1、在k8s集群拉起一个Nginx的pod，通过默认80去访问。
[root@k8s-master ~]# cat my-Nginx.yaml
apiVersion: apps/v1
kind: Deployment
Metadata:
name: my-Nginx
spec:
replicas: 1
selector:
matchLabels:
app: Nginx
template:
Metadata:
labels:
app: Nginx
spec:
containers:
- name: Nginx
image: Nginx:1.18.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
- 创建并查看Nginx的pod。
[root@k8s-master ~]# kubectl apply -f my-Nginx.yaml
deployment.apps/my-Nginx created
[root@k8s-master ~]# kubectl get pod my-Nginx-67dfd6c8f9-fn8jf -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READInesS GATES
my-Nginx-67dfd6c8f9-fn8jf 1/1 Running 0 84s 10.244.1.207 k8s-node-1.example.com <none> <none>
- 测试访问Nginx的80端口。
[root@k8s-master ~]# curl http://10.244.1.207
<!DOCTYPE html>
<html>
<head>
<title>Welcome to Nginx!</title>
<style>
[root@k8s-master ~]# cat Nginx-conf.yaml
apiVersion: v1
kind: ConfigMap
Metadata:
name: Nginx-conf
data:
default.conf: |-
server {
listen 8080;
listen [::]:80;
server_name localhost;
location / {
root /usr/share/Nginx/html;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/Nginx/html;
}
}
- 创建并查看ConfigMap。
[root@k8s-master ~]# kubectl apply -f Nginx-conf.yaml
configmap/Nginx-conf created
[root@k8s-master ~]# kubectl get cm Nginx-conf
NAME DATA AGE
Nginx-conf 1 21s
[root@k8s-master ~]# kubectl describe cm Nginx-conf
Name: Nginx-conf
Namespace: default
Labels: <none>
Annotations: <none>
Data
====
default.conf:
----
server {
listen 8080;
listen [::]:80;
server_name localhost;
location / {
root /usr/share/Nginx/html;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/Nginx/html;
}
}
Events: <none>
3、在k8s集群拉起一个Nginx的pod并加载ConfigMap，通过默认8080去访问。
[root@k8s-master ~]# cat my-Nginx-cm.yaml
apiVersion: apps/v1
kind: Deployment
Metadata:
name: my-Nginx
spec:
replicas: 1
selector:
matchLabels:
app: Nginx
template:
Metadata:
labels:
app: Nginx
spec:
containers:
- name: Nginx
image: Nginx:1.18.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
volumeMounts:
- name: config-volume
mountPath: /etc/Nginx/conf.d
volumes:
- name: config-volume
configMap:
name: Nginx-conf
- 创建并查看Nginx的pod。
[root@k8s-master ~]# kubectl apply -f my-Nginx-cm.yaml
deployment.apps/my-Nginx created
[root@k8s-master ~]# kubectl get pod my-Nginx-f79db7777-m9l22 -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READInesS GATES
my-Nginx-f79db7777-m9l22 1/1 Running 0 56s 10.244.1.209 k8s-node-1.example.com <none> <none>
- 测试访问Nginx的8080端口。
[root@k8s-master ~]# curl http://10.244.1.209:8080
<!DOCTYPE html>
<html>
<head>
<title>Welcome to Nginx!</title>
<style>
[root@k8s-master ~]# kubectl exec -it my-Nginx-f79db7777-m9l22 -- /bin/bash
root@my-Nginx-f79db7777-m9l22:/# cat /etc/Nginx/conf.d/default.conf
server {
listen 8080;
listen [::]:80;
server_name localhost;
location / {
root /usr/share/Nginx/html;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/Nginx/html;
}
}root@my-Nginx-f79db7777-m9l22:/# 转自
K8s ConfigMap 存储 Nginx 配置文件
https://mp.weixin.qq.com/s/6aP7xI0bBtf48sOOwYMtYQ
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