Deploying Applications with Blue-Green Deployment: A Real-World Example

Short summary

Blue-green deployment maintains two identical environments, deploying new code to the idle one for testing before switching traffic. This approach eliminates downtime, enables instant rollback, and increases deployment confidence. The author automated this with GitHub Actions, Docker, AWS, and Nginx to achieve zero-downtime deployments.

• •Blue-green deployment uses two identical environments for safe, zero-downtime releases with instant rollback capability
• •Author implemented with GitHub Actions CI/CD, Docker containerization, AWS EC2, and Nginx traffic switching
• •Achieved faster deployment cycles and eliminated deployment-related downtime with integrated security scanning

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