kubelet配置详解及简单实例

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-hardstring	memory.available<4Gi,<br/> nodefs.available<20Gi,<br/> imagefs.available<5Gi
–eviction-max-pod-grace-periodint32	30
–eviction-minimum-reclaimstring	memory.available=500Mi,<br/> nodefs.available=2Gi,,<br/> imagefs.available=2Gi
–eviction-pressure-transition-periodduration	5m0s
–eviction-soft string	memory.available<8Gi,<br/> nodefs.available<100Gi,<br/> imagefs.available<20Gi
–eviction-soft-grace-periodstring	memory.available=30s,<br/> nodefs.available=2m,<br/> imagefs.available=2m
–experimental-fail-swap-on	+
–experimental-kernel-memcg-notification	+
–feature-gates string	AllAlpha=false
–file-check-frequencyduration	20s
–hairpin-mode string	promiscuous-bridge
–healthz-port int32	10248
–image-gc-high-thresholdint32	60
–image-gc-low-thresholdint32	40
–image-pull-progress-deadline duration	2m0s
–kube-api-qps int32	5
–kube-reserved mapStringString	cpu=200m,memory=16G
–kubeconfigstring	/var/lib/kubelet/kubeconfig
–max-pods int32	50
–minimum-image-ttl-duration duration	1h
–network-pluginstring	cni
–pod-infra-container-imagestring	vivo.registry.com/google_containers/pause-amd64:3.0
–pod-manifest-pathstring	/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