ci-cd-and-automation

Create a workflow file at .github/workflows/ci.yml that triggers on pull requests and pushes to main. Add jobs that check out the code, set up Node.js, run npm ci, then execute lint, tsc --noEmit, tests with coverage, build, and npm audit in sequence.

Define a postgres service container in the workflow job with health checks, then run migrations and integration tests against it using a DATABASE_URL environment variable. Store the database password in GitHub Secrets rather than hardcoding it.

Cache dependencies with the setup-node cache option, split lint, typecheck, and test into parallel jobs, and use path filters to skip unrelated jobs. For further gains, shard test suites across runners or move slow tests off the critical path.

Feature flags decouple deployment from release by gating new code behind a runtime check. You can merge incomplete features to main, enable them for a percentage of users, and disable them without redeploying. Remove flags after full rollout to avoid technical debt.

Skipping failing gates lets broken code reach production and erodes trust in the pipeline. Fix the underlying lint error, type error, or failing test instead of disabling the rule, and treat flaky tests as real bugs to fix.

Create a manually triggered workflow that accepts a version input and redeploys that previous version, such as with vercel rollback. Pair it with staged rollouts and a post-deploy monitoring window so errors trigger rollback before wide impact.