最新版K8S安装完后没有docker命令

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索姆拉 2024-09-14 16:34:37

文章标签 kubernetes docker k8s json linux 文章分类 Docker 云计算

链接：https://pan.baidu.com/s/1PBlZkD4FVuxoJW41cjzpBw
提取码：6666

1.修改主机名

k8s-master:

hostnamectl set-hostname m1

k8s-node1:

hostnamectl set-hostname n1

以下都是二台服务器同时操作请按图片操作打开键盘模式

最新版K8S安装完后没有docker命令_json

2.防火墙关闭

systemctl stop firewalld
systemctl disable firewalld

3.关闭selinux

setenforce 0 # 临时关闭
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config # 永久关闭

4.关闭swap

swapoff -a # 临时关闭；关闭swap主要是为了性能考虑
sed -ri 's/.*swap.*/#&/' /etc/fstab
free # 可以通过这个命令查看swap是否关闭了

最新版K8S安装完后没有docker命令_k8s_02

时间同步

yum install ntpdate -y
ntpdate time.windows.com

5.将桥接的IPv4流量传递到iptables的链

cat > /etc/sysctl.d/k8s.conf << EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF

sysctl --system

6.添加主机名与IP对应的关系 ( master上操作 )

vim /etc/hosts

192.168.181.128 k8s-master
192.168.181.129 k8s-node-1

7.准备 cfssl 证书生成工具 ( master上操作 )

cfssl 是一个开源的证书管理工具，使用 json 文件生成证书，相比 openssl 更方便使用。找任意一台服务器操作，这里用 Master 节点

wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd64
wget https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64
wget https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64
chmod +x cfssl_linux-amd64 cfssljson_linux-amd64 cfssl-certinfo_linux-amd64
mv cfssl_linux-amd64 /usr/local/bin/cfssl
mv cfssljson_linux-amd64 /usr/local/bin/cfssljson
mv cfssl-certinfo_linux-amd64 /usr/bin/cfssl-certinfo
chmod +x /usr/bin/cfssl*

7.1生成 Etcd 证书（1）自签证书颁发机构（CA）创建工作目录：

mkdir -p ~/TLS/{etcd,k8s}

cd TLS/etcd

7.2自签 CA

cat > ca-config.json << EOF
{
  "signing": {
    "default": {
      "expiry": "87600h"
    },
    "profiles": {
      "www": {
         "expiry": "87600h",
         "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ]
      }
    }
  }
}
EOF

cat > ca-csr.json << EOF
{
    "CN": "etcd CA",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing"
        }
    ]
}
EOF

7.3生成证书：

cfssl gencert -initca ca-csr.json | cfssljson -bare ca -

ls *pem

7.4使用自签 CA 签发 Etcd HTTPS 证书创建证书申请文件：(修改对应的master和node的IP地址)

cat > server-csr.json << EOF
{
    "CN": "etcd",
    "hosts": [
    "192.168.31.71",
    "192.168.31.72",
    "192.168.31.73"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "BeiJing",
            "ST": "BeiJing"
        }
    ]
}
EOF

7.5注：上述文件 hosts 字段中 IP 为所有 etcd 节点的集群内部通信 IP，一个都不能少！为了方便后期扩容可以多写几个预留的 IP。生成证书：

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=www server-csr.json | cfssljson -bare server ls server*pem

8.从 Github 下载二进制文件下载地址：

https://github.com/etcd-io/etcd/releases

git下载太慢，我下载保持在了百度云

链接：https://pan.baidu.com/s/1xGbuTDcWy6wmbqLvMxWsRQ
提取码：ob9k
复制这段内容后打开百度网盘手机App，操作更方便哦

9.部署 Etcd 集群以下在节点 1 上操作，为简化操作，待会将节点 1 生成的所有文件拷贝到节点 2 和节点 3

（1）创建工作目录并解压二进制包

mkdir /opt/etcd/{bin,cfg,ssl} -p
tar zxvf etcd-v3.4.14-linux-amd64.tar.gz
mv etcd-v3.4.14-linux-amd64/{etcd,etcdctl} /opt/etcd/bin/

10.创建etcd.conf （修改对应的master的ip地址）

cat > /opt/etcd/cfg/etcd.conf << EOF
#[Member]
ETCD_NAME="etcd-1"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://192.168.31.71:2380"
ETCD_LISTEN_CLIENT_URLS="https://192.168.31.71:2379"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.31.71:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.31.71:2379"
ETCD_INITIAL_CLUSTER="etcd-1=https://192.168.31.71:2380,etcd-2=https://192.168.31.72:2380,etcd-3=https://192.168.31.73:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
EOF

ETCD_NAME：节点名称，集群中唯一
ETCD_DATA_DIR：数据目录
ETCD_LISTEN_PEER_URLS：集群通信监听地址
ETCD_LISTEN_CLIENT_URLS：客户端访问监听地址
ETCD_INITIAL_ADVERTISE_PEER_URLS：集群通告地址
ETCD_ADVERTISE_CLIENT_URLS：客户端通告地址
ETCD_INITIAL_CLUSTER：集群节点地址
ETCD_INITIAL_CLUSTER_TOKEN：集群 Token
ETCD_INITIAL_CLUSTER_STATE：加入集群的当前状态，new 是新集群，existing 表示加入已有集群

11.创建etcd.service

cat > /usr/lib/systemd/system/etcd.service << EOF
[Unit]
Description=Etcd Server
After=network.target
After=network-online.target
Wants=network-online.target
[Service]
Type=notify
EnvironmentFile=/opt/etcd/cfg/etcd.conf
ExecStart=/opt/etcd/bin/etcd \
--cert-file=/opt/etcd/ssl/server.pem \
--key-file=/opt/etcd/ssl/server-key.pem \
--peer-cert-file=/opt/etcd/ssl/server.pem \
--peer-key-file=/opt/etcd/ssl/server-key.pem \
--trusted-ca-file=/opt/etcd/ssl/ca.pem \
--peer-trusted-ca-file=/opt/etcd/ssl/ca.pem \
--logger=zap
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
EOF

12.拷贝刚才生成的证书把刚才生成的证书拷贝到配置文件中的路径：

cp ~/TLS/etcd/ca*pem ~/TLS/etcd/server*pem /opt/etcd/ssl/

13.启动并设置开机启动

systemctl daemon-reload
systemctl start etcd  #启动后会卡住因为需要和node节点一起执行改命令
systemctl enable etcd

14.将上面节点 1 所有生成的文件拷贝到节点 2 和节点 3

scp -r /opt/etcd/ root@192.168.31.72:/opt/

scp /usr/lib/systemd/system/etcd.service root@192.168.31.72:/usr/lib/systemd/system/

scp -r /opt/etcd/ root@192.168.31.73:/opt/

scp /usr/lib/systemd/system/etcd.service root@192.168.31.73:/usr/lib/systemd/system/

15.然后在节点 2 和节点 3 分别修改 etcd.conf 配置文件中的节点名称和当前服务器 IP：

#[Member] ETCD_NAME=“etcd-1” # 修改此处，节点 2 改为 etcd-2，节点 3 改为 etcd-3

vi /opt/etcd/cfg/etcd.conf

最新版K8S安装完后没有docker命令_json_03

16.最后启动 etcd 并设置开机启动，同上。

systemctl daemon-reload

systemctl start etcd

systemctl enable etcd

需要二边一起执行

最新版K8S安装完后没有docker命令_docker_04

17.查看集群状态

/opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints="https://192.168.248.202:2379,https://192.168.248.220:2379,https://192.168.248.224:2379" endpoint status --write-out=table

最新版K8S安装完后没有docker命令_docker_05

18.安装docker 以下在所有节点操作。这里采用二进制安装，用 yum 安装也一样（多台节点安装可以采用键盘工具）

下载地址：https://download.docker.com/linux/static/stable/x86_64/docker-20.10.3.tgz

百度云下载地址

链接：https://pan.baidu.com/s/1HcdeAAakAIMpDBSbN1ABQg
提取码：w93r
复制这段内容后打开百度网盘手机App，操作更方便哦

tar zxvf docker-20.10.3.tgz 
mv docker/* /usr/bin

19.systemd 管理 docker

cat > /usr/lib/systemd/system/docker.service << EOF
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
[Install]
WantedBy=multi-user.target
EOF

20.配置阿里云加速

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

21.启动并设置开机启动

systemctl daemon-reload

systemctl start docker

systemctl enable docker

22.查询docker是否成功安装

docker -v

最新版K8S安装完后没有docker命令_linux_06

23.部署 Master Node

23.1 生成 kube-apiserver 证书（1）自签证书颁发机构（CA）

cd TLS/k8s

cat > ca-config.json << EOF
{
  "signing": {
    "default": {
      "expiry": "87600h"
    },
    "profiles": {
      "kubernetes": {
         "expiry": "87600h",
         "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ]
      }
    }
  }
}
EOF

cat > ca-csr.json << EOF
{
    "CN": "kubernetes",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing",
            "O": "k8s",
            "OU": "System"
        }
    ]
}
EOF

23.2生成证书

cfssl gencert -initca ca-csr.json | cfssljson -bare ca -
ls *pem

23.3使用自签 CA 签发 kube-apiserver HTTPS 证书创建证书申请文件：

cat > server-csr.json << EOF
{
    "CN": "kubernetes",
    "hosts": [
      "10.0.0.1",
      "127.0.0.1",
      "192.168.1.71",
      "192.168.1.72",
      "192.168.1.73",
      "192.168.1.74",
      "192.168.1.81",
      "192.168.1.82",
      "192.168.1.88",
      "kubernetes",
      "kubernetes.default",
      "kubernetes.default.svc",
      "kubernetes.default.svc.cluster",
      "kubernetes.default.svc.cluster.local"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "BeiJing",
            "ST": "BeiJing",
            "O": "k8s",
            "OU": "System"
        }
    ]
}
EOF

23.4生成证书：

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes server-csr.json | cfssljson -bare server


ls server*pem

24.从 Github 下载二进制文件

https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG- 1.20.1.md#v1183

最新版K8S安装完后没有docker命令_json_07

git下载太慢我保存在了百度云

链接：https://pan.baidu.com/s/1mQPZCxjCnjFxvorkQo9zcA
提取码：ue5n
复制这段内容后打开百度网盘手机App，操作更方便哦

25.解压二进制包

mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}
tar zxvf kubernetes-server-linux-amd64.tar.gz
cd kubernetes/server/bin
cp kube-apiserver kube-scheduler kube-controller-manager /opt/kubernetes/bin
cp kubectl /usr/bin/

26.部署 kube-apiserver

cat > /opt/kubernetes/cfg/kube-apiserver.conf << EOF
KUBE_APISERVER_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--etcd-servers=https://192.168.1.71:2379,https://192.168.1.72:2379,https://192.168.1.73:2379 \\
--bind-address=192.168.1.71 \\
--secure-port=6443 \\
--advertise-address=192.168.1.71 \\
--allow-privileged=true \\
--service-cluster-ip-range=10.0.0.0/24 \\
--enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction \\
--authorization-mode=RBAC,Node \\
--enable-bootstrap-token-auth=true \\
--token-auth-file=/opt/kubernetes/cfg/token.csv \\
--service-node-port-range=30000-32767 \\
--kubelet-client-certificate=/opt/kubernetes/ssl/server.pem \\
--kubelet-client-key=/opt/kubernetes/ssl/server-key.pem \\
--tls-cert-file=/opt/kubernetes/ssl/server.pem  \\
--tls-private-key-file=/opt/kubernetes/ssl/server-key.pem \\
--client-ca-file=/opt/kubernetes/ssl/ca.pem \\
--service-account-key-file=/opt/kubernetes/ssl/ca-key.pem \\
--etcd-cafile=/opt/etcd/ssl/ca.pem \\
--etcd-certfile=/opt/etcd/ssl/server.pem \\
--etcd-keyfile=/opt/etcd/ssl/server-key.pem \\
--audit-log-maxage=30 \\
--audit-log-maxbackup=3 \\
--audit-log-maxsize=100 \\
--audit-log-path=/opt/kubernetes/logs/k8s-audit.log"
EOF

注：上面两个\ \ 第一个是转义符，第二个是换行符，使用转义符是为了使用 EOF 保留换行符。
–logtostderr：启用日志
—v：日志等级
–log-dir：日志目录
–etcd-servers：etcd 集群地址
–bind-address：监听地址
–secure-port：https 安全端口
–advertise-address：集群通告地址
–allow-privileged：启用授权
–service-cluster-ip-range：Service 虚拟 IP 地址段
–enable-admission-plugins：准入控制模块
–authorization-mode：认证授权，启用 RBAC 授权和节点自管理
–enable-bootstrap-token-auth：启用 TLS bootstrap 机制
–token-auth-file：bootstrap token 文件
–service-node-port-range：Service nodeport 类型默认分配端口范围
–kubelet-client-xxx：apiserver 访问 kubelet 客户端证书
–tls-xxx-file：apiserver https 证书
–etcd-xxxfile：连接 Etcd 集群证书
–audit-log-xxx：审计日志

27.把刚才生成的证书拷贝到配置文件中的路径：

cp ~/TLS/k8s/ca*pem ~/TLS/k8s/server*pem /opt/kubernetes/ssl/

28.创建上述配置文件中 token 文件

cat > /opt/kubernetes/cfg/token.csv << EOF
c47ffb939f5ca36231d9e3121a252940,kubelet-bootstrap,10001,"system:node-bootstrapper"
EOF

格式：token，用户名，UID，用户组 token 也可自行生成替换：

head -c 16 /dev/urandom | od -An -t x | tr -d ' '

29.systemd 管理 apiserver

cat > /usr/lib/systemd/system/kube-apiserver.service << EOF
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-apiserver.conf
ExecStart=/opt/kubernetes/bin/kube-apiserver \$KUBE_APISERVER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

30.启动并设置开机启动

systemctl daemon-reload
systemctl start kube-apiserver
systemctl enable kube-apiserver
systemctl status kube-apiserver

31.授权 kubelet-bootstrap 用户允许请求证书

kubectl create clusterrolebinding kubelet-bootstrap \
--clusterrole=system:node-bootstrapper \
--user=kubelet-bootstrap

32.部署 kube-controller-manager

cat > /opt/kubernetes/cfg/kube-controller-manager.conf << EOF
KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--leader-elect=true \\
--master=127.0.0.1:8080 \\
--bind-address=127.0.0.1 \\
--allocate-node-cidrs=true \\
--cluster-cidr=10.244.0.0/16 \\
--service-cluster-ip-range=10.0.0.0/24 \\
--cluster-signing-cert-file=/opt/kubernetes/ssl/ca.pem \\
--cluster-signing-key-file=/opt/kubernetes/ssl/ca-key.pem  \\
--root-ca-file=/opt/kubernetes/ssl/ca.pem \\
--service-account-private-key-file=/opt/kubernetes/ssl/ca-key.pem \\
--experimental-cluster-signing-duration=87600h0m0s"
EOF

–master：通过本地非安全本地端口 8080 连接 apiserver。

–leader-elect：当该组件启动多个时，自动选举（HA）

–cluster-signing-cert-file/–cluster-signing-key-file：自动为 kubelet 颁发证书

的 CA，与 apiserver 保持一致

33.systemd 管理 controller-manager

cat > /usr/lib/systemd/system/kube-controller-manager.service << EOF
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-controller-manager.conf
ExecStart=/opt/kubernetes/bin/kube-controller-manager \$KUBE_CONTROLLER_MANAGER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

34. 启动并设置开机启动

systemctl daemon-reload
systemctl start kube-controller-manager
systemctl enable kube-controller-manager
systemctl status kube-controller-manager

35.部署 kube-scheduler

cat > /opt/kubernetes/cfg/kube-scheduler.conf << EOF
KUBE_SCHEDULER_OPTS="--logtostderr=false \
--v=2 \
--log-dir=/opt/kubernetes/logs \
--leader-elect \
--master=127.0.0.1:8080 \
--bind-address=127.0.0.1"
EOF

–master：通过本地非安全本地端口 8080 连接 apiserver。

–leader-elect：当该组件启动多个时，自动选举（HA）

cat > /usr/lib/systemd/system/kube-scheduler.service << EOF
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-scheduler.conf
ExecStart=/opt/kubernetes/bin/kube-scheduler \$KUBE_SCHEDULER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

36.启动并设置开机启动

systemctl daemon-reload
systemctl start kube-scheduler
systemctl enable kube-scheduler
systemctl status kube-scheduler

37.查看集群状态

所有组件都已经启动成功，通过 kubectl 工具查看当前集群组件状态：

kubectl get cs

最新版K8S安装完后没有docker命令_k8s_08

38.部署node节点

mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}
tar zxvf kubernetes-server-linux-amd64.tar.gz
cd kubernetes/server/bin

cp kubelet kube-proxy /opt/kubernetes/bin

cp kubectl /usr/bin/

cat > /opt/kubernetes/cfg/kubelet.conf << EOF
KUBELET_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--hostname-override=m1 \\
--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=lizhenliang/pause-amd64:3.0"
EOF

–hostname-override：显示名称，集群中唯一
–network-plugin：启用CNI
–kubeconfig：空路径，会自动生成，后面用于连接apiserver
–bootstrap-kubeconfig：首次启动向apiserver申请证书
–config：配置参数文件
–cert-dir：kubelet证书生成目录
–pod-infra-container-image：管理Pod网络容器的镜像

cat > /opt/kubernetes/cfg/kubelet-config.yml << EOF
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
address: 0.0.0.0
port: 10250
readOnlyPort: 10255
cgroupDriver: cgroupfs
clusterDNS:
- 10.0.0.2
clusterDomain: cluster.local 
failSwapOn: false
authentication:
  anonymous:
    enabled: false
  webhook:
    cacheTTL: 2m0s
    enabled: true
  x509:
    clientCAFile: /opt/kubernetes/ssl/ca.pem 
authorization:
  mode: Webhook
  webhook:
    cacheAuthorizedTTL: 5m0s
    cacheUnauthorizedTTL: 30s
evictionHard:
  imagefs.available: 15%
  memory.available: 100Mi
  nodefs.available: 10%
  nodefs.inodesFree: 5%
maxOpenFiles: 1000000
maxPods: 110
EOF

39.将master一些配置文件拷贝到node节点上

scp -r /opt/kubernetes/ssl root@192.168.181.134:/opt/kubernetes

40.生成bootstrap.kubeconfig文件

KUBE_APISERVER="https://192.168.1.71:6443" # apiserver IP:PORT
TOKEN="c47ffb939f5ca36231d9e3121a252940" # 与token.csv里保持一致

生成 kubelet bootstrap kubeconfig 配置文件

kubectl config set-cluster kubernetes \
  --certificate-authority=/opt/kubernetes/ssl/ca.pem \
  --embed-certs=true \
  --server=${KUBE_APISERVER} \
  --kubeconfig=bootstrap.kubeconfig
kubectl config set-credentials "kubelet-bootstrap" \
  --token=${TOKEN} \
  --kubeconfig=bootstrap.kubeconfig
kubectl config set-context default \
  --cluster=kubernetes \
  --user="kubelet-bootstrap" \
  --kubeconfig=bootstrap.kubeconfig
kubectl config use-context default --kubeconfig=bootstrap.kubeconfig


mv bootstrap.kubeconfig /opt/kubernetes/cfg

41.systemd管理kubelet

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

42.启动并设置开机启动

systemctl daemon-reload

systemctl start kubelet

systemctl enable kubelet

43.批准kubelet证书申请并加入集群(Master操作)

# 查看kubelet证书请求
kubectl get csr
NAME                                                   AGE    SIGNERNAME                                    REQUESTOR           CONDITION
node-csr-uCEGPOIiDdlLODKts8J658HrFq9CZ--K6M4G7bjhk8A   6m3s   kubernetes.io/kube-apiserver-client-kubelet   kubelet-bootstrap   Pending

# 批准申请
kubectl certificate approve node-csr-uCEGPOIiDdlLODKts8J658HrFq9CZ--K6M4G7bjhk8A

# 查看节点
kubectl get node

最新版K8S安装完后没有docker命令_docker_09

注：由于网络插件还没有部署，节点会没有准备就绪 NotReady

44、部署kube-proxy

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

cat > /opt/kubernetes/cfg/kube-proxy-config.yml << EOF
kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
bindAddress: 0.0.0.0
metricsBindAddress: 0.0.0.0:10249
clientConnection:
  kubeconfig: /opt/kubernetes/cfg/kube-proxy.kubeconfig
hostnameOverride: m1
clusterCIDR: 10.0.0.0/24
EOF

45.生成kube-proxy.kubeconfig文件(master生成在传到node)

# 切换工作目录
cd TLS/k8s

# 创建证书请求文件
cat > kube-proxy-csr.json << EOF
{
  "CN": "system:kube-proxy",
  "hosts": [],
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "L": "BeiJing",
      "ST": "BeiJing",
      "O": "k8s",
      "OU": "System"
    }
  ]
}
EOF

# 生成证书
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy

scp -r /root/TLS/k8s root@192.168.181.134:/opt/TLS/

46.生成kubeconfig文件

KUBE_APISERVER="https://192.168.1.71:6443"

kubectl config set-cluster kubernetes \
  --certificate-authority=/opt/kubernetes/ssl/ca.pem \
  --embed-certs=true \
  --server=${KUBE_APISERVER} \
  --kubeconfig=kube-proxy.kubeconfig
kubectl config set-credentials kube-proxy \
  --client-certificate=./kube-proxy.pem \
  --client-key=./kube-proxy-key.pem \
  --embed-certs=true \
  --kubeconfig=kube-proxy.kubeconfig
kubectl config set-context default \
  --cluster=kubernetes \
  --user=kube-proxy \
  --kubeconfig=kube-proxy.kubeconfig
kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig


cp kube-proxy.kubeconfig /opt/kubernetes/cfg/

47.systemd管理kube-proxy

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

48.启动并设置开机启动

systemctl daemon-reload

systemctl start kube-proxy

systemctl enable kube-proxy

systemctl status kube-proxy

49.部署CNI网络

下载地址：https://github.com/containernetworking/plugins/releases/download/v0.8.6/cni-plugins-linux-amd64-v0.8.6.tgz

node节点操作

mkdir /opt/cni/bin
tar zxvf cni-plugins-linux-amd64-v0.8.6.tgz -C /opt/cni/bin

master节点操作

链接：https://pan.baidu.com/s/1abu6OwzAgcRdpbEpPPpDnw
提取码：hvf3

kubectl apply -f kube-flannel.yml

最新版K8S安装完后没有docker命令_k8s_10

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