How do "Blue-Green Deployments" fit into Continuous Integration and Continuous Deployment practices?

  • They act as version control systems
  • They allow for zero-downtime deployments
  • They enable simultaneous code editing
  • They provide database backups
Blue-Green Deployments are a strategy to achieve zero-downtime deployments by maintaining two production environments, blue (current) and green (new). When deploying a new release, it's first deployed to the "green" environment. Once everything is confirmed to work perfectly, the traffic is switched to "green" from "blue", ensuring that at no point there's any downtime. This aligns with CI/CD's principles of rapid and reliable deployments.
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