Understanding Jenkins Pipelines
- Code: Coders write app source code and manage versions in systems like Git. These code repositories track all changes over time. Webhooks can connect the Git repositories to the Jenkins automation server. These event triggers notify Jenkins when coders push code changes. This automatically starts Jenkins jobs to kick off build pipelines based on code updates without needing manual help.
- Build: When code commits happen, Jenkins gets the newest source code files to add updates. The self-hosted agents pool offers environments for builds to run. Trusted build tools like Maven, Ant, Gradle, and Microsoft MSBuild are set up on agents. Jenkins has plug-ins to call these tools. Build tools compile code, bundle libraries, make binaries/artifacts, and package them as JARs, WARs, containers. Unit tests and code checks validate quality and best practices during builds.
- Test: Before launch, the built code needs more real testing. Jenkins coordinates testing across the pipeline. Testing includes types like user interface, performance, security, compatibility. Quality assurance teams design test plans, cases and suites to run either manually or using frameworks like Selenium. Jenkins starts all these tests and organizes detailed results reports, logs, metrics.
- Signing/Security: Extra controls like code signing can improve quality and security. Automated scanning of builds checks for issues early. Manual approvals from oversight teams enforce governance policies.
- Deploy: Jenkins helps deploy vetted code to downstream environments like testing, staging and production. Cloud platforms offer flexible hosts. Containers standardize environments. Tools manage resource pools. Jenkins ties into major platforms like AWS, Azure, Kubernetes, Docker.
- Inform: Emails update teams on pipeline progress from code commits to deployments. Dashboards grant visibility through pipeline graphs, logs, testing reports.
Jenkins pipelines let teams build workflows that automatically build, test, and release their apps.
Understanding Jenkins CI/CD Pipeline And Its Stages
Jenkins is an open-source automation server that enables developers to reliably build, test, and deploy applications. It supports continuous integration and continuous delivery (CI/CD) workflows that allow teams to frequently deliver high-quality software. Jenkins is extremely popular, with over 100,000 installations worldwide.
At its core, Jenkins provides an automation engine with an extensive plugin ecosystem that offers integrations for practically any DevOps toolchain. This allows Jenkins to fit into diverse infrastructure setups and support all types of development processes.