搭建一个完整的Kubernetes集群--部署Worker Node

mv /opt/kubernetes/bin/kubectl /usr/local/bin/

安装Docker
二进制包下载地址：https://download.docker.com/linux/static/stable/x86_64/

tar  zxvf docker-18.09.6.tgz 
mv docker/* /usr/bin
mkdir /etc/docker
touch /etc/docker/daemon.json
tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://nbmrsugx.mirror.aliyuncs.com"]
}
EOF

chmod 700 /etc/docker/daemon.json
mv docker.service /usr/lib/systemd/system

为了设置命令启动的
cat /usr/lib/systemd/system/docker.service
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service containerd.service
Wants=network-online.target

[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=0
RestartSec=2
Restart=always
StartLimitBurst=3
StartLimitInterval=60s
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TasksMax=infinity
Delegate=yes
KillMode=process

[Install]
WantedBy=multi-user.target

启动docker并设置docker开机启动
systemctl start docker
systemctl enable docker

部署node节点：kubelet kube-proxy

mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}

####
cat > /opt/kubernetes/cfg/kubelet.conf << EOF

KUBELET_OPTS="--logtostderr=false \
--v=2 \
--log-dir=/opt/kubernetes/logs \
--hostname-override=master1 \
--network-plugin=cni \
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \
--bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \
--config=/opt/kubernetes/cfg/kubelet-config.yml \
--cert-dir=/opt/kubernetes/ssl \
--pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0"
EOF

####
cat bootstrap.kubeconfig 

apiVersion: v1
clusters:
- cluster:
    certificate-authority: /opt/kubernetes/ssl/ca.pem
    server: https://10.100.97.78:6443
  name: kubernetes
contexts:
- context:
    cluster: kubernetes
    user: kubelet-bootstrap
  name: default
current-context: default
kind: Config
preferences: {}
users:
- name: kubelet-bootstrap
  user:
    token: de540eb9cde3bcccfedb764f7a89c7cd
 

####
 cat kube-proxy.conf 
KUBE_PROXY_OPTS="--logtostderr=false \
--v=2 \
--log-dir=/opt/kubernetes/logs \
--config=/opt/kubernetes/cfg/kube-proxy-config.yml"


####
cat kube-proxy.kubeconfig
apiVersion: v1
clusters:
- cluster:
    certificate-authority: /opt/kubernetes/ssl/ca.pem
    server: https://10.100.97.78:6443
  name: kubernetes
contexts:
- context:
    cluster: kubernetes
    user: kube-proxy
  name: default
current-context: default
kind: Config
preferences: {}
users:
- name: kube-proxy
  user:
    client-certificate: /opt/kubernetes/ssl/kube-proxy.pem
    client-key: /opt/kubernetes/ssl/kube-proxy-key.pem


#####
cat kube-proxy-config.yml 

kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
address: 0.0.0.0
metricsBindAddress: 0.0.0.0:10249
clientConnection:
  kubeconfig: /opt/kubernetes/cfg/kube-proxy.kubeconfig
hostnameOverride: master1
clusterCIDR: 10.0.0.0/24
mode: ipvs
ipvs:
  scheduler: "rr"
iptables:
  masqueradeAll: true


#####
cat > /usr/lib/systemd/system/kubelet.service << EOF
[Unit]
Description=Kubernetes Kubelet
After=docker.service
Before=docker.service

[Service]
EnvironmentFile=/opt/kubernetes/cfg/kubelet.conf
ExecStart=/opt/kubernetes/bin/kubelet $KUBELET_OPTS
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target

EOF

#######
cat > /usr/lib/systemd/system/kube-proxy.service << EOF
[Unit]
Description=Kubernetes Proxy
After=network.target

[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-proxy.conf
ExecStart=/opt/kubernetes/bin/kube-proxy $KUBE_PROXY_OPTS
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target
EOF


#####

scp ca.pem kube-proxy-key.pem kube-proxy.pem root@10.100.97.79:/opt/kubernetes/ssl

scp /usr/local/src/kubernetes/server/bin/kubelet  kube-proxy 
 root@10.100.97.79:/opt/kubernetes/bin/

/opt/kubernetes/bin/kubelet --logtostderr=false --v=2 --log-dir=/opt/kubernetes/logs --hostname-override=node1 --network-plugin=cni --kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig --bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig --config=/opt/kubernetes/cfg/kubelet-config.yml --cert-dir=/opt/kubernetes/ssl --pod-infra-container-image=registry-vpc.cn-zhangjiakou.aliyuncs.com/acs/pause-amd64:3.0

 systemctl start kubelet
 systemctl enable kubelet