Developer Builds Reproducible Jenkins-DevPod CI Pipeline Using Mise Toolchain Manager

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A developer documented the end-to-end process of building an isolated, reproducible CI pipeline using Jenkins as the orchestrator, DevPod containers as SSH-connected build agents, and Mise for declarative runtime management. The setup addresses the common 'Works on My Machine' problem by separating the Jenkins Controller from actual build execution, delegating compilation and testing to ephemeral DevPod containers. Mise manages runtimes including Python, Java 21, and Node.js deterministically via a mise.toml file, avoiding global path pollution. The project is structured as a monorepo and includes a Jenkinsfile, Dockerfile, and pytest-based test suite for a sample Python application. The author also catalogued ten real-world errors encountered during setup, covering issues such as shell differences, SSH agent quirks, and environment activation edge cases.

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