added cluster_id parameter and modified hostid to host_id (apache#79)

Author: kiranchavala

cloudstack/resource_cloudstack_instance.go

@@ -144,7 +144,12 @@ func resourceCloudStackInstance() *schema.Resource {
 				Optional: true,
 			},
 
-			"hostid": {
+			"host_id": {
+				Type:     schema.TypeString,
+				Optional: true,
+			},
+
+			"cluster_id": {
 				Type:     schema.TypeString,
 				Optional: true,
 			},
@@ -333,12 +338,18 @@ func resourceCloudStackInstanceCreate(d *schema.ResourceData, meta interface{})
 		p.SetKeypair(keypair.(string))
 	}
 
-	// If a hostid is supplied, add it to the parameter struct
+	// If a host_id is supplied, add it to the parameter struct
 
-	if hostid, ok := d.GetOk("hostid"); ok {
+	if hostid, ok := d.GetOk("host_id"); ok {
 		p.SetHostid(hostid.(string))
 	}
 
+	// If a cluster_id is supplied, add it to the parameter struct
+
+	if clusterid, ok := d.GetOk("cluster_id"); ok {
+		p.SetClusterid(clusterid.(string))
+	}
+
 	if userData, ok := d.GetOk("user_data"); ok {
 		ud, err := getUserData(userData.(string), cs.HTTPGETOnly)
 		if err != nil {

website/docs/r/instance.html.markdown

@@ -34,6 +34,12 @@ The following arguments are supported:
 * `service_offering` - (Required) The name or ID of the service offering used
     for this instance.
 
+* `host_id` -  (Optional)  destination Host ID to deploy the VM to - parameter available 
+   for root admin only
+
+* `cluster_id` - (Optional) destination Cluster ID to deploy the VM to - parameter available
+   for root admin only
+
 * `network_id` - (Optional) The ID of the network to connect this instance
     to. Changing this forces a new resource to be created.