Add support for `AutoMinorVersionUpgrade` to aws_elasticache_replication_group resource. (#9657)

This commit adds an ability to modify the `AutoMinorVersionUpgrade` property of the
Replication Group (which is enabled by default) accordingly.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>

builtin/providers/aws/resource_aws_elasticache_replication_group.go

@@ -31,6 +31,12 @@ func resourceAwsElasticacheReplicationGroup() *schema.Resource {
 		Default:  false,
 	}
 
+	resourceSchema["auto_minor_version_upgrade"] = &schema.Schema{
+		Type:     schema.TypeBool,
+		Optional: true,
+		Default:  true,
+	}
+
 	resourceSchema["replication_group_description"] = &schema.Schema{
 		Type:     schema.TypeString,
 		Required: true,
@@ -78,6 +84,7 @@ func resourceAwsElasticacheReplicationGroupCreate(d *schema.ResourceData, meta i
 		ReplicationGroupId:          aws.String(d.Get("replication_group_id").(string)),
 		ReplicationGroupDescription: aws.String(d.Get("replication_group_description").(string)),
 		AutomaticFailoverEnabled:    aws.Bool(d.Get("automatic_failover_enabled").(bool)),
+		AutoMinorVersionUpgrade:     aws.Bool(d.Get("auto_minor_version_upgrade").(bool)),
 		CacheNodeType:               aws.String(d.Get("node_type").(string)),
 		Engine:                      aws.String(d.Get("engine").(string)),
 		Port:                        aws.Int64(int64(d.Get("port").(int))),
@@ -237,12 +244,15 @@ func resourceAwsElasticacheReplicationGroupRead(d *schema.ResourceData, meta int
 		d.Set("subnet_group_name", c.CacheSubnetGroupName)
 		d.Set("security_group_names", flattenElastiCacheSecurityGroupNames(c.CacheSecurityGroups))
 		d.Set("security_group_ids", flattenElastiCacheSecurityGroupIds(c.SecurityGroups))
+
 		if c.CacheParameterGroup != nil {
 			d.Set("parameter_group_name", c.CacheParameterGroup.CacheParameterGroupName)
 		}
+
 		d.Set("maintenance_window", c.PreferredMaintenanceWindow)
 		d.Set("snapshot_window", rgp.SnapshotWindow)
 		d.Set("snapshot_retention_limit", rgp.SnapshotRetentionLimit)
+
 		if rgp.ConfigurationEndpoint != nil {
 			d.Set("port", rgp.ConfigurationEndpoint.Port)
 			d.Set("configuration_endpoint_address", rgp.ConfigurationEndpoint.Address)
@@ -250,6 +260,8 @@ func resourceAwsElasticacheReplicationGroupRead(d *schema.ResourceData, meta int
 			d.Set("port", rgp.NodeGroups[0].PrimaryEndpoint.Port)
 			d.Set("primary_endpoint_address", rgp.NodeGroups[0].PrimaryEndpoint.Address)
 		}
+
+		d.Set("auto_minor_version_upgrade", c.AutoMinorVersionUpgrade)
 	}
 
 	return nil
@@ -274,6 +286,11 @@ func resourceAwsElasticacheReplicationGroupUpdate(d *schema.ResourceData, meta i
 		requestUpdate = true
 	}
 
+	if d.HasChange("auto_minor_version_upgrade") {
+		params.AutoMinorVersionUpgrade = aws.Bool(d.Get("auto_minor_version_upgrade").(bool))
+		requestUpdate = true
+	}
+
 	if d.HasChange("security_group_ids") {
 		if attr := d.Get("security_group_ids").(*schema.Set); attr.Len() > 0 {
 			params.SecurityGroupIds = expandStringList(attr.List())

builtin/providers/aws/resource_aws_elasticache_replication_group_test.go

@@ -26,6 +26,8 @@ func TestAccAWSElasticacheReplicationGroup_basic(t *testing.T) {
 					testAccCheckAWSElasticacheReplicationGroupExists("aws_elasticache_replication_group.bar", &rg),
 					resource.TestCheckResourceAttr(
 						"aws_elasticache_replication_group.bar", "number_cache_clusters", "2"),
+					resource.TestCheckResourceAttr(
+						"aws_elasticache_replication_group.bar", "auto_minor_version_upgrade", "false"),
 				),
 			},
 		},
@@ -48,6 +50,8 @@ func TestAccAWSElasticacheReplicationGroup_updateDescription(t *testing.T) {
 						"aws_elasticache_replication_group.bar", "number_cache_clusters", "2"),
 					resource.TestCheckResourceAttr(
 						"aws_elasticache_replication_group.bar", "replication_group_description", "test description"),
+					resource.TestCheckResourceAttr(
+						"aws_elasticache_replication_group.bar", "auto_minor_version_upgrade", "false"),
 				),
 			},
 
@@ -59,6 +63,8 @@ func TestAccAWSElasticacheReplicationGroup_updateDescription(t *testing.T) {
 						"aws_elasticache_replication_group.bar", "number_cache_clusters", "2"),
 					resource.TestCheckResourceAttr(
 						"aws_elasticache_replication_group.bar", "replication_group_description", "updated description"),
+					resource.TestCheckResourceAttr(
+						"aws_elasticache_replication_group.bar", "auto_minor_version_upgrade", "true"),
 				),
 			},
 		},
@@ -141,6 +147,8 @@ func TestAccAWSElasticacheReplicationGroup_vpc(t *testing.T) {
 					testAccCheckAWSElasticacheReplicationGroupExists("aws_elasticache_replication_group.bar", &rg),
 					resource.TestCheckResourceAttr(
 						"aws_elasticache_replication_group.bar", "number_cache_clusters", "1"),
+					resource.TestCheckResourceAttr(
+						"aws_elasticache_replication_group.bar", "auto_minor_version_upgrade", "false"),
 				),
 			},
 		},
@@ -353,6 +361,7 @@ resource "aws_elasticache_replication_group" "bar" {
     parameter_group_name = "default.redis3.2"
     security_group_names = ["${aws_elasticache_security_group.bar.name}"]
     apply_immediately = true
+    auto_minor_version_upgrade = false
 }`, rName, rName, rName)
 }
 
@@ -431,6 +440,7 @@ resource "aws_elasticache_replication_group" "bar" {
     parameter_group_name = "default.redis3.2"
     security_group_names = ["${aws_elasticache_security_group.bar.name}"]
     apply_immediately = true
+    auto_minor_version_upgrade = true
 }`, rName, rName, rName)
 }
 
@@ -513,6 +523,7 @@ resource "aws_elasticache_replication_group" "bar" {
     security_group_ids = ["${aws_security_group.bar.id}"]
     parameter_group_name = "default.redis3.2"
     availability_zones = ["us-west-2a"]
+    auto_minor_version_upgrade = false
 }
 
 `, acctest.RandInt(), acctest.RandInt(), acctest.RandString(10))

website/source/docs/providers/aws/r/elasticache_replication_group.html.markdown

@@ -37,6 +37,7 @@ The following arguments are supported:
  If Multi-AZ is enabled , the value of this parameter must be at least 2. Changing this number will force a new resource
 * `node_type` - (Required) The compute and memory capacity of the nodes in the node group.
 * `automatic_failover_enabled` - (Optional) Specifies whether a read-only replica will be automatically promoted to read/write primary if the existing primary fails. Defaults to `false`.
+* `auto_minor_version_upgrade` - (Optional) Specifies whether a minor engine upgrades will be applied automatically to the underlying Cache Cluster instances during the maintenance window. Defaults to `true`.
 * `availability_zones` - (Optional) A list of EC2 availability zones in which the replication group's cache clusters will be created. The order of the availability zones in the list is not important.
 * `engine_version` - (Optional) The version number of the cache engine to be used for the cache clusters in this replication group.
 * `parameter_group_name` - (Optional) The name of the parameter group to associate with this replication group. If this argument is omitted, the default cache parameter group for the specified engine is used.