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Don't try to uncordon on startup in Queue Processor mode #743

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merged 1 commit into from
Dec 22, 2022

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johngmyers
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Issue #, if available:

N/A

Description of changes:

The documentation states:

The Queue Processor Mode does not allow for fine-grained configuration of which events are handled through helm configuration keys.

The .Values.enableScheduledEventDraining helm configuration key does control one aspect of NTH in Queue Processor mode: whether upon startup it attempts to uncordon the node it is running on.

This appears to be a bug. There is no logical reason for NTH to uncordon the node it is running on when not in IMDS mode.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

@johngmyers johngmyers requested a review from a team as a code owner December 10, 2022 05:53
@johngmyers
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@peteroruba you missed this one.

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@snay2 snay2 left a comment

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Thanks for the fix!

This will also be important when we remove PodSecurityPolicy (#638), because we want Queue Processor mode to be able to run in a Baseline or Restricted namespace. One thing that would require NTH to run in a Privileged namespace is filesystem access, and this feature tries to read /proc/uptime. That will still be necessary for IMDS mode, but QP mode doesn't need it. Thanks for making that actually true. :)

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2 participants