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RKE 生产环境kubernetes集群部署

发布时间：2020-07-25 22:40:28 来源：网络 阅读：1025 作者：无锋剑 栏目：云计算

集群介绍

RKE 生产环境kubernetes集群部署

master节点：
10.20.10.103 name=cnvs-kubm-101-103  role: [controlplane,worker,etcd] user: k8suser
10.20.10.104 name=cnvs-kubm-101-104  role: [controlplane,worker,etcd] user: k8suser
10.20.10.105 name=cnvs-kubm-101-105  role: [controlplane,worker,etcd] user: k8suser

集群管理节点：10.20.10.103
vip:10.20.10.253

node 节点：
10.20.10.106 name=cnvs-kubnode-101-106  role: [controlplane,worker,etcd] user: k8suser 
10.20.10.107 name=cnvs-kubnode-101-107  role: [controlplane,worker,etcd] user: k8suser
10.20.10.108 name=cnvs-kubnode-101-108  role: [controlplane,worker,etcd] user: k8suser
10.20.10.118 name=cnvs-kubnode-101-118  role: [controlplane,worker,etcd] user: k8suser 
10.20.10.120 name=cnvs-kubnode-101-120  role: [controlplane,worker,etcd] user: k8suser
10.20.10.122 name=cnvs-kubnode-101-122  role: [controlplane,worker,etcd] user: k8suser
10.20.10.123 name=cnvs-kubnode-101-123  role: [controlplane,worker,etcd] user: k8suser 
10.20.10.124 name=cnvs-kubnode-101-124  role: [controlplane,worker,etcd] user: k8suser

集群安装

安装准备

rke部署不允许使用root 用户，需要新建一个集群部署账户或者将现有账户添加docker 用户组.
本次采取将现有k8suser账户添加到 docker

#单机
usermod k8suser -G docker 

#批量
ansible kub-all -m shell -a "usermod k8suser -G docker"

#验证
[root@cnvs-kubm-101-103 kub-deploy]# ansible kub-all -m shell -a "id k8suser"               

10.20.10.107 | CHANGED | rc=0 >>
uid=1000(k8suser) gid=1000(k8suser) groups=1000(k8suser),992(docker)

#kub-all 包含集群所有主机

创建集群用户方法

groupadd docker && useradd rancher -G docker
echo "123456" | passwd --stdin rancher

ssh免密登录

在安装主机上与安装集群所有节点（安装集群用户）打通ssh无密码验证。

ansible kub-all -m shell -a "echo 'ssh-rsa AAAAB3NzaC1yaLuTb ' >>/home/k8suser/.ssh/authorized_keys"

rancher rke 下载

mkdir  -p /etc/rke/

下载地址 https://www.rancher.cn/docs/rancher/v2.x/cn/install-prepare/download/rke/

unzip rke_linux-amd64.zip 

mv rke_linux-amd64 /usr/bin/rke

[root@cnvs-kubm-101-103 rke]# chmod 755  /usr/bin/rke

[root@cnvs-kubm-101-103 rke]# rke  -v
rke version v0.2.8

生成集群配置文件

address：公共域名或IP地址
user：可以运行docker命令的用户，需要是普通用户。
role：分配给节点的Kubernetes角色列表
ssh_key_path：用于对节点进行身份验证的SSH私钥的路径（默认为~/.ssh/id_rsa）

cat > cluster.yml << EOF
nodes:
  - address: 10.20.10.103
    user: k8suser
    role: [controlplane,worker,etcd]
  - address: 10.20.10.104
    user: k8suser
    role: [controlplane,worker,etcd]
  - address: 10.20.10.105
    user: k8suser
    role: [controlplane,worker,etcd]

  - address: 10.20.10.106
    user: k8suser
    role: [worker]
    labels: {traefik: traefik-outer}
  - address: 10.20.10.107
    user: k8suser
    role: [worker]
    labels: {traefik: traefik-outer}
  - address: 10.20.10.108
    user: k8suser
    role: [worker]
    labels: {traefik: traefik-outer}

  - address: 10.20.10.118
    user: k8suser
    role: [worker]
    labels: {traefik: traefik-inner}
  - address: 10.20.10.120
    user: k8suser
    role: [worker]
    labels: {traefik: traefik-inner}

  - address: 10.20.10.122
    user: k8suser
    role: [worker]
    labels: {app: ingress}
  - address: 10.20.10.123
    user: k8suser
    role: [worker]
    labels: {app: ingress}
  - address: 10.20.10.124
    user: k8suser
    role: [worker]
    labels: {app: ingress}
ingress:
  node_selector: {app: ingress}
cluster_name: cn-kube-prod
services:
  etcd:
    snapshot: true
    creation: 6h
    retention: 24h
  kubeproxy:
    extra_args:
      proxy-mode: ipvs
  kubelet:
    extra_args:
      cgroup-driver: 'systemd'
authentication:
    strategy: x509
    sans:
      - "10.20.10.252"
      - "10.20.10.253"
      - "cnpaas.pt.com"
EOF

配置简介

address：公共域名或IP地址
user：可以运行docker命令的用户，需要是普通用户。
role：分配给节点的Kubernetes角色列表
ssh_key_path：用于对节点进行身份验证的SSH私钥的路径（默认为~/.ssh/id_rsa）

执行安装

cd /etc/rke

rke up

--- 然后等待结束~！

INFO[3723] [sync] Syncing nodes Labels and Taints       
INFO[3725] [sync] Successfully synced nodes Labels and Taints 
INFO[3725] [network] Setting up network plugin: canal   
INFO[3725] [addons] Saving ConfigMap for addon rke-network-plugin to Kubernetes 
................略
INFO[3751] [addons] Executing deploy job rke-metrics-addon 
INFO[3761] [addons] Metrics Server deployed successfully 
INFO[3761] [ingress] Setting up nginx ingress controller 
INFO[3761] [addons] Saving ConfigMap for addon rke-ingress-controller to Kubernetes 
INFO[3761] [addons] Successfully saved ConfigMap for addon rke-ingress-controller to Kubernetes 
INFO[3761] [addons] Executing deploy job rke-ingress-controller 

INFO[3771] [ingress] ingress controller nginx deployed successfully 
INFO[3771] [addons] Setting up user addons              
INFO[3771] [addons] no user addons defined              
INFO[3771] Finished building Kubernetes cluster successfully 
[root@cnvs-kubm-101-103 rke]#

安装完成查看 Kubernetes集群状态文件

Kubernetes集群状态由Kubernetes集群中的集群配置文件cluster.yml和组件证书组成，由RKE生成，但根据您的RKE版本，集群状态的保存方式不同。

从v0.2.0开始，RKE在集群配置文件cluster.yml的同一目录中创建一个.rkestate文件。该.rkestate文件包含集群的当前状态，包括RKE配置和证书。需要保留此文件以更新集群或通过RKE对集群执行任何操作。

[root@cndh2321-6-13 rke]#       ll
-rw-r----- 1 root root   121198 Aug 30 18:04 cluster.rkestate
-rw-r--r-- 1 root root     1334 Aug 30 16:31 cluster.yml
-rw-r----- 1 root root     5431 Aug 30 17:08 kube_config_cluster.yml
-rwxr-xr-x 1 root root 10833540 Aug 29 20:07 rke_linux-amd64.zip

集群管理节点环境初始化

集群管理节点：10.20.10.103

1:安装完成首先修改:kube_config_cluster.yml 

apiVersion: v1
kind: Config
clusters:
- cluster:
.......
FLS0tLS0K 
    server: "https://10.20.10.253:16443"    <=== 修改地址为集群master节点vip 地址和端口：
.....
    user: "kube-admin-cn-kube-prod"

2：如果安装节点部署集群节点，需要将部署节点 copy （kube_config_cluster.yml） 配置文件至集群管理节点

scp kube_config_cluster.yml 10.20.10.103:/etc/kubernetes/

3：配置环境变量：

rm -rf $HOME/.kube

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/kube_config_cluster.yml $HOME/.kube/config 
sudo chown $(id -u):$(id -g) $HOME/.kube/config

安装kubectl 集群管理工具

yum -y install kubectl

#验证集群

查看集群版本：

kubectl --kubeconfig /etc/kubernetes/kube_config_cluster.yml  version    or   kubectl version  

Client Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.3", GitCommit:"2d3c76f9091b6bec110a5e63777c332469e0cba2", GitTreeState:"clean", BuildDate:"2019-08-19T11:13:54Z", GoVersion:"go1.12.9", Compiler:"gc", Platform:"linux/amd64"}

Server Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.6", GitCommit:"96fac5cd13a5dc064f7d9f4f23030a6aeface6cc", GitTreeState:"clean", BuildDate:"2019-08-19T11:05:16Z", GoVersion:"go1.12.9", Compiler:"gc", Platform:"linux/amd64"}

查看节点

kubectl --kubeconfig /etc/kubernetes/kube_config_cluster.yml  get nodes  or  kubectl get nodes  

NAME             STATUS   ROLES                      AGE   VERSION   INTERNAL-IP        CONTAINER-RUNTIME
10.20.10.103   Ready    controlplane,etcd,worker   29m   v1.14.6   10.20.10.103     docker://18.9.8
10.20.10.104   Ready    controlplane,etcd,worker   29m   v1.14.6   10.20.10.104     docker://18.9.8
10.20.10.105   Ready    controlplane,etcd,worker   29m   v1.14.6   10.20.10.105     docker://18.9.8
10.20.10.106   Ready    worker                     29m   v1.14.6   10.20.10.106     docker://18.9.8
10.20.10.107   Ready    worker                     29m   v1.14.6   10.20.10.107     docker://18.9.8
10.20.10.108   Ready    worker                     29m   v1.14.6   10.20.10.108     docker://18.9.8
10.20.10.118   Ready    worker                     29m   v1.14.6   10.20.10.118     docker://18.9.8
10.20.10.120   Ready    worker                     29m   v1.14.6   10.20.10.120     docker://18.9.8
10.20.10.122   Ready    worker                     24m   v1.14.6   10.20.10.122     docker://18.9.8
10.20.10.123   Ready    worker                     29m   v1.14.6   10.20.10.123     docker://18.9.8
10.20.10.124   Ready    worker                     29m   v1.14.6   10.20.10.124     docker://18.9.8

查看服务标签

#traefik=traefik-outer
kubectl get node  -l "traefik=traefik-outer"
NAME             STATUS   ROLES    AGE   VERSION
10.20.10.106   Ready    worker   31m   v1.14.6
10.20.10.107   Ready    worker   31m   v1.14.6
10.20.10.108   Ready    worker   31m   v1.14.6

#traefik=traefik-outer
kubectl get node  -l "traefik=traefik-inner"
NAME             STATUS   ROLES    AGE   VERSION
10.20.10.118   Ready    worker   32m   v1.14.6
10.20.10.120   Ready    worker   32m   v1.14.6

#app=ingress
kubectl get node  -l "app=ingress"
NAME             STATUS   ROLES    AGE   VERSION
10.20.10.122   Ready    worker   26m   v1.14.6
10.20.10.123   Ready    worker   31m   v1.14.6
10.20.10.124   Ready    worker   31m   v1.14.6

验证集群容器

#服务
[root@cnvs-kubm-101-103 k8suser]# kubectl get svc -A
NAMESPACE       NAME                   TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)                  AGE
default         kubernetes             ClusterIP   10.43.0.1       <none>        443/TCP                  50m
ingress-nginx   default-http-backend   ClusterIP   10.43.63.186    <none>        80/TCP                   34m
kube-system     kube-dns               ClusterIP   10.43.0.10      <none>        53/UDP,53/TCP,9153/TCP   34m
kube-system     metrics-server         ClusterIP   10.43.179.102   <none>        443/TCP                  34m
kube-system     tiller-deploy          ClusterIP   10.43.152.163   <none>        44134/TCP                6m38s

#部署环境
[root@cnvs-kubm-101-103 k8suser]# kubectl get deploy -A
NAMESPACE       NAME                   READY   UP-TO-DATE   AVAILABLE   AGE
ingress-nginx   default-http-backend   1/1     1            1           34m
kube-system     coredns                3/3     3            3           34m
kube-system     coredns-autoscaler     1/1     1            1           34m
kube-system     metrics-server         1/1     1            1           34m
kube-system     tiller-deploy          1/1     1            1           6m55s

#容器
[root@cnvs-kubm-101-103 k8suser]# kubectl get pods -o wide -A
NAMESPACE       NAME                                      READY   STATUS     AGE     IP               NODE           
ingress-nginx   default-http-backend-5954bd5d8c-m6k9b     1/1     Running    30m     10.42.6.2        10.20.10.103  
ingress-nginx   nginx-ingress-controller-sgkm4            1/1     Running    25m     10.20.10.122   10.20.10.122  
ingress-nginx   nginx-ingress-controller-t2644            1/1     Running    28m     10.20.10.123   10.20.10.123  
ingress-nginx   nginx-ingress-controller-zq2lj            1/1     Running    21m     10.20.10.124   10.20.10.124  
kube-system     canal-5df7s                               2/2     Running    31m     10.20.10.118   10.20.10.118  
kube-system     canal-62t7j                               2/2     Running    31m     10.20.10.103   10.20.10.103  
kube-system     canal-cczs2                               2/2     Running    31m     10.20.10.108   10.20.10.108  
kube-system     canal-kzzz7                               2/2     Running    31m     10.20.10.106   10.20.10.106  
kube-system     canal-lp97g                               2/2     Running    31m     10.20.10.107   10.20.10.107  
kube-system     canal-p4wbh                               2/2     Running    31m     10.20.10.105   10.20.10.105  
kube-system     canal-qm4l6                               2/2     Running    31m     10.20.10.104   10.20.10.104  
kube-system     canal-rb8j6                               2/2     Running    31m     10.20.10.122   10.20.10.122  
kube-system     canal-w6rp7                               2/2     Running    31m     10.20.10.124   10.20.10.124  
kube-system     canal-wwjjc                               2/2     Running    31m     10.20.10.120   10.20.10.120  
kube-system     canal-x5xw6                               2/2     Running    31m     10.20.10.123   10.20.10.123  
kube-system     coredns-autoscaler-5d5d49b8ff-sdbpj       1/1     Running    31m     10.42.1.3        10.20.10.118  
kube-system     coredns-bdffbc666-98vp9                   1/1     Running    20m     10.42.4.2        10.20.10.124  
kube-system     coredns-bdffbc666-k5qtb                   1/1     Running    20m     10.42.6.3        10.20.10.103  
kube-system     coredns-bdffbc666-qmrwr                   1/1     Running    31m     10.42.1.2        10.20.10.118  
kube-system     metrics-server-7f6bd4c888-bpnk2           1/1     Running    30m     10.42.1.4        10.20.10.118  
kube-system     rke-coredns-addon-deploy-job-4t2xd        0/1     Completed  31m     10.20.10.103   10.20.10.103  
kube-system     rke-ingress-controller-deploy-job-f69dg   0/1     Completed  30m     10.20.10.103   10.20.10.103  
kube-system     rke-metrics-addon-deploy-job-v2pqk        0/1     Completed  31m     10.20.10.103   10.20.10.103  
kube-system     rke-network-plugin-deploy-job-92wv2       0/1     Completed  31m     10.20.10.103   10.20.10.103

安装 helm

kubectl create serviceaccount --namespace kube-system tiller
kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller

helm init --history-max 200

kubectl patch deploy --namespace kube-system tiller-deploy -p '{"spec":{"template":{"spec":{"serviceAccount":"tiller"}}}}'

验证版本

[root@cnvs-kubm-101-103 k8suser]# helm  version

Client: &version.Version{SemVer:"v2.14.3", GitCommit:"0e7f3b6637f7af8fcfddb3d2941fcc7cbebb0085", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.14.3", GitCommit:"0e7f3b6637f7af8fcfddb3d2941fcc7cbebb0085", GitTreeState:"clean"}

安装rancher

以外部HTTP L7负载均衡器作为访问入口，使用公司购买企业ssl证书，使用外部七层负载均衡器作为访问入口，那么将需要把ssl证书配置在L7负载均衡器上面，如果是权威认证证书，rancher侧则无需配置证书。pt业务环境使用nginx作为代理工具，将ssl 放在nginx端。

准备软件包

Rancher Server(rancher-stable)稳定版Helm charts仓库，此仓库版本推荐用于生产环境。


helm repo add rancher-stable https://releases.rancher.com/server-charts/stable

查看版本

[root@cnvs-kubm-101-103 kub-deploy]# helm search rancher
NAME                    CHART VERSION   APP VERSION     DESCRIPTION                                                 
rancher-stable/rancher  2.2.8           v2.2.8          Install Rancher Server to manage Kubernetes clusters acro...

安装

helm install rancher-stable/rancher \
    --name rancher \
    --namespace cattle-system \
    --set auditLog.level=1 \
    --set auditLog.maxAge=3 \
    --set auditLog.maxBackups=2 \
    --set auditLog.maxSize=2000 \
    --set tls=external \
    --set hostname=cnpaas.pt.com

注意：内网dns： cnpass.k8suser.com指向 master 节点 vip ：10.20.10.253
如果走内网域名干预，内部api接口转发nginx 要同时配置 tcp和heep转发，详见尾部nginx配置。

返回状态


NOTES:
Rancher Server has been installed.
.......

Browse to https://cnpass.k8suser.com

Happy Containering!

配置外部nginx代理

完成此步骤即可从公网访问rancher平台管理平台：

使用现有nginx

upstream cn-prod-rancher {
        server 10.20.10.122;
        server 10.20.10.123;
        server 10.20.10.124;
    }
    map $http_upgrade $connection_upgrade {
        default Upgrade;
        ''      close;
    }
server {
#        listen 443 ssl;
        listen 443 ssl http2;
        server_name cnpaas.pt.com;
        ssl_certificate /usr/local/openresty/nginx/ssl2018/k8suser.com.20201217.pem;
        ssl_certificate_key /usr/local/openresty/nginx/ssl2018/k8suser.com.20201217.key;
        access_log       /data/nginxlog/k8scs.k8suser.com.log access;

        location / {
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header X-Forwarded-Port $server_port;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_pass http://cn-prod-rancher;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            # This allows the ability for the execute shell window to remain open for up to 15 minutes.
            ## Without this parameter, the default is 1 minute and will automatically close.
            proxy_read_timeout 900s;
            proxy_buffering off;
        }
    }

    server {
        listen 80;
        server_name FQDN;
        return 301 https://$server_name$request_uri;
    }

stream {
    upstream kube_apiserver {
        least_conn;
          server 10.20.10.103:6443 weight=5 max_fails=2 fail_timeout=10s;   
          server 10.20.10.104:6443 weight=5 max_fails=2 fail_timeout=10s;   
          server 10.20.10.105:6443 weight=5 max_fails=2 fail_timeout=10s;   
        }

    server {
        listen        0.0.0.0:16443;
        proxy_pass    kube_apiserver;
        proxy_timeout 10m;
        proxy_connect_timeout 1s;
    }
}

官方推荐配置 - 新nginx节点：

worker_processes 4;
worker_rlimit_nofile 40000;

events {
    worker_connections 8192;
}

http {
    upstream cn-prod-rancher {
        server 10.20.10.122;
        server 10.20.10.123;
        server 10.20.10.124;
    }
gzip on;
gzip_disable "msie6";
gzip_disable "MSIE [1-6]\.(?!.*SV1)";
gzip_vary on;
gzip_static on;
gzip_proxied any;
gzip_min_length 0;
gzip_comp_level 8;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types
  text/xml application/xml application/atom+xml application/rss+xml application/xhtml+xml image/svg+xml application/font-woff
  text/javascript application/javascript application/x-javascript
  text/x-json application/json application/x-web-app-manifest+json
  text/css text/plain text/x-component
  font/opentype application/x-font-ttf application/vnd.ms-fontobject font/woff2
  image/x-icon image/png image/jpeg;
    map $http_upgrade $connection_upgrade {
        default Upgrade;
        ''      close;
    }
server {
        listen 443 ssl http2;
        server_name cnpaas.pt.com;
        ssl_certificate /usr/local/nginx/k8suser.com.20201217.pem;
        ssl_certificate_key /usr/local/nginx/ssl.pem;
        access_log       /data/nginxlog/k8scs.k8suser.com.log ;

        location / {
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_set_header X-Forwarded-Port $server_port;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_pass http://cn-prod-rancher;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            # This allows the ability for the execute shell window to remain open for up to 15 minutes.
            ## Without this parameter, the default is 1 minute and will automatically close.
            proxy_read_timeout 900s;
            proxy_buffering off;
        }
    }

    server {
        listen 80;
        server_name FQDN;
        return 301 https://$server_name$request_uri;
    }
} 

stream {
    upstream kube_apiserver {
        least_conn;
          server 10.20.10.103:6443 weight=5 max_fails=2 fail_timeout=10s;   
          server 10.20.10.104:6443 weight=5 max_fails=2 fail_timeout=10s;   
          server 10.20.10.105:6443 weight=5 max_fails=2 fail_timeout=10s;   
        }

    server {
        listen        0.0.0.0:16443;
        proxy_pass    kube_apiserver;
        proxy_timeout 10m;
        proxy_connect_timeout 1s;
    }
}

总体验证

浏览器访问 cnpaas.pt.com 进入引导新建管理员密码界面！

集群所有基础服务工作人员大合照

[root@cnvs-kubm-101-103 nginx]# kubectl get pods -o wide  -A
NAMESPACE       NAME                                      READY   STATUS      RESTARTS   AGE    IP               NODE            
cattle-system   cattle-cluster-agent-5c978b9d49-2mfqb     1/1     Running     8          44m    10.42.6.5        10.20.10.103   
cattle-system   cattle-node-agent-8wbj9                   1/1     Running     8          44m    10.20.10.123   10.20.10.123   
cattle-system   cattle-node-agent-b2qsm                   1/1     Running     8          44m    10.20.10.107   10.20.10.107   
cattle-system   cattle-node-agent-bgxvb                   1/1     Running     8          44m    10.20.10.122   10.20.10.122   
cattle-system   cattle-node-agent-hkx6n                   1/1     Running     8          44m    10.20.10.105   10.20.10.105   
cattle-system   cattle-node-agent-kbf8c                   1/1     Running     8          44m    10.20.10.120   10.20.10.120   
cattle-system   cattle-node-agent-mxws9                   1/1     Running     8          44m    10.20.10.118   10.20.10.118   
cattle-system   cattle-node-agent-n7z5w                   1/1     Running     8          44m    10.20.10.108   10.20.10.108   
cattle-system   cattle-node-agent-p46tp                   1/1     Running     8          44m    10.20.10.106   10.20.10.106   
cattle-system   cattle-node-agent-qxp6g                   1/1     Running     8          44m    10.20.10.104   10.20.10.104   
cattle-system   cattle-node-agent-rqkkz                   1/1     Running     8          44m    10.20.10.124   10.20.10.124   
cattle-system   cattle-node-agent-srs8f                   1/1     Running     8          44m    10.20.10.103   10.20.10.103   
cattle-system   rancher-76bc7dccd5-7h59d                  2/2     Running     0          62m    10.42.4.4        10.20.10.124   
cattle-system   rancher-76bc7dccd5-g4cwn                  2/2     Running     0          62m    10.42.5.3        10.20.10.106   
cattle-system   rancher-76bc7dccd5-rx7dh                  2/2     Running     0          62m    10.42.9.3        10.20.10.120   
ingress-nginx   default-http-backend-5954bd5d8c-m6k9b     1/1     Running     0          102m   10.42.6.2        10.20.10.103   
ingress-nginx   nginx-ingress-controller-sgkm4            1/1     Running     0          97m    10.20.10.122   10.20.10.122   
ingress-nginx   nginx-ingress-controller-t2644            1/1     Running     0          99m    10.20.10.123   10.20.10.123   
ingress-nginx   nginx-ingress-controller-zq2lj            1/1     Running     0          92m    10.20.10.124   10.20.10.124   
kube-system     canal-5df7s                               2/2     Running     0          102m   10.20.10.118   10.20.10.118   
kube-system     canal-62t7j                               2/2     Running     0          102m   10.20.10.103   10.20.10.103   
kube-system     canal-cczs2                               2/2     Running     0          102m   10.20.10.108   10.20.10.108   
kube-system     canal-kzzz7                               2/2     Running     0          102m   10.20.10.106   10.20.10.106   
kube-system     canal-lp97g                               2/2     Running     0          102m   10.20.10.107   10.20.10.107   
kube-system     canal-p4wbh                               2/2     Running     0          102m   10.20.10.105   10.20.10.105   
kube-system     canal-qm4l6                               2/2     Running     0          102m   10.20.10.104   10.20.10.104   
kube-system     canal-rb8j6                               2/2     Running     0          102m   10.20.10.122   10.20.10.122   
kube-system     canal-w6rp7                               2/2     Running     0          102m   10.20.10.124   10.20.10.124   
kube-system     canal-wwjjc                               2/2     Running     0          102m   10.20.10.120   10.20.10.120   
kube-system     canal-x5xw6                               2/2     Running     0          102m   10.20.10.123   10.20.10.123   
kube-system     coredns-autoscaler-5d5d49b8ff-sdbpj       1/1     Running     0          102m   10.42.1.3        10.20.10.118   
kube-system     coredns-bdffbc666-98vp9                   1/1     Running     0          92m    10.42.4.2        10.20.10.124   
kube-system     coredns-bdffbc666-k5qtb                   1/1     Running     0          92m    10.42.6.3        10.20.10.103   
kube-system     coredns-bdffbc666-qmrwr                   1/1     Running     0          102m   10.42.1.2        10.20.10.118   
kube-system     metrics-server-7f6bd4c888-bpnk2           1/1     Running     0          102m   10.42.1.4        10.20.10.118   
kube-system     rke-coredns-addon-deploy-job-4t2xd        0/1     Completed   0          102m   10.20.10.103   10.20.10.103   
kube-system     rke-ingress-controller-deploy-job-f69dg   0/1     Completed   0          102m   10.20.10.103   10.20.10.103   
kube-system     rke-metrics-addon-deploy-job-v2pqk        0/1     Completed   0          102m   10.20.10.103   10.20.10.103   
kube-system     rke-network-plugin-deploy-job-92wv2       0/1     Completed   0          103m   10.20.10.103   10.20.10.103   
kube-system     tiller-deploy-7695cdcfb8-dcw5w            1/1     Running     0          74m    10.42.6.4        10.20.10.103

traefik 部署

https://blog.51cto.com/michaelkang/category21.html

参考文档

https://www.rancher.cn/docs/rke/latest/cn/example-yamls/
https://www.rancher.cn/docs/rancher/v2.x/cn/install-prepare/download/rke/
https://www.rancher.cn/docs/rancher/v2.x/cn/configuration/cli/
http://www.eryajf.net/2723.html
向AI问一下细节
推荐阅读：
  1. Rancher2.0有哪些优势
  2. 如何使用Argo CD和GitOps解决配置漂移问题

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