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Drop dynamic run-time reconfiguration #1847

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merged 1 commit into from
Sep 3, 2024

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marquiz
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@marquiz marquiz commented Aug 19, 2024

Simplify the code and reduce possible error scenarios by dropping fsnotify-based reconfiguration from nfd-master and nfd-worker. Also eliminates repeated re-configuration in scenarios where kubelet continuosly touches the (every minute) mounted file (configmap) on the filesystem.

Also modifies the Helm and kustomize deployments so that nfd-master, nfd-worker and nfd-topology-updater pods are restarted on configmap updates. In kustomize, the slght downside of this is the name of the config map(s) depends on the content, so every time a user customizes the config data, the old unused configmap will be left and must be garbage-collected manually.

Fixes #1846

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[APPROVALNOTIFIER] This PR is APPROVED

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@k8s-ci-robot k8s-ci-robot added approved Indicates a PR has been approved by an approver from all required OWNERS files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. labels Aug 19, 2024
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marquiz commented Aug 19, 2024

Waiting for feedback
/hold

@k8s-ci-robot k8s-ci-robot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Aug 19, 2024
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@k8s-ci-robot k8s-ci-robot added the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Aug 19, 2024
@marquiz marquiz force-pushed the devel/drop-fsnotify branch 6 times, most recently from b7b540f to 939a644 Compare August 19, 2024 14:21
@marquiz marquiz mentioned this pull request Aug 19, 2024
@k8s-ci-robot k8s-ci-robot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Aug 20, 2024
@marquiz marquiz force-pushed the devel/drop-fsnotify branch from 939a644 to 5c53e98 Compare August 21, 2024 05:17
@k8s-ci-robot k8s-ci-robot removed the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Aug 21, 2024
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Thanks @marquiz. Left some minor comments below

docs/usage/nfd-worker.md Outdated Show resolved Hide resolved
docs/usage/nfd-worker.md Outdated Show resolved Hide resolved
Simplify the code and reduce possible error scenarios by dropping
fsnotify-based reconfiguration from nfd-master and nfd-worker. Also
eliminates repeated re-configuration in scenarios where kubelet
continuosly touches the (every minute) mounted file (configmap) on the
filesystem.

Also modifies the Helm and kustomize deployments so that nfd-master,
nfd-worker and nfd-topology-updater pods are restarted on configmap
updates. In kustomize, the slght downside of this is the name of the
config map(s) depends on the content, so every time a user customizes
the config data, the old unused configmap will be left and must be
garbage-collected manually.
@marquiz marquiz force-pushed the devel/drop-fsnotify branch from 5c53e98 to 02b6b73 Compare August 21, 2024 09:46
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marquiz commented Aug 21, 2024

/retest

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TessaIO commented Aug 21, 2024

It was a nice feature, sadge..
/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Aug 21, 2024
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LGTM label has been added.

Git tree hash: 9dd19398742a801b3ed2f5cd5dd59f5d649ea5ff

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I like the change, +1 from me i guess we can remove hold label @marquiz

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marquiz commented Sep 3, 2024

Thanks @PiotrProkop for taking a look at this
/unhold

@k8s-ci-robot k8s-ci-robot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Sep 3, 2024
@k8s-ci-robot k8s-ci-robot merged commit 0fd0934 into kubernetes-sigs:master Sep 3, 2024
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@marquiz marquiz deleted the devel/drop-fsnotify branch September 3, 2024 10:15
@marquiz marquiz mentioned this pull request Dec 12, 2024
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Drop run-time dynamic configuration updates
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