k8s_master_install_v2.sh

Posted 2022-04-20 zhj5551

  1 #!/bin/bash
  2 #by zhangjia
  3 #2019年3月30日22:17:14
  4 #k8s_master auto install
  5 ##############################################3333
  6 set -e
  7 network_name=eth0
  8 apiserver_ip=`ifconfig $network_name | grep inet |grep netmask | awk ‘print $2‘`
  9 node_ip=`ifconfig $network_name | grep inet |grep netmask|awk ‘print $2‘`
 10 setenforce 0 && sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
 11 systemctl stop firewalld && systemctl disable firewalld
 12 yum -y install ntp && ntpdate pool.ntp.org || true
 13 systemctl start ntpd && systemctl enable ntpd
 14 
 15 
 16 k8s_master_step1() 
 17     yum install kubernetes-master etcd flannel -y
 18     #modify /etc/etcd/etcd.conf
 19     sed -i "s#ETCD_DATA_DIR=.*#ETCD_DATA_DIR=\"/data/etcd/\"#g" /etc/etcd/etcd.conf
 20     sed -i "s#ETCD_NAME=.*#ETCD_NAME=\"etcd_k8s_master\"#g" /etc/etcd/etcd.conf
 21     sed -i "s#ETCD_LISTEN_CLIENT_URLS=.*#ETCD_LISTEN_CLIENT_URLS=\"http://localhost:2379,http://$apiserver_ip:2379\"#g" /etc/etcd/etcd.conf
 22     sed -i "s#ETCD_ADVERTISE_CLIENT_URLS=.*#ETCD_ADVERTISE_CLIENT_URLS=\"http://localhost:2379,http://$apiserver_ip:2379\"#g" /etc/etcd/etcd.conf
 23     [[ ! -d /data/etcd ]] && ( mkdir -p /data/etcd/;chmod 757 -R /data/etcd/ )
 24     systemctl restart etcd.service
 25 
 26     #modify /etc/kubernetes/apiserver
 27     sed -i "s#KUBE_API_ADDRESS=.*#KUBE_API_ADDRESS=\"--insecure-bind-address=0.0.0.0\"#g" /etc/kubernetes/apiserver
 28     sed -i "/KUBE_API_PORT/ s/#//g" /etc/kubernetes/apiserver
 29     sed -i "/KUBELET_PORT/ s/#//g" /etc/kubernetes/apiserver
 30     sed -i "s#KUBE_ETCD_SERVERS=.*#KUBE_ETCD_SERVERS=\"--etcd-servers=http://$apiserver_ip:2379\"#g" /etc/kubernetes/apiserver
 31     sed -i "s#KUBE_ADMISSION_CONTROL=.*#KUBE_ADMISSION_CONTROL=\"--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ResourceQuota\"#g" /etc/kubernetes/apiserver
 32     sed -i ‘s/\ //g‘ /etc/kubernetes/apiserver
 33 
 34     #modify /etc/kubernetes/config
 35     sed -i "s#KUBE_ALLOW.*#KUBE_ALLOW_PRIV=\"--allow-privileged=true\"#g" /etc/kubernetes/config
 36     sed -i "s#KUBE_MASTER=.*#KUBE_MASTER=\"--master=http://$apiserver_ip:8080\"#g" /etc/kubernetes/config
 37 
 38     #start  etcd  kube-apiserver  kube-controller-manager kube-scheduler
 39     for I in etcd kube-apiserver kube-controller-manager kube-scheduler;do systemctl restart $I;systemctl enable $I;systemctl status $I;done
 40     iptables -P FORWARD ACCEPT
 41 
 42 
 43 k8s_node_step2() 
 44     #install kubernetes-node etcd docker flannel *rhsm
 45     yum install kubernetes-node etcd docker flannel *rhsm* -y
 46     #配置文件/etc/kubernetes/kubelet
 47     sed -i "/KUBELET_ADDRESS/ s/127.0.0.1/0\.0\.0\.0/g" /etc/kubernetes/kubelet
 48     sed -i "/KUBELET_PORT/ s/#//g" /etc/kubernetes/kubelet 
 49     sed -i "s#KUBELET_HOSTNAME.*#KUBELET_HOSTNAME=\"--hostname-override=$node_ip\"#g" /etc/kubernetes/kubelet
 50     sed -i "s#KUBELET_API_SERVER.*#KUBELET_API_SERVER=\"--api-servers=http://$apiserver_ip:8080\"#g" /etc/kubernetes/kubelet 
 51     sed -i ‘s/\ //g‘ /etc/kubernetes/kubelet
 52     #配置文件/etc/kubernetes/config
 53     sed -i "/KUBE_ALLOW_PRIV/ s/false/true/g" /etc/kubernetes/config
 54     sed -i "s#KUBE_MASTER.*#KUBE_MASTER=\"--master=http://$apiserver_ip:8080\"#g" /etc/kubernetes/config
 55     #启动 kube-proxy  kubelet  docker
 56     for  I  in  kube-proxy  kubelet  docker;do systemctl  restart  $I ;systemctl  enable  $I ;systemctl status $I;done
 57     iptables -P FORWARD ACCEPT
 58 
 59 
 60 
 61 
 62 flannel_step3() 
 63     #modify /etc/sysconfig/flannel
 64     sed -i "s#127.0.0.1#$apiserver_ip#g" /etc/sysconfig/flanneld
 65     #在Master服务器，测试Etcd集群是否正常，同时在Etcd配置中心创建flannel网络配置：
 66     etcdctl  member list
 67     etcdctl cluster-health
 68     etcdctl  rm   /atomic.io/network/   --recursive || true
 69     etcdctl  mk  /atomic.io/network/config ‘"Network":"172.17.0.0/16"‘
 70     etcdctl get /atomic.io/network/config
 71     systemctl restart flanneld ; systemctl enable flanneld
 72 
 73 
 74 
 75 flanneld_step4() 
 76     #k8s_master的/etc/sysconfig/flanneld
 77     sed -i "s#FLANNEL_ETCD_ENDPOINTS.*#FLANNEL_ETCD_ENDPOINTS=\"http://$apiserver_id:2379\"#g" /etc/sysconfig/flanneld
 78     systemctl restart flanneld ; systemctl enable flanneld
 79     docker load < pod-infrastructure.tgz
 80     docker tag $(docker images|grep none|awk ‘print $3‘) registry.access.redhat.com/rhel7/pod-infrastructure
 81     docker load < kubernetes-dashboard-amd64.tgz
 82     docker tag $(docker images|grep none|awk ‘print $3‘) bestwu/kubernetes-dashboard-amd64:v1.6.3
 83 
 84 
 85 
 86 dashboard_step5() 
 87     #然后在Master端，创建dashboard-controller.yaml
 88     #创建dashboard-service.yaml
 89     sed -i "/apiserver-host/ s#http.*#http://$apiserver_ip:8080#g" dashboard-controller.yaml
 90     kubectl delete -f dashboard-controller.yaml || true ; kubectl create -f dashboard-controller.yaml
 91     kubectl delete -f dashboard-service.yaml || true ; kubectl create -f dashboard-service.yaml
 92     kubectl  get  namespace
 93     kubectl get  deployment --all-namespaces
 94     kubectl get  svc  --all-namespaces
 95     kubectl  get  pods  --all-namespaces
 96     kubectl get pod  -o wide  --all-namespaces
 97     kubectl  describe  service/kubernetes-dashboard  --namespace="kube-system"
 98     #kubectl  describe  pod/kubernetes-dashboard-530803917-816df --namespace="kube-system"
 99     #kubectl  delete pod/kubernetes-dashboard-530803917-816df --namespace="kube-system" --grace-period=0 --force
100 
101 
102 
103 #k8s_master_step1
104 #flannel_step3
105 #dashboard_step5