Merge pull request #32176 from sasidhar-aws/f-aws-sfn-alias

[New Resource]: step function alias and versioning

.changelog/32176.txt

@@ -0,0 +1,15 @@
+```release-note:new-resource
+aws_sfn_alias
+```
+
+```release-note:new-data-source
+aws_sfn_alias
+```
+
+```release-note:new-data-source
+aws_sfn_state_machine_versions
+```
+
+```release-note:enhancement
+resource/aws_sfn_state_machine: Add `description`, `publish`, `revision_id`, `state_machine_version_arn` and `version_description` attributes
+```

internal/service/sfn/alias.go

@@ -0,0 +1,280 @@
+package sfn
+
+import (
+	"context"
+	"errors"
+	"log"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/sfn"
+	"github.com/hashicorp/aws-sdk-go-base/v2/awsv1shim/v2/tfawserr"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/retry"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
+	"github.com/hashicorp/terraform-provider-aws/internal/conns"
+	"github.com/hashicorp/terraform-provider-aws/internal/create"
+	"github.com/hashicorp/terraform-provider-aws/internal/tfresource"
+	"github.com/hashicorp/terraform-provider-aws/names"
+)
+
+// @SDKResource("aws_sfn_alias")
+func ResourceAlias() *schema.Resource {
+	return &schema.Resource{
+		CreateWithoutTimeout: resourceAliasCreate,
+		ReadWithoutTimeout:   resourceAliasRead,
+		UpdateWithoutTimeout: resourceAliasUpdate,
+		DeleteWithoutTimeout: resourceAliasDelete,
+
+		Importer: &schema.ResourceImporter{
+			StateContext: schema.ImportStatePassthroughContext,
+		},
+
+		Timeouts: &schema.ResourceTimeout{
+			Create: schema.DefaultTimeout(30 * time.Minute),
+			Update: schema.DefaultTimeout(30 * time.Minute),
+			Delete: schema.DefaultTimeout(30 * time.Minute),
+		},
+		Schema: map[string]*schema.Schema{
+			"arn": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"creation_date": {
+				Type:     schema.TypeString,
+				Computed: true,
+			},
+			"description": {
+				Type:     schema.TypeString,
+				Optional: true,
+			},
+			"name": {
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+			"routing_configuration": {
+				Type:     schema.TypeList,
+				Required: true,
+				MinItems: 1,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"state_machine_version_arn": {
+							Type:     schema.TypeString,
+							Required: true,
+						},
+						"weight": {
+							Type:     schema.TypeInt,
+							Required: true,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+const (
+	ResNameAlias = "Alias"
+)
+
+func resourceAliasCreate(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	conn := meta.(*conns.AWSClient).SFNConn(ctx)
+
+	in := &sfn.CreateStateMachineAliasInput{
+		Name:        aws.String(d.Get("name").(string)),
+		Description: aws.String(d.Get("description").(string)),
+	}
+
+	if v, ok := d.GetOk("routing_configuration"); ok && len(v.([]interface{})) > 0 {
+		in.RoutingConfiguration = expandAliasRoutingConfiguration(v.([]interface{}))
+	}
+
+	out, err := conn.CreateStateMachineAliasWithContext(ctx, in)
+	if err != nil {
+		return create.DiagError(names.SFN, create.ErrActionCreating, ResNameAlias, d.Get("name").(string), err)
+	}
+
+	if out == nil || out.StateMachineAliasArn == nil {
+		return create.DiagError(names.SFN, create.ErrActionCreating, ResNameAlias, d.Get("name").(string), errors.New("empty output"))
+	}
+
+	d.SetId(aws.StringValue(out.StateMachineAliasArn))
+
+	return resourceAliasRead(ctx, d, meta)
+}
+
+func resourceAliasRead(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	conn := meta.(*conns.AWSClient).SFNConn(ctx)
+
+	out, err := FindAliasByARN(ctx, conn, d.Id())
+
+	if !d.IsNewResource() && tfresource.NotFound(err) {
+		log.Printf("[WARN] SFN Alias (%s) not found, removing from state", d.Id())
+		d.SetId("")
+		return nil
+	}
+
+	if err != nil {
+		return create.DiagError(names.SFN, create.ErrActionReading, ResNameAlias, d.Id(), err)
+	}
+
+	d.Set("arn", out.StateMachineAliasArn)
+	d.Set("name", out.Name)
+	d.Set("description", out.Description)
+	d.Set("creation_date", aws.TimeValue(out.CreationDate).Format(time.RFC3339))
+	d.SetId(aws.StringValue(out.StateMachineAliasArn))
+
+	if err := d.Set("routing_configuration", flattenAliasRoutingConfiguration(out.RoutingConfiguration)); err != nil {
+		return create.DiagError(names.SFN, create.ErrActionSetting, ResNameAlias, d.Id(), err)
+	}
+	return nil
+}
+
+func resourceAliasUpdate(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	conn := meta.(*conns.AWSClient).SFNConn(ctx)
+
+	update := false
+
+	in := &sfn.UpdateStateMachineAliasInput{
+		StateMachineAliasArn: aws.String(d.Id()),
+	}
+
+	if d.HasChanges("description") {
+		in.Description = aws.String(d.Get("description").(string))
+		update = true
+	}
+
+	if d.HasChange("routing_configuration") {
+		in.RoutingConfiguration = expandAliasRoutingConfiguration(d.Get("routing_configuration").([]interface{}))
+		update = true
+	}
+
+	if !update {
+		return nil
+	}
+
+	log.Printf("[DEBUG] Updating SFN Alias (%s): %#v", d.Id(), in)
+	_, err := conn.UpdateStateMachineAliasWithContext(ctx, in)
+	if err != nil {
+		return create.DiagError(names.SFN, create.ErrActionUpdating, ResNameAlias, d.Id(), err)
+	}
+
+	return resourceAliasRead(ctx, d, meta)
+}
+
+func resourceAliasDelete(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
+	conn := meta.(*conns.AWSClient).SFNConn(ctx)
+	log.Printf("[INFO] Deleting SFN Alias %s", d.Id())
+
+	_, err := conn.DeleteStateMachineAliasWithContext(ctx, &sfn.DeleteStateMachineAliasInput{
+		StateMachineAliasArn: aws.String(d.Id()),
+	})
+
+	if err != nil {
+		return create.DiagError(names.SFN, create.ErrActionDeleting, ResNameAlias, d.Id(), err)
+	}
+
+	return nil
+}
+
+func FindAliasByARN(ctx context.Context, conn *sfn.SFN, arn string) (*sfn.DescribeStateMachineAliasOutput, error) {
+	in := &sfn.DescribeStateMachineAliasInput{
+		StateMachineAliasArn: aws.String(arn),
+	}
+	out, err := conn.DescribeStateMachineAliasWithContext(ctx, in)
+	if tfawserr.ErrCodeEquals(err, sfn.ErrCodeResourceNotFound) {
+		return nil, &retry.NotFoundError{
+			LastError:   err,
+			LastRequest: in,
+		}
+	}
+
+	if err != nil {
+		return nil, err
+	}
+
+	if out == nil {
+		return nil, tfresource.NewEmptyResultError(in)
+	}
+
+	return out, nil
+}
+
+func flattenAliasRoutingConfigurationItem(apiObject *sfn.RoutingConfigurationListItem) map[string]interface{} {
+	if apiObject == nil {
+		return nil
+	}
+
+	tfMap := map[string]interface{}{}
+
+	if v := apiObject.StateMachineVersionArn; v != nil {
+		tfMap["state_machine_version_arn"] = aws.StringValue(v)
+	}
+
+	if v := apiObject.Weight; v != nil {
+		tfMap["weight"] = aws.Int64Value(v)
+	}
+
+	return tfMap
+}
+
+func flattenAliasRoutingConfiguration(apiObjects []*sfn.RoutingConfigurationListItem) []interface{} {
+	if len(apiObjects) == 0 {
+		return nil
+	}
+
+	var tfList []interface{}
+
+	for _, apiObject := range apiObjects {
+		if apiObject == nil {
+			continue
+		}
+
+		tfList = append(tfList, flattenAliasRoutingConfigurationItem(apiObject))
+	}
+
+	return tfList
+}
+
+func expandAliasRoutingConfiguration(tfList []interface{}) []*sfn.RoutingConfigurationListItem {
+	if len(tfList) == 0 {
+		return nil
+	}
+	var configurationListItems []*sfn.RoutingConfigurationListItem
+
+	for _, tfMapRaw := range tfList {
+		tfMap, ok := tfMapRaw.(map[string]interface{})
+
+		if !ok {
+			continue
+		}
+
+		configurationListItem := expandAliasRoutingConfigurationItem(tfMap)
+
+		if configurationListItem == nil {
+			continue
+		}
+
+		configurationListItems = append(configurationListItems, configurationListItem)
+	}
+
+	return configurationListItems
+}
+
+func expandAliasRoutingConfigurationItem(tfMap map[string]interface{}) *sfn.RoutingConfigurationListItem {
+	if tfMap == nil {
+		return nil
+	}
+
+	apiObject := &sfn.RoutingConfigurationListItem{}
+	if v, ok := tfMap["state_machine_version_arn"].(string); ok && v != "" {
+		apiObject.StateMachineVersionArn = aws.String(v)
+	}
+
+	if v, ok := tfMap["weight"].(int); ok && v != 0 {
+		apiObject.Weight = aws.Int64(int64(v))
+	}
+
+	return apiObject
+}