https://www.cloudkaramchari.com/tags/auto-scaling/Recent content in Auto Scaling on CloudkaramchariHugo -- gohugo.ioencloudkaramchariWed, 26 Aug 2026 16:15:00 +0530https://www.cloudkaramchari.com/blog/amazon-ec2-application-status-checks-setup-guide/Wed, 26 Aug 2026 16:15:00 +0530https://www.cloudkaramchari.com/blog/amazon-ec2-application-status-checks-setup-guide/ <h1 id="amazon-ec2-application-status-checks-setup-guide-and-auto-scaling-integration">Amazon EC2 Application Status Checks: Setup Guide and Auto Scaling Integration</h1> <p>On August 12, 2026, AWS shipped a status check type EC2 has never had: one that actually asks your application whether it's healthy, instead of asking the VM. The existing system and instance status checks only tell you the hypervisor is fine and the instance is booted — neither one notices a hung web server, a dead Docker daemon, or an app stuck returning 500s while the OS underneath it looks perfectly healthy. Teams have worked around this for years with a Lambda cron hitting a <code>/health</code> endpoint, or by only getting this behavior for free inside an ALB target group. Application status checks bring that capability directly to EC2 instances and wire it straight into Auto Scaling. Here's how it actually works, how to set it up, and the deployment gotcha that will bite you if you skip it.</p>