feat(api): add EC2 Auto Scaling groups to the cloud explorer

Create groups from a launch template (in the default subnets unless given),
change their minimum, desired and maximum capacity, replace or remove an
instance, and follow the launches and terminations TheCloud's reconciler makes.
Deleting a group terminates its instances. Scaling policies are not offered:
the runtime stores them but its alarms only drive ECS scaling.

packages/api/src/routes/clouds.test.ts

@@ -18,6 +18,7 @@ import {awsStorageSchema, azureStorageSchema, gcpStorageSchema} from '../cloud-s
 import {awsSesEmailSchema} from '../cloud-spi/emailSchema'
 import {awsUserPoolsSchema} from '../cloud-spi/userPoolsSchema'
 import {awsCdnSchema} from '../cloud-spi/cdnSchema'
+import {awsAutoScalingSchema} from '../cloud-spi/autoScalingSchema'
 import {awsCertificatesSchema} from '../cloud-spi/certificatesSchema'
 import {awsMonitoringSchema} from '../cloud-spi/monitoringSchema'
 import {awsAppConfigSchema} from '../cloud-spi/appConfigSchema'
@@ -852,6 +853,28 @@ describe('cloud schema routes', () => {
         expect(calls).toEqual([['pem', 'c1'], ['export', 'c1', 'secret'], ['revoke', 'c1', 'UNSPECIFIED']])
     })
 
+    test('changes capacity and terminates an instance through the Auto Scaling adapter', async () => {
+        const calls: unknown[] = []
+        const app = appWithRoutes([mockAdapter('aws', {
+            service: 'autoscaling',
+            schema: awsAutoScalingSchema,
+            setAutoScalingCapacity: async (id, input) => {
+                calls.push(['capacity', id, input])
+                return {id, name: id, cloud: 'aws', service: 'autoscaling', type: 'autoScalingGroup', region: null, createdAt: null, metadata: {desiredCapacity: 3}}
+            },
+            terminateAutoScalingInstance: async (id, instanceId, replace) => {
+                calls.push(['terminate', id, instanceId, replace])
+            },
+        })])
+        const json = (method: string, body: unknown) => ({method, headers: {'content-type': 'application/json'}, body: JSON.stringify(body)})
+        const base = '/api/clouds/aws/services/autoscaling/resources/web-asg'
+
+        const updated = await app.request(`${base}/capacity`, json('PUT', {desiredCapacity: 3}))
+        expect((await updated.json()).metadata.desiredCapacity).toBe(3)
+        expect((await app.request(`${base}/instances/i-abc/terminate`, json('POST', {replace: true}))).status).toBe(200)
+        expect(calls).toEqual([['capacity', 'web-asg', {desiredCapacity: 3}], ['terminate', 'web-asg', 'i-abc', true]])
+    })
+
     test('clears the SES mailbox through the email adapter', async () => {
         let cleared = false
         const app = appWithRoutes([mockAdapter('aws', {