Would like to achieve queue step in build stage now through CI pipelines Example: pipelineA: execution 1====>running-----stepA passed execution 2====>running-----stepA not hit yet execution 3====>running-----stepA running execution 4====>running up to stepA, then wait until all 3 running execution (1-3) completed step A, then I can start stepA As per ENG: we can have a step which always executes that does the cleanup or have a ttl associated with the key.