Kubernetes
|NO.Z.00034|——————————|^^ 部署 ^^|——|KuberNetes&二进制部署.V12|5台Server|---------------------------------
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[CloudNative：KuberNetes&二进制部署.V12] [Applications.KuberNetes][|DevOps|k8s|**5节点**|二进制1.20|kubernetes-node组件配置|——|kubelet|kube-proxy|]
一、node节点组件配置
### --- 复制证书 ~~~ 从k8s-master01节点复制证书到node节点
### --- 进入证书目录下 [root@k8s-master01 bootstrap]# cd /etc/kubernetes/
### --- 将需要的证书复制到node节点下
[root@k8s-master01 kubernetes]# for NODE in k8s-master02 k8s-master03 k8s-node01 k8s-node02; do
ssh $NODE mkdir -p /etc/kubernetes/pki /etc/etcd/ssl /etc/etcd/ssl
for FILE in etcd-ca.pem etcd.pem etcd-key.pem; do
scp /etc/etcd/ssl/$FILE $NODE:/etc/etcd/ssl/
done
for FILE in pki/ca.pem pki/ca-key.pem pki/front-proxy-ca.pem bootstrap-kubelet.kubeconfig; do
scp /etc/kubernetes/$FILE $NODE:/etc/kubernetes/${FILE}
done
done
~~~ 注：输出结果：
etcd-ca.pem 100% 1367 31.4KB/s 00:00
etcd.pem 100% 1509 767.7KB/s 00:00
etcd-key.pem 100% 1679 629.8KB/s 00:00
ca.pem 100% 1411 316.4KB/s 00:00
ca-key.pem 100% 1679 953.2KB/s 00:00
front-proxy-ca.pem 100% 1143 308.3KB/s 00:00
bootstrap-kubelet.kubeconfig 100% 2299 517.1KB/s 00:00
etcd-ca.pem 100% 1367 1.0MB/s 00:00
etcd.pem 100% 1509 886.9KB/s 00:00
etcd-key.pem 100% 1679 940.7KB/s 00:00
ca.pem 100% 1411 500.9KB/s 00:00
ca-key.pem 100% 1679 505.2KB/s 00:00
front-proxy-ca.pem 100% 1143 351.2KB/s 00:00
bootstrap-kubelet.kubeconfig 二、kubelet配置### --- 所有node节点创建配置需要目录 ~~~ # 创建node节点部署目录 [root@k8s-master01 kubernetes]# mkdir -p /var/lib/kubelet /var/log/kubernetes /etc/systemd/system/kubelet.service.d /etc/kubernetes/manifests/
### --- 所有node节点配置kubelet service ~~~ # 创建kubelet.service配置文件 [root@k8s-master01 ~]# vim /usr/lib/systemd/system/kubelet.service [Unit] Description=Kubernetes Kubelet Documentation=https://github.com/kubernetes/kubernetes After=docker.service Requires=docker.service [Service] ExecStart=/usr/local/bin/kubelet Restart=always StartLimitInterval=0 RestartSec=10 [Install] WantedBy=multi-user.target
### --- 所有节点10-kubelet.conf配置文件下配置kubelet.service参数 ~~~ # 所有节点10-kubelet.conf下配置kubelet.service参数 [root@k8s-master01 ~]# vim /etc/systemd/system/kubelet.service.d/10-kubelet.conf [Service] Environment="KUBELET_KUBECONFIG_ARGS=--bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.kubeconfig --kubeconfig=/etc/kubernetes/kubelet.kubeconfig" Environment="KUBELET_SYSTEM_ARGS=--network-plugin=cni --cni-conf-dir=/etc/cni/net.d --cni-bin-dir=/opt/cni/bin" Environment="KUBELET_CONFIG_ARGS=--config=/etc/kubernetes/kubelet-conf.yml --pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google_containers/pause-amd64:3.2" Environment="KUBELET_EXTRA_ARGS=--node-labels=node.kubernetes.io/node='' " ExecStart= ExecStart=/usr/local/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_SYSTEM_ARGS $KUBELET_EXTRA_ARGS
### --- 创建kubelet配置文件 ~~~ # 注意：如果更改了k8s的service网段，需要更改kubelet-conf.yml 的clusterDNS:配置， ~~~ # 改成k8s Service网段的第十个地址，比如10.96.0.10
~~~ # 创建kubelet.conf配置文件
[root@k8s-master01 bootstrap]# vim /etc/kubernetes/kubelet-conf.yml
apiVersion: kubelet.config.k8s.io/v1beta1
kind: KubeletConfiguration
address: 0.0.0.0
port: 10250
readOnlyPort: 10255
authentication:
anonymous:
enabled: false
webhook:
cacheTTL: 2m0s
enabled: true
x509:
clientCAFile: /etc/kubernetes/pki/ca.pem
authorization:
mode: Webhook
webhook:
cacheAuthorizedTTL: 5m0s
cacheUnauthorizedTTL: 30s
cgroupDriver: systemd
cgroupsPerQOS: true
clusterDNS:
- 10.96.0.10
clusterDomain: cluster.local
containerLogMaxFiles: 5
containerLogMaxSize: 10Mi
contentType: application/vnd.kubernetes.protobuf
cpuCFSQuota: true
cpuManagerPolicy: none
cpuManagerReconcilePeriod: 10s
enableControllerAttachDetach: true
enableDebuggingHandlers: true
enforceNodeAllocatable:
- pods
eventBurst: 10
eventRecordQPS: 5
evictionHard:
imagefs.available: 15%
memory.available: 100Mi
nodefs.available: 10%
nodefs.inodesFree: 5%
evictionPressureTransitionPeriod: 5m0s
failSwapOn: true
fileCheckFrequency: 20s
hairpinMode: promiscuous-bridge
healthzBindAddress: 127.0.0.1
healthzPort: 10248
httpCheckFrequency: 20s
imageGCHighThresholdPercent: 85
imageGCLowThresholdPercent: 80
imageMinimumGCAge: 2m0s
iptablesDropBit: 15
iptablesMasqueradeBit: 14
kubeAPIBurst: 10
kubeAPIQPS: 5
makeIPTablesUtilChains: true
maxOpenFiles: 1000000
maxPods: 110
nodeStatusUpdateFrequency: 10s
oomScoreAdj: -999
podPidsLimit: -1
registryBurst: 10
registryPullQPS: 5
resolvConf: /etc/resolv.conf
rotateCertificates: true
runtimeRequestTimeout: 2m0s
serializeImagePulls: true
staticPodPath: /etc/kubernetes/manifests
streamingConnectionIdleTimeout: 4h0m0s
syncFrequency: 1m0s
volumeStatsAggPeriod: 1m0s三、启动kubelet并查看日志### --- 启动所有节点kubelet并设置开机自启动 ~~~ # 启动kubelet服务并设置开机自启动 [root@k8s-master01 ~]# systemctl daemon-reload [root@k8s-master01 ~]# systemctl enable --now kubelet Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service. [root@k8s-master01 ~]# systemctl status kubelet
### --- 查看系统日志 ~~~ # 此时系统日志/var/log/messages ~~~ Unable to update cni config: no networks found in /etc/cni/net.d ~~~ 显示只有如下信息为正常四、查看集群状态
### --- 查看集群状态 [root@k8s-master01 ~]# kubectl get node NAME STATUS ROLES AGE VERSION k8s-master01 NotReady <none> 2m27s v1.20.0 k8s-master02 NotReady <none> 2m27s v1.20.0 k8s-master03 NotReady <none> 2m29s v1.20.0 k8s-node01 NotReady <none> 119s v1.20.0 k8s-node02 NotReady <none> 111s v1.20.0
===============================END===============================
Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart ——W.S.Landor
来自为知笔记(Wiz)
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