Our GitHub Actions pipeline for a serverless API failed every time a merge did not change the stack, such as documentation-only commits: Error: No changes to deploy. How CloudFormation empty changesets work, the flag that makes sam deploy exit cleanly, and the samconfig and OIDC setup we use per environment.
Our pipelines and Dockerfiles ran corepack enable before installing dependencies with pnpm. After we bumped the base image from Node.js 24 to 26, every build failed: corepack: command not found. Corepack is no longer bundled with Node.js from version 25. How we install it explicitly and keep versions pinned.
Every second build on our Jenkins agent failed at checkout with Permission denied while deleting node_modules. A docker run step in the pipeline had written files as root into the bind-mounted workspace. How we proved it, fixed the user mapping and made cleanup reliable.
Helm 4 is the first major Helm release in six years. We moved forty charts and three deployment pipelines from Helm 3. Notes on what changed for us in practice: server-side apply and field ownership, the new kstatus-based waiting, the plugin system, CLI changes, and the test plan that caught problems before production.
Software CI checks code. ML systems also change when data changes, when a model is retrained, or when a dependency shifts numerics. This guide lays out a CI/CD pipeline for ML: versioning, tests for data and models, reproducible training, promotion gates and deployment.
Releasing our React Native app used to take a developer most of a day: bump versions, sign, build two platforms, upload, fill in notes. We moved it to fastlane lanes run from CI on a git tag. Project layout, versioning, signing with match, TestFlight and Play internal tracks, secrets, and what still needs a human.
After moving iOS builds to a self-hosted Mac runner with fastlane match, archives hung for an hour at the codesign step, or failed with errSecInternalComponent. codesign was waiting for a keychain it could not unlock without a GUI prompt. How setup_ci, a temporary keychain and the key partition list fixed it.
Our shared Terraform modules broke consumers twice in one quarter. We added terraform test: fast plan-mode tests with mocked providers on every pull request, and a nightly apply-mode suite against a sandbox account. The test layout, what to assert, and what it costs.