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Jenkins promoted-builds plugin

README.md

See the wiki at: http://wiki.jenkins-ci.org/display/JENKINS/Promoted+Builds+Plugin

Build Status: Build Status

This plugin allows you to distinguish good builds from bad builds by introducing the notion of 'promotion'.Put simply, a promoted build is a successful build that passed additional criteria (such as more comprehensive tests that are set up as downstream jobs.) The typical situation in which you use promotion is where you have multiple 'test' jobs hooked up as downstream jobs of a 'build' job. You'll then configure the build job so that the build gets promoted when all the test jobs passed successfully. This allows you to keep the build job run fast (so that developers get faster feedback when a
build fails), and you can still distinguish builds that are good from builds that compiled but had runtime problems.

Another variation of this usage is to manually promote builds (based on instinct or something else that runs outside Jenkins.) Promoted builds will get a star in the build history view, and it can be then picked up by other teams, deployed to the staging area, etc., as those builds have passed additional quality criteria. In more complicated scenarios, one can set up multiple levels of promotions. This fits nicely in an environment where there are multiple stages of testings (for example, QA testing, acceptance testing, staging, and production.)

Promotion Action

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.) This is useful for example to copy the promoted build to somewhere else, deploy it to your QA server. You can also define it as a separate job and then have the promotion action trigger that job.

Do not rely on files in the workspace The promotion action uses the workspace of the job as the current directory (and as such the execution of the promotion action is mutually exclusive from any on-going builds of the job.) But by the time promotion runs, this workspace can contain files from builds that are totally unrelated from the build being promoted.

To access the artifacts, use the Copy Artifact Plugin and choose the permalink.

Usage

To use this plugin, look for the "Promote builds when..." checkbox, on the Job-configuration page. Define one or a series of promotion processes for the job.

How might you use promoted builds in your environment? Here are a few use cases.

Artifact storage -- you may not want to push an artifact to your main artifact repository on each build. With build promotions, you can push only when an artifact meets certain criteria. For example, you might want to push it only after an integration test is run.

Manual Promotions - You can choose a group of people who can run a promotion manually. This gives a way of having a "sign off" within the build system. For example, a developer might validate a build and approve it for QA testing only when a work product is completed entirely. Then another promotion can be added for the QA hand off to production.

Aggregation of artifacts - If you have a software release that consists of several not directly related artifacts that are in separate jobs, you might want to aggregate all the artifacts of a proven quality to a distribution location. To do this, you can create a new job, adding a "Copy artifacts from another job" (available through Copy Artifact plugin") for each item you want to aggregate. To get a certain promotion, select "Use permalink" in the copy artifact step, then your promoted build should show up in the list of items to copy.

Notes

On Downstream Promotion Conditions

One of the possible criteria for promoting a build is "When the following downstream projects build successfully", which basically says if all the specified jobs successfully built (say build BD of job JD), the build in the upstream will be promoted (say build BU of job JU.)

This mechanism crucially relies on a "link" between BD and BU, for BU isn't always the last successful build. We say "BD qualifies BU" if there's this link, and the qualification is established by one of the following means:

  1. If BD records fingerprints and one of the fingerprints match some files that are produced by BU (which is determined from the fingerprint records of BU), then BD qualifies BU. Intuitively speaking, this indicates that BD uses artifacts from BU, and thus BD helped verify BU's quality.
  2. If BU triggers BD through a build trigger, then BD qualifies BU. This is somewhat weak and potentially incorrect, as there's no machine-readable guarantee that BD actually used anything from BU, but nonetheless this condition is considered as qualification for those who don't configure fingerprints.

Note that in the case #1 above, JU and JD doesn't necessarily have to have any triggering relationship. All it takes is for BD to use some fingerprinted artifacts from BU, and records those fingerprints in BD. It doesn't matter how those artifacts are retrieved either — it could be via Copy Artifact Plugin, it could be through a maven repository, etc. This also means that you can have a single test job (perhaps parameterized), that can promote a large number of different upstream jobs.

Available Environment Variables

The following environment variables are added for use in scripts, etc. These were retrieved from github here.

  • PROMOTED_URL - URL of the job being promoted
  • PROMOTED_JOB_NAME - Promoted job name
    • ex: job_name_being_promoted
  • PROMOTED_NUMBER - Build number of the promoted job
    • ex: 77
  • PROMOTED_ID - ID of the build being promoted
    • ex: 2012-04-12_17-13-03
  • PROMOTED_USER_NAME - the user who triggered the promotion
  • PROMOTED_JOB_FULL_NAME - the full name of the promoted job

Contributing

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