Using spredr
Releases and going back
Every deploy is a release: v1, v2, v3. Going back to an earlier one uses its image as it is, without building again, so it takes seconds.
terminal
$spredr releases
$spredr rollback v3
spredr rebuildBuilds the same commit again from scratch and deploys it.
spredr stopTurns a service off. Its releases, variables and domains stay.
spredr startTurns it back on with its last healthy release.
spredr rmDeletes a service. It asks you to type its name to confirm.