Add a jitter to logrotate

[robinschneider]

How to categorize this PR?

/area logging
/kind enhancement

What this PR does / why we need it:
Currently all nodes run logrotate at 0:00 UTC at the same time, which causes high capacity utilization.
With the current configuration, it runs 144 times a day but only rotates the logs at 0:00 UTC, which is pointless.
This PR changes the it in order to run once a day with a jitter of 4 hours.

Which issue(s) this PR fixes:
ref gardener#15149

Special notes for your reviewer:

Release note:

[ske-prow]

@robinschneider: The label(s) area/logging cannot be applied, because the repository doesn't have them.

Details

In response to this:

How to categorize this PR?

/area logging
/kind enhancement

What this PR does / why we need it:
Currently all nodes run logrotate at 0:00 UTC at the same time, which causes high capacity utilization.
With the current configuration, it runs 144 times a day but only rotates the logs at 0:00 UTC, which is pointless.
This PR changes the it in order to run once a day with a jitter of 4 hours.

Which issue(s) this PR fixes:
No issue created

Special notes for your reviewer:

Release note:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[robinschneider]

/test pull-gardener-integration

[robinschneider]

I have run these tests locally without any issues

❯ make test-integration
curl -Lo hack/tools/bin/darwin-arm64/setup-envtest https://github.com/kubernetes-sigs/controller-runtime/releases/download/v0.23.3/setup-envtest-darwin-arm64
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100 9899k  100 9899k    0     0  8913k      0  0:00:01  0:00:01 --:--:-- 8913k
chmod +x hack/tools/bin/darwin-arm64/setup-envtest
curl -sSfL https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-4 | HELM_INSTALL_DIR=hack/tools/bin/darwin-arm64 USE_SUDO=false bash -s -- --version v4.2.1
Helm v4.2.1 is available. Changing from version v3.20.2.
Downloading https://get.helm.sh/helm-v4.2.1-darwin-arm64.tar.gz
Verifying checksum... Done.
Preparing to install helm into hack/tools/bin/darwin-arm64
helm installed into hack/tools/bin/darwin-arm64/helm
> Installing envtest tools@1.33 with setup-envtest if necessary
using envtest tools installed at '/Users/schneiderro/Library/Application Support/io.kubebuilder.envtest/k8s/1.33.0-darwin-arm64'
> Integration Tests
ok      github.com/gardener/gardener/test/integration/apiserver/admissionplugins/shootvalidator 15.346s
ok      github.com/gardener/gardener/test/integration/controllermanager/bastion 25.731s
ok      github.com/gardener/gardener/test/integration/controllermanager/certificatesigningrequest       14.382s
ok      github.com/gardener/gardener/test/integration/controllermanager/cloudprofile    20.412s
ok      github.com/gardener/gardener/test/integration/controllermanager/controllerdeployment    15.555s
ok      github.com/gardener/gardener/test/integration/controllermanager/controllerregistration/controllerinstallation/seed      46.337s
ok      github.com/gardener/gardener/test/integration/controllermanager/controllerregistration/controllerinstallation/shoot     23.635s
ok      github.com/gardener/gardener/test/integration/controllermanager/controllerregistration/extensionclusterrole     19.022s
ok      github.com/gardener/gardener/test/integration/controllermanager/credentialsbinding      28.936s
ok      github.com/gardener/gardener/test/integration/controllermanager/event   26.206s
ok      github.com/gardener/gardener/test/integration/controllermanager/exposureclass   17.712s
ok      github.com/gardener/gardener/test/integration/controllermanager/gardenletlifecycle      36.720s
ok      github.com/gardener/gardener/test/integration/controllermanager/managedseedset  23.480s
ok      github.com/gardener/gardener/test/integration/controllermanager/namespacedcloudprofile  51.704s
ok      github.com/gardener/gardener/test/integration/controllermanager/project/activity        65.688s
ok      github.com/gardener/gardener/test/integration/controllermanager/project/project 64.086s
ok      github.com/gardener/gardener/test/integration/controllermanager/project/resourcequota   43.249s
ok      github.com/gardener/gardener/test/integration/controllermanager/project/stale   62.111s
ok      github.com/gardener/gardener/test/integration/controllermanager/quota   19.762s
ok      github.com/gardener/gardener/test/integration/controllermanager/secretbinding   26.879s
ok      github.com/gardener/gardener/test/integration/controllermanager/seed/backupbucketscheck 9.550s
ok      github.com/gardener/gardener/test/integration/controllermanager/seed/extensionscheck    15.404s
ok      github.com/gardener/gardener/test/integration/controllermanager/seed/reference  32.953s
ok      github.com/gardener/gardener/test/integration/controllermanager/seed/secrets    9.650s
ok      github.com/gardener/gardener/test/integration/controllermanager/shoot/conditions        19.668s
ok      github.com/gardener/gardener/test/integration/controllermanager/shoot/hibernation       11.404s
ok      github.com/gardener/gardener/test/integration/controllermanager/shoot/maintenance       95.107s
ok      github.com/gardener/gardener/test/integration/controllermanager/shoot/migration 13.137s
ok      github.com/gardener/gardener/test/integration/controllermanager/shoot/quota     20.087s
ok      github.com/gardener/gardener/test/integration/controllermanager/shoot/reference 74.604s
ok      github.com/gardener/gardener/test/integration/controllermanager/shoot/retry     7.301s
ok      github.com/gardener/gardener/test/integration/controllermanager/shoot/statuslabel       11.828s
ok      github.com/gardener/gardener/test/integration/controllermanager/shootstate      24.070s
ok      github.com/gardener/gardener/test/integration/envtest   8.055s
ok      github.com/gardener/gardener/test/integration/extensions/controller/backupbucket        27.886s
ok      github.com/gardener/gardener/test/integration/extensions/controller/backupentry 43.609s
ok      github.com/gardener/gardener/test/integration/extensions/controller/heartbeat   5.997s
ok      github.com/gardener/gardener/test/integration/extensions/webhook/certificates   9.520s
ok      github.com/gardener/gardener/test/integration/extensions/webhook/cloudprovider  22.860s
ok      github.com/gardener/gardener/test/integration/gardenlet/backupbucket    11.095s
ok      github.com/gardener/gardener/test/integration/gardenlet/backupentry     19.707s
ok      github.com/gardener/gardener/test/integration/gardenlet/bastion 12.553s
ok      github.com/gardener/gardener/test/integration/gardenlet/controllerinstallation/care     14.765s
ok      github.com/gardener/gardener/test/integration/gardenlet/controllerinstallation/controllerinstallation   30.185s
ok      github.com/gardener/gardener/test/integration/gardenlet/controllerinstallation/required 9.609s
ok      github.com/gardener/gardener/test/integration/gardenlet/gardenlet       9.386s
ok      github.com/gardener/gardener/test/integration/gardenlet/managedseed     10.045s
ok      github.com/gardener/gardener/test/integration/gardenlet/networkpolicy   50.828s
ok      github.com/gardener/gardener/test/integration/gardenlet/seed/care       18.236s
ok      github.com/gardener/gardener/test/integration/gardenlet/seed/lease      21.063s
ok      github.com/gardener/gardener/test/integration/gardenlet/seed/seed       80.232s
ok      github.com/gardener/gardener/test/integration/gardenlet/shoot/care      23.842s
ok      github.com/gardener/gardener/test/integration/gardenlet/shoot/lease     21.617s
ok      github.com/gardener/gardener/test/integration/gardenlet/shoot/state     44.021s
ok      github.com/gardener/gardener/test/integration/gardenlet/shoot/status    18.285s
ok      github.com/gardener/gardener/test/integration/gardenlet/tokenrequestor/workloadidentity 16.339s
ok      github.com/gardener/gardener/test/integration/gardenlet/vpaevictionrequirements 11.168s
ok      github.com/gardener/gardener/test/integration/nodeagent/certificate     13.689s
ok      github.com/gardener/gardener/test/integration/nodeagent/healthcheck     10.650s
ok      github.com/gardener/gardener/test/integration/nodeagent/lease   11.074s
ok      github.com/gardener/gardener/test/integration/nodeagent/node    10.280s
ok      github.com/gardener/gardener/test/integration/nodeagent/operatingsystemconfig   55.280s
ok      github.com/gardener/gardener/test/integration/nodeagent/systemdunitcheck        24.215s
ok      github.com/gardener/gardener/test/integration/nodeagent/token   12.045s
ok      github.com/gardener/gardener/test/integration/operator/controllerregistrar      17.131s
ok      github.com/gardener/gardener/test/integration/operator/extension/care   10.244s
ok      github.com/gardener/gardener/test/integration/operator/extension/extension      18.870s
ok      github.com/gardener/gardener/test/integration/operator/extension/required/runtime       16.971s
ok      github.com/gardener/gardener/test/integration/operator/extension/required/virtual       31.662s
ok      github.com/gardener/gardener/test/integration/operator/garden/care      17.743s
ok      github.com/gardener/gardener/test/integration/operator/garden/garden    23.387s
ok      github.com/gardener/gardener/test/integration/operator/garden/reference 15.380s
ok      github.com/gardener/gardener/test/integration/operator/gardenlet        19.661s
ok      github.com/gardener/gardener/test/integration/operator/virtual/access   25.987s
ok      github.com/gardener/gardener/test/integration/operator/virtual/cluster  8.192s
ok      github.com/gardener/gardener/test/integration/resourcemanager/crddeletionprotection     13.910s
ok      github.com/gardener/gardener/test/integration/resourcemanager/csrapprover       16.455s
ok      github.com/gardener/gardener/test/integration/resourcemanager/garbagecollector  8.088s
ok      github.com/gardener/gardener/test/integration/resourcemanager/health    41.421s
ok      github.com/gardener/gardener/test/integration/resourcemanager/highavailabilityconfig    18.860s
ok      github.com/gardener/gardener/test/integration/resourcemanager/istioclusterconfiguration 13.021s
ok      github.com/gardener/gardener/test/integration/resourcemanager/kubernetesservicehost     5.724s
ok      github.com/gardener/gardener/test/integration/resourcemanager/managedresource   92.697s
ok      github.com/gardener/gardener/test/integration/resourcemanager/networkpolicy     112.693s
ok      github.com/gardener/gardener/test/integration/resourcemanager/node/agentreconciliationdelay     10.650s
ok      github.com/gardener/gardener/test/integration/resourcemanager/node/criticalcomponents   26.202s
ok      github.com/gardener/gardener/test/integration/resourcemanager/node/highavailabilityconfig       6.166s
ok      github.com/gardener/gardener/test/integration/resourcemanager/nodeagentauthorizer       9.889s
ok      github.com/gardener/gardener/test/integration/resourcemanager/podkubeapiserverloadbalancing     5.422s
ok      github.com/gardener/gardener/test/integration/resourcemanager/podschedulername  4.954s
ok      github.com/gardener/gardener/test/integration/resourcemanager/podtopologyspreadconstraints      4.735s
ok      github.com/gardener/gardener/test/integration/resourcemanager/seccompprofile    4.866s
ok      github.com/gardener/gardener/test/integration/resourcemanager/systemcomponentsconfig    5.905s
ok      github.com/gardener/gardener/test/integration/resourcemanager/tokenrequestor    25.880s
ok      github.com/gardener/gardener/test/integration/resourcemanager/vpainplaceupdates 7.493s
ok      github.com/gardener/gardener/test/integration/scheduler/shoot   50.921s

[ske-prow]

LGTM label has been added.

Details

Git tree hash: 77376d243e21d90cc1d89bb53a2bc175037552cd

[ske-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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