Deploy a New Version of the Application (v2)

Short summary

A step-by-step DevOps lab walking through deploying application v2 using Docker, Amazon ECR, and ECS. Covers building and tagging a new image, pushing to ECR, creating a new ECS Task Definition revision, and performing a rolling deployment with zero downtime. Includes verification steps and reflection questions on rollback strategy and deployment safety.

• •Build and tag Docker image v2, push to Amazon ECR alongside v1 for rollback safety
• •Create new ECS Task Definition revision pointing to v2 image and update the ECS Service
• •Rolling deployment replaces old containers with new ones after health checks pass, minimizing downtime

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