Jakob L. Kreuze 9c70c460a0 machine: Implement 'roll-back-machine'. ...

* gnu/machine.scm (roll-back-machine, &deploy-error, deploy-error?)
(deploy-error-should-roll-back)
(deploy-error-captured-args): New variable.
* gnu/machine/ssh.scm (roll-back-managed-host): New variable.
* guix/scripts/deploy.scm (guix-deploy): Roll-back systems when a
deployment fails.

2019-08-15 07:43:09 -04:00

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