kubernetes v1.18.2二进制部署 ipv4 controller-manager 部署
签发 kube-controller-manager 证书
# 设置连接KUBE_APISERVER ip
export KUBE_APISERVER=https://127.0.0.1:5443
# 环境变量沿用kube-apiserver
# 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/k8skube-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/binkube-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=0.0.0.0 \--service-cluster-ip-range=10.66.0.0/16 \--cluster-cidr=10.80.0.0/12 \--node-cidr-mask-size=24 \--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 \--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/sss# 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_85edb989-d5fa-4be3-aaf2-7cb34aee72eb","leaseDurationSeconds":15,"acquireTime":"2020-05-06T10:03:30Z","renewTime":"2020-05-06T10:03:30Z","leaderTransitions":15}‘
creationTimestamp: "2020-05-06T09:59:07Z"
managedFields:
- apiVersion: v1
fieldsType: FieldsV1
fieldsV1:
f:metadata:
f:annotations:
.: {}
f:control-plane.alpha.kubernetes.io/leader: {}
manager: kube-controller-manager
operation: Update
time: "2020-05-06T10:03:30Z"
name: kube-controller-manager
namespace: kube-system
resourceVersion: "1969"
selfLink: /api/v1/namespaces/kube-system/endpoints/kube-controller-manager
uid: c4102892-c95c-487f-9bff-266f6898a4d2
# k8s-master-2 为master 节点。 相关推荐
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