devbox
木道寻08
这个屌丝很懒，什么也没留下！
关注作者
热门标签
热门文章
当前位置:   article > 正文

二进制部署k8s集群_二进制部署registry

作者：木道寻08 | 2024-07-14 16:28:58

赞

踩

二进制部署registry

二进制部署k8s集群

1、安装要求

在开始之前，部署 Kubernetes 集群机器需要满足以下几个条件：

  • 一台或多台机器，操作系统 CentOS7

  • 硬件配置：2GB 或更多 RAM，2 个 CPU 或更多 CPU，硬盘 30GB 或更多

  • 集群中所有机器之间网络互通

  • 可以访问外网，需要拉取镜像，如果服务器不能上网，需要提前下载镜像并导入节点

  • 禁止 swap 分区

2、准备环境
角色IP组件
m1(主节点)192.168.174.141kube-apiserver，kube-controller-manager，kube-scheduler，etcd
n1(工作节点)192.168.174.141kubelet，kube-proxy，docker etcd
3、操作系统初始化配

  • 修改主机名

    1. m1节点

      hostnamectl set-hostname m1

      • 1

    2. n1节点

      hostnamectl set-hostname n1

      • 1

  • 以下操作m1、n1相同

    1. 关闭防火墙

      systemctl stop firewalld
systemctl disable firewalld

      • 1
      • 2

    2. 关闭selinux

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

      • 1
      • 2

    3. 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

      • 1
      • 2
      • 3

    在这里插入图片描述

    1. 时间与windows同步

      yum install ntpdate -y
ntpdate time.windows.com

      • 1
      • 2

    2. 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

      • 1
      • 2
      • 3
      • 4
      sysctl --system

      • 1

    3. 添加主机名与IP对应的关系

      vim /etc/hosts

      • 1
      192.168.174.141 m1
192.168.174.142 n1

      • 1
      • 2
4、部署etcd集群，m1、n1节点都需要部署

  • 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速度太慢的话建议在windows用科学上网工具下载后传到centos，传过去的问题件一般没有w权限，需要添加权限)

    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*

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8

  • 创建工作目录

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

    • 1
    • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    cat > ca-csr.json << EOF
{
    "CN": "etcd CA",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing"
        }
    ]
}
EOF

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16

  • 生成证书

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

    • 1
    • 2

  • 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": [
    "192.168.174.141",
    "192.168.174.142"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "BeiJing",
            "ST": "BeiJing"
        }
    ]
}
EOF

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20

  • 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

    • 1
    • 2

  • 从 Github 下载二进制文件下载地址上传到centos(科学上网工具)

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

    • 1

  • 创建工作目录并解压二进制包

    mkdir /opt/etcd/{bin,cfg,ssl} -p
tar zxvf etcd-v3.4.18-linux-amd64.tar.gz
mv etcd-v3.4.18-linux-amd64/{etcd,etcdctl} /opt/etcd/bin/
cp /opt/etcd/bin/etcdctl /usr/bin

    • 1
    • 2
    • 3
    • 4

  • 创建etcd.conf （修改对应的master的ip地址）

    cat > /opt/etcd/cfg/etcd.conf << EOF
ETCD_OPTS="--name=etcd-1 \\
--data-dir=/var/lib/etcd/default.etcd \\
--listen-peer-urls=https://192.168.174.141:2380 \\
--listen-client-urls=https://192.168.174.141:2379,http://127.0.0.1:2379 \\
--advertise-client-urls=https://192.168.174.141:2379 \\
--initial-advertise-peer-urls=https://192.168.174.141:2380 \\
--initial-cluster=etcd-1=https://192.168.174.141:2380,etcd-2=https://192.168.174.142:2380 \\
--initial-cluster-token=etcd-cluster \\
--initial-cluster-state=new \\
--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"
EOF

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
  • 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 $ETCD_OPTS
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
EOF

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15

  • 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/

    • 1

  • 将上面节点 所有生成的文件拷贝到节点n1

    scp -r /opt/etcd/ root@192.168.174.142:/opt/
scp /usr/lib/systemd/system/etcd.service root@192.168.174.142:/usr/lib/systemd/system/

    • 1
    • 2

  • 在n1节点修改 etcd.conf 配置文件中的节点名称和当前服务器 IP

    vi /opt/etcd/cfg/etcd.conf

    • 1

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-icjxAsMh-1648631139053)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330155333302.png)]

  • 最后在n1和m1节点启动 etcd 并设置开机启动

    systemctl daemon-reload
systemctl start etcd
systemctl enable etcd
systemctl status etcd

    • 1
    • 2
    • 3
    • 4

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-KsVdj1yf-1648631139053)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330164442060.png)]

  • 在任何一个节点执行

    etcdctl put test hello

    • 1

  • 在其他节点查询，查到就说明集群搭建成功

    etcdctl get test

    • 1

  • 查看集群状态

    etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints="https://192.168.174.141:2379,https://192.168.174.142:2379" endpoint status --write-out=table

    • 1

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-VZnfUwvx-1648631139054)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330155832279.png)]

5、安装docker

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

  • 解压二进制包

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

    • 1
    • 2

  • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22

  • 配置阿里云加速

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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6

  • 启动并设置开机启动

    systemctl daemon-reload
systemctl start docker
systemctl enable docker
systemctl status docker

    • 1
    • 2
    • 3
    • 4

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-QNfpxc0M-1648631139054)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330164538591.png)]

  • 查询docker是否成功安装

    docker -v

    • 1

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-SJWXvSY7-1648631139054)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330160254338.png)]

6、部署Master Node

部署kube-apiserver开始

  • 生成 kube-apiserver 证书

    cd TLS/k8s

    • 1
    cat > ca-config.json << EOF
{
  "signing": {
    "default": {
      "expiry": "87600h"
    },
    "profiles": {
      "kubernetes": {
         "expiry": "87600h",
         "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ]
      }
    }
  }
}
EOF

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    cat > ca-csr.json << EOF
{
    "CN": "kubernetes",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing",
            "O": "k8s",
            "OU": "System"
        }
    ]
}
EOF

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18

  • 生成证书

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

    • 1
    • 2

  • 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",
      "192.168.174.141",
      "192.168.174.142",
      "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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29

  • 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

    • 1
    • 2

  • 从 Github 下载二进制文件上传到centos

    地址：https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.18.md#v1183

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-Gy5moTUp-1648631139054)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330160938644.png)]

  • 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/

    • 1
    • 2
    • 3
    • 4
    • 5

  • 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://192.168.174.141:2379,https://192.168.174.142:2379 \\
--bind-address=192.168.174.141 \\
--secure-port=6443 \\
--advertise-address=192.168.174.141 \\
--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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29

  • 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/

    • 1

  • 创建token 文件

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

    • 1
    • 2
    • 3

  • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11

  • 启动并设置开机启动

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

    • 1
    • 2
    • 3
    • 4

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-iKJyaae9-1648631139055)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330164600485.png)]

部署kube-apiserver完成

部署kube-controller-manager开始

  • 授权 kubelet-bootstrap 用户允许请求证书

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

    • 1

  • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16

  • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11

  • 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

    • 1
    • 2
    • 3
    • 4

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-YfrewVLt-1648631139055)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330164616974.png)]

部署kube-controller-manager完成

部署kube-scheduler开始==

  • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8

  • systemd 管理kube-scheduler

    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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11

  • 启动并设置开机启动

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

    • 1
    • 2
    • 3
    • 4

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-VsKEAWOT-1648631139055)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330164631323.png)]

部署kube-scheduler完成==

  • 查看集群状态

    kubectl get cs

    • 1

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-iKmjexsl-1648631139055)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330161752558.png)]

7、部署Worker Node

部署kubelet开始==

  • 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 kubelet kube-proxy /opt/kubernetes/bin
cp kubectl /usr/bin/

    • 1
    • 2
    • 3
    • 4
    • 5

  • 部署 kubelet

    cat > /opt/kubernetes/cfg/kubelet.conf << EOF
KUBELET_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--hostname-override=n1 \\
--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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32

  • 将master一些配置文件拷贝到node节点上

    scp -r /opt/kubernetes/ssl root@192.168.174.142:/opt/kubernetes

    • 1

  • 命令行直接运行命令生成bootstrap.kubeconfig文件

    KUBE_APISERVER="https://192.168.174.141:6443" # apiserver IP:PORT
TOKEN="c47ffb939f5ca36231d9e3121a252940" # 与token.csv里保持一致

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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16

  • 拷贝到配置文件夹

    mv bootstrap.kubeconfig /opt/kubernetes/cfg

    • 1

  • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12

  • 启动并设置开机启动

    systemctl daemon-reload
systemctl start kubelet
systemctl enable kubelet
systemctl status kubelet

    • 1
    • 2
    • 3
    • 4

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-W4KPGsEu-1648631139056)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330162518800.png)]

=部署kubelet完成===

部署kube-proxy开始

  • 批准kubelet证书申请并加入集群(Master节点操作)

    kubectl get csr

    • 1
    kubectl certificate approve node-csr-uCEGPOIiDdlLODKts8J658HrFq9CZ--K6M4G7bjhk8A

    • 1
    kubectl get node

    • 1

    注：由于网络插件还没有部署，节点会没有准备就绪 NotReady

  • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    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: n1
clusterCIDR: 10.0.0.0/24
EOF

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10

  • 生成证书请求文件(Master节点操作)

    cd ~/TLS/k8s

    • 1
    # 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20

  • 生成证书(Master节点操作)

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

    • 1

  • 发送到n1节点(Master节点操作)

    scp -r /root/TLS/k8s root@192.168.174.142:/opt/TLS/

    • 1

  • 命令行直接运行命令生成kubeconfig文件(Worker节点操作)

    KUBE_APISERVER="https://192.168.174.141:6443"
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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16

  • 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

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12

  • 启动并设置开机启动

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

    • 1
    • 2
    • 3
    • 4

    [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-DvD1lle0-1648631139056)(C:\Users\awd\AppData\Roaming\Typora\typora-user-images\image-20220330163352653.png)]

部署kube-proxy完成====

8、部署CNI网络

  • 先准备好 CNI 二进制文件，下载地址：https://github.com/containernetworking/plugins/releases/download/v0.8.6/cni-plugins-linux-amd64-v0.8.6.tgz

  • 上传到centos，解压二进制包并移动到默认工作目录(Worker节点操作)

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

    • 1
    • 2

  • 部署 CNI 网络(Master节点操作)

    链接：https://pan.baidu.com/s/1SVnH0DjMMD4gyUh2NishPg
    提取码：67di

    kubectl apply -f kube-flannel.yml

    • 1

    在这里插入图片描述

  • 部署nginx测试(Master节点操作)

    kubectl create deployment nginx --image=nginx
kubectl expose deployment nginx --port=80 --type-NodePort
kubectl get pods,svc

    • 1
    • 2
    • 3

    在这里插入图片描述

  • 通过worker节点的ip地址:33210可以访问说明集群搭建成功

声明：本文内容由网友自发贡献，不代表【wpsshop博客】立场，版权归原作者所有，本站不承担相应法律责任。如您发现有侵权的内容，请联系我们。转载请注明出处：https://www.wpsshop.cn/w/木道寻08/article/detail/825550
推荐阅读
相关标签

Copyright © 2003-2013 www.wpsshop.cn 版权所有，并保留所有权利。

  

闽ICP备14008679号