I updated our racks to 20210310212746 this morning, and the next time I attempted to release encountered errors deloying the
agent defined in our application. The following message repeated ad infinitum:
2021-03-16T21:17:37Z system/ecs aws/ecs (service staging-polytomic-ServiceAgent-1U8DZCW31U5JJ-Service-Hp68oJVjAcje) was unable to place a task because no container instance met all of its requirements. The closest matching (container-instance 67f69e6c1f1b490a9044a448863a6bc0) is already using a port required by your task. For more information, see the Troubleshooting section of the Amazon ECS Developer Guide.
After downgrading the rack to
20210217150446 (the release we were previously on) the promotion completes successfully.
I tried the interim releases, as well, and
20210217150446 seems to be the last release when the agent will properly deploy.
Any suggestions on what might be causing this, or where to start debugging?