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storage_account_local_user_resource.go
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storage_account_local_user_resource.go
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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package storage
import (
"context"
"fmt"
"strings"
"time"
"github.com/hashicorp/go-azure-helpers/lang/pointer"
"github.com/hashicorp/go-azure-helpers/lang/response"
"github.com/hashicorp/go-azure-helpers/resourcemanager/commonids"
"github.com/hashicorp/go-azure-sdk/resource-manager/storage/2023-01-01/localusers"
"github.com/hashicorp/terraform-provider-azurerm/internal/sdk"
computevalidate "github.com/hashicorp/terraform-provider-azurerm/internal/services/compute/validate"
"github.com/hashicorp/terraform-provider-azurerm/internal/services/storage/validate"
"github.com/hashicorp/terraform-provider-azurerm/internal/tf/pluginsdk"
"github.com/hashicorp/terraform-provider-azurerm/internal/tf/suppress"
"github.com/hashicorp/terraform-provider-azurerm/internal/tf/validation"
"github.com/hashicorp/terraform-provider-azurerm/utils"
)
type LocalUserResource struct{}
var _ sdk.ResourceWithUpdate = LocalUserResource{}
type PermissionsModel struct {
Create bool `tfschema:"create"`
Delete bool `tfschema:"delete"`
List bool `tfschema:"list"`
Read bool `tfschema:"read"`
Write bool `tfschema:"write"`
}
type PermissionScopeModel struct {
Permissions []PermissionsModel `tfschema:"permissions"`
ResourceName string `tfschema:"resource_name"`
Service string `tfschema:"service"`
}
type SshAuthorizedKeyModel struct {
Description string `tfschema:"description"`
Key string `tfschema:"key"`
}
type LocalUserModel struct {
HomeDirectory string `tfschema:"home_directory"`
Name string `tfschema:"name"`
Password string `tfschema:"password"`
PermissionScope []PermissionScopeModel `tfschema:"permission_scope"`
Sid string `tfschema:"sid"`
SshAuthorizedKey []SshAuthorizedKeyModel `tfschema:"ssh_authorized_key"`
SshKeyEnabled bool `tfschema:"ssh_key_enabled"`
SshPasswordEnabled bool `tfschema:"ssh_password_enabled"`
StorageAccountId string `tfschema:"storage_account_id"`
}
func (r LocalUserResource) Arguments() map[string]*pluginsdk.Schema {
return map[string]*pluginsdk.Schema{
"name": {
Type: pluginsdk.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: validate.LocalUserName,
},
"storage_account_id": {
Type: pluginsdk.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: commonids.ValidateStorageAccountID,
},
"ssh_key_enabled": {
Type: pluginsdk.TypeBool,
Optional: true,
Default: false,
AtLeastOneOf: []string{"ssh_key_enabled", "ssh_password_enabled"},
},
"ssh_password_enabled": {
Type: pluginsdk.TypeBool,
Optional: true,
Default: false,
AtLeastOneOf: []string{"ssh_key_enabled", "ssh_password_enabled"},
},
"home_directory": {
Type: pluginsdk.TypeString,
Optional: true,
},
"ssh_authorized_key": {
Type: pluginsdk.TypeList,
Optional: true,
RequiredWith: []string{"ssh_key_enabled"},
Elem: &pluginsdk.Resource{
Schema: map[string]*pluginsdk.Schema{
"key": {
Type: pluginsdk.TypeString,
Required: true,
ValidateFunc: computevalidate.SSHKey,
DiffSuppressFunc: suppress.SSHKey,
},
"description": {
Type: pluginsdk.TypeString,
Optional: true,
},
},
},
},
"permission_scope": {
Type: pluginsdk.TypeList,
Optional: true,
Elem: &pluginsdk.Resource{
Schema: map[string]*pluginsdk.Schema{
"permissions": {
Type: pluginsdk.TypeList,
Required: true,
MaxItems: 1,
Elem: &pluginsdk.Resource{
Schema: map[string]*pluginsdk.Schema{
"read": {
Type: pluginsdk.TypeBool,
Optional: true,
Default: false,
},
"write": {
Type: pluginsdk.TypeBool,
Optional: true,
Default: false,
},
"delete": {
Type: pluginsdk.TypeBool,
Optional: true,
Default: false,
},
"list": {
Type: pluginsdk.TypeBool,
Optional: true,
Default: false,
},
"create": {
Type: pluginsdk.TypeBool,
Optional: true,
Default: false,
},
},
},
},
"service": {
Type: pluginsdk.TypeString,
Required: true,
ValidateFunc: validation.StringInSlice(
// Replace the string literal with enum once https://github.com/Azure/azure-rest-api-specs/pull/21845 is merged
[]string{"blob", "file"},
false,
),
},
"resource_name": {
Type: pluginsdk.TypeString,
Required: true,
ValidateFunc: validation.StringIsNotEmpty,
},
},
},
},
}
}
func (r LocalUserResource) Attributes() map[string]*pluginsdk.Schema {
return map[string]*pluginsdk.Schema{
"sid": {
Type: pluginsdk.TypeString,
Sensitive: true,
Computed: true,
},
"password": {
Type: pluginsdk.TypeString,
Sensitive: true,
Computed: true,
},
}
}
func (r LocalUserResource) ResourceType() string {
return "azurerm_storage_account_local_user"
}
func (r LocalUserResource) ModelObject() interface{} {
return &LocalUserModel{}
}
func (r LocalUserResource) IDValidationFunc() pluginsdk.SchemaValidateFunc {
return localusers.ValidateLocalUserID
}
func (r LocalUserResource) CustomizeDiff() sdk.ResourceFunc {
return sdk.ResourceFunc{
Func: func(ctx context.Context, metadata sdk.ResourceMetaData) error {
diff := metadata.ResourceDiff
if diff.HasChange("ssh_password_enabled") {
if err := diff.SetNewComputed("password"); err != nil {
return err
}
}
return nil
},
Timeout: 5 * time.Minute,
}
}
func (r LocalUserResource) Create() sdk.ResourceFunc {
return sdk.ResourceFunc{
Timeout: 30 * time.Minute,
Func: func(ctx context.Context, metadata sdk.ResourceMetaData) error {
client := metadata.Client.Storage.ResourceManager.LocalUsers
var plan LocalUserModel
if err := metadata.Decode(&plan); err != nil {
return fmt.Errorf("decoding %+v", err)
}
// Sanity checks on input
if plan.SshKeyEnabled != (len(plan.SshAuthorizedKey) != 0) {
if plan.SshKeyEnabled {
return fmt.Errorf("`ssh_authorized_key` should be specified when `ssh_key_enabled` is enabled")
} else {
return fmt.Errorf("`ssh_authorized_key` should not be specified when `ssh_key_enabled` is disabled")
}
}
accountId, err := commonids.ParseStorageAccountID(plan.StorageAccountId)
if err != nil {
return err
}
id := localusers.NewLocalUserID(accountId.SubscriptionId, accountId.ResourceGroupName, accountId.StorageAccountName, plan.Name)
existing, err := client.Get(ctx, id)
if err != nil {
if !response.WasNotFound(existing.HttpResponse) {
return fmt.Errorf("checking for presence of existing %s: %+v", id, err)
}
}
if !response.WasNotFound(existing.HttpResponse) {
return metadata.ResourceRequiresImport(r.ResourceType(), id)
}
params := localusers.LocalUser{
Properties: &localusers.LocalUserProperties{
PermissionScopes: r.expandPermissionScopes(plan.PermissionScope),
SshAuthorizedKeys: r.expandSSHAuthorizedKeys(plan.SshAuthorizedKey),
HasSshKey: pointer.To(plan.SshKeyEnabled),
HasSshPassword: pointer.To(plan.SshPasswordEnabled),
},
}
if plan.HomeDirectory != "" {
params.Properties.HomeDirectory = utils.String(plan.HomeDirectory)
}
if _, err = client.CreateOrUpdate(ctx, id, params); err != nil {
return fmt.Errorf("creating %s: %+v", id, err)
}
state := plan
if plan.SshPasswordEnabled {
resp, err := client.RegeneratePassword(ctx, id)
if err != nil {
return fmt.Errorf("generating password for %s: %v", id.ID(), err)
}
if resp.Model == nil {
return fmt.Errorf("unexpected nil of the generate password response model for %s", id.ID())
}
if v := resp.Model.SshPassword; v != nil {
state.Password = *v
}
if err := metadata.Encode(&state); err != nil {
return err
}
}
metadata.SetID(id)
return nil
},
}
}
func (r LocalUserResource) Read() sdk.ResourceFunc {
return sdk.ResourceFunc{
Timeout: 5 * time.Minute,
Func: func(ctx context.Context, metadata sdk.ResourceMetaData) error {
client := metadata.Client.Storage.ResourceManager.LocalUsers
id, err := localusers.ParseLocalUserID(metadata.ResourceData.Id())
if err != nil {
return err
}
var state LocalUserModel
if err := metadata.Decode(&state); err != nil {
return err
}
existing, err := client.Get(ctx, *id)
if err != nil {
if response.WasNotFound(existing.HttpResponse) {
return metadata.MarkAsGone(id)
}
return fmt.Errorf("retrieving %s: %+v", id, err)
}
model := LocalUserModel{
Name: id.LocalUserName,
StorageAccountId: commonids.NewStorageAccountID(id.SubscriptionId, id.ResourceGroupName, id.StorageAccountName).ID(),
// Password is only accessible during creation
Password: state.Password,
// SshAuthorizedKey is only accessible during creation, whilst this should be returned as it is not a secret.
// Opened API issue: https://github.com/Azure/azure-rest-api-specs/issues/21866
SshAuthorizedKey: state.SshAuthorizedKey,
}
if existing.Model != nil && existing.Model.Properties != nil {
props := existing.Model.Properties
model.PermissionScope = r.flattenPermissionScopes(props.PermissionScopes)
if props.HomeDirectory != nil {
model.HomeDirectory = *props.HomeDirectory
}
if props.HasSshKey != nil {
model.SshKeyEnabled = *props.HasSshKey
}
if props.HasSshPassword != nil {
model.SshPasswordEnabled = *props.HasSshPassword
}
if props.Sid != nil {
model.Sid = *props.Sid
}
}
return metadata.Encode(&model)
},
}
}
func (r LocalUserResource) Update() sdk.ResourceFunc {
return sdk.ResourceFunc{
Timeout: 30 * time.Minute,
Func: func(ctx context.Context, metadata sdk.ResourceMetaData) error {
id, err := localusers.ParseLocalUserID(metadata.ResourceData.Id())
if err != nil {
return err
}
var plan LocalUserModel
if err := metadata.Decode(&plan); err != nil {
return err
}
client := metadata.Client.Storage.ResourceManager.LocalUsers
params, err := client.Get(ctx, *id)
if err != nil {
return fmt.Errorf("retrieving %s: %+v", id, err)
}
model := params.Model
if model == nil {
return fmt.Errorf("unexpected nil model for %s", id)
}
props := model.Properties
if props == nil {
return fmt.Errorf("unexpected nil properties for %s", id)
}
if metadata.ResourceData.HasChange("home_directory") {
if plan.HomeDirectory != "" {
props.HomeDirectory = &plan.HomeDirectory
} else {
props.HomeDirectory = nil
}
}
if metadata.ResourceData.HasChange("permission_scope") {
props.PermissionScopes = r.expandPermissionScopes(plan.PermissionScope)
}
if metadata.ResourceData.HasChange("ssh_key_enabled") {
props.HasSshKey = &plan.SshKeyEnabled
}
if metadata.ResourceData.HasChange("ssh_authorized_key") {
props.SshAuthorizedKeys = r.expandSSHAuthorizedKeys(plan.SshAuthorizedKey)
}
if metadata.ResourceData.HasChange("ssh_password_enabled") {
props.HasSshPassword = &plan.SshPasswordEnabled
_, isEnabled := metadata.ResourceData.GetChange("ssh_password_enabled")
state := plan
if isEnabled.(bool) {
// If this update is to change the `ssh_password_enabled` from false to true. We'll need to regenerate the password.
// The previously generated password will be useless, that can't be used to connect (sftp returns permission denied).
// Also, after `ssh_key_enabled` being set to back true, but without calling the RegeneratePassword(), then if you
// call GET on the local user again, it returns the `ssh_key_enabled` as false, which indicates that we shall always
// generate a password when enable the `ssh_key_enabled`.
resp, err := client.RegeneratePassword(ctx, *id)
if err != nil {
return fmt.Errorf("generating password for %s: %v", id.ID(), err)
}
if resp.Model == nil {
return fmt.Errorf("unexpected nil of the generate password response model for %s", id.ID())
}
if v := resp.Model.SshPassword; v != nil {
state.Password = *v
}
} else {
state.Password = ""
}
if err := metadata.Encode(&state); err != nil {
return err
}
}
if _, err := client.CreateOrUpdate(ctx, *id, localusers.LocalUser{Properties: props}); err != nil {
return fmt.Errorf("updating %s: %+v", id, err)
}
return nil
},
}
}
func (r LocalUserResource) Delete() sdk.ResourceFunc {
return sdk.ResourceFunc{
Timeout: 30 * time.Minute,
Func: func(ctx context.Context, metadata sdk.ResourceMetaData) error {
client := metadata.Client.Storage.ResourceManager.LocalUsers
id, err := localusers.ParseLocalUserID(metadata.ResourceData.Id())
if err != nil {
return err
}
if _, err := client.Delete(ctx, *id); err != nil {
return fmt.Errorf("deleting %s: %+v", id, err)
}
return nil
},
}
}
func (r LocalUserResource) expandPermissionScopes(input []PermissionScopeModel) *[]localusers.PermissionScope {
if len(input) == 0 {
return nil
}
var output []localusers.PermissionScope
for _, v := range input {
// The length constraint is guaranteed by schema
permissions := v.Permissions[0]
var permissionStr string
if permissions.Read {
permissionStr += "r"
}
if permissions.Write {
permissionStr += "w"
}
if permissions.Delete {
permissionStr += "d"
}
if permissions.List {
permissionStr += "l"
}
if permissions.Create {
permissionStr += "c"
}
output = append(output, localusers.PermissionScope{
Permissions: permissionStr,
Service: v.Service,
ResourceName: v.ResourceName,
})
}
return &output
}
func (r LocalUserResource) flattenPermissionScopes(input *[]localusers.PermissionScope) []PermissionScopeModel {
if input == nil {
return nil
}
var output []PermissionScopeModel
for _, v := range *input {
permissions := PermissionsModel{}
// The Storage API's have a history of being case-insensitive, so we case-insensitively check the permission here.
np := strings.ToLower(v.Permissions)
if strings.Contains(np, "r") {
permissions.Read = true
}
if strings.Contains(np, "w") {
permissions.Write = true
}
if strings.Contains(np, "d") {
permissions.Delete = true
}
if strings.Contains(np, "l") {
permissions.List = true
}
if strings.Contains(np, "c") {
permissions.Create = true
}
output = append(output, PermissionScopeModel{
Permissions: []PermissionsModel{permissions},
Service: v.Service,
ResourceName: v.ResourceName,
})
}
return output
}
func (r LocalUserResource) expandSSHAuthorizedKeys(input []SshAuthorizedKeyModel) *[]localusers.SshPublicKey {
if len(input) == 0 {
return nil
}
var output []localusers.SshPublicKey
for _, v := range input {
output = append(output, localusers.SshPublicKey{
Description: pointer.To(v.Description),
Key: pointer.To(v.Key),
})
}
return &output
}