feat(cli): set supported fargate regions as options to --region flag

Author: bernardobridge

packages/artillery/lib/cmds/run-fargate.js

@@ -8,6 +8,7 @@ const telemetry = require('../telemetry').init();
 const { Plugin: CloudPlugin } = require('../platform/cloud/cloud');
 
 const runCluster = require('../platform/aws-ecs/legacy/run-cluster');
+const { supportedRegions } = require('../platform/aws-ecs/legacy/util');
 const PlatformECS = require('../platform/aws-ecs/ecs');
 const { ECS_WORKER_ROLE_NAME } = require('../platform/aws/constants');
 
@@ -66,7 +67,8 @@ RunCommand.flags = {
   }),
   region: Flags.string({
     char: 'r',
-    description: 'The AWS region to run in'
+    description: 'The AWS region to run in',
+    options: supportedRegions
   }),
   secret: Flags.string({
     multiple: true,

packages/artillery/lib/platform/aws-ecs/legacy/run-cluster.js

@@ -467,18 +467,6 @@ async function tryRunCluster(scriptPath, options, artilleryReporter) {
     taskArns: []
   });
 
-  if (
-    typeof options.region !== 'undefined' &&
-    util.supportedRegions.indexOf(options.region) === -1
-  ) {
-    console.log(
-      `Unsupported region (${
-        options.region
-      }) provided. Please specify one of: ${util.supportedRegions.join(', ')} `
-    );
-    process.exit(1);
-  }
-
   if (typeof options.region !== 'undefined') {
     context.region = options.region;
   }