kubernetes v1.18.2 二进制 双栈 controller-manager 部署

# 生效环境变量 部署etcd 时已经配置好
source  ./environment.sh
# 创建 Kubernetes Controller Manager 配置文件
cat << EOF | tee ${HOST_PATH}/cfssl/k8s/k8s-controller-manager.json
{
  "CN": "system:kube-controller-manager",
  "hosts": [""], 
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
            "ST": "$CERT_ST",
            "L": "$CERT_L",
      "O": "system:kube-controller-manager",
      "OU": "Kubernetes-manual"
    }
  ]
}
EOF
# 生成 Kubernetes Controller Manager 证书和私钥
cfssl gencert     -ca=${HOST_PATH}/cfssl/pki/k8s/k8s-ca.pem     -ca-key=${HOST_PATH}/cfssl/pki/k8s/k8s-ca-key.pem     -config=${HOST_PATH}/cfssl/ca-config.json     -profile=${CERT_PROFILE}     ${HOST_PATH}/cfssl/k8s/k8s-controller-manager.json |     cfssljson -bare ${HOST_PATH}/cfssl/pki/k8s/k8s-controller-manager
# 配置kube-controller-manager.kubeconfig
# 设置集群参数
kubectl config set-cluster ${CLUSTER_NAME} --certificate-authority=${HOST_PATH}/cfssl/pki/k8s/k8s-ca.pem --embed-certs=true --server=${KUBE_APISERVER} --kubeconfig=${HOST_PATH}/kubeconfig/kube-controller-manager.kubeconfig
# 设置客户端认证参数
kubectl config set-credentials system:kube-controller-manager --client-certificate=${HOST_PATH}/cfssl/pki/k8s/k8s-controller-manager.pem --embed-certs=true --client-key=${HOST_PATH}/cfssl/pki/k8s/k8s-controller-manager-key.pem --kubeconfig=${HOST_PATH}/kubeconfig/kube-controller-manager.kubeconfig
# 设置上下文参数
kubectl config set-context ${CLUSTER_NAME} --cluster=${CLUSTER_NAME} --user=system:kube-controller-manager --kubeconfig=${HOST_PATH}/kubeconfig/kube-controller-manager.kubeconfig
# 设置默认上下文
kubectl config use-context ${CLUSTER_NAME} --kubeconfig=${HOST_PATH}/kubeconfig/kube-controller-manager.kubeconfig
# 分发kubeconfig 及 证书文件到远程服务器
scp ./kubeconfig/kube-controller-manager.kubeconfig 192.168.2.175:/apps/k8s/config
scp ./kubeconfig/kube-controller-manager.kubeconfig 192.168.2.176:/apps/k8s/config
scp ./kubeconfig/kube-controller-manager.kubeconfig 192.168.2.177:/apps/k8s/config
# 分发证书
scp -r ./cfssl/pki/k8s/k8s-controller-manager* 192.168.2.175:/apps/k8s/ssl/k8s
scp -r ./cfssl/pki/k8s/k8s-controller-manager* 192.168.2.176:/apps/k8s/ssl/k8s
scp -r ./cfssl/pki/k8s/k8s-controller-manager* 192.168.2.177:/apps/k8s/ssl/k8s

kube-controller-manager 二进制文件准备

# 进入二进制所在文件夹
cd ${HOST_PATH}/kubernetes/server/bin
scp -r kube-controller-manager 192.168.2.175:/apps/k8s/bin
scp -r kube-controller-manager 192.168.2.176:/apps/k8s/bin
scp -r kube-controller-manager 192.168.2.177:/apps/k8s/bin

kube-controller-manager 配置文件

cd ${HOST_PATH}
# 创建 kube-controller-manager
cat << EOF | tee kube-controller-manager
KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=false \--leader-elect=true \--address=:: \--service-cluster-ip-range=10.66.0.0/16,8888:8000::/108 \--cluster-cidr=10.80.0.0/12,fd00::/108 \--node-cidr-mask-size-ipv4=24 \--node-cidr-mask-size-ipv6=121 \--cluster-name=kubernetes \--allocate-node-cidrs=true \--kubeconfig=/apps/k8s/config/kube-controller-manager.kubeconfig \--authentication-kubeconfig=/apps/k8s/config/kube-controller-manager.kubeconfig \--authorization-kubeconfig=/apps/k8s/config/kube-controller-manager.kubeconfig \--use-service-account-credentials=true \--client-ca-file=/apps/k8s/ssl/k8s/k8s-ca.pem \--requestheader-client-ca-file=/apps/k8s/ssl/k8s/k8s-ca.pem \--node-monitor-grace-period=40s \--node-monitor-period=5s \--pod-eviction-timeout=5m0s \--terminated-pod-gc-threshold=50 \--alsologtostderr=true \--cluster-signing-cert-file=/apps/k8s/ssl/k8s/k8s-ca.pem \--cluster-signing-key-file=/apps/k8s/ssl/k8s/k8s-ca-key.pem  \--deployment-controller-sync-period=10s \--experimental-cluster-signing-duration=87600h0m0s \--enable-garbage-collector=true \--root-ca-file=/apps/k8s/ssl/k8s/k8s-ca.pem \--service-account-private-key-file=/apps/k8s/ssl/k8s/k8s-ca-key.pem \--feature-gates=ServiceTopology=true,EndpointSlice=true,IPv6DualStack=true \--controllers=*,bootstrapsigner,tokencleaner \--horizontal-pod-autoscaler-use-rest-clients=true \--horizontal-pod-autoscaler-sync-period=10s \--flex-volume-plugin-dir=/apps/k8s/kubelet-plugins/volume \--tls-cert-file=/apps/k8s/ssl/k8s/k8s-controller-manager.pem \--tls-private-key-file=/apps/k8s/ssl/k8s/k8s-controller-manager-key.pem \--kube-api-qps=100 \--kube-api-burst=100 \--log-dir=/apps/k8s/log \--v=2"
EOF
# 分发配置文件所有节点配置文件一致
scp -r kube-controller-manager 192.168.2.175:/apps/k8s/conf
scp -r kube-controller-manager 192.168.2.176:/apps/k8s/conf
scp -r kube-controller-manager 192.168.2.177:/apps/k8s/conf

创建 kube-controller-manager systemd文件

cat << EOF | tee kube-controller-manager.service
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes

[Service]
LimitNOFILE=65535
LimitNPROC=65535
LimitCORE=infinity
LimitMEMLOCK=infinity
EnvironmentFile=-/apps/k8s/conf/kube-controller-manager
ExecStart=/apps/k8s/bin/kube-controller-manager \$KUBE_CONTROLLER_MANAGER_OPTS
Restart=on-failure
RestartSec=5
User=k8s

[Install]
WantedBy=multi-user.target
EOF
# 上传启动文件到服务器
scp kube-controller-manager.service 192.168.2.175:/usr/lib/systemd/system
scp  kube-controller-manager.service 192.168.2.176:/usr/lib/systemd/system
scp  kube-controller-manager.service 192.168.2.176:/usr/lib/systemd/system

kube-controller-manager 启动准备

# 给/apps/k8s k8s 用户权限
ssh  192.168.2.175 chown -R k8s:root /apps/k8s
ssh  192.168.2.176 chown -R k8s:root /apps/k8s
ssh  192.168.2.177 chown -R k8s:root /apps/k8s

kube-controller-manager

# 刷新service
ssh  192.168.2.175 systemctl daemon-reload
ssh  192.168.2.176 systemctl daemon-reload
ssh  192.168.2.177 systemctl daemon-reload
# 设置开机启动
ssh  192.168.2.175 systemctl enable kube-controller-manager.service
ssh  192.168.2.176 systemctl enable kube-controller-manager.service
ssh  192.168.2.177 systemctl enable kube-controller-manager.service
# 启动 kube-apiserver
ssh  192.168.2.175 systemctl  start kube-controller-manager.service
ssh  192.168.2.176 systemctl  start kube-controller-manager.service
ssh  192.168.2.177 systemctl  start kube-controller-manager.service
# 查看启动状态
ssh  192.168.2.175 systemctl  status kube-controller-manager.service
ssh  192.168.2.176 systemctl  status kube-controller-manager.service
ssh  192.168.2.177 systemctl  status kube-controller-manager.service

验证 kube-controller-manager 是否启动成功

:/tmp/sss# kubectl get cs
NAME                 STATUS      MESSAGE                                                                                     ERROR
scheduler            Unhealthy   Get http://127.0.0.1:10251/healthz: dial tcp 127.0.0.1:10251: connect: connection refused
controller-manager   Healthy     ok
etcd-1               Healthy     {"health":"true"}
etcd-0               Healthy     {"health":"true"}
etcd-2               Healthy     {"health":"true"}
# 查看kube-controller-manager master 节点 
:/tmp/ipv6# kubectl -n kube-system get endpoints kube-controller-manager -o yaml
apiVersion: v1
kind: Endpoints
metadata:
  annotations:
    control-plane.alpha.kubernetes.io/leader: ‘{"holderIdentity":"k8s-master-2_ef54341f-708b-460d-bd13-f7ae39a84385","leaseDurationSeconds":15,"acquireTime":"2020-05-07T08:27:17Z","renewTime":"2020-05-07T12:03:59Z","leaderTransitions":2}‘
  creationTimestamp: "2020-05-07T08:24:21Z"
  managedFields:
  - apiVersion: v1
    fieldsType: FieldsV1
    fieldsV1:
      f:metadata:
        f:annotations:
          .: {}
          f:control-plane.alpha.kubernetes.io/leader: {}
    manager: kube-controller-manager
    operation: Update
    time: "2020-05-07T12:03:59Z"
  name: kube-controller-manager
  namespace: kube-system
  resourceVersion: "36945"
  selfLink: /api/v1/namespaces/kube-system/endpoints/kube-controller-manager
  uid: 97a06254-a607-4a5c-877b-2412d61589e8
 # k8s-master-2 为master 节点。