k8s1.26.x 最新版本二进制方式部署

标签（空格分隔）： kubernetes系列

一：系统环境初始化

1.1 系统环境

系统：
    almalinux 8.7x64

cat /etc/hosts
----
172.16.10.81    flyfish81
172.16.10.82    flyfish82
172.16.10.83    flyfish83
172.16.10.84    flyfish84
172.16.10.85    flyfish85
-----
本次部署为前三台almalinux 8.6x64

flyfish81 做 为 master 部署
flyfish82 、flyfish83 作为worker 节点

1.2 下载工具准备

1.下载kubernetes1.26.+的二进制包
github二进制包下载地址：https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.26.md
 
wget https://dl.k8s.io/v1.26.0/kubernetes-server-linux-amd64.tar.gz
 
2.下载etcdctl二进制包
github二进制包下载地址：https://github.com/etcd-io/etcd/releases
 
wget https://github.com/etcd-io/etcd/releases/download/v3.5.5/etcd-v3.5.5-linux-amd64.tar.gz
 
3.docker-ce二进制包下载地址
二进制包下载地址：https://download.docker.com/linux/static/stable/x86_64/
 
这里需要下载20.10.+版本
 
wget https://download.docker.com/linux/static/stable/x86_64/docker-20.10.22.tgz

4.下载cri-docker 
二进制包下载地址：https://github.com/Mirantis/cri-dockerd/releases/
 
wget  https://ghproxy.com/https://github.com/Mirantis/cri-dockerd/releases/download/v0.2.6/cri-dockerd-0.2.6.amd64.tgz


5.containerd二进制包下载
github下载地址：https://github.com/containerd/containerd/releases
 
containerd下载时下载带cni插件的二进制包。
 
wget https://github.com/containerd/containerd/releases/download/v1.6.6/cri-containerd-cni-1.6.6-linux-amd64.tar.gz

6.下载cfssl二进制包
github二进制包下载地址：https://github.com/cloudflare/cfssl/releases
 
wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssl_1.6.1_linux_amd64
wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssljson_1.6.1_linux_amd64
wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssl-certinfo_1.6.1_linux_amd64
 
7.cni插件下载
github下载地址：https://github.com/containernetworking/plugins/releases
 
wget https://github.com/containernetworking/plugins/releases/download/v1.1.1/cni-plugins-linux-amd64-v1.1.1.tgz
 
8.crictl客户端二进制下载
github下载：https://github.com/kubernetes-sigs/cri-tools/releases
 
wget https://github.com/kubernetes-sigs/cri-tools/releases/download/v1.24.2/crictl-v1.24.2-linux-amd64.tar.gz

1.3系统初始化

# 安装依赖包
yum -y install wget jq psmisc vim net-tools nfs-utils telnet yum-utils device-mapper-persistent-data lvm2 git network-scripts tar curl -y
# 关闭防火墙 与selinux 
systemctl disable --now firewalld 
setenforce 0
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config
# 关闭交换分区
sed -ri 's/.*swap.*/#&/' /etc/fstab
swapoff -a && sysctl -w vm.swappiness=0
 
cat /etc/fstab
# /dev/mapper/centos-swap swap                    swap    defaults        0 0

# 

# 配置系统句柄数
ulimit -SHn 65535
cat >> /etc/security/limits.conf <<EOF
* soft nofile 655360
* hard nofile 131072
* soft nproc 655350
* hard nproc 655350
* seft memlock unlimited
* hard memlock unlimitedd
EOF

# 做系统无密码互信登陆
yum install -y sshpass
ssh-keygen -f /root/.ssh/id_rsa -P ''
export IP="172.16.10.81	172.16.10.82 	172.16.10.83"
export SSHPASS=flyfish225
for HOST in $IP;do
     sshpass -e ssh-copy-id -o StrictHostKeyChecking=no $HOST
done

# 升级系统内核
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
yum install https://www.elrepo.org/elrepo-release-8.el8.elrepo.noarch.rpm
修改阿里云 镜像源
mv /etc/yum.repos.d/elrepo.repo /etc/yum.repos.d/elrepo.repo.bak 
vim /etc/yum.repos.d/elrepo.repo 
----
[elrepo-kernel]
name=elrepoyum
baseurl=https://mirrors.aliyun.com/elrepo/kernel/el8/x86_64/
enable=1
gpgcheck=0
----
yum  --enablerepo=elrepo-kernel  install  kernel-ml

#使用序号为0的内核，序号0是前面查出来的可用内核编号
grub2-set-default 0

#生成 grub 配置文件并重启
grub2-mkconfig -o /boot/grub2/grub.cfg
reboot


启用ipvs

yum install ipvsadm ipset sysstat conntrack libseccomp -y
mkdir -p /etc/modules-load.d/
cat >> /etc/modules-load.d/ipvs.conf <<EOF 
ip_vs
ip_vs_rr
ip_vs_wrr
ip_vs_sh
nf_conntrack
ip_tables
ip_set
xt_set
ipt_set
ipt_rpfilter
ipt_REJECT
ipip
EOF
 
systemctl restart systemd-modules-load.service
 
lsmod | grep -e ip_vs -e nf_conntrack
ip_vs_sh               16384  0
ip_vs_wrr              16384  0
ip_vs_rr               16384  0
ip_vs                 180224  6 ip_vs_rr,ip_vs_sh,ip_vs_wrr
nf_conntrack          176128  1 ip_vs
nf_defrag_ipv6         24576  2 nf_conntrack,ip_vs
nf_defrag_ipv4         16384  1 nf_conntrack
libcrc32c              16384  3 nf_conntrack,xfs,ip_vs

k8s1.26.x 最新版本二进制方式部署

1.4 修改内核参数

cat <<EOF > /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-iptables = 1
vm.overcommit_memory = 1
vm.panic_on_oom = 0
fs.inotify.max_user_watches = 89100
fs.file-max = 52706963
fs.nr_open = 52706963
net.netfilter.nf_conntrack_max = 2310720
net.ipv4.tcp_keepalive_time = 600
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_keepalive_intvl = 15
net.ipv4.tcp_max_tw_buckets = 36000
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_max_orphans = 327680
net.ipv4.tcp_orphan_retries = 3
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_timestamps = 0
net.core.somaxconn = 16384
net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.default.disable_ipv6 = 0
net.ipv6.conf.lo.disable_ipv6 = 0
net.ipv6.conf.all.forwarding = 1
 
EOF

modprobe br_netfilter
lsmod |grep conntrack
modprobe ip_conntrack

sysctl -p /etc/sysctl.d/k8s.conf

k8s1.26.x 最新版本二进制方式部署

1.5 所有节点安装docker

下载地址：https://download.docker.com/linux/static/stable/x86_64/docker-20.10.22.tgz

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。
在 flyfish81/flyfish82/flyfish83 节点上面安装

# 二进制包下载地址：https://download.docker.com/linux/static/stable/x86_64/
# wget https://download.docker.com/linux/static/stable/x86_64/docker-20.10.22.tgz
 
#解压
tar xf docker-*.tgz 
#拷贝二进制文件
cp docker/* /usr/bin/
#创建containerd的service文件,并且启动
cat >/etc/systemd/system/containerd.service <<EOF
[Unit]
Description=containerd container runtime
Documentation=https://containerd.io
After=network.target local-fs.target
[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/bin/containerd
Type=notify
Delegate=yes
KillMode=process
Restart=always
RestartSec=5
LimitNPROC=infinity
LimitCORE=infinity
LimitNOFILE=1048576
TasksMax=infinity
OOMScoreAdjust=-999
[Install]
WantedBy=multi-user.target
EOF
systemctl enable --now containerd.service
#准备docker的service文件
cat > /etc/systemd/system/docker.service <<EOF
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service containerd.service
Wants=network-online.target
Requires=docker.socket containerd.service
[Service]
Type=notify
ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
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
OOMScoreAdjust=-500
[Install]
WantedBy=multi-user.target
EOF
#准备docker的socket文件
cat > /etc/systemd/system/docker.socket <<EOF
[Unit]
Description=Docker Socket for the API
[Socket]
ListenStream=/var/run/docker.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker
[Install]
WantedBy=sockets.target
EOF
#创建docker组
groupadd docker
#启动docker
systemctl enable --now docker.socket  && systemctl enable --now docker.service
#验证
docker info
cat >/etc/docker/daemon.json <<EOF
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "registry-mirrors": [
    "https://docker.mirrors.ustc.edu.cn",
    "http://hub-mirror.c.163.com"
  ],
  "max-concurrent-downloads": 10,
  "log-driver": "json-file",
  "log-level": "warn",
  "log-opts": {
    "max-size": "10m",
    "max-file": "3"
    },
  "data-root": "/var/lib/docker"
}
EOF
systemctl restart docker

k8s1.26.x 最新版本二进制方式部署

安装cri-dockerd

# 由于1.24以及更高版本不支持docker所以安装cri-docker
# 下载cri-docker 
# wget  https://ghproxy.com/https://github.com/Mirantis/cri-dockerd/releases/download/v0.2.5/cri-dockerd-0.2.5.amd64.tgz
 
# 解压cri-docker
tar -zxvf cri-dockerd-0.3.0.amd64.tgz
cp cri-dockerd/cri-dockerd  /usr/bin/
chmod +x /usr/bin/cri-dockerd
 
# 写入启动配置文件
cat >  /usr/lib/systemd/system/cri-docker.service <<EOF
[Unit]
Description=CRI Interface for Docker Application Container Engine
Documentation=https://docs.mirantis.com
After=network-online.target firewalld.service docker.service
Wants=network-online.target
Requires=cri-docker.socket
 
[Service]
Type=notify
ExecStart=/usr/bin/cri-dockerd --network-plugin=cni --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.7
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
EOF
 
# 写入socket配置文件
cat > /usr/lib/systemd/system/cri-docker.socket <<EOF
[Unit]
Description=CRI Docker Socket for the API
PartOf=cri-docker.service
 
[Socket]
ListenStream=%t/cri-dockerd.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker
 
[Install]
WantedBy=sockets.target
EOF
 
# 进行启动cri-docker
systemctl daemon-reload ; systemctl enable cri-docker --now

k8s1.26.x 最新版本二进制方式部署

二：部署etcd 服务

2.1 设置关于签名证书

下载：
wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssl_1.6.2_linux_amd64
wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssljson_1.6.2_linux_amd64
wget https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssl-certinfo_1.6.1_linux_amd64

mv cfssl_1.6.1_linux_amd64  /usr/bin/cfssl
mv cfssljson_1.6.1_linux_amd64 /usr/bin/cfssljson
mv cfssl-certinfo_1.6.1_linux_amd64 /usr/bin/cfssl-certinfo
chmod +x /usr/bin/cfssl*

k8s1.26.x 最新版本二进制方式部署

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

cd ~/TLS/etcd
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

生成证书：
cfssl gencert -initca ca-csr.json | cfssljson -bare ca -

会生成ca.pem和ca-key.pem文件

k8s1.26.x 最新版本二进制方式部署

#使用自签CA签发Etcd HTTPS证书
#创建证书申请文件：
cat > server-csr.json << EOF
{
    "CN": "etcd",
    "hosts": [
    "172.16.10.81",
    "172.16.10.82",
    "172.16.10.83",
    "172.16.10.84",
    "172.16.10.85",
    "172.16.10.86",
    "172.16.10.87",
    "172.16.10.88",
    "172.16.10.89",
    "172.16.10.200"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "BeiJing",
            "ST": "BeiJing"
        }
    ]
}
EOF

#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

#会生成server.pem和server-key.pem文件。

k8s1.26.x 最新版本二进制方式部署

1. Etcd 的概念：
Etcd 是一个分布式键值存储系统，Kubernetes使用Etcd进行数据存储，所以先准备一个Etcd数据库，为解决Etcd单点故障，应采用集群方式部署，这里使用3台组建集群，可容忍1台机器故障，当然，你也可以使用5台组建集群，可容忍2台机器故障。

下载地址： https://github.com/etcd-io/etcd/releases

以下在节点flyfish81上操作，为简化操作，待会将节点flyfish81生成的所有
文件拷贝到节点flyfish82和节点flyfish83.

2. 安装配置etcd

mkdir /opt/etcd/{bin,cfg,ssl} -p
tar zxvf etcd-v3.5.5-linux-amd64.tar.gz
mv etcd-v3.5.5-linux-amd64/{etcd,etcdctl} /opt/etcd/bin/

k8s1.26.x 最新版本二进制方式部署

#flyfish81 etcd 配置文件

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://172.16.10.81:2380"
ETCD_LISTEN_CLIENT_URLS="https://172.16.10.81:2379"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://172.16.10.81:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://172.16.10.81:2379"
ETCD_INITIAL_CLUSTER="etcd-1=https://172.16.10.81:2380,etcd-2=https://172.16.10.82:2380,etcd-3=https://172.16.10.83:2380"
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

3. systemd管理etcd

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

k8s1.26.x 最新版本二进制方式部署

2.2 安装etcd

#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/

5. 同步所有主机
scp -r /opt/etcd/ root@172.16.10.82:/opt/
scp -r /opt/etcd/ root@172.16.10.83:/opt/
scp /usr/lib/systemd/system/etcd.service root@172.16.10.82:/usr/lib/systemd/system/
scp /usr/lib/systemd/system/etcd.service root@172.16.10.83:/usr/lib/systemd/system/

k8s1.26.x 最新版本二进制方式部署

flyfish82 etcd 

vim /opt/etcd/cfg/etcd.conf 
-----
#[Member]
ETCD_NAME="etcd-2"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://172.16.10.82:2380"
ETCD_LISTEN_CLIENT_URLS="https://172.16.10.82:2379"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://172.16.10.82:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://172.16.10.82:2379"
ETCD_INITIAL_CLUSTER="etcd-1=https://172.16.10.81:2380,etcd-2=https://172.16.10.82:2380,etcd-3=https://172.16.10.83:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
----

k8s1.26.x 最新版本二进制方式部署

flyfish83 etcd 

vim /opt/etcd/cfg/etcd.conf 
----
#[Member]
ETCD_NAME="etcd-3"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://172.16.10.83:2380"
ETCD_LISTEN_CLIENT_URLS="https://172.16.10.83:2379"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://172.16.10.83:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://172.16.10.83:2379"
ETCD_INITIAL_CLUSTER="etcd-1=https://172.16.10.81:2380,etcd-2=https://172.16.10.82:2380,etcd-3=https://172.16.10.83:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
-----

k8s1.26.x 最新版本二进制方式部署

启动etcd:
systemctl daemon-reload
systemctl start etcd
systemctl enable etcd

k8s1.26.x 最新版本二进制方式部署

验证：
     ETCDCTL_API=3 /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://172.16.10.81:2379,https://172.16.10.82:2379,https://172.16.10.83:2379" endpoint health --write-out=table

k8s1.26.x 最新版本二进制方式部署

三：部署k8s1.26.x

3.1 k8s 1.26.x 最新版本下载

1. 从Github下载二进制文件
下载地址： 
https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.26.md
注：打开链接你会发现里面有很多包，下载一个server包就够了，包含了Master和Worker Node二进制文件。

3.2 生成k8s1.26.x 证书

#创建k8s 的kube-apiserver证书
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

生成证书：
cfssl gencert -initca ca-csr.json | cfssljson -bare ca -

会生成ca.pem和ca-key.pem文件。

k8s1.26.x 最新版本二进制方式部署

#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",
      "172.16.10.81",
      "172.16.10.82",
      "172.16.10.83",
      "172.16.10.84",
      "172.16.10.85",
      "172.16.10.86",
      "172.16.10.87",
      "172.16.10.88",
      "172.16.10.89",
      "172.16.10.200",
      "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

#注：上述文件hosts字段中IP为所有Master/LB/VIP 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。

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

#会生成server.pem和server-key.pem文件。

k8s1.26.x 最新版本二进制方式部署

3.3 安装k8s 1.26.x

#部署k8s1.26.0 

#解压二进制包
mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs} 
tar -zxvf kubernetes-server-linux-v1.26.0-amd64.tar
cd kubernetes/server/bin
cp kube-apiserver kube-scheduler kube-controller-manager /opt/kubernetes/bin
cp kubectl /usr/bin/
cp kubectl /usr/local/bin/

k8s1.26.x 最新版本二进制方式部署

3.3.1 部署kube-apiserver

#部署kube-apiserver
#创建配置文件

vim /opt/kubernetes/cfg/kube-apiserver.conf
-----
KUBE_APISERVER_OPTS="--enable-admission-plugins=NamespaceLifecycle,NodeRestriction,LimitRanger,ServiceAccount,DefaultStorageClass,ResourceQuota \
--v=2 \
--etcd-servers=https://172.16.10.81:2379,https://172.16.10.82:2379,https://172.16.10.83:2379 \
--bind-address=172.16.10.81 \
--secure-port=6443 \
--advertise-address=172.16.10.81 \
--allow-privileged=true \
--service-cluster-ip-range=10.0.0.0/24 \
--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 \
--service-account-issuer=api \
--service-account-signing-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 \
--requestheader-client-ca-file=/opt/kubernetes/ssl/ca.pem \
--proxy-client-cert-file=/opt/kubernetes/ssl/server.pem \
--proxy-client-key-file=/opt/kubernetes/ssl/server-key.pem \
--requestheader-allowed-names=kubernetes \
--requestheader-extra-headers-prefix=X-Remote-Extra- \
--requestheader-group-headers=X-Remote-Group \
--requestheader-username-headers=X-Remote-User \
--enable-aggregator-routing=true \
--audit-log-maxage=30 \
--audit-log-maxbackup=3 \
--audit-log-maxsize=100 \
--service-account-issuer=https://kubernetes.default.svc.cluster.local \
--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname  \
--audit-log-path=/opt/kubernetes/logs/k8s-audit.log"
------

k8s1.26.x 最新版本二进制方式部署

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。
• ---v：日志等级
• --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
• 1.20版本必须加的参数：--service-account-issuer，--service-account-signing-key-file
• --etcd-xxxfile：连接Etcd集群证书
• --audit-log-xxx：审计日志
• 启动聚合层相关配置：--requestheader-client-ca-file，--proxy-client-cert-file，--proxy-client-key-file，--requestheader-allowed-names，--requestheader-extra-headers-prefix，--requestheader-group-headers，--requestheader-username-headers，--enable-aggregator-routing

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

#启用 TLS Bootstrapping 机制
TLS Bootstraping：Master apiserver启用TLS认证后，Node节点kubelet和
kube-proxy要与kube-apiserver进行通信，必须使用CA签发的有效证书才可以，
当Node节点很多时，这种客户端证书颁发需要大量工作，同样也会增加集群扩展复杂度。
为了简化流程，Kubernetes引入了TLS bootstraping机制来自动颁发客户端证书，
kubelet会以一个低权限用户自动向apiserver申请证书，
kubelet的证书由apiserver动态签署。
所以强烈建议在Node上使用这种方式，目前主要用于kubelet，kube-proxy
还是由我们统一颁发一个证书。

k8s1.26.x 最新版本二进制方式部署

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 ' '

k8s1.26.x 最新版本二进制方式部署

#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

#启动并设置开机启动
systemctl daemon-reload
systemctl start kube-apiserver 
systemctl enable kube-apiserver

k8s1.26.x 最新版本二进制方式部署

3.3.2 部署kube-controller-manager

#部署kube-controller-manager
#1. 创建配置文件
cat > /opt/kubernetes/cfg/kube-controller-manager.conf << EOF
KUBE_CONTROLLER_MANAGER_OPTS=" \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--leader-elect=true \\
--kubeconfig=/opt/kubernetes/cfg/kube-controller-manager.kubeconfig \\
--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 \\
--cluster-signing-duration=87600h0m0s"
EOF

•--kubeconfig：连接apiserver配置文件
•--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

2. 生成kubeconfig文件
生成kube-controller-manager证书：
# 切换工作目录
cd ~/TLS/k8s

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

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

k8s1.26.x 最新版本二进制方式部署

生成kubeconfig文件（以下是shell命令，直接在终端执行）：
KUBE_CONFIG="/opt/kubernetes/cfg/kube-controller-manager.kubeconfig"
KUBE_APISERVER="https://172.16.10.81:6443"

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

k8s1.26.x 最新版本二进制方式部署

# 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

#启动并设置开机启动
systemctl daemon-reload
systemctl start kube-controller-manager
systemctl enable kube-controller-manager

k8s1.26.x 最新版本二进制方式部署

3.3.3 部署kube-scheduler

部署kube-scheduler
1. 创建配置文件
cat > /opt/kubernetes/cfg/kube-scheduler.conf << EOF
KUBE_SCHEDULER_OPTS=" \\
--v=2 \\


--leader-elect \\
--kubeconfig=/opt/kubernetes/cfg/kube-scheduler.kubeconfig \\
--bind-address=127.0.0.1"
EOF

•--kubeconfig：连接apiserver配置文件
•--leader-elect：当该组件启动多个时，自动选举（HA）

k8s1.26.x 最新版本二进制方式部署

#生成kubeconfig文件
生成kube-scheduler证书：
# 切换工作目录
cd ~/TLS/k8s

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

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

k8s1.26.x 最新版本二进制方式部署

生成kubeconfig文件：
KUBE_CONFIG="/opt/kubernetes/cfg/kube-scheduler.kubeconfig"
KUBE_APISERVER="https://172.16.10.81:6443"

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

k8s1.26.x 最新版本二进制方式部署

3. systemd管理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

启动并设置开机启动
systemctl daemon-reload
systemctl start kube-scheduler
systemctl enable kube-scheduler

k8s1.26.x 最新版本二进制方式部署

3.3.4 查看集群状态

#查看集群状态
#生成kubectl连接集群的证书：
cd /root/TLS/k8s/
cat > admin-csr.json <<EOF
{
  "CN": "admin",
  "hosts": [],
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "L": "BeiJing",
      "ST": "BeiJing",
      "O": "system:masters",
      "OU": "System"
    }
  ]
}
EOF

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

k8s1.26.x 最新版本二进制方式部署

生成kubeconfig文件：
mkdir /root/.kube

KUBE_CONFIG="/root/.kube/config"
KUBE_APISERVER="https://172.16.10.81:6443"

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

k8s1.26.x 最新版本二进制方式部署

通过kubectl工具查看当前集群组件状态：
kubectl get cs
NAME                STATUS    MESSAGE             ERROR
scheduler             Healthy   ok                  
controller-manager       Healthy   ok                  
etcd-2               Healthy   {"health":"true"}   
etcd-1               Healthy   {"health":"true"}   
etcd-0               Healthy   {"health":"true"} 

如上输出说明Master节点组件运行正常。

k8s1.26.x 最新版本二进制方式部署

授权kubelet-bootstrap用户允许请求证书
kubectl create clusterrolebinding kubelet-bootstrap \
--clusterrole=system:node-bootstrapper \
--user=kubelet-bootstrap

k8s1.26.x 最新版本二进制方式部署

四：部署worker节点

4.1 创建工作目录并拷贝二进制文件

在所有worker node创建工作目录：
mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs} 
从master节点拷贝：
cd /root/software
cd kubernetes/server/bin
cp kubelet kube-proxy /opt/kubernetes/bin   # 本地拷贝

k8s1.26.x 最新版本二进制方式部署

4.2 部署kubelet

1. 创建配置文件
vim /opt/kubernetes/cfg/kubelet.conf
------
KUBELET_OPTS=" \
--v=2 \
--hostname-override=flyfish81 \
--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 \
--container-runtime=remote  \
--runtime-request-timeout=15m  \
--container-runtime-endpoint=unix:///run/cri-dockerd.sock \
--cgroup-driver=systemd \
--node-labels=node.kubernetes.io/node=''
------

k8s1.26.x 最新版本二进制方式部署

#配置参数文件
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

k8s1.26.x 最新版本二进制方式部署

#生成kubelet初次加入集群引导kubeconfig文件
KUBE_CONFIG="/opt/kubernetes/cfg/bootstrap.kubeconfig"
KUBE_APISERVER="https://172.16.10.81:6443" # 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=${KUBE_APISERVER} \
  --kubeconfig=${KUBE_CONFIG}
kubectl config set-credentials "kubelet-bootstrap" \
  --token=${TOKEN} \
  --kubeconfig=${KUBE_CONFIG}
kubectl config set-context default \
  --cluster=kubernetes \
  --user="kubelet-bootstrap" \
  --kubeconfig=${KUBE_CONFIG}
kubectl config use-context default --kubeconfig=${KUBE_CONFIG}

k8s1.26.x 最新版本二进制方式部署

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

k8s1.26.x 最新版本二进制方式部署

启动并设置开机启动
systemctl daemon-reload
systemctl start kubelet
systemctl enable kubelet

k8s1.26.x 最新版本二进制方式部署

批准kubelet证书申请并加入集群
# 查看kubelet证书请求
kubectl get csr
NAME                                                   AGE   SIGNERNAME                                    REQUESTOR           REQUESTEDDURATION   CONDITION
node-csr-5sLCL2TtNjOlvzb1kdNLMiIK8sFAt7rON2YwdGH33gs   4m57s   kubernetes.io/kube-apiserver-client-kubelet   kubelet-bootstrap   <none>              Pending


# 批准申请
kubectl certificate approve node-csr-5sLCL2TtNjOlvzb1kdNLMiIK8sFAt7rON2YwdGH33gs

# 查看节点
[root@rocksrvs01 bin]# kubectl get node
NAME          STATUS     ROLES    AGE   VERSION
rockysrvs01   NotReady   <none>   6s    v1.26.0

k8s1.26.x 最新版本二进制方式部署

4.3 部署kube-proxy

1. 创建配置文件
cat > /opt/kubernetes/cfg/kube-proxy.conf << EOF
KUBE_PROXY_OPTS=" \\
--v=2 \\
--config=/opt/kubernetes/cfg/kube-proxy-config.yml"
EOF

k8s1.26.x 最新版本二进制方式部署

2. 配置参数文件
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: flyfish81
clusterCIDR: 10.244.0.0/16
mode: ipvs
ipvs:
  scheduler: "rr"
iptables:
  masqueradeAll: true
EOF

k8s1.26.x 最新版本二进制方式部署

#生成kube-proxy.kubeconfig文件
# 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
生成kubeconfig文件：
KUBE_CONFIG="/opt/kubernetes/cfg/kube-proxy.kubeconfig"
KUBE_APISERVER="https://172.16.10.81:6443"

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

k8s1.26.x 最新版本二进制方式部署

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

k8s1.26.x 最新版本二进制方式部署

启动并设置开机启动
systemctl daemon-reload
systemctl start kube-proxy
systemctl enable kube-proxy

k8s1.26.x 最新版本二进制方式部署

五：部署calico网络

网络组件有很多种，只需要部署其中一个即可，推荐Calico。

Calico是一个纯三层的数据中心网络方案，Calico支持广泛的平台，包括Kubernetes、OpenStack等。

Calico 在每一个计算节点利用 Linux Kernel 实现了一个高效的虚拟路由器（ vRouter） 来负责数据转发，而每个 vRouter 通过 BGP 协议负责把自己上运行的 workload 的路由信息向整个 Calico 网络内传播。

此外，Calico 项目还实现了 Kubernetes 网络策略，提供ACL功能。

1.下载Calico

wget https://docs.projectcalico.org/manifests/calico.yaml --no-check-certificate

vim calico.yaml
...
- name: CALICO_IPV4POOL_CIDR
  value: "10.244.0.0/16"
...

k8s1.26.x 最新版本二进制方式部署

cat calico.yaml |grep image
docker pull docker.io/calico/cni:v3.24.5
docker pull docker.io/calico/node:v3.24.5
docker pull docker.io/calico/kube-controllers:v3.24.5

k8s1.26.x 最新版本二进制方式部署

kubectl apply -f calico.yaml

k8s1.26.x 最新版本二进制方式部署

kubectl get pod -n kube-system

k8s1.26.x 最新版本二进制方式部署

kubectl get node

k8s1.26.x 最新版本二进制方式部署

授权apiserver访问kubelet
应用场景：例如kubectl logs
cat > apiserver-to-kubelet-rbac.yaml << EOF
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  annotations:
    rbac.authorization.kubernetes.io/autoupdate: "true"
  labels:
    kubernetes.io/bootstrapping: rbac-defaults
  name: system:kube-apiserver-to-kubelet
rules:
  - apiGroups:
      - ""
    resources:
      - nodes/proxy
      - nodes/stats
      - nodes/log
      - nodes/spec
      - nodes/metrics
      - pods/log
    verbs:
      - "*"
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: system:kube-apiserver
  namespace: ""
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: system:kube-apiserver-to-kubelet
subjects:
  - apiGroup: rbac.authorization.k8s.io
    kind: User
    name: kubernetes
EOF

kubectl apply -f apiserver-to-kubelet-rbac.yaml

k8s1.26.x 最新版本二进制方式部署

六：新增加一个worker node

6.1 同步配置文件

1. 拷贝已部署好的Node相关文件到新节点
在Master节点将Worker Node涉及文件拷贝到新节点172.16.10.82/83

scp -r /opt/kubernetes root@172.16.10.82:/opt/

scp /opt/kubernetes/ssl/ca.pem root@172.16.10.82:/opt/kubernetes/ssl

scp -r /usr/lib/systemd/system/{kubelet,kube-proxy}.service root@172.16.10.82:/usr/lib/systemd/system

scp -r /opt/kubernetes root@172.16.10.83:/opt/

scp /opt/kubernetes/ssl/ca.pem root@172.16.10.83:/opt/kubernetes/ssl

scp -r /usr/lib/systemd/system/{kubelet,kube-proxy}.service root@172.16.10.83:/usr/lib/systemd/system

k8s1.26.x 最新版本二进制方式部署

删除kubelet证书和kubeconfig文件
rm -rf /opt/kubernetes/cfg/kubelet.kubeconfig 
rm -rf /opt/kubernetes/ssl/kubelet*
rm -rf /opt/kubernetes/logs/*

注：这几个文件是证书申请审批后自动生成的，每个Node不同，必须删除

k8s1.26.x 最新版本二进制方式部署

修改主机名 [改节点的主机名]
flyfish82:

vi /opt/kubernetes/cfg/kubelet.conf
--hostname-override=flyfish82

vi /opt/kubernetes/cfg/kube-proxy-config.yml
hostnameOverride: flyfish82

k8s1.26.x 最新版本二进制方式部署

修改主机名 [改节点的主机名]
flyfish83:

vi /opt/kubernetes/cfg/kubelet.conf
--hostname-override=flyfish83

vi /opt/kubernetes/cfg/kube-proxy-config.yml
hostnameOverride: flyfish83

k8s1.26.x 最新版本二进制方式部署

启动并设置开机启动
systemctl daemon-reload
systemctl start kubelet kube-proxy
systemctl enable kubelet kube-proxy

k8s1.26.x 最新版本二进制方式部署

在Master上批准新Node kubelet证书申请
kubectl get csr

k8s1.26.x 最新版本二进制方式部署

# 授权请求
kubectl certificate approve node-csr-95-n0_MYOJSE4w1LVdyytVBuqaJ90mccZJArob1wlnU
kubectl certificate approve node-csr-LRzjATYqgofqoo6rGoCk_3X4OEYSjdunOvzpninfLLg

k8s1.26.x 最新版本二进制方式部署

kubectl get pod -n kube-system 
kubectl get node

k8s1.26.x 最新版本二进制方式部署

七：部署Dashboard和CoreDNS

7.1 部署Dashboard

github:
https://github.com/kubernetes/dashboard/releases/tag/v2.7.0

wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml
目前最新版本v2.7.0 

vim recommended.yaml

----
spec:
  ports:
    - port: 443
      targetPort: 8443
      nodePort: 30001
  type: NodePort
  selector:
    k8s-app: kubernetes-dashboard
----


kubectl apply -f recommended.yaml

k8s1.26.x 最新版本二进制方式部署

kubectl get pods -n kubernetes-dashboard
kubectl get pods,svc -n kubernetes-dashboard

k8s1.26.x 最新版本二进制方式部署

创建service account并绑定默认cluster-admin管理员集群角色：

vim dashadmin.yaml
-----
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kubernetes-dashboard

---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: admin-user
  namespace: kubernetes-dashboard
-----

kubectl apply -f dashadmin.yaml

k8s1.26.x 最新版本二进制方式部署

创建用户登录token
kubectl -n kubernetes-dashboard create token admin-user
----

eyJhbGciOiJSUzI1NiIsImtpZCI6ImZHMnMzSjJtaHVTR0djRlpZQmtEX283LXN4VkxQZ2xPekR2aHAyaDNSXzQifQ.eyJhdWQiOlsiYXBpIiwiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjcyODI4MjU3LCJpYXQiOjE2NzI4MjQ2NTcsImlzcyI6ImFwaSIsImt1YmVybmV0ZXMuaW8iOnsibmFtZXNwYWNlIjoia3ViZXJuZXRlcy1kYXNoYm9hcmQiLCJzZXJ2aWNlYWNjb3VudCI6eyJuYW1lIjoiYWRtaW4tdXNlciIsInVpZCI6IjU5ZmFmZDA3LTk3NzctNGQ1ZC1iNjMxLWYyMTg4MDUwNWIyNyJ9fSwibmJmIjoxNjcyODI0NjU3LCJzdWIiOiJzeXN0ZW06c2VydmljZWFjY291bnQ6a3ViZXJuZXRlcy1kYXNoYm9hcmQ6YWRtaW4tdXNlciJ9.gH-HAItASsHJGawQqYZzTZ6CUq0nQ23JF-fbpuHsdlu25HSCCO-ORWSFH2uO5cYE9TwvnbOf8lATbadCeIZ9SqKLKNy86LQe-G_xWUDmaZ2S1DvkPDiHrCf5U5X6Xq2_lAXoPpZTvevFAKaPMYAWqETK5t_Ul1SNqn2fI9pnmE4lliXwdA4oegEKa0td-1H1IYMked131eckiXiSnx1Xy5aoRGSo8fAZwkd7pUBK8Wd5AlWoLi82_65Gzhl37U--jWNgomyI3mHEzmiH4HLDZCxmB7pTXjGeq40vReshyXQjCWS6_F5sFaIgtbJcuF_RzvihI7GhC0_3E1dVnik1IQ
----

 打开web

https://172.16.10.81:30001

k8s1.26.x 最新版本二进制方式部署

7.2 部署CoreDNS

kubectl apply -f coredns.yaml
测试:
  kubectl run -it --rm dns-test --image=busybox:1.28.4 sh

k8s1.26.x 最新版本二进制方式部署

创建一个nginx pod 测试：
kubectl create deployment nginx --image=nginx

kubectl expose deployment nginx --port=80 --type=NodePort

kubectl get deploy,svc,pod

k8s1.26.x 最新版本二进制方式部署

秒客网

k8s1.26.x 最新版本二进制方式部署

一：系统环境初始化

1.1 系统环境

1.2 下载工具准备

1.3系统初始化

1.4 修改内核参数

1.5 所有节点安装docker

二：部署etcd 服务

2.1 设置关于签名证书

2.2 安装etcd

三：部署k8s1.26.x

3.1 k8s 1.26.x 最新版本下载

3.2 生成k8s1.26.x 证书

3.3 安装k8s 1.26.x

3.3.1 部署kube-apiserver

3.3.2 部署kube-controller-manager

3.3.3 部署kube-scheduler

3.3.4 查看集群状态

四：部署worker节点

4.1 创建工作目录并拷贝二进制文件

4.2 部署kubelet

4.3 部署kube-proxy

五：部署calico网络

六：新增加一个worker node

6.1 同步配置文件

七：部署Dashboard和CoreDNS

7.1 部署Dashboard

7.2 部署CoreDNS

相关文章

k8s1.26.x 最新版本二进制方式部署

一： 系统环境初始化

1.1 系统环境

1.2 下载工具准备

1.3系统初始化

1.4 修改内核参数

1.5 所有节点安装docker

二：部署etcd 服务

2.1 设置关于签名证书

2.2 安装etcd

三：部署k8s1.26.x

3.1 k8s 1.26.x 最新版本下载

3.2 生成k8s1.26.x 证书

3.3 安装k8s 1.26.x

3.3.1 部署kube-apiserver

3.3.2 部署kube-controller-manager

3.3.3 部署kube-scheduler

3.3.4 查看集群状态

四： 部署worker节点

4.1 创建工作目录并拷贝二进制文件

4.2 部署kubelet

4.3 部署kube-proxy

五：部署calico网络

六：新增加一个worker node

6.1 同步配置文件

七：部署Dashboard和CoreDNS

7.1 部署Dashboard

7.2 部署CoreDNS

相关文章

一：系统环境初始化

四：部署worker节点