GroundZero 0.9.0

Specs: pick the jobs each server or cluster runs, and run them as one.

Added

• Specs: pick the jobs a server or a cluster runs, each with its saved settings (/specs).
  • Steps are kept in pipeline order and checked when you save: the task exists, its settings are valid,
    and the images, config sets and profiles they point at exist. Secrets aren't allowed: they stay in
    profiles and config sets.
  • Text settings may use {host} or {hostname}, filled in per server. A Deploy OS step with no config
    set uses the cluster's.
  • A cluster's spec applies to every member, and a server's own spec overrides it.
  • With a spec, the pipeline's next step follows only the spec's jobs. The rest stay runnable by hand.
• Runs: run a server's spec as one, approved once with a typed phrase (run <spec> on <server>)
  after a preview.
  • The preview shows which steps run, which are skipped (done already, or not needed) and what the
    destructive ones change.
  • Steps start one after another and the run stops at the first failure. Each step still goes through
    its own checks, and the run's approval stands in for each step's own phrase.
  • Cluster runs (run cluster <name>) start every member at once; one failing doesn't stop the others.
  • In the web UI: a Specs page with an editor that shows what each picked job needs and which earlier
    job makes it, a spec bar and run panel on the host page, and runs on the cluster page.
  • On the command line: groundzero spec save|list|show|assign|delete and groundzero run-spec.