add get-stack-instances command

unbounce · Aug 24, 2017 · 779fb90 · 779fb90
1 parent b0b7244
commit 779fb90
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Showing 2 changed files with 52 additions and 1 deletion.
diff --git a/src/cfn/index.ts b/src/cfn/index.ts
@@ -937,6 +937,44 @@ export async function describeStackMain(argv: Arguments): Promise<number> {
   return 0;
 }
 
+export async function getStackInstancesMain(argv: Arguments): Promise<number> {
+  await configureAWS(argv.profile, argv.region);
+  const StackName = argv.stackname;
+  const region = getCurrentAWSRegion();
+
+  const ec2 = new aws.EC2();
+  const instances = await ec2.describeInstances(
+    {Filters:[{Name:'tag:aws:cloudformation:stack-name',
+               Values:[StackName]}]})
+    .promise();
+
+  for (const reservation of instances.Reservations || []) {
+    for (const instance of reservation.Instances || []) {
+      if (argv.short) {
+        console.log(instance.PublicDnsName ? instance.PublicDnsName : instance.PrivateIpAddress);
+      } else {
+        const state = instance.State ? instance.State.Name : 'unknown';
+        const placement = instance.Placement ? instance.Placement.AvailabilityZone : '';
+        console.log(sprintf(
+          '%-42s %-15s %s %-11s %s %s %s',
+          instance.PublicDnsName,
+          instance.PrivateIpAddress,
+          instance.InstanceId,
+          instance.InstanceType,
+          state,
+          placement,
+          formatTimestamp(renderTimestamp(instance.LaunchTime as Date))
+        ));
+      }
+    }
+  }
+
+  console.log(
+    cli.blackBright(
+      `https://console.aws.amazon.com/ec2/v2/home?region=${region}#Instances:tag:aws:cloudformation:stack-name=${StackName};sort=desc:launchTime`));
+  return 0;
+}
+
 export async function getStackTemplateMain(argv: Arguments): Promise<number> {
   await configureAWS(argv.profile, argv.region);
 

diff --git a/src/cli.ts b/src/cli.ts
@@ -32,6 +32,7 @@ interface Commands {
   watchStackMain: Handler
   describeStackMain: Handler
   getStackTemplateMain: Handler
+  getStackInstancesMain: Handler
   deleteStackMain: Handler
 
   estimateCost: Handler
@@ -84,6 +85,7 @@ const lazy: Commands = {
   watchStackMain: lazyLoad('watchStackMain'),
   describeStackMain: lazyLoad('describeStackMain'),
   getStackTemplateMain: lazyLoad('getStackTemplateMain'),
+  getStackInstancesMain: lazyLoad('getStackInstancesMain'),
   deleteStackMain: lazyLoad('deleteStackMain'),
 
   createUpdateChangesetMain: lazyLoad('createUpdateChangesetMain'),
@@ -143,7 +145,7 @@ export async function main() {
       wrapMainHandler(commands.estimateCost))
 
     .command('\t', '') // fake command to add a line-break to the help output
-  
+
     .command(
       'create-changeset           <changesetName> <argsfile>',
       description('create a cfn changeset based on stack-args.yaml'),
@@ -226,6 +228,17 @@ export async function main() {
         .usage('Usage: iidy get-stack-template <stackname>'),
       wrapMainHandler(commands.getStackTemplateMain))
 
+    .command(
+      'get-stack-instances <stackname>',
+      description('list the ec2 instances of a live stack'),
+      (args) => args
+        .demandCommand(0, 0)
+        .option('short', {
+          type: 'boolean', default: false,
+          description: 'Show only instance dns names'})
+        .usage('Usage: iidy get-stack-instances <stackname>'),
+      wrapMainHandler(commands.getStackInstancesMain))
+
     .command(
       'list-stacks',
       description('list all stacks within a region'),