安装docker-v19.03.11 安装k8S-V1.18.1

1 修改主机名
2 master虚拟机
3 hostnamectl set-hostname master
4 node1虚拟机
5 hostnamectl set-hostname node1虚拟机
6 #两台机器都要执行
7 1.关闭防火墙
8 systemctl stop firewalld.service 关闭防火墙
9 systemctl disable firewalld.service 关闭防火墙开机自启
10 2.关闭selinux
11 setenforce 0
12 vi /etc/selinux/config
13 SELINUX=后面改成 disabled
14 3.设置华为的docker源
wget -O /etc/yum.repos.d/docker-ce.repo https://repo.huaweicloud.com/docker￾ce/linux/centos/docker-ce.repo
15
sudo sed -i 's+download.docker.com+repo.huaweicloud.com/docker-ce+'
/etc/yum.repos.d/docker-ce.repo
16
17 sudo yum makecache fast
18 4.安装docker-ce docker-ce-cli
19 yum install -y docker-ce-19.03.11 docker-ce-cli-19.03.11
20 5.启动docker设置开机自启并查看docker版本
21 systemctl enable docker --now
22 docker --version
23 6.设置华为k8s源
24 cat <<EOF > /etc/yum.repos.d/kubernetes.repo 
25 [kubernetes]
26 name=Kubernetes 
27 baseurl=https://repo.huaweicloud.com/kubernetes/yum/repos/kubernetes-el7-x86_64
28 enabled=1
29 gpgcheck=1
30 repo_gpgcheck=0
31 gpgkey=https://repo.huaweicloud.com/kubernetes/yum/doc/yum-key.gpg
https://repo.huaweicloud.com/kubernetes/yum/doc/rpm-package-key.gpg 
32 EOF
33 yum clean all
34 yum makecache fast
35 7.更新yum源
36 yum -y update
37 8.安装所需的软件包
38 yum install epel* -y
39 yum -y install yum-utilsdevice-mapper-persistent-data lvm2
40 9.安装基础软件包
41 yum -y install wget net-tools nfs-utils lrzsz gcc gcc-c++make cmake libxml2-devel
openssl-devel curl curl-devel unzip sudo ntplibaio-devel wget vim ncurses-devel
autoconf automake zlib-devel python-devel epel-release openssh-serversocat ipvsadm
conntrack ntpdate
42 10.关闭交换分区
43 swapoff -a
44 #永久禁用，打开/etc/fstab注释掉swap那一行。
45 11.修改内核参数
46 cat <<EOF > /etc/sysctl.d/k8s.conf
47 net.bridge.bridge-nf-call-ip6tables = 1
48 net.bridge.bridge-nf-call-iptables = 1
49 EOF
50 sysctl --system
51 12.配置hosts文件
52 192.168.42.165 master
53 192.168.42.164 node1
54 13.配置master到node1免密登录
55 在master上操作
56 ssh-keygen -t rsa #一直按回车
57 cd /root && ssh-copy-id -i .ssh/id_rsa.pub root@node1
58 14.安装kubernetes1.18.1
59 yum install kubeadm-1.18.1 kubelet-1.18.1 -y
60 systemctl enable kubelet
61 15.初始化k8s集群
62 kubeadm init --apiserver-advertise-address=192.168.30.128
63 --image-repository
64 registry.aliyuncs.com/google_containers --kubernetes-version
65 v1.18.1 --service-cidr=10.96.0.0/12
66 --pod-network-cidr=10.244.0.0/16
67 mkdir -p $HOME/.kube
68 cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
69 chown $(id -u):$(id -g) $HOME/.kube/config
70 kubectl get nodes
71 [root@master ~]# kubectl get nodes
72 NAME STATUS ROLES AGE VERSION
73 master NotReady master 106m v1.18.1
74 [root@master ~]# kubeadm token generate
75 cgbo1c.hfnvut9rkh89iq81 记住这个把下面token 后面的换成这个
76 [root@master ~]# kubeadm token create cgbo1c.hfnvut9rkh89iq81 --print-join-command --
ttl=0
77 W0930 19:19:52.461302 10455 configset.go:202] WARNING: kubeadm cannot validate
component configs for API groups [kubelet.config.k8s.io kubeproxy.config.k8s.io]
78 kubeadm join 192.168.42.165:6443 --token cgbo1c.hfnvut9rkh89iq81 --discovery-token￾ca-cert-hash sha256:6afe10ddbde08d927f08c7c7e64efe5f10bb80ae291a0d9313a0692a04d4b363
79 #记住上面最后输出的命令在node1点执行
80 #node1执行
81 kubeadm join 192.168.42.165:6443 --token cgbo1c.hfnvut9rkh89iq81 --discovery-token￾ca-cert-hash sha256:6afe10ddbde08d927f08c7c7e64efe5f10bb80ae291a0d9313a0692a04d4b363
82 kubectl label node node1(节点名称) node-role.kubernetes.io/worker=worker
83 #然后master 输入 kubectl get nodes
84 [root@master ~]# kubectl get nodes
85 NAME STATUS ROLES AGE VERSION
86 master Ready master 135m v1.18.1
87 node1 Ready worker 60m v1.18.1
88
89 #创建一个命名空间为Nginx-web
90 [root@master ~]# kubectl create namespace nginx-web #nginx-web空间名字
91 namespace/nginx-web created
92
93 #运行pod
94 kubectl run nginx-pod -n nginx-web --image=nginx --port=80
95
96 -n命名空间
97 --image 指定的镜像
98 --port 暴露的端口
99
100 kubectl expose pod nginx-pod -n nginx-web --port=80 --type=ClusterIP --target-port=80
--name=nginx-server
101
102 --port=80 指定端口
103 --target-port=80 目标端口
104 --name=nginx-server 新创建的service名字
105 -n 指定要加入的命名空间
106
107 kind 允许您指定要定义的 Kubernetes 对象的类型
108
109 #创建hostpath卷
110 [root@master ~]# cat hostpath.yaml 
111 apiVersion: v1
112 kind: Pod
113 metadata:
114 name: test-pd #pod名字
115 spec:
116 containers:
117 - images: nginx #镜像
118 name: test-container #容器名字
119 volumeMounts:
120 - mountPath: /test #容器内部路径
121 name: test-volume
122 volumes:
123 - name: test-volume
124 hostPath:
125 path: /data 宿主机目录
126 type: DirectoryOrCreate
127
128
129 #创建nfs持久卷
130 master搭建nfs
131
132 node1挂载
133
134 [root@master ~]# cat nfs.yaml 
135 apiVersion: v1
136 kind: Pod
137 metadata:
138 name: test-nfs
139 spec:
140 containers:
141 - image: nginx
142 name: test-container
143 volumeMounts:
144 - mountPath: /testxiaole #容器内路径
145 name: test-volume
146 volumes:
147 - name: test-volume
148 nfs:
149 server: 192.168.30.128 #服务器地址
150 path: /opt/xiaole #容器外路径
151
152 yaml编排创建命名空间 web
153 [root@master ~]# cat createweb.yaml 
154 apiVersion: v1
155 kind: Namespace
156 metadata:
157 name: web
158