Autorelease Builds

OpenDaylight’s primary build pipeline is called “autorelease”. It is managed by the RelEng/Autorelease project, and primarily takes the form of Autorelease’s Jenkins jobs.

Autorelease builds every project from source. Artifact versions are rewritten from the -SNAPSHOT suffixes in version control to release versions, like -Carbon-SR1 or -Nitrogen. This contrasts with distribution jobs, which build only a few projects from source and use -SNAPSHOT artifact versions. This makes autorelesae builds slow, but identical to actual releases, whereas distribution builds are fast but slightly less similar to official releases.

Daily Releases

Autorelease’s Jenkins jobs run daily for every active branch, including master.

Each of those jobs, when the build is successful, produces build artifacts that include an OpenDaylight distribution.

To download the distribution

  1. Pick an autorelease job that completed successfully (yellow or blue dot)

  2. Access its logged console output

    Logs are hosted on, at URLs like<stream>/ <build_number>/, where stream could be “Fluorine” build_number “52”.

    There will be a link at the top of build’s Jenkins page.

  3. Open deploy-staged-repository.log.gz in browser

    Search for “staging repository with ID” to find the repository ID, which will be of the form “autorelease-1432”.

  4. Navigate to OpenDaylight’s Nexus and find the staging repository with the same name

  5. Drill down into one of these directories to find the build artifacts:

    • Carbon or older: org/opendaylight/integration/distribution-karaf/
    • Nitrogen or newer: org/opendaylight/integration/karaf/


Autorelease build artifacts are persevered for 60 days.

Autorelease jobs trigger OpenDaylight’s distribution tests when they complete.

To see the test results

  1. Go to integration-distribution-test-<branch> job’s Jenkins page

  2. Find the job that started after the autorelease in question finished

  3. Open it and explore the subprojects section for test results of all the jobs triggered.

    For example, in case of Nitrogen, you can find the list and the results of jobs triggered here.

The latest successful autorelease builds can also be easily found in Nexus at staging/org/opendaylight/integration/distribution-karaf/. Look for 0.5.4-Boron-SR4, 0.6.1-Carbon-SR1, 0.7.0-Nitrogen or similar staging repositories. Note that the artifacts in these repositories are not static - they are replaced each time new artifacts are generated. Use the “autorelease-XXXX” repositories described above for semi-persistent URLs.

Official Releases

As a part of the OpenDaylight community’s efforts to move towards Continuous Delivery, there is very little mechanical difference between the automated daily releases documented above and official releases. The same autorelease job runs, builds artifacts and kicks off distribution tests against them. When doing official releases, the OpenDaylight community iterates through those builds (calling them Release Candidate 1, RC2, …) until no blocking bugs are found. The OpenDaylight Technical Steering Committee then hears feedback from the Release Engineering and Integration/Test teams, and if all’s well blesses the build as an official release. The build’s Nexus staging repo is then promoted to a release repo and publicized (example: opendaylight.release/org /opendaylight/integration/distribution-karaf/0.6.0-Carbon). Official releases are persevered forever.

For more information about OpenDaylight releases, including timelines, see the Release Plans.