kubelet配置详解及简单实例

ULUNH • 2025年1月1日 16:37:02 • Linux

kubelet配置详解及简单实例

摘要: 这两天试着重新去理解kubelet的每一个配置，并整理出我们最有可能要配置的项作为我们上生产的要考虑的kubelet最佳配置。

author: garnett.wang@gmail.com

kubernetes version: 1.6.2

Kubelet Configurations We Should Care About

下面是我梳理的，我认为必须关注的flag。

flag value –address 0.0.0.0 –allow-privileged false –cadvisor-port int32 4194 –cgroup-driver string cgroupfs –cluster-dns stringSlice 10.0.0.10 //todo –cluster-domain string caas.vivo.com –cni-bin-dir string /opt/cni/bin –cni-conf-dir string /etc/cni/net.d –docker-endpoint string unix:///var/run/docker.sock –eviction-hard string memory.available<4Gi, nodefs.available<20Gi, imagefs.available<5Gi –eviction-max-pod-grace-period int32 30 –eviction-minimum-reclaim string memory.available=500Mi, nodefs.available=2Gi,, imagefs.available=2Gi –eviction-pressure-transition-periodduration 5m0s –eviction-soft string memory.available<8Gi, nodefs.available<100Gi, imagefs.available<20Gi –eviction-soft-grace-period string memory.available=30s, nodefs.available=2m, imagefs.available=2m –experimental-fail-swap-on + –experimental-kernel-memcg-notification + –feature-gates string AllAlpha=false –file-check-frequency duration 20s –hairpin-mode string promiscuous-bridge –healthz-port int32 10248 –image-gc-high-threshold int32 60 –image-gc-low-threshold int32 40 –image-pull-progress-deadline duration 2m0s –kube-api-qps int32 5 –kube-reserved mapStringString cpu=200m,memory=16G –kubeconfig string /var/lib/kubelet/kubeconfig –max-pods int32 50 –minimum-image-ttl-duration duration 1h –network-plugin string cni –pod-infra-container-image string vivo.registry.com/google_containers/pause-amd64:3.0 –pod-manifest-path string /var/lib/kubelet/pod_manifest –port int32 10250 –protect-kernel-defaults + –read-only-port int32 10255 –require-kubeconfig + –root-dir string /var/lib/kubelet –runtime-request-timeout duration 2m0s –serialize-image-pulls false –sync-frequency duration 1m0s –system-reserved mapStringString cpu=100m,memory=32G –volume-plugin-dir string /usr/libexec/kubernetes/kubelet-plugins/volume/exec/ –volume-stats-agg-period duration 1m0s

下面是我最终梳理的，认为需要真正显示设置的flag，如下：

/usr/bin/kubelet —address=0.0.0.0

--port=10250

--allow-privileged=false

--cluster-dns=10.0.0.1

--cluster-domain=caas.vivo.com

--max-pods=50

--network-plugin=cni

--require-kubeconfig

--pod-manifest-path=/etc/kubelet.d/

--pod-infra-container-image=vivo.registry.com/google_containers/pause-amd64:3.0

--eviction-hard=memory.available<4Gi,nodefs.available<20Gi,imagefs.available<5Gi

--eviction-max-pod-grace-period=30

--eviction-minimum-reclaim=memory.available=500Mi,nodefs.available=2Gi,imagefs.available=2Gi

--eviction-pressure-transition-period=5m0s

--eviction-soft=memory.available<8Gi,nodefs.available<100Gi,imagefs.available<20Gi

--eviction-soft-grace-period=memory.available=30s,nodefs.available=2m,imagefs.available=2m

--experimental-kernel-memcg-notification

--experimental-fail-swap-on

--system-reserved=cpu=100m,memory=8G

--kube-reserved=cpu=200m,memory=16G

--hairpin-mode=promiscuous-bridge

--image-gc-high-threshold=60

--image-gc-low-threshold=40

--serialize-image-pulls=false

--protect-kernel-defaults

--feature-gates=AllAlpha=false

感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！

原文链接：https://my.oschina.net/jxcdwangtao/blog/891960

原创文章，作者：ULUNH，如若转载，请注明出处：http://www.wangzhanshi.com/n/8770.html

kubelet配置详解及简单实例

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