Apply three Twelve-Factor principles that reduce environment drift and operational surprise.
The move: stop mixing deployable code with environment state. Twelve-Factor apps are designed for modern service delivery. The full method has twelve factors, but three are immediately practical in DevOps work: one codebase with many deploys, config in the environment, and logs as event streams. One codebase, many deploys The same codebase should produce the deployable artifact that moves through development, staging, and production. If each environment gets a special build, you cannot tell whether a failure comes from the code or the build ritual. Config in the environment Environment-specific values should not be hardcoded or hidden in a manual…
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