What is the difference between Jenkins job and pipeline?

What is the difference between Jenkins job and pipeline?

In contrast to freestyle jobs, pipelines enable you to define the whole application lifecycle. Pipeline functionality helps Jenkins to support continuous delivery (CD). The Pipeline plugin was built with requirements for a flexible, extensible, and script-based CD workflow capability in mind.

What is promotion in Jenkins?

When a build is promoted, you can have Jenkins perform some actions (such as running a shell script, triggering other jobs, etc. — or in Jenkins lingo, you can run build steps.) But by the time promotion runs, this workspace can contain files from builds that are totally unrelated from the build being promoted.

What is the key differentiator between a Jenkins job and a Jenkins project?

From the Jenkins CI forum: A project is a special case of a job, i.e. all projects are jobs, but not all jobs are projects. Perhaps it helps to extend mentally the names to “general purpose jobs” and “software building projects” (although the latter don’t need to build software, they are tailored to this use case).

What can be done to promote builds in Jenkins?

Here is how to setup the promotion on build job:

• You will need these plugins: Parameterized Trigger Plugin, Promoted Builds Plugin.
• You will also need to setup default Archive the Artifacts post-build action on this build job.
• Check mark Promote builds when.
• Define Name “Deploy to DEV”

How do you clear the workspace in Jenkins pipeline?

If you have used custom workspace in Jenkins then deleteDir() will not delete @tmp folder….Follow these steps:

1. Navigate to the latest build of the pipeline job you would like to clean the workspace of.
2. Click the Replay link in the LHS menu.
3. Paste the above script in the text box and click Run.

Why people still use Jenkins?

The reason why Jenkins is still around is because developers who started out with jenkins (without any other option) are still around and because people like to write Bash-Scripts in GUIs which means your deployment-logic is tied to your CI-Server.

How to create a promotion pipeline in Jenkins?

The Promotion Email link can look like this: http://localhost:8080/job/SampleAppQApromotion/1/promotion/ Once the approver clicks on the link, the approval screen will come as below. Once approved, the deploy job will run and the pipeline may look like below.

How to chain multiple promotion jobs in Jenkins?

This job can call a script to perform a deployment or use tools like Bamboo or Urbancode. We can chain multiple Promotion Jobs and Deploy jobs to accomplish the need for another environment, for e.g. UAT Promotion -> UAT Deploy ->PreProd Promotion -> PreProd Deploy -> Prod Promotion -> Prod Deploy

What’s the difference between agent and stage in Jenkins?

agent is Declarative Pipeline-specific syntax that instructs Jenkins to allocate an executor (on a node) and workspace for the entire Pipeline. stage is a syntax block that describes a stage of this Pipeline. Read more about stage blocks in Declarative Pipeline syntax on the Pipeline syntax page.

What is the job DSL plugin in Jenkins?

The Job-DSL plugin in Jenkins allows you to automate job creation and configuration which makes it easy to maintain hundreds of jobs more than manually, which would not be fun for sure. The Job-DSL plugin uses groovy for scripting, which means both the Developer and the Devops team should have groovy knowledge.