systemctl stop firewalld
systemctl disable firewalld
setenforce 0
sed -i 's/enforcing/disabled/' /etc/selinux/config
iptables -F && iptables -t nat -F && iptables -t mangle -F && iptables -X
swapoff -a
sed -ri 's/.*swap.*/#&/' /etc/fstab

hostnamectl set-hostname master01
hostnamectl set-hostname master02
hostnamectl set-hostname master03
hostnamectl set-hostname node01
hostnamectl set-hostname node02

cat >> /etc/hosts << EOF
192.168.30.100 master01
192.168.30.200 master02
192.168.30.203 master03
192.168.30.14 node01
192.168.30.15 node02
EOF

yum -y install ntpdate
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
echo 'Asia/Shanghai' >/etc/timezone
ntpdate time2.aliyun.com
 
systemctl enable --now crond
 
crontab -e
*/30 * * * * /usr/sbin/ntpdate time2.aliyun.com

vim /etc/security/limits.conf
* soft nofile 65536
* hard nofile 131072
* soft nproc 65535
* hard nproc 655350
* soft memlock unlimited
* hard memlock unlimited

wget http://193.49.22.109/elrepo/kernel/el7/x86_64/RPMS/kernel-ml-devel-4.19.12-1.el7.elrepo.x86_64.rpm -O /opt/kernel-ml-devel-4.19.12-1.el7.elrepo.x86_64.rpm
wget http://193.49.22.109/elrepo/kernel/el7/x86_64/RPMS/kernel-ml-4.19.12-1.el7.elrepo.x86_64.rpm -O /opt/kernel-ml-4.19.12-1.el7.elrepo.x86_64.rpm
 
cd /opt/
yum localinstall -y kernel-ml*
 
#更改內(nèi)核啟動方式
grub2-set-default 0 && grub2-mkconfig -o /etc/grub2.cfg
grubby --args="user_namespace.enable=1" --update-kernel="$(grubby --default-kernel)"
grubby --default-kernel
reboot

cat > /etc/sysctl.d/k8s.conf <<EOF
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
fs.may_detach_mounts = 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.ip_conntrack_max = 65536
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_timestamps = 0
net.core.somaxconn = 16384
EOF
 
#生效參數(shù)
sysctl --system

for i in $(ls /usr/lib/modules/$(uname -r)/kernel/net/netfilter/ipvs|grep -o "^[^.]*");do echo $i; /sbin/modinfo -F filename $i >/dev/null 2>&1 && /sbin/modprobe $i;done

yum install -y yum-utils device-mapper-persistent-data lvm2 
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 
yum install -y docker-ce docker-ce-cli containerd.io

cat > /etc/docker/daemon.json <<EOF
{
  "registry-mirrors": ["https://6ijb8ubo.mirror.aliyuncs.com"],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "500m", "max-file": "3"
  }
}
EOF
 
#將docker的資源限制更改為systemd，保持與k8s一致
 
 
systemctl daemon-reload
systemctl restart docker.service
systemctl enable docker.service

cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
 
yum install -y kubelet-1.20.15 kubeadm-1.20.15 kubectl-1.20.15

cat > /etc/sysconfig/kubelet <<EOF
KUBELET_EXTRA_ARGS="--cgroup-driver=systemd --pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google_containers/pause-amd64:3.2"
EOF

systemctl enable --now kubelet

yum -y install haproxy

cat > /etc/haproxy/haproxy.cfg << EOF
global
    log         127.0.0.1 local0 info
    log         127.0.0.1 local1 warning
    chroot      /var/lib/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     4000
    user        haproxy
    group       haproxy
    daemon
    stats socket /var/lib/haproxy/stats
defaults
    mode                    tcp
    log                     global
    option                  tcplog
    option                  dontlognull
    option                  redispatch
    retries                 3
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout check           10s
    maxconn                 3000
frontend monitor-in
    bind *:33305
    mode http
    option httplog
    monitor-uri /monitor
frontend k8s-master
    bind *:16443        #如果與apiserver部署在同一臺機器上監(jiān)聽端口會沖突，更改監(jiān)聽端口
    mode tcp
    option tcplog
    default_backend k8s-master
backend k8s-master
    mode tcp
    option tcplog
    option tcp-check
    balance roundrobin
    server k8s-master1 192.168.30.100:6443  check inter 10000 fall 2 rise 2 weight 1
    server k8s-master2 192.168.30.200:6443  check inter 10000 fall 2 rise 2 weight 1
    server k8s-master3 192.168.30.203:6443  check inter 10000 fall 2 rise 2 weight 1
EOF

yum -y install keepalived

cd /etc/keepalived/
vim keepalived.conf
! Configuration File for keepalived
global_defs {
    router_id LVS_HA1
}
 
vrrp_script chk_haproxy {
    script "/etc/keepalived/check_haproxy.sh"
    interval 2
    weight 2
}
 
vrrp_instance VI_1 {
    state MASTER
    interface ens33
    virtual_router_id 51
    priority 100
    advert_int 1
    virtual_ipaddress {
        192.168.30.10 #設置VIP地址
    }
    track_script {
        chk_haproxy
    }
}

vim check_haproxy.sh
#!/bin/bash
if ! killall -0 haproxy; then
    systemctl stop keepalived
fi
chmod +x check_haproxy.sh

systemctl enable --now haproxy
systemctl enable --now keepalived

kubeadm config print init-defaults > /opt/kubeadm-config.yaml
 
cd /opt/
vim kubeadm-config.yaml
......
11 localAPIEndpoint:
12   advertiseAddress: 192.168.30.100		#指定當前master節(jié)點的IP地址
13   bindPort: 6443
 
21 apiServer:
22   certSANs:								#在apiServer屬性下面添加一個certsSANs的列表，添加所有master節(jié)點的IP地址和集群VIP地址
23   - 192.168.30.10
24   - 192.168.30.100
25   - 192.168.30.200
26   - 192.168.30.203
 
30 clusterName: kubernetes
31 controlPlaneEndpoint: "192.168.30.10:16444"		#指定集群VIP地址
32 controllerManager: {}
 
38 imageRepository: registry.cn-hangzhou.aliyuncs.com/google_containers			#指定鏡像下載地址
39 kind: ClusterConfiguration
40 kubernetesVersion: v1.20.15				#指定kubernetes版本號
41 networking:
42   dnsDomain: cluster.local
43   podSubnet: "10.244.0.0/16"				#指定pod網(wǎng)段，10.244.0.0/16用于匹配flannel默認網(wǎng)段
44   serviceSubnet: 10.96.0.0/16			#指定service網(wǎng)段
45 scheduler: {}
#末尾再添加以下內(nèi)容
--- 
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
mode: ipvs									#把默認的kube-proxy調(diào)度方式改為ipvs模式

kubeadm config migrate --old-config kubeadm-config.yaml --new-config new.yaml

#拷貝yaml配置文件給其他主機，通過配置文件進行拉取鏡像
for i in master02 master03 node01 node02; do scp /opt/new.yaml $i:/opt/; done
 
kubeadm config images pull --config /opt/new.yaml

kubeadm init --config new.yaml --upload-certs | tee kubeadm-init.log

#提示：
.........
Your Kubernetes control-plane has initialized successfully!
 
To start using your cluster, you need to run the following as a regular user:
 
  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config
    #這個命令是常規(guī)用戶身份運行，在master01節(jié)點執(zhí)行此命令
Alternatively, if you are the root user, you can run:
 
  export KUBECONFIG=/etc/kubernetes/admin.conf
    #如果是root用戶，在master01節(jié)點執(zhí)行此命令，兩種都行，自己選
 
You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  https://kubernetes.io/docs/concepts/cluster-administration/addons/
 
You can now join any number of the control-plane node running the following command on each as root:
#master節(jié)點加入使用的命令，記錄！
  kubeadm join 192.168.88.200:16443 --token 7t2weq.bjbawausm0jaxury \
    --discovery-token-ca-cert-hash sha256:e76e4525ca29a9ccd5c24142a724bdb6ab86512420215242c4313fb830a4eb98 \
    --control-plane --certificate-key 0f2a7ff2c46ec172f834e237fcca8a02e7c29500746594c25d995b78c92dde96
 
Please note that the certificate-key gives access to cluster sensitive data, keep it secret!
As a safeguard, uploaded-certs will be deleted in two hours; If necessary, you can use
"kubeadm init phase upload-certs --upload-certs" to reload certs afterward.
 
Then you can join any number of worker nodes by running the following on each as root:
#node節(jié)點加入使用的命令。記錄！
kubeadm join 192.168.88.200:16443 --token 7t2weq.bjbawausm0jaxury \
    --discovery-token-ca-cert-hash sha256:e76e4525ca29a9ccd5c24142a724bdb6ab86512420215242c4313fb830a4eb98

vim /etc/kubernetes/manifests/kube-scheduler.yaml 
vim /etc/kubernetes/manifests/kube-controller-manager.yaml
......
    #- --port=0					#搜索port=0，把這一行注釋掉
 
systemctl restart kubelet
 
所有master節(jié)點配置

所有節(jié)點上傳 flannel 鏡像 flannel.tar 和網(wǎng)絡插件 cni-plugins-linux-amd64-v0.8.6.tgz 到 /opt 目錄，master節(jié)點上傳 kube-flannel.yml 文件
cd /opt
docker load < flannel.tar
 
mv /opt/cni /opt/cni_bak
mkdir -p /opt/cni/bin
tar zxvf cni-plugins-linux-amd64-v0.8.6.tgz -C /opt/cni/bin
#注意自己使用的版本
 
kubectl apply -f kube-flannel.yml

 kubeadm join 192.168.30.10:16443 --token 7t2weq.bjbawausm0jaxury \
    --discovery-token-ca-cert-hash sha256:e76e4525ca29a9ccd5c24142a724bdb6ab86512420215242c4313fb830a4eb98 \
    --control-plane --certificate-key 0f2a7ff2c46ec172f834e237fcca8a02e7c29500746594c25d995b78c92dde96
 
 
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

kubeadm join 192.168.30.10:16443 --token 7t2weq.bjbawausm0jaxury \
    --discovery-token-ca-cert-hash sha256:e76e4525ca29a9ccd5c24142a724bdb6ab86512420215242c4313fb830a4eb98

#在 master01 查看集群信息
kubectl get nodes
 
kubectl get pod -A

//修改主機名
hostnamectl set-hostname hub.dhj.com
 
//所有節(jié)點加上主機名映射
echo '192.168.30.104 hub.dhj.com' >> /etc/hosts
 
//安裝 docker
yum install -y yum-utils device-mapper-persistent-data lvm2 
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 
yum install -y docker-ce docker-ce-cli containerd.io
 
mkdir /etc/docker
cat > /etc/docker/daemon.json <<EOF
{
  "registry-mirrors": ["https://6ijb8ubo.mirror.aliyuncs.com"],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "insecure-registries": ["https://hub.dhj.com"]
}
EOF
 
systemctl start docker
systemctl enable docker

cat > /etc/docker/daemon.json <<EOF
{
  "registry-mirrors": ["https://6ijb8ubo.mirror.aliyuncs.com"],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "insecure-registries": ["https://hub.dhj.com"]
}
EOF
 
systemctl daemon-reload
systemctl restart docker

cd /opt/
#上傳 harbor-offline-installer-v1.2.2.tgz 和 docker-compose 文件到 /opt 目錄
cp docker-compose /usr/local/bin
chmod +x /usr/local/bin/docker-compose
#將docker-compose編排工具復制到bin目錄,并添加執(zhí)行權(quán)限
 
tar -zxvf harbor-offline0installer-v1.2.2.tgz
#將harbor包解包
 
cd harbor.cfg
 
vim harbor.cfg
5  hostname = hub.dhj.com
9  ui_url_protocol = https
24 ssl_cert = /data/cert/server.crt
25 ssl_cert_key = /data/cert/server.key
59 harbor_admin_password = Harbor12345

mkdir  -p /data/cert
#創(chuàng)建證書目錄
 
cd /data/cert
openssl genrsa -des3 -out server.key 2048
#生成私鑰
//輸入兩遍密碼:123456
 
openssl req -new -key server.key -out server.csr
#生成證書簽名請求文件
//輸入私鑰密碼：123456
//輸入國家名：CN
//輸入省名：BJ
//輸入市名：BJ
//輸入組織名：www
//輸入機構(gòu)名：www
//輸入域名：hub.wzw.com
//輸入管理員郵箱：admin@ydq.com
//其它全部直接回車
 
cp server.key server.key.org
#備份私鑰
 
openssl rsa -in server.key.org -out server.key
#清除私鑰密碼:123456,重新生成一個文件，覆蓋以前的帶密碼的。
 
openssl x509 -req -days 1000 -in server.csr -signkey server.key -out server.crt
#簽名證書
 
chmod +x /data/cert/*
#全部添加執(zhí)行權(quán)限
cd /opt/harbor/
./install.sh
#執(zhí)行腳本

在本地使用瀏覽器訪問：https://hub.dhj.com
 
添加例外 -> 確認安全例外
用戶名：admin
密碼：Harbor12345