Buildkite Agent Job Queues
Each pipeline has the ability to separate jobs using queues. This allows you to isolate a set of jobs and/or agents, making sure they only run jobs that are intended to be assigned to them.
Common use cases for queues include deployment agents, and pools of agents for specific pipelines or teams.
The default queue
All agents include an extra default tag of
For example, the following empty query pattern matches the 6 agents running the
Setting an agent’s queue
An agent’s queue is configured using an agent tag, which can be changed using the command line flag, an environment variable, or the config file.
Agents can listen on a single queue or on multiple queues. You can add as many extra
queue tags as are required.
In the below example using the
--tags flag of the
buildkite-agent start command, two queues are specified which will result in the agent listening on both the
buildkite-agent start --tags "queue=building,queue=testing"
Targeting a queue
Just as you would target agents using a normal agent tag, you can target specific queues using
queue=name in your build pipeline query rules.
For example, the following build step matches only agents running the
deploy queue (and ignores the agents running the