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Agent Fleet

v0.12.4

A workspace on an ecs-ec2 deployment could not start after upgrading to 0.12.3. This release fixes that; upgrade straight to it.

Fixed

Section titled “Fixed”
  • On ecs-ec2, upgrading to 0.12.3 left every existing workspace unable to start, with Availability Zone Rebalancing does not support maximumPercent <= 100 %. 0.12.3 began pinning each workspace’s service to one task at a time, which Amazon ECS refuses while Availability Zone rebalancing is switched on for that service. Rebalancing is decided when a service is created, so only workspaces that existed before the upgrade were affected — a workspace created on 0.12.3 starts normally. Rebalancing is now switched off explicitly whenever the service is updated, which also matches how these services work: a workspace’s task is pinned to the machine holding its home disk, so there is no other Availability Zone for it to move to.

Upgrade notes

Section titled “Upgrade notes”

Nothing to do beyond deploying: each workspace’s service is corrected the next time it starts. If you upgraded to 0.12.3 and worked around this by hand, that stays valid.