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design: clarify when it is correct to report steady #239

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lucab opened this issue Mar 2, 2020 · 1 comment
Open

design: clarify when it is correct to report steady #239

lucab opened this issue Mar 2, 2020 · 1 comment
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@lucab
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lucab commented Mar 2, 2020 •
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Followup from #233 (comment).

For context, the fleet_lock requires us to:

  • lock a semaphore slot before finalizing/rebooting (/pre-reboot)
  • unlock the semaphore slot after reboot (/report-steady)

In #233, @jlebon had some concerns that we are currently reporting steady quite early, i.e. as soon as the agent is properly initialized. His suggestion was to defer this action a bit more, and wait for a successful Cincinnati check too.
@lucab lucab mentioned this issue Mar 2, 2020
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lucab commented Mar 3, 2020

One more thing that I realized when drawing #240.

When updates.enabled = false the agent skips straight from StartState to EndState. That means that any fleet_lock configuration is effectively ignored and /report-stedy is never hit. Is this behavior correct?

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