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Axel
Asked: 2019-05-19 00:14:57 +0800 CST

How to use Aws code-deploy with Auto-scaling group

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We have auto-scaling group behind an Application load balancer which launches instances if the avg. CPU Utilization goes beyond 70%.

We have created a base AMI for the auto-scaling group.

But the problem is that our website updates almost on a regular or weekly basis so what we can configure to allow AWS code-deploy to automatically deploy our latest revision from github on those instances created via auto-scaling group?

If any more information is required please let me know.

amazon-web-services

2 Answers

  1. Code Deploy fully supports Auto Scaling.

    Here are the steps to integrate these two services: Integrating CodeDeploy with Amazon EC2 Auto Scaling

    Hope that helps :)

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  2. You just have to point the deployment group to Auto-scaling group.

    It is a horrifying implicit magic.

    However, to make it work you need to set Deployment type In-place, or you will get a new auto scaling group instead. And it mean that you still need 2 instances at least.

    Initiating event on each 'Deployment' can tell you more. If your autoScaling group would start a new instance, you will have a new deployment in your CodeDeploy and the Initiating event would say autoScaling, when normally it would say user.

    Also look into Auto Scaling Group Lifecycle Hook. The Code deploy creates the hook and name it like so

    CodeDeploy-managed-automatic-launch-deployment-hook-Your-Deployment-Group-name-some_numbers

    and it somehow knows the Revision. Documentetion.

    I could not trace of how SQS Notification from Auto Scaling Group Lifecycle Hook connected to exact CodeDeploy Deployment group and that is why I call it magic.

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