A queued deployment whose commit no longer validates (for example one
queued before an upgrade) made the job dispatch throw. The row stayed
in_progress, blocked every later deployment of the application, and
stopped the queue loop. Such a row is now marked failed with a log
entry and a failure notification, and the next queued deployment
starts.
An exception after the new container passed its health check (for
example in additional destinations, the next-deployment loop, or
notifications) made failed() remove the new container, which could be
the only one running. failed() now keeps a healthy new container, and
errors in the steps after a status change are logged without flipping
a finished deployment to failed.
Since rolling updates also run for applications with a custom internal
name (when consistent container names are off), the new container gets
a generated name. failed() still kept the new container whenever a
custom internal name was set, so an exception after the new container
started (for example an SSH or docker inspect error during the health
check) left it running next to the old version with the same proxy
labels.
failed() now keeps the container only for consistent container names
and pull request deployments, the same cases that skip rolling updates.
Andras Bacsai