What are the major challenges of blue/green deployments with relational databases?
Tests decoupling schema and code changes in stateful blue/green deployments. Strong answers cover the additive-then-deletive pattern, backward compatibility for both app versions, and shared DB risks. Red flag: split DBs with no rollback or sync plan.
Tests safe relational schema evolution during blue/green deployments. A strong answer explains decoupling schema from code, using additive changes before cutover and deletive cleanup after, while keeping both app versions backward compatible with the shared database. It notes that schema failures directly impact production and stresses rigorous predeployment testing in a staging environment first. Red flag: treating the database as environment-local or bundling schema and code into one atomic cutover that prevents rollback.
Read the original → docs.aws.amazon.com
- #ci/cd
- #databases
- #deployment
- #schema
- #blue-green
Get five bites like this every day.
Tezvyn delivers a daily feed of 60-second tech bites with quizzes to lock in what you learn.