参考脚本
不实用脚本，仅记录过程
Master
-
master 节点，安装Kubernetes软件包（kubectl kubead kubelet ）
#!/bin/bash # echo "修改主机名" # echo "修改主机名" read -p "##输入要修改的主机名: " hostname hostnamectl --static set-hostname $hostname # 为服务配置代理服务 export http_proxy=http://10.1.0.160:1087 && export https_proxy=http://10.1.0.160:1087 # install docker as container runtimes as below yum install -y yum-utils # 安装docker-compose curl -L "https://github.com/docker/compose/releases/download/1.26.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose && ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose # 下载docker yum源 yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo # 安装docker #yum install docker-ce docker-ce-cli containerd.io -y yum install -y docker-ce-19.03.11-3.el7 docker-ce-cli-19.03.11-3.el7 containerd.io # 修改docker daemon.json mkdir /etc/docker /data cat > /etc/docker/daemon.json <<-EOF { "exec-opts": ["native.cgroupdriver=systemd"], "data-root": "/data/docker", "log-driver": "json-file", "log-opts": { "max-size": "10m", "max-file":"5" }, "storage-driver": "overlay2", "storage-opts": [ "overlay2.override_kernel_check=true" ] } EOF mkdir -p /etc/systemd/system/docker.service.d cat > /etc/systemd/system/docker.service.d/https-proxy.conf <<-EOF [Service] Environment="HTTP_PROXY=http://10.1.0.160:1087/" "HTTPS_PROXY=http://10.1.0.160:1087/" "NO_PROXY=localhost,127.0.0.1,hub.nflow.cn" EOF # 启动docker systemctl enable docker && systemctl daemon-reload && systemctl start docker # Letting iptables see bridged traffic cat <<-EOF | sudo tee /etc/sysctl.d/k8s.conf net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 EOF # 确认br_netfilter modprobe br_netfilter # 安装kubeadm kubectl kubelet cat <<-EOF > /etc/yum.repos.d/kubernetes.repo [kubernetes] name=Kubernetes baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64 enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg exclude=kubelet kubeadm kubectl EOF # 关闭selinux setenforce 0 sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config # 开始安装 yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes #export http_proxy=http://10.1.0.160:1087 && export https_proxy=http://10.1.0.160:1087 # enable kubelet systemctl enable --now kubelet # 开启kubead kubectl命令补全功能 cat <<-EOF >> ~/.bashrc source <(kubectl completion bash) source <(kubeadm completion bash) EOF source ~/.bashrc # 重写Kubernetes 镜像 # #kubeadm config images pull --kubernetes-version=v1.18.3 # version=v1.18.3 # images=(`kubeadm config images list --kubernetes-version=$version|awk -F '/' '{print $2}'`) # for i in ${images[@]} ; do # docker tag k8s.gcr.io/${i} hub.nflow.cn/${i} # docker push hub.nflow.cn/${i} # done # 开始安装Kubernetes（集群模式） # kubeadm init --upload-certs --config=kubeadm-config.yaml --v=5
-
初始化脚本
#!/bin/bash # 配置 #echo -e "选择Kubernetes配置的环境" #select menu in "生产环境" "测试环境" "开发环境" "退出安装" #do # case $menu in # "生产环境") # read -p " 请输入公有云提供商负载均衡私有地址:" ip # echo $ip # ;; # esac #done # 生成kubead example config.yaml cat <<-EOF > ./kubeadm-config-example.yaml apiVersion: kubeadm.k8s.io/v1beta2 kind: InitConfiguration bootstrapTokens: - groups: - system:bootstrappers:kubeadm:default-node-token token: abcdef.0123456789abcdef ttl: 24h0m0s usages: - signing - authentication localAPIEndpoint: advertiseAddress: aaip bindPort: 6443 nodeRegistration: criSocket: /var/run/dockershim.sock name: izt4n9u81t8muejzz4mqv0z taints: - effect: NoSchedule key: node-role.kubernetes.io/master --- apiServer: timeoutForControlPlane: 4m0s apiVersion: kubeadm.k8s.io/v1beta2 certificatesDir: /etc/kubernetes/pki clusterName: kubernetes controllerManager: {} dns: type: CoreDNS etcd: local: dataDir: /var/lib/etcd imageRepository: k8s.gcr.io kind: ClusterConfiguration kubernetesVersion: v1.18.4 controlPlaneEndpoint: cpeip:6443 networking: dnsDomain: nflow.so serviceSubnet: 10.10.0.0/16 podSubnet: 172.19.0.0/16 scheduler: {} EOF # 配置之前要求 main() { echo " 配置要求 " echo -e "\e[1;33m------------------------------------------------------\e[0m" echo " 1）创建一个公有云私有负载均衡" echo " 2）为kubernetes apiserver配置一个6443端口的TCP转发策略" echo -e "\e[1;33m------------------------------------------------------\e[0m" # } main # check control plane endpoint address is exsit if [ -z ${1} ];then #echo -e "\033[37;31m[\$1] control plane endpoint address of kubernetes is not exsit\033[39;49m" echo -e "\033[37;31m[\$1] control plane endpoint address of kubernetes is not exsit\033[39;49m" echo " excute script such as (sh k8s-config.sh 1.1.1.1)" exit else echo " Control plane endpoint address of kubernetes is exsit" fi # replase AdvertiseAddress & control plane endpoint,如下 sed -e "s/aaip/$(hostname -i)/g" -e "s/cpeip/$1/g" kubeadm-config-example.yaml > kubeadm-config.yaml # bind slb ipaddress to localhost network main device ip addr add $1/20 dev eth0 # 开始初始化Kubernetes集群 echo -e "\e[1;33m Start configure kubernetes cluster......\e[0m" kubeadm init --config=kubeadm-config.yaml --upload-certs --v=5
node
- node节点，安装Kubernetes软件包（kubectl kubead kubelet）
#!/bin/bash # echo "修改主机名" # echo "修改主机名" read -p "##输入要修改的主机名: " hostname hostnamectl --static set-hostname $hostname # install docker as container runtimes as below yum install -y yum-utils # 安装docker-compose curl -L "https://github.com/docker/compose/releases/download/1.26.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose && ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose # 下载docker yum源 yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo # 安装docker #yum install docker-ce docker-ce-cli containerd.io -y yum install -y docker-ce-19.03.11-3.el7 docker-ce-cli-19.03.11-3.el7 containerd.io # 修改docker daemon.json mkdir /etc/docker /data cat > /etc/docker/daemon.json <<-EOF { "exec-opts": ["native.cgroupdriver=systemd"], "data-root": "/data/docker", "log-driver": "json-file", "log-opts": { "max-size": "10m", "max-file":"5" }, "storage-driver": "overlay2", "storage-opts": [ "overlay2.override_kernel_check=true" ] } EOF mkdir -p /etc/systemd/system/docker.service.d # 启动docker systemctl enable docker && systemctl daemon-reload && systemctl start docker # Letting iptables see bridged traffic cat <<-EOF | sudo tee /etc/sysctl.d/k8s.conf net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 EOF # 确认br_netfilter modprobe br_netfilter # 安装kubeadm kubectl kubelet cat <<-EOF > /etc/yum.repos.d/kubernetes.repo [kubernetes] name=Kubernetes baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64 enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg exclude=kubelet kubeadm kubectl EOF # 关闭selinux setenforce 0 sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config # 开始安装 yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes export http_proxy=http://10.1.0.160:1087 && export https_proxy=http://10.1.0.160:1087 # enable kubelet systemctl enable --now kubelet # 开启kubead kubectl命令补全功能 cat <<-EOF >> ~/.bashrc source <(kubectl completion bash) source <(kubeadm completion bash) EOF source ~/.bashrc # 重写Kubernetes 镜像 # #kubeadm config images pull --kubernetes-version=v1.18.3 # version=v1.18.3 # images=(`kubeadm config images list --kubernetes-version=$version|awk -F '/' '{print $2}'`) # for i in ${images[@]} ; do # docker tag k8s.gcr.io/${i} hub.nflow.cn/${i} # docker push hub.nflow.cn/${i} # done # 开始安装Kubernetes（集群模式） # kubeadm init --upload-certs --config=kubeadm-config.yaml --v=5