clients.Client).KeyVault.ManagementClient
resourcesClient := meta.(*clients.Client).Resource
ctx, cancel := timeouts.ForRead(meta.(*clients.Client).StopContext, d)
defer cancel()
id, err := parse.ParseNestedItemID(d.Id())
if err != nil {
return err
}
keyVaultIdRaw, err := keyVaultsClient.KeyVaultIDFromBaseUrl(ctx, resourcesClient, id.KeyVaultBaseUrl)
if err != nil {
return fmt.Errorf("retrieving the Resource ID the Key Vault at URL %q: %s", id.KeyVaultBaseUrl, err)
}
if keyVaultIdRaw == nil {
log.Printf("[DEBUG] Unable to determine the Resource ID for the Key Vault at URL %q - removing from state!", id.KeyVaultBaseUrl)
d.SetId("")
return nil
}
keyVaultId, err := parse.VaultID(*keyVaultIdRaw)
if err != nil {
return err
}
ok, err := keyVaultsClient.Exists(ctx, *keyVaultId)
if err != nil {
return fmt.Errorf("checking if key vault %q for Key %q in Vault at url %q exists: %v", *keyVaultId, id.Name, id.KeyVaultBaseUrl, err)
}
if !ok {
log.Printf("[DEBUG] Key %q Key Vault %q was not found in Key Vault at URI %q - removing from state", id.Name, *keyVaultId, id.KeyVaultBaseUrl)
d.SetId("")
return nil
}
resp, err := client.GetKey(ctx, id.KeyVaultBaseUrl, id.Name, "")
if err != nil {
if utils.ResponseWasNotFound(resp.Response) {
log.Printf("[DEBUG] Key %q was not found in Key Vault at URI %q - removing from state", id.Name, id.KeyVaultBaseUrl)
d.SetId("")
return nil
}
return err
}
d.Set("name", id.Name)
if key := resp.Key; key != nil {
d.Set("key_type", string(key.Kty))
options := flattenKeyVaultKeyOptions(key.KeyOps)
if err := d.Set("key_opts", options); err != nil {
return err
}
d.Set("n", key.N)
d.Set("e", key.E)
d.Set("x", key.X)
d.Set("y", key.Y)
if key.N != nil {
nBytes, err := base64.RawURLEncoding.DecodeString(*key.N)
if err != nil {
return fmt.Errorf("Could not decode N: %+v", err)
}
d.Set("key_size", len(nBytes)*8)
}
d.Set("curve", key.Crv)
}
if attributes := resp.Attributes; attributes != nil {
if v := attributes.NotBefore; v != nil {
d.Set("not_before_date", time.Time(*v).Format(time.RFC3339))
}
if v := attributes.Expires; v != nil {
d.Set("expiration_date", time.Time(*v).Format(time.RFC3339))
}
}
// Computed
d.Set("version", id.Version)
d.Set("versionless_id", id.VersionlessID())
if key := resp.Key; key != nil {
if key.Kty == keyvault.RSA || key.Kty == keyvault.RSAHSM {
nBytes, err := base64.RawURLEncoding.DecodeString(*key.N)
if err != nil {
return fmt.Errorf("failed to decode N: %+v", err)
}
eBytes, err := base64.RawURLEncoding.DecodeString(*key.E)
if err != nil {
return fmt.Errorf("failed to decode E: %+v", err)
}
publicKey := &rsa.PublicKey{
N: big.NewInt(0).SetBytes(nBytes),
E: int(big.NewInt(0).SetBytes(eBytes).Uint64()),
}
err = readPublicKey(d, publicKey)
if err != nil {
return fmt.Errorf("failed to read public key: %+v", err)
}
} else if key.Kty == keyvault.EC || key.Kty == keyvault.ECHSM {
// do ec keys
xBytes, err := base64.RawURLEncoding.DecodeString(*key.X)
if err != nil {
return fmt.Errorf("failed to decode X: %+v", err)
}
yBytes, err := base64.RawURLEncoding.DecodeString(*key.Y)
if err != nil {
return fmt.Errorf("failed to decode Y: %+v", err)
}
publicKey := &ecdsa.PublicKey{
X: big.NewInt(0).SetBytes(xBytes),
Y: big.NewInt(0).SetBytes(yBytes),
}
switch key.Crv {
case keyvault.P256:
publicKey.Curve = elliptic.P256()
case keyvault.P384:
publicKey.Curve = elliptic.P384()
case keyvault.P521:
publicKey.Curve = elliptic.P521()
}
if publicKey.Curve != nil {
err = readPublicKey(d, publicKey)
if err != nil {
return fmt.Errorf("failed to read public key: %+v", err)
}
}
}
}
return tags.FlattenAndSet(d, resp.Tags)
}
func resourceKeyVaultKeyDelete(d *pluginsdk.ResourceData, meta interface{}) error {
keyVaultsClient := meta.(*clients.Client).KeyVault
client := meta.(*clients.Client).KeyVault.ManagementClient
resourcesClient := meta.(*clients.Client).Resource
ctx, cancel := timeouts.ForDelete(meta.(*clients.Client).StopContext, d)
defer cancel()
id, err := parse.ParseNestedItemID(d.Id())
if err != nil {
return err
}
keyVaultIdRaw, err := keyVaultsClient.KeyVaultIDFromBaseUrl(ctx, resourcesClient, id.KeyVaultBaseUrl)
if err != nil {
return fmt.Errorf("retrieving the Resource ID the Key Vault at URL %q: %s", id.KeyVaultBaseUrl, err)
}
if keyVaultIdRaw == nil {
return fmt.Errorf("Unable to determine the Resource ID for the Key Vault at URL %q", id.KeyVaultBaseUrl)
}
keyVaultId, err := parse.VaultID(*keyVaultIdRaw)
if err != nil {
return err
}
ok, err := keyVaultsClient.Exists(ctx, *keyVaultId)
if err != nil {
return fmt.Errorf("checking if key vault %q for Key %q in Vault at url %q exists: %v", *keyVaultId, id.Name, id.KeyVaultBaseUrl, err)
}
if !ok {
log.Printf("[DEBUG] Key %q Key Vault %q was not found in Key Vault at URI %q - removing from state", id.Name, *keyVaultId, id.KeyVaultBaseUrl)
d.SetId("")
return nil
}
shouldPurge := meta.(*clients.Client).Features.KeyVault.PurgeSoftDeleteOnDestroy
description := fmt.Sprintf("Key %q (Key Vault %q)", id.Name, id.KeyVaultBaseUrl)
deleter := deleteAndPurgeKey{
client: client,
keyVaultUri: id.KeyVaultBaseUrl,
name: id.Name,
}
if err := deleteAndOptionallyPurge(ctx, description, shouldPurge, deleter); err != nil {
return err
}
return nil
}
var _ deleteAndPurgeNestedItem = deleteAndPurgeKey{}
type deleteAndPurgeKey struct {
client *keyvault.BaseClient
keyVaultUri string
name string
}
func (d deleteAndPurgeKey) DeleteNestedItem(ctx context.Context) (autorest.Response, error) {
resp, err := d.client.DeleteKey(ctx, d.keyVaultUri, d.name)
return resp.Response, err
}
func (d deleteAndPurgeKey) NestedItemHasBeenDeleted(ctx context.Context) (autorest.Response, error) {
resp, err := d.client.GetKey(ctx, d.keyVaultUri, d.name, "")
return resp.Response, err
}
func (d deleteAndPurgeKey) PurgeNestedItem(ctx context.Context) (autorest.Response, error) {
return d.client.PurgeDeletedKey(ctx, d.keyVaultUri, d.name)
}
func (d deleteAndPurgeKey) NestedItemHasBeenPurged(ctx context.Context) (autorest.Response, error) {
resp, err := d.client.GetDeletedKey(ctx, d.keyVaultUri, d.name)
return resp.Response, err
}
func expandKeyVaultKeyOptions(d *pluginsdk.ResourceData) *[]keyvault.JSONWebKeyOperation {
options := d.Get("key_opts").([]interface{})
results := make([]keyvault.JSONWebKeyOperation, 0, len(options))
for _, option := range options {
results = append(results, keyvault.JSONWebKeyOperation(option.(string)))
}
return &results
}
func flattenKeyVaultKeyOptions(input *[]string) []interface{} {
results := make([]interface{}, 0, len(*input))
for _, option := range *input {
results = append(results, option)
}
return results
}
// Credit to Hashicorp modified from https://github.com/hashicorp/terraform-provider-tls/blob/v3.1.0/internal/provider/util.go#L79-L105
func readPublicKey(d *pluginsdk.ResourceData, pubKey interface{}) error {
pubKeyBytes, err := x509.MarshalPKIXPublicKey(pubKey)
if err != nil {
return fmt.Errorf("failed to marshal public key error: %s", err)
}
pubKeyPemBlock := &pem.Block{
Type: "PUBLIC KEY",
Bytes: pubKeyBytes,
}
d.Set("public_key_pem", string(pem.EncodeToMemory(pubKeyPemBlock)))
sshPubKey, err := ssh.NewPublicKey(pubKey)
if err == nil {
// Not all EC types can be SSH keys, so we'll produce this only
// if an appropriate type was selected.
sshPubKeyBytes := ssh.MarshalAuthorizedKey(sshPubKey)
d.Set("public_key_openssh", string(sshPubKeyBytes))
} else {
d.Set("public_key_openssh", "")
}
return nil
}