zuul/doc/source/admin/client.rst

title

Zuul Client

Zuul Client

Zuul includes a simple command line client that may be used by administrators to affect Zuul's behavior while running. It must be run on a host that has access to the Gearman server (e.g., locally on the Zuul host).

Configuration

The client uses the same zuul.conf file as the server, and will look for it in the same locations if not specified on the command line.

Usage

The general options that apply to all subcommands are:

zuul --help

The following subcommands are supported:

Autohold

zuul autohold --help

Example:

zuul autohold --tenant openstack --project example_project --job example_job --reason "reason text" --count 1

Enqueue

zuul enqueue --help

Example:

zuul enqueue --tenant openstack --trigger gerrit --pipeline check --project example_project --change 12345,1

Note that the format of change id is <number>,<patchset>.

Enqueue-ref

zuul enqueue-ref --help

This command is provided to manually simulate a trigger from an external source. It can be useful for testing or replaying a trigger that is difficult or impossible to recreate at the source. The arguments to enqueue-ref will vary depending on the source and type of trigger. Some familiarity with the arguments emitted by gerrit update hooks such as patchset-created and ref-updated is recommended. Some examples of common operations are provided below.

Manual enqueue examples

It is common to have a release pipeline that listens for new tags coming from gerrit and performs a range of code packaging jobs. If there is an unexpected issue in the release jobs, the same tag can not be recreated in gerrit and the user must either tag a new release or request a manual re-triggering of the jobs. To re-trigger the jobs, pass the failed tag as the ref argument and set newrev to the change associated with the tag in the project repository (i.e. what you see from git show X.Y.Z):

zuul enqueue-ref --tenant openstack --trigger gerrit --pipeline release --project openstack/example_project --ref refs/tags/X.Y.Z --newrev abc123...

The command can also be used asynchronosly trigger a job in a periodic pipeline that would usually be run at a specific time by the timer driver. For example, the following command would trigger the periodic jobs against the current master branch top-of-tree for a project:

zuul enqueue-ref --tenant openstack --trigger timer --pipeline periodic --project openstack/example_project --ref refs/heads/master

Another common pipeline is a post queue listening for gerrit merge results. Triggering here is slightly more complicated as you wish to recreate the full ref-updated event from gerrit. For a new commit on master, the gerrit ref-updated trigger expresses "reset refs/heads/master for the project from oldrev to newrev" (newrev being the committed change). Thus to replay the event, you could git log in the project and take the current HEAD and the prior change, then enqueue the event:

NEW_REF=$(git rev-parse HEAD)
OLD_REF=$(git rev-parse HEAD~1)

zuul enqueue-ref --tenant openstack --trigger gerrit --pipeline post --project openstack/example_project --ref refs/heads/master --newrev $NEW_REF --oldrev $OLD_REF

Note that zero values for oldrev and newrev can indicate branch creation and deletion; the source code is the best reference for these more advanced operations.

Promote

zuul promote --help

Example:

zuul promote --tenant openstack --pipeline check --changes 12345,1 13336,3

Note that the format of changes id is <number>,<patchset>.

Show

zuul show --help

Example:

zuul show running-jobs