k8s安装2
[root@master01 ~]# cd /opt/k8s/kubernetes/server/bin
[root@master01 bin]# scp kubelet kube-proxy root@192.168.111.21:/opt/kubernetes/
[root@master01 bin]# cd /opt/k8s/kubeconfig
[root@master01 kubeconfig]# chmod +x kubeconfig.sh
[root@master01 kubeconfig]# vim kubeconfig.sh
[root@master01 kubeconfig]# ./kubeconfig.sh 192.168.111.20 /opt/k8s/k8s-cert/
Cluster "kubernetes" set.
User "kubelet-bootstrap" set.
Context "default" created.
Switched to context "default".
Cluster "kubernetes" set.
User "kube-proxy" set.
Context "default" created.
Switched to context "default".
[root@master01 kubeconfig]# scp bootstrap.kubeconfig kube-proxy.kubeconfig root@ 192.168.111.21:/opt/kubernetes/cfg/
root@192.168.111.21's password:
bootstrap.kubeconfig 100% 2168 2.8MB/s 00:00
kube-proxy.kubeconfig 100% 6270 7.5MB/s 00:00
[root@master01 kubeconfig]# scp bootstrap.kubeconfig kube-proxy.kubeconfig root@ 192.168.111.23:/opt/kubernetes/cfg/
root@192.168.111.23's password:
bootstrap.kubeconfig 100% 2168 3.1MB/s 00:00
kube-proxy.kubeconfig 100% 6270 9.9MB/s 00:00
[root@master01 kubeconfig]# kubectl create clusterrolebinding kubelet-bootstrap --clusterrole=system:node-bootstrapper --user=kubelet-bootstrap
[root@master01 kubeconfig]# kubectl get csr
NAME AGE SIGNERNAME REQUESTOR CONDITION
node-csr-bgmn7KV6TyEcKGbfStZcNXSOkH8uxCMgQtBt9fs1_Ig 62s kubernetes.io/kube- apiserver-client-kubelet kubelet-bootstrap Pending
[root@master01 kubeconfig]# kubectl certificate approve node-csr-bgmn7KV6TyEcKGb fStZcNXSOkH8uxCMgQtBt9fs1_Ig
certificatesigningrequest.certificates.k8s.io/node-csr-bgmn7KV6TyEcKGbfStZcNXSOk H8uxCMgQtBt9fs1_Ig approved
[root@master01 kubeconfig]# kubectl get csr
NAME AGE SIGNERNAME REQUESTOR CONDITION
[root@master01 kubeconfig]# kubectl get node
NAME STATUS ROLES AGE VERSION
192.168.111.21 NotReady <none> 64s v1.20.11
[root@master01 kubeconfig]# cd /opt/k8s
[root@master01 k8s]# kubectl apply -f kube-flannel.yml
podsecuritypolicy.policy/psp.flannel.unprivileged created
clusterrole.rbac.authorization.k8s.io/flannel created
clusterrolebinding.rbac.authorization.k8s.io/flannel created
serviceaccount/flannel created
configmap/kube-flannel-cfg created
daemonset.apps/kube-flannel-ds created
[root@master01 k8s]# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
kube-flannel-ds-5t8xq 0/1 Init:0/1 0 11s
[root@master01 k8s]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
192.168.111.21 NotReady <none> 7m37s v1.20.11
[root@master01 k8s]# vim calico.yaml
[root@master01 k8s]# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
kube-flannel-ds-5t8xq 1/1 Running 0 7m12s
[root@master01 k8s]# vim calico.yaml
[root@master01 k8s]# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
kube-flannel-ds-5t8xq 1/1 Running 0 13m
[root@master01 k8s]# kubectl get csr
NAME AGE SIGNERNAME REQUESTOR CONDITION
node-csr-bgmn7KV6TyEcKGbfStZcNXSOkH8uxCMgQtBt9fs1_Ig 31m kubernetes.io/kube- apiserver-client-kubelet kubelet-bootstrap Approved,Issued
node-csr-owWHRCQCfhR0mIU01uMb4sqPBl2FsORPr83Khy9OFi0 27s kubernetes.io/kube- apiserver-client-kubelet kubelet-bootstrap Pending
[root@master01 k8s]# kubectl certificate approve node-csr-owWHRCQCfhR0mIU01uMb4s qPBl2FsORPr83Khy9OFi0
certificatesigningrequest.certificates.k8s.io/node-csr-owWHRCQCfhR0mIU01uMb4sqPB l2FsORPr83Khy9OFi0 approved
[root@master01 k8s]# kubectl get csr
NAME AGE SIGNERNAME REQUESTOR CONDITION
node-csr-bgmn7KV6TyEcKGbfStZcNXSOkH8uxCMgQtBt9fs1_Ig 32m kubernetes.io/kube- apiserver-client-kubelet kubelet-bootstrap Approved,Issued
node-csr-owWHRCQCfhR0mIU01uMb4sqPBl2FsORPr83Khy9OFi0 78s kubernetes.io/kube- apiserver-client-kubelet kubelet-bootstrap Approved,Issued
[root@master01 k8s]# for i in $(ls /usr/lib/modules/$(uname -r)/kernel/net/netfi lter/ipvs|grep -o "^[^.]*");do echo $i; /sbin/modinfo -F filename $i >/dev/null 2>&1 && /sbin/modprobe $i;done
ip_vs_dh
ip_vs_ftp
ip_vs
ip_vs_lblc
ip_vs_lblcr
ip_vs_lc
ip_vs_nq
ip_vs_pe_sip
ip_vs_rr
ip_vs_sed
ip_vs_sh
ip_vs_wlc
ip_vs_wrr
[root@master01 k8s]# cd /opt/
[root@master01 opt]# ls
etcd k8s kubernetes rh
[root@master01 opt]# ls
etcd k8s kubernetes rh
[root@master01 opt]# ls
etcd k8s kubernetes rh
[root@master01 opt]# vim proxy.sh
[root@master01 opt]# cd k8s
[root@master01 k8s]# ls
admin.sh kubeconfig
apiserver.sh kube-flannel.yml
calico.yaml kubernetes
controller-manager.sh kubernetes-server-linux-amd64.tar.gz
etcd-cert master
etcd.sh master.zip
etcd-v3.4.9-linux-amd64 proxy.sh
etcd-v3.4.9-linux-amd64.tar.gz scheduler.sh
k8s-cert token.sh
[root@master01 k8s]# vim proxy.sh
[root@master01 k8s]# ./proxy.sh 192.168.111.23
-bash: ./proxy.sh: 权限不够
[root@master01 k8s]# chmod +x proxy.sh
[root@master01 k8s]# ./proxy.sh 192.168.111.23
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.serv ice to /usr/lib/systemd/system/kube-proxy.service.
[root@master01 k8s]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
192.168.111.21 Ready <none> 40m v1.20.11
192.168.111.23 Ready <none> 11m v1.20.11
[root@master01 k8s]# kubectl apply -f coredns.yaml
serviceaccount/coredns created
clusterrole.rbac.authorization.k8s.io/system:coredns created
clusterrolebinding.rbac.authorization.k8s.io/system:coredns created
configmap/coredns created
deployment.apps/coredns created
service/kube-dns created
[root@master01 k8s]#
[root@master01 k8s]#
[root@master01 k8s]# kubectl get pods -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-6954c77b9b-swgt4 1/1 Running 0 13s
kube-flannel-ds-5t8xq 1/1 Running 0 37m
kube-flannel-ds-xs652 0/1 CrashLoopBackOff 7 17m
[root@master01 k8s]# kubectl create clusterrolebinding cluster-system-anonymous --clusterrole=cluster-admin --user=system:anonymous
clusterrolebinding.rbac.authorization.k8s.io/cluster-system-anonymous created
[root@master01 k8s]# kubectl run -it --rm dns-test --image=busybox:1.28.4 sh If you don't see a command prompt, try pressing enter.
/ # kubectl get pods -n kube-system
sh: kubectl: not found
/ # nslookup kubernetes
Server: 10.0.0.2
Address 1: 10.0.0.2 kube-dns.kube-system.svc.cluster.local
Name: kubernetes
Address 1: 10.0.0.1 kubernetes.default.svc.cluster.local
/ #
[root@node01 opt]# chmod +x kubelet.sh proxy.sh
[root@node01 opt]# vim kubelet.sh
[root@node01 opt]# vim proxy.sh
[root@node01 opt]# mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}
[root@node01 opt]# ./kubelet.sh 192.168.111.21
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service.
[root@node01 opt]#
[root@node01 opt]#
[root@node01 opt]# ps aux | grep kubelet
root 54571 1.5 0.6 1181088 54892 ? Ssl 16:13 0:00 /opt/kubernete s/bin/kubelet --logtostderr=false --v=2 --log-dir=/opt/kubernetes/logs --hostnam
[root@node01 opt]# for i in $(ls /usr/lib/modules/$(uname -r)/kernel/net/netfilt er/ipvs|grep -o "^[^.]*");do echo $i; /sbin/modinfo -F filename $i >/dev/null 2> &1 && /sbin/modprobe $i;done
ip_vs_dh
ip_vs_ftp
ip_vs
[root@node01 opt]# cd /opt/
[root@node01 opt]# ./proxy.sh 192.168.111.21
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.serv ice to /usr/lib/systemd/system/kube-proxy.service.
[root@node01 opt]# ps aux | grep kube-proxy
root 55482 3.4 0.4 744836 33564 ? S
[root@node01 opt]# docker load -i flannel.tar
777b2c648970: Loading layer 5.848MB/5.848MB
815dff9e0b57: Loading layer 11.42MB/11.42MB
2e16188127c8: Loading layer 2.267MB/2.267MB
eb738177d102: Loading layer 49.34MB/49.34MB
b613d890216c: Loading layer 5.12kB/5.12kB
[root@node01 opt]# kubectl get csr
bash: kubectl: 未找到命令...
[root@node01 opt]# docker load -i coredns.tar
225df95e717c: Loading layer 336.4kB/336.4kB
96d17b0b58a7: Loading layer 45.02MB/45.02MB
Loaded image: k8s.gcr.io/coredns:1.7.0
[root@node01 opt]#
[root@node01 opt]# cd /opt/k8s
-bash: cd: /opt/k8s: 没有那个文件或目录
[root@node01 opt]# mkdir k8s
[root@node01 opt]# ls
cni coredns.tar k8s node.zip
cni-plugins-linux-amd64-v0.8.6.tgz etcd kubelet.sh proxy.sh
containerd flannel.tar kubernetes rh
[root@node01 opt]# cd k8s
[root@node01 k8s]# kubectl apply -f coredns.yaml
bash: kubectl: 未找到命令...
[root@node01 k8s]# cd /opt
[root@node01 opt]# ls
cni coredns.tar kubelet.sh proxy.sh
cni-plugins-linux-amd64-v0.8.6.tgz etcd kubernetes rh
containerd flannel.tar node.zip
[root@node01 opt]#
[root@node02 ~]# mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}
[root@node02 ~]# cd /opt
[root@node02 opt]# ls
etcd kubelet.sh kubernetes node.zip proxy.sh rh
[root@node02 opt]# chmod +x kubelet.sh proxy.sh
[root@node02 opt]# cd
[root@node02 ~]# systemctl status firewalld.service
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor p reset: enabled)
Active: inactive (dead)
Docs: man:firewalld(1)
12月 25 04:06:29 localhost.localdomain systemd[1]: Starting firewalld - dyna...
12月 25 04:06:30 localhost.localdomain systemd[1]: Started firewalld - dynam...
12月 25 04:06:30 localhost.localdomain firewalld[899]: WARNING: ICMP type 'b...
12月 25 04:06:30 localhost.localdomain firewalld[899]: WARNING: beyond-scope...
12月 25 04:06:30 localhost.localdomain firewalld[899]: WARNING: ICMP type 'f...
12月 25 04:06:30 localhost.localdomain firewalld[899]: WARNING: failed-polic...
12月 25 04:06:30 localhost.localdomain firewalld[899]: WARNING: ICMP type 'r...
12月 25 04:06:30 localhost.localdomain firewalld[899]: WARNING: reject-route...
12月 25 04:08:18 localhost.localdomain systemd[1]: Stopping firewalld - dyna...
12月 25 04:08:18 localhost.localdomain systemd[1]: Stopped firewalld - dynam...
Hint: Some lines were ellipsized, use -l to show in full.
[root@node02 ~]# cd /opt/
[root@node02 opt]# ls
cni etcd kubelet.sh kubernetes node.zip proxy.sh rh
[root@node02 opt]# vim kubelet.sh
[root@node02 opt]# chmod +x kubelet.sh
[root@node02 opt]# ./kubelet.sh 192.168.111.23
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service.
