Limit number of audit entries

[spowelljr]

Closes #14543

• Added feature to cap amount of audit entries
  • Once limit is passed, the oldest entries are trimmed
  • By default limits audit entries to 1,000 lines
• Added config option MaxAuditEntries
  • Allows to customize the max amount of audit entries to retain
  • minikube config set MaxAuditEntries <number>
  • Setting to 0 will set to unlimited audit entries
• Added test to ensure cap and MaxAuditEntries are working

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: medyagh, spowelljr

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[spowelljr]

/ok-to-test

[minikube-pr-bot]

kvm2 driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 14695) |
+----------------+----------+---------------------+
| minikube start | 56.2s    | 57.1s               |
| enable ingress | 29.4s    | 29.1s               |
+----------------+----------+---------------------+

Times for minikube start: 56.4s 56.8s 55.6s 56.3s 55.8s
Times for minikube (PR 14695) start: 57.6s 56.6s 58.9s 56.4s 56.1s

Times for minikube ingress: 28.7s 27.7s 30.2s 31.2s 29.2s
Times for minikube (PR 14695) ingress: 29.2s 28.7s 29.7s 28.2s 29.7s

docker driver with docker runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 14695) |
+----------------+----------+---------------------+
| minikube start | 29.6s    | 29.6s               |
| enable ingress | 35.1s    | 22.2s               |
+----------------+----------+---------------------+

Times for minikube start: 29.6s 30.8s 29.2s 30.0s 28.8s
Times for minikube (PR 14695) start: 30.4s 28.6s 29.3s 30.9s 28.9s

Times for minikube ingress: 24.0s 21.5s 83.0s 23.5s 23.5s
Times for minikube (PR 14695) ingress: 22.0s 23.0s 22.1s 21.5s 22.5s

docker driver with containerd runtime

+----------------+----------+---------------------+
|    COMMAND     | MINIKUBE | MINIKUBE (PR 14695) |
+----------------+----------+---------------------+
| minikube start | 24.8s    | 24.6s               |
| enable ingress | 27.0s    | 27.0s               |
+----------------+----------+---------------------+

Times for minikube start: 24.6s 25.4s 24.5s 24.8s 24.6s
Times for minikube (PR 14695) start: 24.5s 24.5s 24.6s 24.4s 25.0s

Times for minikube ingress: 27.0s 27.0s 27.1s 27.1s 27.0s
Times for minikube (PR 14695) ingress: 27.0s 27.0s 27.0s 27.0s 27.0s

[minikube-pr-bot]

These are the flake rates of all failed tests.

Environment	Failed Tests	Flake Rate (%)
Hyperkit_macOS	TestPause/serial/Start (gopogh)	0.62 (chart)
Docker_Linux_containerd	TestFunctional/serial/LogsFileCmd (gopogh)	5.88 (chart)
Docker_Windows	TestNetworkPlugins/group/enable-default-cni/DNS (gopogh)	39.19 (chart)
KVM_Linux	TestMultiNode/serial/RestartMultiNode (gopogh)	42.60 (chart)
Docker_Windows	TestNetworkPlugins/group/kubenet/DNS (gopogh)	46.58 (chart)
Docker_Windows	TestKubernetesUpgrade (gopogh)	55.15 (chart)
Docker_Windows	TestNetworkPlugins/group/false/DNS (gopogh)	56.76 (chart)
Docker_Windows	TestNetworkPlugins/group/kindnet/Start (gopogh)	60.00 (chart)
Docker_Linux	TestNetworkPlugins/group/calico/Start (gopogh)	74.84 (chart)
Docker_Linux_containerd	TestNetworkPlugins/group/calico/Start (gopogh)	75.00 (chart)
Docker_Linux_containerd	TestNetworkPlugins/group/enable-default-cni/DNS (gopogh)	78.74 (chart)
Docker_Linux_containerd	TestNetworkPlugins/group/bridge/DNS (gopogh)	80.00 (chart)
Docker_Linux	TestNetworkPlugins/group/bridge/DNS (gopogh)	88.05 (chart)
Docker_Linux	TestNetworkPlugins/group/enable-default-cni/DNS (gopogh)	88.68 (chart)
Docker_Linux	TestNetworkPlugins/group/kubenet/DNS (gopogh)	90.57 (chart)
Docker_Linux	TestNetworkPlugins/group/false/DNS (gopogh)	91.19 (chart)
Docker_Windows	TestNetworkPlugins/group/calico/Start (gopogh)	92.12 (chart)
Hyper-V_Windows	TestNoKubernetes/serial/StartWithStopK8s (gopogh)	97.67 (chart)
Docker_Linux_containerd	TestKubernetesUpgrade (gopogh)	100.00 (chart)
Docker_macOS	TestDownloadOnly/v1.16.0/preload-exists (gopogh)	100.00 (chart)
Docker_macOS	TestIngressAddonLegacy/serial/ValidateIngressAddonActivation (gopogh)	100.00 (chart)
Docker_macOS	TestIngressAddonLegacy/serial/ValidateIngressAddons (gopogh)	100.00 (chart)
Docker_macOS	TestIngressAddonLegacy/serial/ValidateIngressDNSAddonActivation (gopogh)	100.00 (chart)
Docker_macOS	TestIngressAddonLegacy/StartLegacyK8sCluster (gopogh)	100.00 (chart)
Docker_macOS	TestKubernetesUpgrade (gopogh)	100.00 (chart)
Docker_macOS	TestMissingContainerUpgrade (gopogh)	100.00 (chart)
Docker_macOS	TestNetworkPlugins/group/kubenet/HairPin (gopogh)	100.00 (chart)
Docker_macOS	TestPause/serial/VerifyStatus (gopogh)	100.00 (chart)
Docker_macOS	TestPreload (gopogh)	100.00 (chart)
Docker_macOS	TestRunningBinaryUpgrade (gopogh)	100.00 (chart)
More tests...	Continued...

Too many tests failed - See test logs for more details.

To see the flake rates of all tests by environment, click here.