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check for cancellation before apply confirmation #30979

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merged 1 commit into from May 2, 2022

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jbardin
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@jbardin jbardin commented May 2, 2022

When executing an apply with no plan, it's possible for a cancellation
to arrive during the final batch of provider operations, resulting in no
errors in the plan. The run context was next checked during the
confirmation for apply, but in the case of -auto-approve that
confirmation is skipped, resulting in the canceled plan being applied.

Make sure we directly check for cancellation before confirming the plan.

Fixes #30918

When executing an apply with no plan, it's possible for a cancellation
to arrive during the final batch of provider operations, resulting in no
errors in the plan. The run context was next checked during the
confirmation for apply, but in the case of -auto-approve that
confirmation is skipped, resulting in the canceled plan being applied.

Make sure we directly check for cancellation before confirming the plan.
@jbardin jbardin added the 1.2-backport If you add this label to a PR before merging, backport-assistant will open a new PR once merged label May 2, 2022
@jbardin jbardin requested a review from a team May 2, 2022 18:09
@jbardin jbardin self-assigned this May 2, 2022
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Fix makes sense to me, one question/worry about the test inline (which might be nothing).

testHookStopPlanApply = cancel
defer func() {
testHookStopPlanApply = nil
}()
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Is there any chance of this leaking into another parallel test and causing a mid-process cancel?

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@jbardin jbardin May 2, 2022

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Tests must be explicitly marked with t.Parallel() in order to run concurrently, so there should be no conflict there.

@jbardin jbardin merged commit 8079231 into main May 2, 2022
@jbardin jbardin deleted the jbardin/cancel-auto-approve branch May 2, 2022 21:14
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Reminder for the merging maintainer: if this is a user-visible change, please update the changelog on the appropriate release branch.

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crtl-c shows "graceful" shutdown message, then long pause, then terraform still destroys resources
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