Added support for the deployment configuration settings to the ecs service resource.

builtin/providers/aws/resource_aws_ecs_service.go

@@ -55,6 +55,18 @@ func resourceAwsEcsService() *schema.Resource {
 				Optional: true,
 			},
 
+			"deployment_maximum_percent": &schema.Schema{
+				Type:     schema.TypeInt,
+				Optional: true,
+				Default:  200,
+			},
+
+			"deployment_minimum_healthy_percent": &schema.Schema{
+				Type:     schema.TypeInt,
+				Optional: true,
+				Default:  100,
+			},
+
 			"load_balancer": &schema.Schema{
 				Type:     schema.TypeSet,
 				Optional: true,
@@ -94,6 +106,10 @@ func resourceAwsEcsServiceCreate(d *schema.ResourceData, meta interface{}) error
 		TaskDefinition: aws.String(d.Get("task_definition").(string)),
 		DesiredCount:   aws.Int64(int64(d.Get("desired_count").(int))),
 		ClientToken:    aws.String(resource.UniqueId()),
+		DeploymentConfiguration: &ecs.DeploymentConfiguration{
+			MaximumPercent:        aws.Int64(int64(d.Get("deployment_maximum_percent").(int))),
+			MinimumHealthyPercent: aws.Int64(int64(d.Get("deployment_minimum_healthy_percent").(int))),
+		},
 	}
 
 	if v, ok := d.GetOk("cluster"); ok {
@@ -208,6 +224,11 @@ func resourceAwsEcsServiceRead(d *schema.ResourceData, meta interface{}) error {
 		}
 	}
 
+	if service.DeploymentConfiguration != nil {
+		d.Set("deployment_maximum_percent", *service.DeploymentConfiguration.MaximumPercent)
+		d.Set("deployment_minimum_healthy_percent", *service.DeploymentConfiguration.MinimumHealthyPercent)
+	}
+
 	if service.LoadBalancers != nil {
 		d.Set("load_balancers", flattenEcsLoadBalancers(service.LoadBalancers))
 	}
@@ -233,6 +254,13 @@ func resourceAwsEcsServiceUpdate(d *schema.ResourceData, meta interface{}) error
 		input.TaskDefinition = aws.String(n.(string))
 	}
 
+	if d.HasChange("deployment_maximum_percent") || d.HasChange("deployment_minimum_healthy_percent") {
+		input.DeploymentConfiguration = &ecs.DeploymentConfiguration{
+			MaximumPercent:        aws.Int64(int64(d.Get("deployment_maximum_percent").(int))),
+			MinimumHealthyPercent: aws.Int64(int64(d.Get("deployment_minimum_healthy_percent").(int))),
+		}
+	}
+
 	out, err := conn.UpdateService(&input)
 	if err != nil {
 		return err

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

@@ -10,7 +10,7 @@ description: |-
 
 -> **Note:** To prevent race condition during service deletion, make sure to set `depends_on` to related `aws_iam_role_policy`, otherwise policy may be destroyed too soon and ECS service will then stuck in `DRAINING` state.
 
-Provides an ECS service - effectively a task that is expected to run until an error occures or user terminates it (typically a webserver or a database). 
+Provides an ECS service - effectively a task that is expected to run until an error occures or user terminates it (typically a webserver or a database).
 
 See [ECS Services section in AWS developer guide](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs_services.html).
 
@@ -42,6 +42,8 @@ The following arguments are supported:
 * `desired_count` - (Required) The number of instances of the task definition to place and keep running
 * `cluster` - (Optional) ARN of an ECS cluster
 * `iam_role` - (Optional) IAM role that allows your Amazon ECS container agent to make calls to your load balancer on your behalf. This parameter is only required if you are using a load balancer with your service.
+* `deployment_maximum_percent` - (Optional) The upper limit (as a percentage of the service's desiredCount) of the number of running tasks that can be running in a service during a deployment.
+* `deployment_minimum_healthy_percent` - (Optional) The lower limit (as a percentage of the service's desiredCount) of the number of running tasks that must remain running and healthy in a service during a deployment.
 * `load_balancer` - (Optional) A load balancer block. Load balancers documented below.
 
 Load balancers support the following: