1. install new node Docker, kubelet, kubeadm, kubectl 2 .kubelet provided enable; docker provided Enabled systemctl enable Docker kubelet . 3 closed swap partition. [Node2 the root @ ~] # The swapoff - A [node2 the root @ ~] # Free - H Free Shared BUFF Used Total / Cache Available Mem: . 1 0.8 g 174M 846M 9.5M 798M . 1 .4G Swap: 0B 0B 0B [node2 the root @ ~] -i # Sed ' /swap/s@\(.*\)@# \. 1 @ ' / etc / fstab . 4
Load ip_vs module: [root @ node2 the IPVS] # CAT ipvs.sh #/ bin /!Bash modprobe-ip_vs modprobe-ip_vs_sh modprobe-ip_vs_rr modprobe-ip_vs_wrr modprobe-nf_conntrack_ipv4 [root @ node2 the IPVS] #echo "bash /root/ipvs/ipvs.sh">> / etc /rc.local [root @ node2 the IPVS] #chmod+ the X-/ etc /rc.local 5 . ip_vs test is enabled: [root @ node2 the IPVS] # lsmod|grep ip_vs ip_vs_wrr 12697 0 ip_vs_rr 12600 0 ip_vs_sh 12688 0 ip_vs 145497 6 ip_vs_rr,ip_vs_sh,ip_vs_wrr nf_conntrack 133095 7 ip_vs,nf_nat,nf_nat_ipv4,xt_conntrack,nf_nat_masquerade_ipv4,nf_conntrack_netlink,nf_conntrack_ipv4 libcrc32c 12644 4 xfs,ip_vs,nf_nat,nf_conntrack 6.master执行： [root@master ipvs]# kubeadm token create --print-join-command kubeadm join 192.168.100.200:6443 --token 5zv3v2.ee3gopn6n1jdr4rx --discovery-token-ca-cert-hash sha256:442aa72184ea7de3f3ce8e6e97516e657061fa18a613794d66c3d7a68f3639c1
7.新增节点执行： [root@node2 ~]# kubeadm join 192.168.100.200:6443 --token 5zv3v2.ee3gopn6n1jdr4rx --discovery-token-ca-cert-hash sha256:442aa72184ea7de3f3ce8e6e97516e657061fa18a613794d66c3d7a68f3639c1 [preflight] Running pre-flight checks [WARNING SystemVerification]: this Docker version is not on the list of validated versions: 19.03.4. Latest validated version: 18.09 [preflight] Reading configuration from the cluster... [preflight] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -oyaml' [kubelet-start] Downloading configuration for the kubelet from the "kubelet-config-1.16" ConfigMap in the kube-system namespace [kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml" [kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env " [kubelet - Start] Activating at The kubelet Service [kubelet -start] Waiting for at The kubelet to the perform at The TLS Bootstrap ... This has joined the Node at The Cluster: * Certificate Signing Request Sent to apiserver and A WAS WAS Received the Response. * at The Kubelet at The WAS at Informed of new new Secure Connection the Details. the Run ' kubectl GET nodes ' ON at The Control-Plane to See the this the node at The the Join cluster. Note: new node has successfully joined the cluster .
8. operating on new node flannel, PAUSE, kube- Proxy mirror: [the root @ node1~]# docker save -o flannel.tar quay.io/coreos/flannel:v0.11.0-amd64 [root@node1 ~]# docker save -o kube-proxy.tar k8s.gcr.io/kube-proxy:v1.16.2 [root@node1 ~]# docker save -o pause.tar k8s.gcr.io/pause:3.1 [root@node1 ~]# scp flannel.tar kube-proxy.tar pause.tar node2:/root/ root@node2's password: flannel.tar 100% 50MB 30.7MB/s 00:01 kube-proxy.tar 100% 84MB 41.9MB/s 00:02 pause.tar [root@node2 ~]# docker load -i flannel.tar [root@node2 ~]# docker load < kube-proxy.tar [root@node2 ~]# docker load -i pause.tar
9.master节点查看： [root@master ipvs]# kubectl get nodes NAME STATUS ROLES AGE VERSION master Ready master 30d v1.16.2 node1 Ready <none> 30d v1.16.2 Ready node2 . <none> 30d v1 16.2 Note: At this point the new node has joined the cluster node2 success. [Master @ IPVS the root] # kubectl GET POD - O Wide NAME RESTARTS of AGE the IP NODEs the STATUS READY Nominated NODEs READINESS GATES the httpd -856c97d764-6zq2d . 1 / . 1 Running 14 18 d 10.244 . 1.220 node1 <none> <none> Jenkins -6d7fb8f845-6dr8n . 1 / . 1 Running 0 5d20h 10.244.2.2 node2 <none> <none>