K8S/Kubernetes

1、安装Docker

[root@localhost ~]# docker -v
Docker version 18.09.3, build 774a1f4

 

2、使用Docker运行Rancher : stable

[root@localhost ~]# docker run -d --restart=unless-stopped -p 80:80 -p 443:443 rancher/rancher:stable
Unable to find image 'rancher/rancher:stable' locally
stable: Pulling from rancher/rancher
6abc03819f3e: Pull complete 
05731e63f211: Pull complete 
0bd67c50d6be: Pull complete 
67f26e57c9aa: Pull complete 
0ae4a6d5c8c7: Pull complete 
bb5f8b86a713: Pull complete 
d67152696db5: Pull complete 
aa348b037a41: Pull complete 
474a642b0dfb: Pull complete 
0ee278656a03: Pull complete 
e71dded0779c: Pull complete 
bdd3e3cfbd43: Pull complete 
Digest: sha256:97a6bac34ed21b676486cbf7f848fc4483082734a91447cc01b939aab2d69235
Status: Downloaded newer image for rancher/rancher:stable
5851fb343033652352f1ac31e9302a12e17aa98cc1bac8e972fb61387e41551b
[root@localhost ~]# docker ps
CONTAINER ID        IMAGE                    COMMAND             CREATED             STATUS              PORTS                                      NAMES
5851fb343033        rancher/rancher:stable   "entrypoint.sh"     9 seconds ago       Up 8 seconds        0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp   pedantic_jones
[root@localhost ~]# 

 

3、查看ip

[root@localhost ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:eb:e3:df brd ff:ff:ff:ff:ff:ff
    inet 192.168.238.128/24 brd 192.168.238.255 scope global noprefixroute dynamic ens33
       valid_lft 955sec preferred_lft 955sec
    inet6 fe80::382:b55c:dfbd:188c/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 fe80::3f0:5508:6df7:8f0/64 scope link tentative noprefixroute dadfailed 
       valid_lft forever preferred_lft forever
3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:0d:cd:da:e3 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:dff:fecd:dae3/64 scope link 
       valid_lft forever preferred_lft forever
95: veth26bc295@if94: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether b6:20:48:1e:c0:51 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::b420:48ff:fe1e:c051/64 scope link 
       valid_lft forever preferred_lft forever
[root@localhost ~]# 

 

4、访问Rancher UI

  设置admin密码，这里设置为123456

  设置Rancher Server URL，Rancher Server URL是agent节点注册到rancher serverd的地址，需要保证这个地址能够被agent主机访问，不要设置为127.0.0.1或者localhost。

这里设置为192.168.238.128

 

跳转到主页 https://192.168.64.136/g/clusters

 创建K8s集群：

点击custom，添加集群名称k8sdemo，k8s版本默认v1.13.5-rancher1-3，网络组件默认canal，点击下一步

 

保存成功后，勾选Etcd和Control

 保存命令：sudo docker run -d --privileged --restart=unless-stopped --net=host -v /etc/kubernetes:/etc/kubernetes -v /var/run:/var/run rancher/rancher-agent:v2.2.4 --server https://192.168.238.128 --token hrc8xsh7d7j9gtgdspnnrvqk8g79zh4dmtd5rw5r9hlncdcbdjwtxd --ca-checksum 74c3ce0f92c8f19d29ce3cb8c7c393643f35b7b21489b652278d200786954d88 --etcd --controlplane --worker

sudo docker run -d --privileged --restart=unless-stopped --net=host -v /etc/kubernetes:/etc/kubernetes -v /var/run:/var/run rancher/rancher-agent:v2.2.4 --server https://192.168.238.128 --token hrc8xsh7d7j9gtgdspnnrvqk8g79zh4dmtd5rw5r9hlncdcbdjwtxd --ca-checksum 74c3ce0f92c8f19d29ce3cb8c7c393643f35b7b21489b652278d200786954d88 --etcd --controlplane --worker

 

 rancher_server 运行上述命令：

[root@localhost ~]# sudo docker run -d --privileged --restart=unless-stopped --net=host -v /etc/kubernetes:/etc/kubernetes -v /var/run:/var/run rancher/rancher-agent:v2.2.4 --server https://192.168.238.128 --token nzp8h5b6m5jfvmtjfm6m6c5vsscj6hwvjlkw6rsppc6pjd8hqtvrvx --ca-checksum 1251b9cc092d779314aece7f78b6da2444df28129cc5ac812d33b9f948c9837e --etcd --controlplane --worker
Unable to find image 'rancher/rancher-agent:v2.2.4' locally
v2.2.4: Pulling from rancher/rancher-agent
6abc03819f3e: Already exists 
05731e63f211: Already exists 
0bd67c50d6be: Already exists 
e7e8247bd935: Pull complete 
1a35389393bc: Pull complete 
7891f5237e19: Pull complete 
480c5d8e76a1: Pull complete 
a985e4338da5: Pull complete 
786480892ac4: Pull complete 
Digest: sha256:a895cb47ae81a641db64a3f727fe371cc6f2be7e8c98ee03f6f6a911b9d572ab
Status: Downloaded newer image for rancher/rancher-agent:v2.2.4
817c3d9c6de33c2236d88eb58d5b0e4d18822cd09d08563482aaf37e26264136
[root@localhost ~]# docker ps 
CONTAINER ID        IMAGE                          COMMAND                  CREATED             STATUS              PORTS                                      NAMES
724d6ca9fc42        rancher/rancher-agent:v2.2.4   "run.sh --server htt…"   2 minutes ago       Up 2 minutes                                                   adoring_cartwright
ad7e8cbc0471        rancher/rancher-agent:v2.2.4   "run.sh -- share-roo…"   2 minutes ago       Up 2 minutes                                                   share-mnt
817c3d9c6de3        rancher/rancher-agent:v2.2.4   "run.sh --server htt…"   2 minutes ago       Up 2 minutes                                                   vigorous_newton
5851fb343033        rancher/rancher:stable         "entrypoint.sh"          5 minutes ago       Up 5 minutes        0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp   pedantic_jones
[root@localhost ~]# 

 

 

 

 点击完成，提示一台新主机注册成功。

 

等待部署完成。