Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Step 3: Check your results

In this step, you'll check to see that CodeDeploy installed the SimpleDemoApp revision on the single Amazon EC2 instance in the Auto Scaling group.

To check the results (CLI)

First, you'll need the public DNS of the Amazon EC2 instance.

Use the Amazon CLI to get the public DNS of the Amazon EC2 instance in the Auto Scaling group by calling the describe-instances command.

Before you call this command, you will need the ID of the Amazon EC2 instance. To get the ID, call the describe-auto-scaling-groups against CodeDeployDemo-AS-Group as you did before:

aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names CodeDeployDemo-AS-Group --query "AutoScalingGroups[0].Instances[*].InstanceId" --output text

Now call the describe-instances command:

aws ec2 describe-instances --instance-id instance-id --query "Reservations[0].Instances[0].PublicDnsName" --output text

The returned value is the public DNS of the Amazon EC2 instance.

Using a web browser, show the SimpleDemoApp revision deployed to that Amazon EC2 instance, using a URL like the following:

http://ec2-01-234-567-890.compute-1.amazonaws.com

If you see the congratulations page, you've successfully used CodeDeploy to deploy a revision to a single Amazon EC2 instance in an Auto Scaling group!

Next, you'll add an Amazon EC2 instance to the Auto Scaling group. After Amazon EC2 Auto Scaling adds the Amazon EC2 instance, CodeDeploy will deploy your revision to the new instance.

To check the results (console)

First, you'll need the public DNS of the Amazon EC2 instance.

Open the Amazon EC2 console at https://console.amazonaws.cn/ec2/.

In the Amazon EC2 navigation pane, under Auto Scaling, choose Auto Scaling Groups, and then choose the CodeDeployDemo-AS-Group entry.

On the Instances tab, choose the Amazon EC2 instance ID in the list.

On the Instances page, on the Description tab, note the Public DNS value. It should look something like this: ec2-01-234-567-890.compute-1.amazonaws.com.

Using a web browser, show the SimpleDemoApp revision deployed to that Amazon EC2 instance, using a URL like the following:

http://ec2-01-234-567-890.compute-1.amazonaws.com

If you see the congratulations page, you've successfully used CodeDeploy to deploy a revision to a single Amazon EC2 instance in an Auto Scaling group!

Next, you add an Amazon EC2 instance to the Auto Scaling group. After Amazon EC2 Auto Scaling adds the Amazon EC2 instance, CodeDeploy will deploy your revision to the new Amazon EC2 instance.