Rancher2.x部署K8s

1、安装Docker

[root@localhost ~]# docker -v
Docker version 18.09., build 774a1f4

2、使用Docker运行Rancher : stable

[root@localhost ~]# docker run -d --restart=unless-stopped -p : -p : 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"      seconds ago       Up  seconds        0.0.0.0:->/tcp, 0.0.0.0:->/tcp   pedantic_jones
[root@localhost ~]# 

3、查看ip

[root@localhost ~]# ip addr
: lo: <LOOPBACK,UP,LOWER_UP> mtu  qdisc noqueue state UNKNOWN group default qlen
    link/loopback ::::: brd :::::
    inet 127.0.0.1/ scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::/ scope host
       valid_lft forever preferred_lft forever
: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu  qdisc pfifo_fast state UP group default qlen
    link/ether :0c::eb:e3:df brd ff:ff:ff:ff:ff:ff
    inet 192.168.238.128/ brd 192.168.238.255 scope global noprefixroute dynamic ens33
       valid_lft 955sec preferred_lft 955sec
    inet6 fe80:::b55c:dfbd:188c/ scope link noprefixroute
       valid_lft forever preferred_lft forever
    inet6 fe80::3f0::6df7:8f0/ scope link tentative noprefixroute dadfailed
       valid_lft forever preferred_lft forever
: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu  qdisc noqueue state UP group default
    link/ether ::0d:cd:da:e3 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/ brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80:::dff:fecd:dae3/ scope link
       valid_lft forever preferred_lft forever
: veth26bc295@if94: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu  qdisc noqueue master docker0 state UP group default
    link/ether b6:::1e:c0: brd ff:ff:ff:ff:ff:ff link-netnsid
    inet6 fe80::b420:48ff:fe1e:c051/ 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…"    minutes ago       Up  minutes                                                   adoring_cartwright
ad7e8cbc0471        rancher/rancher-agent:v2.2.4   "run.sh -- share-roo…"    minutes ago       Up  minutes                                                   share-mnt
817c3d9c6de3        rancher/rancher-agent:v2.2.4   "run.sh --server htt…"    minutes ago       Up  minutes                                                   vigorous_newton
5851fb343033        rancher/rancher:stable         "entrypoint.sh"           minutes ago       Up  minutes        0.0.0.0:->/tcp, 0.0.0.0:->/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。