OpenEuler20.03離線部署k8s集群v1.22.7

1、離線部署文件目錄說(shuō)明

  • os
    openEuler-20.03-LTS-SP4-x86_64-dvd.iso

  • docker
    tar、docker安裝包

  • kubernetes
    kubeadm、kubectl、kubelet及相關(guān)依賴包

  • k8s_images
    kube-apiserver、kube-scheduler、kube-proxy、kube-controller-manager、etcd、coredns、pause、flannel、flannel-cni-plugin鏡像和kube-flannel.yml

2、master節(jié)點(diǎn)部署流程

  • 2.1 鏡像導(dǎo)入

  • 2.2 修改網(wǎng)絡(luò)配置

      cd /etc/sysconfig/network-scripts
  vi ifcfg-eth0

    修改ONBOOT=yes

      systemctl restart NetworkManager
  ip a

    獲取eth0的ip，方便遠(yuǎn)程工具連接。

  • 2.3 設(shè)置hostname，配置host

      hostnamectl set-hostname k8s.master
  vi /etc/hosts

    ip替換本機(jī)ip
    172.20.76.186 k8s.master
    172.20.69.172 k8s.node1

  • 2.4 關(guān)閉防火墻

      systemctl stop firewalld
  systemctl disable firewalld

  • 2.5 關(guān)閉swap

      sed -ri 's/.*swap.*/#&/' /etc/fstab

  • 2.6 關(guān)閉selinux

      sed -i 's/enforcing/disabled/' /etc/selinux/config

  • 2.7 重啟

      reboot

  • 2.8 安裝tar

      rpm -Uvh  tar-1.26-35.el7.x86_64.rpm --nodeps --force

  • 2.9 安裝docker

      tar -zxvf docker-20.10.10.tgz
  cp docker/* /usr/bin/
  vi /etc/systemd/system/docker.service

    docker.service內(nèi)容如下

    [Unit]
    Description=Docker Application Container Engine
    Documentation=https://docs.docker.com
    After=network-online.target firewalld.service
    Wants=network-online.target
    [Service]
    Type=notify
    ExecStart=/usr/bin/dockerd --selinux-enabled=false
    ExecReload=/bin/kill -s HUP $MAINPID
    LimitNOFILE=infinity
    LimitNPROC=infinity
    LimitCORE=infinity
    TimeoutStartSec=0
    Delegate=yes
    KillMode=process
    Restart=on-failure
    StartLimitBurst=3
    StartLimitInterval=60s
    [Install]
    WantedBy=multi-user.target

    chmod +x /etc/systemd/system/docker.service
    systemctl daemon-reload
    systemctl start docker
    systemctl enable docker

  • 2.10 配置docker的cgroupdriver為systemd

      vi /etc/docker/daemon.json

    daemon.json內(nèi)容如下

    {
    "registry-mirrors": [
    "http://hub.geekery.cn",
    "http://hub.littlediary.cn",
    "http://docker.rainbond.cc",
    "https://q3vkr298.mirror.aliyuncs.com",
    "https://docker.1ms.run",
    "https://docker.xuanyuan.me"
    ],
    "exec-opts":["native.cgroupdriver=systemd"]
    }

      systemctl restart docker

  • 2.11 安裝kubeadm、kubectl、kubelet

      mkdir -p /k8s/kubernetes

    將kubernetes目錄下所有文件上傳至/k8s/kubernetes

      rpm -ivh /k8s/kubernetes/*.rpm
  systemctl enable --now kubelet

  • 2.12 導(dǎo)入k8s相關(guān)鏡像

      mkdir -p /k8s/kubadm-init-images

    將k8s_images目錄下所有文件上傳至/k8s/kubadm-init-images

      find /k8s/kubadm-init-images/ -type f -name "*.tar" -exec docker load -i {} \;

    apiserver-advertise-address替換本機(jī)ip

      kubeadm init --apiserver-advertise-address=172.20.76.186 --kubernetes-version v1.22.7 --service-cidr=10.1.0.0/16 --pod-network-cidr=10.244.0.0/16

    復(fù)制返回kubeadm join信息（work節(jié)點(diǎn)加入cluster用到）

    kubeadm join 172.20.76.186:6443 --token 1st15x.4npingkcb3uwul5k
    --discovery-token-ca-cert-hash sha256:31188718933358f0d04103a96ad941c9d4880c0d99fdcc37e827642f6355220b

      mkdir -p $HOME/.kube
  cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

  export KUBECONFIG=/etc/kubernetes/admin.conf

  • 2.13 安裝flannel

      kubectl apply -f kube-flannel.yml

  • 2.14 查看node、pod狀態(tài)

      kubectl get nodes
  kubectl get pods -A

3、work節(jié)點(diǎn)部署流程

  • 3.1 鏡像導(dǎo)入

  • 3.2 修改網(wǎng)絡(luò)配置

      cd /etc/sysconfig/network-scripts
  vi ifcfg-eth0

    修改ONBOOT=yes

      systemctl restart NetworkManager
  ip a

    獲取eth0的ip，方便遠(yuǎn)程工具連接。

  • 3.3 設(shè)置hostname，配置host

      hostnamectl set-hostname k8s.node1
  vi /etc/hosts

    ip替換本機(jī)ip
    172.20.76.186 k8s.master
    172.20.69.172 k8s.node1

  • 3.4 關(guān)閉防火墻

      systemctl stop firewalld
  systemctl disable firewalld

  • 3.5 關(guān)閉swap

      sed -ri 's/.*swap.*/#&/' /etc/fstab

  • 3.6 關(guān)閉selinux

      sed -i 's/enforcing/disabled/' /etc/selinux/config

  • 3.7 重啟

      reboot

  • 3.8 安裝tar

      rpm -Uvh  tar-1.26-35.el7.x86_64.rpm --nodeps --force

  • 3.9 安裝docker

      tar -zxvf docker-20.10.10.tgz
  cp docker/* /usr/bin/
  vi /etc/systemd/system/docker.service

    docker.service內(nèi)容如下

    [Unit]
    Description=Docker Application Container Engine
    Documentation=https://docs.docker.com
    After=network-online.target firewalld.service
    Wants=network-online.target
    [Service]
    Type=notify
    ExecStart=/usr/bin/dockerd --selinux-enabled=false
    ExecReload=/bin/kill -s HUP $MAINPID
    LimitNOFILE=infinity
    LimitNPROC=infinity
    LimitCORE=infinity
    TimeoutStartSec=0
    Delegate=yes
    KillMode=process
    Restart=on-failure
    StartLimitBurst=3
    StartLimitInterval=60s
    [Install]
    WantedBy=multi-user.target

    chmod +x /etc/systemd/system/docker.service
    systemctl daemon-reload
    systemctl start docker
    systemctl enable docker

  • 3.10 配置docker的cgroupdriver為systemd

      vi /etc/docker/daemon.json

    daemon.json內(nèi)容如下

    {
    "registry-mirrors": [
    "http://hub.geekery.cn",
    "http://hub.littlediary.cn",
    "http://docker.rainbond.cc",
    "https://q3vkr298.mirror.aliyuncs.com",
    "https://docker.1ms.run",
    "https://docker.xuanyuan.me"
    ],
    "exec-opts":["native.cgroupdriver=systemd"]
    }

      systemctl restart docker

  • 3.11 安裝kubeadm、kubectl、kubelet

      mkdir -p /k8s/kubernetes

    將kubernetes目錄下所有文件上傳至/k8s/kubernetes

      rpm -ivh /k8s/kubernetes/*.rpm
  systemctl enable --now kubelet

  • 3.12 導(dǎo)入k8s相關(guān)鏡像

      mkdir -p /k8s/kubadm-init-images

    將k8s_images目錄下flannel-cni-plugin.tar、flannel.tar、kube-proxy.tar 、pause.tar上傳至/k8s/kubadm-init-images

      find /k8s/kubadm-init-images/ -type f -name "*.tar" -exec docker load -i {} \;

  • 3.13 配置admin.conf

    將master節(jié)點(diǎn)/etc/kubernetes/admin.conf文件上傳至work節(jié)點(diǎn)/etc/kubernetes目錄下

      vi ~/.bash_profile

    export KUBECONFIG=/etc/kubernetes/admin.conf

      source ~/.bash_profile

  • 3.14 加入集群

      kubeadm join 172.20.76.186:6443 --token 1st15x.4npingkcb3uwul5k \
      --discovery-token-ca-cert-hash sha256:31188718933358f0d04103a96ad941c9d4880c0d99fdcc37e827642f6355220b

  • 3.15 查看node、pod狀態(tài)

      kubectl get nodes
  kubectl get pods -A

4、測(cè)試

kubectl create deployment nginx --image=nginx

kubectl expose deployment nginx --port=80 --type=NodePort

kubectl get pod,svc

5、離線安裝包

鏈接: https://pan.baidu.com/s/1jW_t5xQ4kErtXLALPmftyA 提取碼: iqq4

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