Added option to attach an ELB to Opsworks layer

builtin/providers/aws/opsworks_layers.go

@@ -67,6 +67,11 @@ func (lt *opsworksLayerType) SchemaResource() *schema.Resource {
 			Optional: true,
 		},
 
+                "elastic_load_balancer": &schema.Schema{
+                        Type:     schema.TypeString,
+                        Optional: true,
+                },
+
 		"custom_setup_recipes": &schema.Schema{
 			Type:     schema.TypeList,
 			Optional: true,
@@ -288,6 +293,29 @@ func (lt *opsworksLayerType) Read(d *schema.ResourceData, client *opsworks.OpsWo
 	lt.SetCustomRecipes(d, layer.CustomRecipes)
 	lt.SetVolumeConfigurations(d, layer.VolumeConfigurations)
 
+        /* get ELB */
+        ebsRequest := &opsworks.DescribeElasticLoadBalancersInput{
+                LayerIds: []*string{
+                        aws.String(d.Id()),
+                },
+        }
+        loadBalancers, err := client.DescribeElasticLoadBalancers(ebsRequest)
+
+        fmt.Println(loadBalancers)
+
+        if err != nil {
+                return err
+        }
+
+        if loadBalancers.ElasticLoadBalancers == nil || len(loadBalancers.ElasticLoadBalancers) == 0 {
+                d.Set("elastic_load_balancer", "")
+        } else {
+                loadBalancer := loadBalancers.ElasticLoadBalancers[0]
+                if loadBalancer != nil {
+                        d.Set("elastic_load_balancer", loadBalancer.ElasticLoadBalancerName)
+                }
+        }
+
 	return nil
 }
 
@@ -328,6 +356,15 @@ func (lt *opsworksLayerType) Create(d *schema.ResourceData, client *opsworks.Ops
 	d.SetId(layerId)
 	d.Set("id", layerId)
 
+        loadBalancer := aws.String(d.Get("elastic_load_balancer").(string))
+        if loadBalancer != nil && *loadBalancer != "" {
+                log.Printf("[DEBUG] Attaching load balancer: %s", *loadBalancer)
+                client.AttachElasticLoadBalancer(&opsworks.AttachElasticLoadBalancerInput{
+                        ElasticLoadBalancerName: loadBalancer,
+                        LayerId:                 &layerId,
+                })
+        }
+
 	return lt.Read(d, client)
 }
 
@@ -358,6 +395,32 @@ func (lt *opsworksLayerType) Update(d *schema.ResourceData, client *opsworks.Ops
 
 	log.Printf("[DEBUG] Updating OpsWorks layer: %s", d.Id())
 
+        if d.HasChange("elastic_load_balancer") {
+                lbo, lbn := d.GetChange("elastic_load_balancer")
+
+                loadBalancerOld := aws.String(lbo.(string))
+                loadBalancerNew := aws.String(lbn.(string))
+
+                if loadBalancerOld != nil && *loadBalancerOld != "" {
+                        log.Printf("[DEBUG] Dettaching load balancer: %s", *loadBalancerOld)
+                        _, err := client.DetachElasticLoadBalancer(&opsworks.DetachElasticLoadBalancerInput{
+                                ElasticLoadBalancerName: loadBalancerOld,
+                                LayerId:                 aws.String(d.Id()),
+                        })
+                        if err != nil {
+                                return err
+                        }
+                }
+
+                if loadBalancerNew != nil && *loadBalancerNew != "" {
+                        log.Printf("[DEBUG] Attaching load balancer: %s", *loadBalancerNew)
+                        client.AttachElasticLoadBalancer(&opsworks.AttachElasticLoadBalancerInput{
+                                ElasticLoadBalancerName: loadBalancerNew,
+                                LayerId:                 aws.String(d.Id()),
+                        })
+                }
+        }
+
 	_, err := client.UpdateLayer(req)
 	if err != nil {
 		return err

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

@@ -34,6 +34,7 @@ The following arguments are supported:
 * `auto_healing` - (Optional) Whether to enable auto-healing for the layer.
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `system_packages` - (Optional) Names of a set of system packages to install on the layer's instances.
 * `use_ebs_optimized_instances` - (Optional) Whether to use EBS-optimized instances.

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

@@ -33,6 +33,7 @@ The following arguments are supported:
 * `auto_healing` - (Optional) Whether to enable auto-healing for the layer.
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `system_packages` - (Optional) Names of a set of system packages to install on the layer's instances.
 * `url` - (Optional) The URL path to use for Ganglia. Defaults to "/ganglia".

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

@@ -35,6 +35,7 @@ The following arguments are supported:
 * `healthcheck_url` - (Optional) URL path to use for instance healthchecks. Defaults to "/".
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `stats_enabled` - (Optional) Whether to enable HAProxy stats.
 * `stats_url` - (Optional) The HAProxy stats URL. Defaults to "/haproxy?stats".

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

@@ -36,6 +36,7 @@ The following arguments are supported:
 * `jvm_type` - (Optional) Keyword for the type of JVM to use. Defaults to `openjdk`.
 * `jvm_options` - (Optional) Options to set for the JVM.
 * `jvm_version` - (Optional) Version of JVM to use. Defaults to "7".
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `system_packages` - (Optional) Names of a set of system packages to install on the layer's instances.
 * `use_ebs_optimized_instances` - (Optional) Whether to use EBS-optimized instances.

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

@@ -32,6 +32,7 @@ The following arguments are supported:
 * `auto_healing` - (Optional) Whether to enable auto-healing for the layer.
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `system_packages` - (Optional) Names of a set of system packages to install on the layer's instances.
 * `use_ebs_optimized_instances` - (Optional) Whether to use EBS-optimized instances.

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

@@ -31,6 +31,7 @@ The following arguments are supported:
 * `auto_healing` - (Optional) Whether to enable auto-healing for the layer.
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `root_password` - (Optional) Root password to use for MySQL.
 * `root_password_on_all_instances` - (Optional) Whether to set the root user password to all instances in the stack so they can access the instances in this layer.

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

@@ -31,6 +31,7 @@ The following arguments are supported:
 * `auto_healing` - (Optional) Whether to enable auto-healing for the layer.
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `nodejs_version` - (Optional) The version of NodeJS to use. Defaults to "0.10.38".
 * `system_packages` - (Optional) Names of a set of system packages to install on the layer's instances.

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

@@ -31,6 +31,7 @@ The following arguments are supported:
 * `auto_healing` - (Optional) Whether to enable auto-healing for the layer.
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `system_packages` - (Optional) Names of a set of system packages to install on the layer's instances.
 * `use_ebs_optimized_instances` - (Optional) Whether to use EBS-optimized instances.

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

@@ -33,6 +33,7 @@ The following arguments are supported:
 * `auto_healing` - (Optional) Whether to enable auto-healing for the layer.
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `manage_bundler` - (Optional) Whether OpsWorks should manage bundler. On by default.
 * `passenger_version` - (Optional) The version of Passenger to use. Defaults to "4.0.46".

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

@@ -31,6 +31,7 @@ The following arguments are supported:
 * `auto_healing` - (Optional) Whether to enable auto-healing for the layer.
 * `install_updates_on_boot` - (Optional) Whether to install OS and package updates on each instance when it boots.
 * `instance_shutdown_timeout` - (Optional) The time, in seconds, that OpsWorks will wait for Chef to complete after triggering the Shutdown event.
+* `elastic_load_balancer` - (Optional) Name of an Elastic Load Balancer to attach to this layer
 * `drain_elb_on_shutdown` - (Optional) Whether to enable Elastic Load Balancing connection draining.
 * `system_packages` - (Optional) Names of a set of system packages to install on the layer's instances.
 * `use_ebs_optimized_instances` - (Optional) Whether to use EBS-optimized instances.