• kubeadm搭建k8s 3master 高可用 keepalived + haproxy


    192.168.1.222 k8s-master11 m1
    192.168.1.223 k8s-master12 m2
    192.168.1.224 k8s-master13 m3
    192.168.1.225 k8s-node01 n1
    192.168.1.226 k8s-node02 n2
    

    keepalived和haproxy装在n1和n2上,VIP为   192.168.1.123 

    haproxy

    yum -y install haproxy keepalived
    [root@k8s-node01 docker]# cat /etc/haproxy/haproxy.cfg 
    global
        log 127.0.0.1 local3 info
        chroot      /var/lib/haproxy
        pidfile     /var/run/haproxy.pid
        maxconn     4000
        user        haproxy
        group       haproxy
        daemon
        stats socket /var/lib/haproxy/stats
    #---------------------------------------------------------------------
    defaults
        mode                    http
        log                     global
        option                  httplog
        option                  dontlognull
        option http-server-close
        option forwardfor       except 127.0.0.0/8
        option                  redispatch
        retries                 3
        timeout http-request    10s
        timeout queue           1m
        timeout connect         10s
        timeout client          1m
        timeout server          1m
        timeout http-keep-alive 10s
        timeout check           10s
        maxconn                 3000
    #---------------------------------------------------------------------
    frontend  k8s-api 
       bind *:6443
       mode tcp
       default_backend             apiserver
    #---------------------------------------------------------------------
    backend apiserver
        balance     roundrobin
        mode tcp
        server  k8s-master11 192.168.1.222:6443 check weight 1 maxconn 2000 check inter 2000 rise 2 fall 3
        server  k8s-master12 192.168.1.223:6443 check weight 1 maxconn 2000 check inter 2000 rise 2 fall 3
        server  k8s-master13 192.168.1.224:6443 check weight 1 maxconn 2000 check inter 2000 rise 2 fall 3
    

     keepalived

    [root@k8s-node01 docker]# cat /etc/keepalived/keepalived.conf 
    vrrp_script check_haproxy {
        script "/etc/keepalived/check_haproxy.sh"
        interval 3
    }
    vrrp_instance VI_1 {
        state MASTER
        interface ens33
        virtual_router_id 51
        priority 99
        advert_int 1
        authentication {
            auth_type PASS
            auth_pass 1111
        }
        virtual_ipaddress {
        192.168.1.123 
        }
         track_script {
            check_haproxy
         }
    }
    
    
    
    
    [root@k8s-node01 keepalived]# cat check_haproxy.sh 
    #!/bin/bash
    systemctl status haproxy > /dev/null
    if [[ $? != 0 ]];then
            echo "haproxy is down,close the keepalived"
            systemctl stop keepalived
    fi
    

      准备工作 参考  https://www.cnblogs.com/hanxing/p/16028100.html    (到 kubeadm init --config=kubeadm-config.yaml   之前)

    kubeadm-config

    [root@k8s-master11 ~]# cat kubeadm-config.yaml 
    apiVersion: kubeadm.k8s.io/v1beta2
    bootstrapTokens:
    - groups:
      - system:bootstrappers:kubeadm:default-node-token
      token: abcdef.0123456789abcdef
      ttl: 24h0m0s
      usages:
      - signing
      - authentication
    kind: InitConfiguration
    localAPIEndpoint:
      advertiseAddress: 192.168.1.222    #这里别写vip,就写m1的ip
      bindPort: 6443
    nodeRegistration:
      criSocket: /var/run/dockershim.sock
      name: k8s-master11
      taints:
      - effect: NoSchedule
        key: node-role.kubernetes.io/master
    ---
    apiServer:
      certSANs:
      - "192.168.1.123"         #VIP地址 
      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
    #imageRepository: registry.cn-hangzhou.aliyuncs.com/google_containers   #阿里云的镜像站点
    controlPlaneEndpoint: "192.168.1.123:6443"    #VIP的地址和端口
    kind: ClusterConfiguration
    kubernetesVersion: v1.15.1
    networking:
      dnsDomain: cluster.local
      serviceSubnet: 10.96.0.0/12
      podSubnet: "10.244.0.0/16"
      scheduler: {}
    ---
      apiVersion: kubeproxy.config.k8s.io/v1alpha1
      kind: KubeProxyConfiguration
      featureGates:
      SupportIPVSProxyMode: true
      mode: ipvs
    

     

     m1操作

    [root@k8s-master11 ~]# kubeadm init --config=kubeadm-config.yaml --experimental-upload-certs      
    Flag --experimental-upload-certs has been deprecated, use --upload-certs instead
    W0327 13:21:37.385237   58645 strict.go:54] error unmarshaling configuration schema.GroupVersionKind{Group:"kubeadm.k8s.io", Version:"v1beta2", Kind:"ClusterConfiguration"}: error unmarshaling JSON: while decoding JSON: json: unknown field "scheduler"
    W0327 13:21:37.387762   58645 strict.go:54] error unmarshaling configuration schema.GroupVersionKind{Group:"kubeproxy.config.k8s.io", Version:"v1alpha1", Kind:"KubeProxyConfiguration"}: error unmarshaling JSON: while decoding JSON: json: unknown field "SupportIPVSProxyMode"
    [init] Using Kubernetes version: v1.15.1
    [preflight] Running pre-flight checks
            [WARNING IsDockerSystemdCheck]: detected "cgroupfs" as the Docker cgroup driver. The recommended driver is "systemd". Please follow the guide at https://kubernetes.io/docs/setup/cri/
            [WARNING SystemVerification]: this Docker version is not on the list of validated versions: 20.10.13. Latest validated version: 18.09
    [preflight] Pulling images required for setting up a Kubernetes cluster
    [preflight] This might take a minute or two, depending on the speed of your internet connection
    [preflight] You can also perform this action in beforehand using 'kubeadm config images pull'
    [kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
    [kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
    [kubelet-start] Activating the kubelet service
    [certs] Using certificateDir folder "/etc/kubernetes/pki"
    [certs] Generating "ca" certificate and key
    [certs] Generating "apiserver-kubelet-client" certificate and key
    [certs] Generating "apiserver" certificate and key
    [certs] apiserver serving cert is signed for DNS names [k8s-master11 kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local] and IPs [10.96.0.1 192.168.1.222 192.168.1.123 192.168.1.123]
    [certs] Generating "front-proxy-ca" certificate and key
    [certs] Generating "front-proxy-client" certificate and key
    [certs] Generating "etcd/ca" certificate and key
    [certs] Generating "etcd/peer" certificate and key
    [certs] etcd/peer serving cert is signed for DNS names [k8s-master11 localhost] and IPs [192.168.1.222 127.0.0.1 ::1]
    [certs] Generating "etcd/healthcheck-client" certificate and key
    [certs] Generating "etcd/server" certificate and key
    [certs] etcd/server serving cert is signed for DNS names [k8s-master11 localhost] and IPs [192.168.1.222 127.0.0.1 ::1]
    [certs] Generating "apiserver-etcd-client" certificate and key
    [certs] Generating "sa" key and public key
    [kubeconfig] Using kubeconfig folder "/etc/kubernetes"
    [kubeconfig] Writing "admin.conf" kubeconfig file
    [kubeconfig] Writing "kubelet.conf" kubeconfig file
    [kubeconfig] Writing "controller-manager.conf" kubeconfig file
    [kubeconfig] Writing "scheduler.conf" kubeconfig file
    [control-plane] Using manifest folder "/etc/kubernetes/manifests"
    [control-plane] Creating static Pod manifest for "kube-apiserver"
    [control-plane] Creating static Pod manifest for "kube-controller-manager"
    [control-plane] Creating static Pod manifest for "kube-scheduler"
    [etcd] Creating static Pod manifest for local etcd in "/etc/kubernetes/manifests"
    [wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/etc/kubernetes/manifests". This can take up to 4m0s
    [kubelet-check] Initial timeout of 40s passed.
    [apiclient] All control plane components are healthy after 45.547778 seconds
    [upload-config] Storing the configuration used in ConfigMap "kubeadm-config" in the "kube-system" Namespace
    [kubelet] Creating a ConfigMap "kubelet-config-1.15" in namespace kube-system with the configuration for the kubelets in the cluster
    [upload-certs] Storing the certificates in Secret "kubeadm-certs" in the "kube-system" Namespace
    [upload-certs] Using certificate key:
    a5608f6eb8831204eeb138e9d2ae553a1c59c76c2c5547e3d41303c5f86974e0
    [mark-control-plane] Marking the node k8s-master11 as control-plane by adding the label "node-role.kubernetes.io/master=''"
    [mark-control-plane] Marking the node k8s-master11 as control-plane by adding the taints [node-role.kubernetes.io/master:NoSchedule]
    [bootstrap-token] Using token: abcdef.0123456789abcdef
    [bootstrap-token] Configuring bootstrap tokens, cluster-info ConfigMap, RBAC Roles
    [bootstrap-token] configured RBAC rules to allow Node Bootstrap tokens to post CSRs in order for nodes to get long term certificate credentials
    [bootstrap-token] configured RBAC rules to allow the csrapprover controller automatically approve CSRs from a Node Bootstrap Token
    [bootstrap-token] configured RBAC rules to allow certificate rotation for all node client certificates in the cluster
    [bootstrap-token] Creating the "cluster-info" ConfigMap in the "kube-public" namespace
    [addons] Applied essential addon: CoreDNS
    [addons] Applied essential addon: kube-proxy
    
    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/
    
    You can now join any number of the control-plane node running the following command on each as root:
    
      kubeadm join 192.168.1.123:6443 --token abcdef.0123456789abcdef \
        --discovery-token-ca-cert-hash sha256:dd05586525feb49ccd6e19b894b6a30d1f7d0ee5ef8cc9345ec63665f8011fd5 \
        --control-plane --certificate-key a5608f6eb8831204eeb138e9d2ae553a1c59c76c2c5547e3d41303c5f86974e0
    
    Please note that the certificate-key gives access to cluster sensitive data, keep it secret!
    As a safeguard, uploaded-certs will be deleted in two hours; If necessary, you can use 
    "kubeadm init phase upload-certs --upload-certs" to reload certs afterward.
    
    Then you can join any number of worker nodes by running the following on each as root:
    
    kubeadm join 192.168.1.123:6443 --token abcdef.0123456789abcdef \
        --discovery-token-ca-cert-hash sha256:dd05586525feb49ccd6e19b894b6a30d1f7d0ee5ef8cc9345ec63665f8011fd5 
    

      

    m2和m3操作上面日志的第一个join,n1和n2操作第二个join,再分别执行

    mkdir -p $HOME/.kube ;ln -s  /etc/kubernetes/admin.conf  $HOME/.kube/config 
    

      

    m1操作flannel

    [root@k8s-master11 ~]# kubectl apply -f fla.yml 
    podsecuritypolicy.policy/psp.flannel.unprivileged created
    clusterrole.rbac.authorization.k8s.io/flannel created
    clusterrolebinding.rbac.authorization.k8s.io/flannel created
    serviceaccount/flannel created
    configmap/kube-flannel-cfg created
    daemonset.apps/kube-flannel-ds-amd64 created
    daemonset.apps/kube-flannel-ds-arm64 created
    daemonset.apps/kube-flannel-ds-arm created
    daemonset.apps/kube-flannel-ds-ppc64le created
    daemonset.apps/kube-flannel-ds-s390x created
    

     fla.yml 内容如下  这里用的是 kube-flannel-ds-amd64

    [root@k8s-master11 ~]# cat fla.yml 
    ---
    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: kubernetes.io/os
                        operator: In
                        values:
                          - linux
                      - key: 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:v0.12.0-amd64
            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:v0.12.0-amd64
            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: kubernetes.io/os
                        operator: In
                        values:
                          - linux
                      - key: kubernetes.io/arch
                        operator: In
                        values:
                          - arm64
          hostNetwork: true
          tolerations:
          - operator: Exists
            effect: NoSchedule
          serviceAccountName: flannel
          initContainers:
          - name: install-cni
            image: quay.io/coreos/flannel:v0.12.0-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.io/coreos/flannel:v0.12.0-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: kubernetes.io/os
                        operator: In
                        values:
                          - linux
                      - key: kubernetes.io/arch
                        operator: In
                        values:
                          - arm
          hostNetwork: true
          tolerations:
          - operator: Exists
            effect: NoSchedule
          serviceAccountName: flannel
          initContainers:
          - name: install-cni
            image: quay.io/coreos/flannel:v0.12.0-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.io/coreos/flannel:v0.12.0-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: kubernetes.io/os
                        operator: In
                        values:
                          - linux
                      - key: kubernetes.io/arch
                        operator: In
                        values:
                          - ppc64le
          hostNetwork: true
          tolerations:
          - operator: Exists
            effect: NoSchedule
          serviceAccountName: flannel
          initContainers:
          - name: install-cni
            image: quay.io/coreos/flannel:v0.12.0-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.io/coreos/flannel:v0.12.0-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: kubernetes.io/os
                        operator: In
                        values:
                          - linux
                      - key: kubernetes.io/arch
                        operator: In
                        values:
                          - s390x
          hostNetwork: true
          tolerations:
          - operator: Exists
            effect: NoSchedule
          serviceAccountName: flannel
          initContainers:
          - name: install-cni
            image: quay.io/coreos/flannel:v0.12.0-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.io/coreos/flannel:v0.12.0-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
    

      

    搭建完毕,检查集群

    [root@k8s-master11 ~]# kubectl get node
    NAME           STATUS   ROLES    AGE    VERSION
    k8s-master11   Ready    master   106m   v1.15.1
    k8s-master12   Ready    master   100m   v1.15.1
    k8s-master13   Ready    <none>   95m    v1.15.1
    k8s-node01     Ready    <none>   95m    v1.15.1
    k8s-node02     Ready    <none>   95m    v1.15.1
    

      

     

  • 相关阅读:
    DNSMAQ 搭建 DNS 服务
    kubernetes跨网段pod网络不通问题
    复制密钥到目标机器
    修改博客园css样式
    删除harbor项目下的所有镜像
    菜鸟 Python 100例
    清理日志
    UNIX基础--控制台和终端
    FreeBSD安装桌面环境
    Gentoo启动菜单设置:使用官方LiveDVD Grub主题
  • 原文地址:https://www.cnblogs.com/hanxing/p/16062860.html
Copyright © 2020-2023  润新知