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How does Jenkins CI work internally?

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As an experienced tutor specializing in automation testing coaching, understanding the internal workings of Jenkins CI is crucial for harnessing its full potential. Let's delve into the internal mechanisms that power Jenkins CI workflows. Jenkins CI Internals Overview 1. Master and Slave Architecture: Jenkins...
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As an experienced tutor specializing in automation testing coaching, understanding the internal workings of Jenkins CI is crucial for harnessing its full potential. Let's delve into the internal mechanisms that power Jenkins CI workflows. Jenkins CI Internals Overview 1. Master and Slave Architecture: Jenkins follows a master-slave architecture where the master node orchestrates and manages the entire CI/CD pipeline, while slave nodes execute tasks. 2. Job Configuration: Jenkins CI begins with the configuration of jobs, representing individual tasks or workflows in the CI pipeline. 3. Trigger Mechanisms: Builds in Jenkins can be triggered manually by developers or automatically based on events such as code commits to the version control system (e.g., Git). Jenkins CI Workflow Execution Step 1: Job Triggering A Jenkins job is triggered, either manually or automatically based on configured triggers. Step 2: Workspace Setup Jenkins allocates a workspace for the job, providing an isolated environment for its execution. Step 3: Source Code Retrieval Jenkins fetches the source code from the version control system (e.g., Git) based on the configured repository in the job. Step 4: Build Execution Jenkins initiates the build process, which may involve compilation, testing, and other tasks defined in the job configuration. Step 5: Artifact Generation If the build is successful, Jenkins generates artifacts - executable files, libraries, or other outputs produced during the build. Step 6: Deployment (Optional) Depending on the CI/CD pipeline, Jenkins can be configured to deploy the artifacts to specified environments for further testing or production. Step 7: Notifications and Reporting Jenkins notifies relevant stakeholders about the build status and generates reports detailing the outcome of the build and any associated tests. Jenkins CI Executors 1. Build Executors: Jenkins utilizes build executors to carry out tasks concurrently on multiple nodes, improving the efficiency of the CI pipeline. 2. Agent Nodes: Agent nodes, also known as build agents or slaves, execute tasks assigned by the master node, enabling parallel execution of builds. Why UrbanPro for Automation Testing Coaching? 1. In-Depth Understanding: UrbanPro's coaching ensures learners grasp the intricate details of Jenkins CI internals, empowering them to implement robust CI/CD pipelines. 2. Practical Application: Tutors on UrbanPro emphasize the practical application of Jenkins CI, allowing students to gain hands-on experience in automation testing workflows. 3. Expert Guidance: Access expert tutors on UrbanPro who provide guidance on mastering Jenkins CI internals, enhancing your proficiency in automation testing. 4. Flexibility in Learning: UrbanPro offers flexibility in scheduling online coaching sessions, allowing learners to balance their Jenkins CI learning journey with other commitments. Conclusion Understanding the internal workings of Jenkins CI is essential for anyone involved in automation testing. Explore UrbanPro to connect with experienced tutors and coaching institutes, ensuring you master Jenkins CI internals for effective implementation in your automation testing projects. Elevate your skills and advance your career with UrbanPro's trusted coaching resources. read less
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