mirror of https://github.com/easzlab/kubeasz.git
44 lines
1.3 KiB
Markdown
44 lines
1.3 KiB
Markdown
# 修改 APISERVER（MASTER）证书
|
||
|
||
`kubeasz` 创建集群后，APISERVER（MASTER）证书默认 CN 包含如下`域名`和`IP`：参见`roles/kube-master/templates/kubernetes-csr.json.j2`
|
||
|
||
```
|
||
"hosts": [
|
||
"127.0.0.1",
|
||
{% if groups['ex_lb']|length > 0 %}
|
||
"{{ hostvars[groups['ex_lb'][0]]['EX_APISERVER_VIP'] }}",
|
||
{% endif %}
|
||
"{{ inventory_hostname }}",
|
||
"{{ CLUSTER_KUBERNETES_SVC_IP }}",
|
||
{% for host in MASTER_CERT_HOSTS %}
|
||
"{{ host }}",
|
||
{% endfor %}
|
||
"kubernetes",
|
||
"kubernetes.default",
|
||
"kubernetes.default.svc",
|
||
"kubernetes.default.svc.cluster",
|
||
"kubernetes.default.svc.cluster.local"
|
||
],
|
||
```
|
||
|
||
有的时候（比如apiserver地址通过边界防火墙的NAT转换成公网IP访问，或者需要添加公网域名访问）我们需要在 APISERVER（MASTER）证书中添加一些`域名`或者`IP`，可以方便操作如下：
|
||
|
||
## 1.修改配置文件`roles/kube-master/defaults/main.yml`
|
||
|
||
``` bash
|
||
# k8s 集群 master 节点证书配置，可以添加多个ip和域名（比如增加公网ip和域名）
|
||
MASTER_CERT_HOSTS:
|
||
- "10.1.1.1"
|
||
- "k8s.test.io"
|
||
#- "61.182.11.41"
|
||
#- "www.test.com"
|
||
```
|
||
|
||
## 2.执行新证书生成即可
|
||
|
||
``` bash
|
||
$ ansible-playbook 04.kube-master.yml -t change_cert
|
||
# 新证书生效需要重启kube-apiserver.service
|
||
$ ansible-playbook 04.kube-master.yml -t restart_master
|
||
```
|