Blue/green deployments enable zero-downtime application updates by maintaining two identical environments - one serving production traffic (blue) and another for testing new versions (green). This comprehensive guide demonstrates implementing blue/green deployments in Kubernetes using Terraform, covering the complete workflow from initial deployment through traffic switching and rollback procedures. The tutorial includes practical examples with a Flask application, Docker containerization, and Kubernetes resource management, plus best practices for automation, testing, and handling stateful applications with database considerations.
Table of contents
Automate the blue/green deployment processImplement continuous testing and improvementsPrepare a rollback planDefine and measure a successful deploymentHandle stateful applications with careSort: