apps: workers support autoscaling (#1296)

digitalocean/app/app_spec.go

@@ -735,6 +735,14 @@ func appSpecWorkerSchema() *schema.Resource {
 			Optional:    true,
 			Description: "The amount of instances that this component should be scaled to.",
 		},
+		"autoscaling": {
+			Type:     schema.TypeList,
+			Optional: true,
+			MaxItems: 1,
+			Elem: &schema.Resource{
+				Schema: appSpecAutoscalingSchema(),
+			},
+		},
 	}
 
 	for k, v := range appSpecComponentBase(workerComponent) {
@@ -2026,6 +2034,11 @@ func expandAppSpecWorkers(config []interface{}) []*godo.AppWorkerSpec {
 			s.LogDestinations = expandAppLogDestinations(logDestinations)
 		}
 
+		autoscaling := worker["autoscaling"].([]interface{})
+		if len(autoscaling) > 0 {
+			s.Autoscaling = expandAppAutoscaling(autoscaling)
+		}
+
 		appWorkers = append(appWorkers, s)
 	}
 
@@ -2053,6 +2066,7 @@ func flattenAppSpecWorkers(workers []*godo.AppWorkerSpec) []map[string]interface
 		r["environment_slug"] = w.EnvironmentSlug
 		r["alert"] = flattenAppAlerts(w.Alerts)
 		r["log_destination"] = flattenAppLogDestinations(w.LogDestinations)
+		r["autoscaling"] = flattenAppAutoscaling(w.Autoscaling)
 
 		result[i] = r
 	}

digitalocean/app/resource_app_test.go

@@ -1044,6 +1044,14 @@ func TestAccDigitalOceanApp_autoScale(t *testing.T) {
 						"digitalocean_app.foobar", "spec.0.service.0.autoscaling.0.max_instance_count", "4"),
 					resource.TestCheckResourceAttr(
 						"digitalocean_app.foobar", "spec.0.service.0.autoscaling.0.metrics.0.cpu.0.percent", "60"),
+					resource.TestCheckResourceAttr(
+						"digitalocean_app.foobar", "spec.0.worker.0.name", "go-worker"),
+					resource.TestCheckResourceAttr(
+						"digitalocean_app.foobar", "spec.0.worker.0.autoscaling.0.min_instance_count", "1"),
+					resource.TestCheckResourceAttr(
+						"digitalocean_app.foobar", "spec.0.worker.0.autoscaling.0.max_instance_count", "2"),
+					resource.TestCheckResourceAttr(
+						"digitalocean_app.foobar", "spec.0.worker.0.autoscaling.0.metrics.0.cpu.0.percent", "80"),
 				),
 			},
 		},
@@ -1676,6 +1684,26 @@ resource "digitalocean_app" "foobar" {
         }
       }
     }
+
+    worker {
+      name               = "go-worker"
+      instance_size_slug = "apps-d-1vcpu-0.5gb"
+
+      git {
+        repo_clone_url = "https://github.com/digitalocean/sample-sleeper.git"
+        branch         = "main"
+      }
+
+      autoscaling {
+        min_instance_count = 1
+        max_instance_count = 2
+        metrics {
+          cpu {
+            percent = 80
+          }
+        }
+      }
+    }
   }
 }`
 

docs/data-sources/app.md

@@ -195,6 +195,12 @@ A `worker` can contain:
           - `password` - Password for user defined in User. Is required when endpoint is set. Cannot be set if using a DigitalOcean DBaaS OpenSearch cluster.
       - `index_name` - The index name to use for the logs. If not set, the default index name is `logs`.
       - `cluster_name` - The name of a DigitalOcean DBaaS OpenSearch cluster to use as a log forwarding destination. Cannot be specified if endpoint is also specified.
+* `autoscaling` - Configuration for automatically scaling this component based on metrics.
+  - `min_instance_count` - The minimum amount of instances for this component. Must be less than max_instance_count.
+  - `max_instance_count` - The maximum amount of instances for this component. Must be more than min_instance_count.
+  - `metrics` - The metrics that the component is scaled on.
+    - `cpu` - Settings for scaling the component based on CPU utilization.
+      - `percent` - The average target CPU utilization for the component.
 
 A `job` can contain:
 

docs/resources/app.md

@@ -407,6 +407,12 @@ A `worker` can contain:
           - `password` - Password for user defined in User. Is required when endpoint is set. Cannot be set if using a DigitalOcean DBaaS OpenSearch cluster.
       - `index_name` - The index name to use for the logs. If not set, the default index name is `logs`.
       - `cluster_name` - The name of a DigitalOcean DBaaS OpenSearch cluster to use as a log forwarding destination. Cannot be specified if endpoint is also specified.
+- `autoscaling` - Configuration for automatically scaling this component based on metrics.
+  - `min_instance_count` - The minimum amount of instances for this component. Must be less than max_instance_count.
+  - `max_instance_count` - The maximum amount of instances for this component. Must be more than min_instance_count.
+  - `metrics` - The metrics that the component is scaled on.
+    - `cpu` - Settings for scaling the component based on CPU utilization.
+      - `percent` - The average target CPU utilization for the component.
 
 A `job` can contain: