Linux安裝Kubernetes(k8s)超詳細(xì)教程

更新時間：2024年07月26日 08:31:05 作者：Meta39

Kubernetes是一個輕便的和可擴展的開源平臺,用于管理容器化應(yīng)用和服務(wù),通過Kubernetes能夠進行應(yīng)用的自動化部署和擴縮容,這篇文章主要給大家介紹了關(guān)于Linux安裝Kubernetes(k8s)的相關(guān)資料,需要的朋友可以參考下

修改為靜態(tài)ip
永久關(guān)閉防火墻（所有機器）
永久關(guān)閉selinux（所有機器）
永久禁止swap分區(qū)（所有機器）
永久設(shè)置hostname（根據(jù)機器分別設(shè)置mster、node1、node2）
在hosts文件添加內(nèi)容（僅master設(shè)置）
將橋接的IPv4流量傳遞到iptables的鏈（所有機器）
時間同步（所有機器）

所有機器安裝Docker、Kubeadm、Kubelet、Kubectl

安裝Docker
創(chuàng)建/etc/docker/daemon.json文件并設(shè)置docker倉庫為aliyun倉庫
重啟
添加yum軟件源kubernetes.repo為阿里云
安裝 kubelet、kubeadm、kubectl

部署Kubernetes

Kubernetes初始化【僅master執(zhí)行，過程可能會有點久，請耐心等待命令行輸出】
根據(jù)上面的提示執(zhí)行對應(yīng)的To start using your cluster, you need to run the following as a regular user：命令
node節(jié)點根據(jù)上面的提示執(zhí)行對應(yīng)的Then you can join any number of worker nodes by running the following on each as root：命令
node1和node2執(zhí)行命令
kube-flannel-ds-amd.yml文件
master部署CNI網(wǎng)絡(luò)插件【如果前面沒有把–network-plugin=cni移除并重啟kubelet，這步很可能會報錯】

master執(zhí)行測試Kubernetes（k8s）集群

如果nginx啟動失敗，則進行刪除

總結(jié)

系統(tǒng)初始化

生產(chǎn)環(huán)境肯定要更高配置，虛擬機以保守的最低配置。

機器	ip	規(guī)格
master	192.168.203.11	1核2線程、2G內(nèi)存、40G磁盤
node2	192.168.203.12	1核2線程、2G內(nèi)存、40G磁盤
node3	192.168.203.13	1核2線程、2G內(nèi)存、40G磁盤

修改為靜態(tài)ip

vi /etc/resolv.conf

追加內(nèi)容后保存并退出

nameserver 223.5.5.5
nameserver 223.6.6.6

sudo vi /etc/sysconfig/network-scripts/ifcfg-ens33

BOOTPROTO="dhcp"改成BOOTPROTO=“static”，如果是復(fù)制的機器UUID、IPADDR也要不一致

TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="static"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="no"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
IPV6_DEFROUTE="yes"
IPV6_FAILURE_FATAL="no"
IPV6_ADDR_GEN_MODE="stable-privacy"
NAME="ens33"
UUID="0ef41c81-2fa8-405d-9ab5-3ff34ac815cf"
DEVICE="ens33"
ONBOOT="yes"
IPADDR="192.168.203.11"
PREFIX="24"
GATEWAY="192.168.203.2"
IPV6_PRIVACY="no"

重啟網(wǎng)絡(luò)使配置生效

sudo systemctl restart network

永久關(guān)閉防火墻（所有機器）

sudo systemctl stop firewalld && systemctl disable firewalld

永久關(guān)閉selinux（所有機器）

sudo sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config

啟用selinux命令：setenforce 0【不需要執(zhí)行，只是作為一種記錄】

永久禁止swap分區(qū)（所有機器）

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

永久設(shè)置hostname（根據(jù)機器分別設(shè)置mster、node1、node2）

三臺機器分別為mster、node1、node2

sudo hostnamectl set-hostname master

使用hostnamectl或hostname命令驗證是否修改成功

在hosts文件添加內(nèi)容（僅master設(shè)置）

sudo cat >> /etc/hosts << EOF
192.168.203.11 master
192.168.203.12 node1
192.168.203.13 node2
EOF

將橋接的IPv4流量傳遞到iptables的鏈（所有機器）

sudo cat > /etc/sysctl.d/k8s.conf << EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
vm.swappiness = 0
EOF

使k8s.conf立即生效

sudo sysctl --system

時間同步（所有機器）

sudo yum install -y ntpdate

安裝好后執(zhí)行同步時間命令

sudo ntpdate time.windows.com

所有機器安裝Docker、Kubeadm、Kubelet、Kubectl

安裝Docker

安裝必要的一些系統(tǒng)工具

yum install -y net-tools
yum install -y wget
sudo yum install -y yum-utils device-mapper-persistent-data lvm2

安裝配置管理和設(shè)置鏡像源

sudo yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
sudo sed -i 's+download.docker.com+mirrors.aliyun.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo

查找Docker-CE的版本

sudo yum list docker-ce.x86_64 --showduplicates | sort -r

安裝指定版本的docker-ce

sudo yum -y install docker-ce-[VERSION]

sudo yum -y install docker-ce-18.06.1.ce-3.el7

啟動docker服務(wù)

sudo systemctl enable docker && sudo systemctl start docker

查看docker是否啟動成功【注意docker的Client和Server要一致，否則某些情況下會報錯】

sudo docker --version

創(chuàng)建/etc/docker/daemon.json文件并設(shè)置docker倉庫為aliyun倉庫

sudo cat > /etc/docker/daemon.json << EOF
{
	"registry-mirrors":["https://b9pmyelo.mirror.aliyuncs.com"]
}
EOF

重啟docker查看配置是否生效

sudo docker info

重啟

sudo reboot now

添加yum軟件源kubernetes.repo為阿里云

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

安裝 kubelet、kubeadm、kubectl

sudo yum install -y kubelet-1.18.0 kubeadm-1.18.0 kubectl-1.18.0

設(shè)置開機啟動和啟動

sudo systemctl enable kubelet && systemctl start kubelet

部署Kubernetes

apiserver-advertise-address表示master主機ip
image-repository表示鏡像倉庫
kubernetes-version表示k8s的版本，跟上面的kubelet、kubeadm、kubectl版本一致
service-cidr表示集群內(nèi)部虛擬網(wǎng)絡(luò)，Pod統(tǒng)一訪問入口
pod-network-cidr表示Pod網(wǎng)絡(luò)，與下面部署的CNI網(wǎng)絡(luò)組件yaml中保持一致

Kubernetes初始化【僅master執(zhí)行，過程可能會有點久，請耐心等待命令行輸出】

–v=5可加可不加，建議加，輸出完整的日志，方便排查問題

kubeadm init \
--v=5 \
--apiserver-advertise-address=192.168.203.11 \
--image-repository=registry.aliyuncs.com/google_containers \
--kubernetes-version=v1.18.0 \
--service-cidr=10.96.0.0/12 \
--pod-network-cidr=10.244.0.0/16

輸出以下內(nèi)容表示初始化成功

Your Kubernetes control-plane has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

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

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  https://kubernetes.io/docs/concepts/cluster-administration/addons/

Then you can join any number of worker nodes by running the following on each as root:

kubeadm join 192.168.203.11:6443 --token 51c0rb.ehwwxemgec75r1g6 \
    --discovery-token-ca-cert-hash sha256:fad429370f462b36d2651e3e37be4d4b34e63d0378966a1532442dc3f67e41b4

根據(jù)上面的提示執(zhí)行對應(yīng)的To start using your cluster, you need to run the following as a regular user：命令

master節(jié)點執(zhí)行，node節(jié)點不執(zhí)行
kubectl get nodes查看節(jié)點信息

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

node節(jié)點根據(jù)上面的提示執(zhí)行對應(yīng)的Then you can join any number of worker nodes by running the following on each as root：命令

node節(jié)點執(zhí)行，master節(jié)點不執(zhí)行

kubeadm join 192.168.203.11:6443 --token 51c0rb.ehwwxemgec75r1g6 \
    --discovery-token-ca-cert-hash sha256:fad429370f462b36d2651e3e37be4d4b34e63d0378966a1532442dc3f67e41b4

node1和node2執(zhí)行命令

安裝cni

kube-flannel-ds-amd.yml文件

---
apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
  name: psp.flannel.unprivileged
  annotations:
    seccomp.security.alpha.kubernetes.io/allowedProfileNames: docker/default
    seccomp.security.alpha.kubernetes.io/defaultProfileName: docker/default
    apparmor.security.beta.kubernetes.io/allowedProfileNames: runtime/default
    apparmor.security.beta.kubernetes.io/defaultProfileName: runtime/default
spec:
  privileged: false
  volumes:
    - configMap
    - secret
    - emptyDir
    - hostPath
  allowedHostPaths:
    - pathPrefix: "/etc/cni/net.d"
    - pathPrefix: "/etc/kube-flannel"
    - pathPrefix: "/run/flannel"
  readOnlyRootFilesystem: false
  # Users and groups
  runAsUser:
    rule: RunAsAny
  supplementalGroups:
    rule: RunAsAny
  fsGroup:
    rule: RunAsAny
  # Privilege Escalation
  allowPrivilegeEscalation: false
  defaultAllowPrivilegeEscalation: false
  # Capabilities
  allowedCapabilities: ['NET_ADMIN']
  defaultAddCapabilities: []
  requiredDropCapabilities: []
  # Host namespaces
  hostPID: false
  hostIPC: false
  hostNetwork: true
  hostPorts:
  - min: 0
    max: 65535
  # SELinux
  seLinux:
    # SELinux is unused in CaaSP
    rule: 'RunAsAny'
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: flannel
rules:
  - apiGroups: ['extensions']
    resources: ['podsecuritypolicies']
    verbs: ['use']
    resourceNames: ['psp.flannel.unprivileged']
  - apiGroups:
      - ""
    resources:
      - pods
    verbs:
      - get
  - apiGroups:
      - ""
    resources:
      - nodes
    verbs:
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - nodes/status
    verbs:
      - patch
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: flannel
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: flannel
subjects:
- kind: ServiceAccount
  name: flannel
  namespace: kube-system
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: flannel
  namespace: kube-system
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: kube-flannel-cfg
  namespace: kube-system
  labels:
    tier: node
    app: flannel
data:
  cni-conf.json: |
    {
      "name": "cbr0",
      "cniVersion": "0.3.1",
      "plugins": [
        {
          "type": "flannel",
          "delegate": {
            "hairpinMode": true,
            "isDefaultGateway": true
          }
        },
        {
          "type": "portmap",
          "capabilities": {
            "portMappings": true
          }
        }
      ]
    }
  net-conf.json: |
    {
      "Network": "10.244.0.0/16",
      "Backend": {
        "Type": "vxlan"
      }
    }
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: kube-flannel-ds-amd64
  namespace: kube-system
  labels:
    tier: node
    app: flannel
spec:
  selector:
    matchLabels:
      app: flannel
  template:
    metadata:
      labels:
        tier: node
        app: flannel
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: beta.kubernetes.io/os
                    operator: In
                    values:
                      - linux
                  - key: beta.kubernetes.io/arch
                    operator: In
                    values:
                      - amd64
      hostNetwork: true
      tolerations:
      - operator: Exists
        effect: NoSchedule
      serviceAccountName: flannel
      initContainers:
      - name: install-cni
        image: quay.io/coreos/flannel:v0.13.0-rc2
        command:
        - cp
        args:
        - -f
        - /etc/kube-flannel/cni-conf.json
        - /etc/cni/net.d/10-flannel.conflist
        volumeMounts:
        - name: cni
          mountPath: /etc/cni/net.d
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      containers:
      - name: kube-flannel
        image: quay.io/coreos/flannel:v0.13.0-rc2
        command:
        - /opt/bin/flanneld
        args:
        - --ip-masq
        - --kube-subnet-mgr
        resources:
          requests:
            cpu: "100m"
            memory: "50Mi"
          limits:
            cpu: "100m"
            memory: "50Mi"
        securityContext:
          privileged: false
          capabilities:
            add: ["NET_ADMIN"]
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        volumeMounts:
        - name: run
          mountPath: /run/flannel
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      volumes:
        - name: run
          hostPath:
            path: /run/flannel
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: flannel-cfg
          configMap:
            name: kube-flannel-cfg
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: kube-flannel-ds-arm64
  namespace: kube-system
  labels:
    tier: node
    app: flannel
spec:
  selector:
    matchLabels:
      app: flannel
  template:
    metadata:
      labels:
        tier: node
        app: flannel
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: beta.kubernetes.io/os
                    operator: In
                    values:
                      - linux
                  - key: beta.kubernetes.io/arch
                    operator: In
                    values:
                      - arm64
      hostNetwork: true
      tolerations:
      - operator: Exists
        effect: NoSchedule
      serviceAccountName: flannel
      initContainers:
      - name: install-cni
        image: quay-mirror.qiniu.com/coreos/flannel:v0.11.0-arm64
        command:
        - cp
        args:
        - -f
        - /etc/kube-flannel/cni-conf.json
        - /etc/cni/net.d/10-flannel.conflist
        volumeMounts:
        - name: cni
          mountPath: /etc/cni/net.d
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      containers:
      - name: kube-flannel
        image: quay-mirror.qiniu.com/coreos/flannel:v0.11.0-arm64
        command:
        - /opt/bin/flanneld
        args:
        - --ip-masq
        - --kube-subnet-mgr
        resources:
          requests:
            cpu: "100m"
            memory: "50Mi"
          limits:
            cpu: "100m"
            memory: "50Mi"
        securityContext:
          privileged: false
          capabilities:
             add: ["NET_ADMIN"]
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        volumeMounts:
        - name: run
          mountPath: /run/flannel
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      volumes:
        - name: run
          hostPath:
            path: /run/flannel
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: flannel-cfg
          configMap:
            name: kube-flannel-cfg
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: kube-flannel-ds-arm
  namespace: kube-system
  labels:
    tier: node
    app: flannel
spec:
  selector:
    matchLabels:
      app: flannel
  template:
    metadata:
      labels:
        tier: node
        app: flannel
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: beta.kubernetes.io/os
                    operator: In
                    values:
                      - linux
                  - key: beta.kubernetes.io/arch
                    operator: In
                    values:
                      - arm
      hostNetwork: true
      tolerations:
      - operator: Exists
        effect: NoSchedule
      serviceAccountName: flannel
      initContainers:
      - name: install-cni
        image: quay-mirror.qiniu.com/coreos/flannel:v0.11.0-arm
        command:
        - cp
        args:
        - -f
        - /etc/kube-flannel/cni-conf.json
        - /etc/cni/net.d/10-flannel.conflist
        volumeMounts:
        - name: cni
          mountPath: /etc/cni/net.d
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      containers:
      - name: kube-flannel
        image: quay-mirror.qiniu.com/coreos/flannel:v0.11.0-arm
        command:
        - /opt/bin/flanneld
        args:
        - --ip-masq
        - --kube-subnet-mgr
        resources:
          requests:
            cpu: "100m"
            memory: "50Mi"
          limits:
            cpu: "100m"
            memory: "50Mi"
        securityContext:
          privileged: false
          capabilities:
             add: ["NET_ADMIN"]
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        volumeMounts:
        - name: run
          mountPath: /run/flannel
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      volumes:
        - name: run
          hostPath:
            path: /run/flannel
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: flannel-cfg
          configMap:
            name: kube-flannel-cfg
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: kube-flannel-ds-ppc64le
  namespace: kube-system
  labels:
    tier: node
    app: flannel
spec:
  selector:
    matchLabels:
      app: flannel
  template:
    metadata:
      labels:
        tier: node
        app: flannel
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: beta.kubernetes.io/os
                    operator: In
                    values:
                      - linux
                  - key: beta.kubernetes.io/arch
                    operator: In
                    values:
                      - ppc64le
      hostNetwork: true
      tolerations:
      - operator: Exists
        effect: NoSchedule
      serviceAccountName: flannel
      initContainers:
      - name: install-cni
        image: quay-mirror.qiniu.com/coreos/flannel:v0.11.0-ppc64le
        command:
        - cp
        args:
        - -f
        - /etc/kube-flannel/cni-conf.json
        - /etc/cni/net.d/10-flannel.conflist
        volumeMounts:
        - name: cni
          mountPath: /etc/cni/net.d
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      containers:
      - name: kube-flannel
        image: quay-mirror.qiniu.com/coreos/flannel:v0.11.0-ppc64le
        command:
        - /opt/bin/flanneld
        args:
        - --ip-masq
        - --kube-subnet-mgr
        resources:
          requests:
            cpu: "100m"
            memory: "50Mi"
          limits:
            cpu: "100m"
            memory: "50Mi"
        securityContext:
          privileged: false
          capabilities:
             add: ["NET_ADMIN"]
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        volumeMounts:
        - name: run
          mountPath: /run/flannel
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      volumes:
        - name: run
          hostPath:
            path: /run/flannel
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: flannel-cfg
          configMap:
            name: kube-flannel-cfg
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: kube-flannel-ds-s390x
  namespace: kube-system
  labels:
    tier: node
    app: flannel
spec:
  selector:
    matchLabels:
      app: flannel
  template:
    metadata:
      labels:
        tier: node
        app: flannel
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: beta.kubernetes.io/os
                    operator: In
                    values:
                      - linux
                  - key: beta.kubernetes.io/arch
                    operator: In
                    values:
                      - s390x
      hostNetwork: true
      tolerations:
      - operator: Exists
        effect: NoSchedule
      serviceAccountName: flannel
      initContainers:
      - name: install-cni
        image: quay-mirror.qiniu.com/coreos/flannel:v0.11.0-s390x
        command:
        - cp
        args:
        - -f
        - /etc/kube-flannel/cni-conf.json
        - /etc/cni/net.d/10-flannel.conflist
        volumeMounts:
        - name: cni
          mountPath: /etc/cni/net.d
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      containers:
      - name: kube-flannel
        image: quay-mirror.qiniu.com/coreos/flannel:v0.11.0-s390x
        command:
        - /opt/bin/flanneld
        args:
        - --ip-masq
        - --kube-subnet-mgr
        resources:
          requests:
            cpu: "100m"
            memory: "50Mi"
          limits:
            cpu: "100m"
            memory: "50Mi"
        securityContext:
          privileged: false
          capabilities:
             add: ["NET_ADMIN"]
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        volumeMounts:
        - name: run
          mountPath: /run/flannel
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      volumes:
        - name: run
          hostPath:
            path: /run/flannel
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: flannel-cfg
          configMap:
            name: kube-flannel-cfg

docker pull quay.io/coreos/flannel:v0.13.0-rc2
kubectl apply -f kube-flannel-ds-amd.yml

kubectl get pod -n kube-system 查看kube-flannel-ds-XXX 是否為runnin狀態(tài)

systemctl restart kubelet
kubectl get pod -n kube-system

master執(zhí)行

kubectl get node

node1和node2節(jié)點處于Ready狀態(tài)

[root@master ~]# kubectl get node
NAME     STATUS   ROLES    AGE   VERSION
master   Ready    master   50m   v1.18.0
node1    Ready    <none>   49m   v1.18.0
node2    Ready    <none>   49m   v1.18.0

master部署CNI網(wǎng)絡(luò)插件【如果前面沒有把–network-plugin=cni移除并重啟kubelet，這步很可能會報錯】

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
kubectl get pods -n kube-system
kubectl get node

master執(zhí)行測試Kubernetes（k8s）集群

kubectl create deployment nginx --image=nginx
kubectl expose deployment nginx --port=80 --type=NodePort
kubectl get pod,svc

輸出如下

NAME                 TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
service/kubernetes   ClusterIP   10.96.0.1      <none>        443/TCP        21m
service/nginx        NodePort    10.108.8.133   <none>        80:30008/TCP   111s

如果nginx啟動失敗，則進行刪除

kubectl delete service nginx

總結(jié)

到此這篇關(guān)于Linux安裝Kubernetes(k8s)的文章就介紹到這了,更多相關(guān)Linux安裝k8s內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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