VOLTHA Components: ONOS
A few different processes exist for releasing the VOLTHA project and componets. Some are released through github using branches/tags/downloads. Others are released as packages on maven central.
A jenkins job exists for releasing ONOS app
- Maven central based release 
- Release process requires some manual steps. 
- 
- Initiate a build with parameters for the target component. - Use repository name not name of the app itself. 
- Specify appVersion and apiVersion stored in the pom.xml file. 
 
- Job will modify pom.xml and create pull requests based on version strings. - NOTE: Two pull requests are created to modify pom.xml - One for release (x.y.z) - The second to revert to non-release version (x.(y+1).z-SNAPSHOT) - Approve and merge the release version while performing the release. - Once published approve the 2nd version change to re-attach the -SNAPSHOT suffix. 
- Version x.y.z-SNAPSHOT is the default non-release version. 
- Jenkins job will morph x.y.z-SNAPSHOT into x.y.z for the release. 
- A gerrit pull request will be created under the release requestor(s) name. 
 
- Approve the pom.xml pull request and merge. 
- Merge will trigger (https://jenkins.opencord.org/job/maven-publish_sadis/ for sadis app, similar link for olt and other apps) that publish the artifact in the staging repo on oss.sonatype.org, you need to release it. 
- Wait for build to complete 
- Merge the patches here https://gerrit.opencord.org/q/owner:do-not-reply%2540opennetworking.org 
 
- Publish sonatype staging to maven central: - Visit https://oss.sonatype.org 
- Login with ONF credentials - Search for org.opencord 
- Click on “Staging repositories” (in the left side navigation) 
- In the top right search for last part of the app name (eg: olt) 
- Click release (top left bar, small button) 
 
 
- Release all other apps/components (dependency hierarch): - Iterate over individual components in order of increasing dependency volume. - For ex olt depends on sadis 
- Begin by releasing sadis first 
- Once publishing has completed then olt can be released. 
 
- Verify expected dependent version has been released. 
- Modify pom.xml, update dep version(s) from x.z.y-SNAPSHOT to x.y.z 
- Commit and submit.