new_stemcell_line.md

Creating a new stemcell line

1. Create a new branch from the passing commit you want to release from. Use {os_name}-{os_version}/{major}.x format for branch name (e.g. ubuntu-xenial/1.x).

   git checkout -b <<BRANCH_NAME>> {commit}

2. Add, commit, and push the new branch.

   git push origin <<BRANCH_NAME>>
   

3. Switch back to master branch

   git checkout master
   

4. On master, update ci/{os_name}-{os_version}/configure-aggregated-pipeline.sh with the new branch details using the previous release branch as an example. Specifically, be sure to update the interpolated variables for the correct branch. For initial_version, use the same value of the stemcell produced by the commit in the master pipeline (e.g. 2.0.0).

   ./ci/{os_name}-{os_version}/configure-aggregated-pipeline.sh
   

5. Once configured, the stemcell should automatically trigger and create the next minor version of the stemcell (e.g. 2.1.0).

References

• Stemcell Support Matrix (internal only)