K8s之实践Pod搭建LNMP

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K8s之实践Pod搭建LNMP

K8s之实践Pod搭建LNMP

1、同一pod下的nginx+php+mysql

nginx+php+mysql.yaml文件

---
apiVersion: v1
kind: Secret
metadata:
name: mysql-pass
namespace: default
type: Qpaque
data:
#echo -n "Passwd123" |base64
password: UGFzc3dkMTIz
#echo -n "tmp" |base64
database: dG1w
#echo -n "123" |base64
passwd: MTIz
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-php-mysql
spec:
selector:
matchLabels:
app: nginx-php-mysql
replicas: 1
template:
metadata:
labels:
app: nginx-php-mysql
spec:
containers:
- name: php
image: registry.cn-shenzhen.aliyuncs.com/user-sum/php
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9000
volumeMounts:
- name: nginx-data
mountPath: /var/www/html/
- name: nginx
image: registry.cn-shenzhen.aliyuncs.com/user-sum/alpine:nginx1.18.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
volumeMounts:
- name: nginx-data
mountPath: /usr/share/nginx/html
- name: nginx-conf
mountPath: /etc/nginx/conf.d/
- image: mysql:5.7
imagePullPolicy: IfNotPresent
name: mysql
env:
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=password=Passwd123
name: mysql-pass
key: password
- name: MYSQL_DATABASE
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=database=tmp
name: mysql-pass
key: database
- name: MYSQL_USER
value: sun
- name: MYSQL_PASSWORD
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=passwd=123
name: mysql-pass
key: passwd
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: nginx-data
nfs:
server: 192.168.10.10  #nfs server服务器IP
path: "/www"
#kubectl create cm ngin-conf --from-file=/conf/default.conf
- name: nginx-conf
configMap:
name: ngin-conf
items:
- key: default.conf
path: add.conf
- name: mysql-persistent-storage
emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
name: nginx-php-mysql
spec:
type: NodePort
ports:
- name: nginx
port: 80
protocol: TCP
targetPort: 80
nodePort: 30010
selector:
app: nginx-php-mysql

master安装nfs(注意work节点也要安装nfs并启动)

# yum -y install nfs-utils
# systemctl start nfs
# echo "/www    192.168.10.0/24(rw,sync,no_root_squash)" >> /etc/exports
# systemctl restart nfs
# echo "test" > /www/index.html
# cat /www/index.php
<?php
phpinfo();
?>

配置文件default.conf

# cat /conf/default.conf

server {
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;
}
location ~ \.php$ {
fastcgi_pass   127.0.0.1:9000;
fastcgi_index  index.php;
fastcgi_param  SCRIPT_FILENAME  /var/www/html/$fastcgi_script_name;
include        fastcgi_params;
}
}
# kubectl create cm ngin-conf --from-file=/conf/default.conf

注意:采用configMap的挂载方式,如果修改了文件,需要删除configMap并重新创建

创建:kubectl create cm ngin-conf –from-file=/conf/default.conf

查看:kubectl describe cm

删除: kubectl delete configmaps ngin-conf

cm= configmaps(简称)

# kubectl apply -f nginx+php+mysql.yaml

测试:

[root@master-test www]# curl 192.168.10.10:30010
test
[root@master-test www]# curl 192.168.10.10:30010/index.php -I
HTTP/1.1 200 OK
Server: nginx/1.18.0
Date: Wed, 04 Nov 2020 02:50:30 GMT
Content-Type: text/html
Connection: keep-alive
X-Powered-By: PHP/5.4.16

修改vim /www/index.php

<h1>Test php-mysql </h1>
<?php
mysqli_connect('127.0.0.1','sun','123') or die('failed');
echo 'success';
?>

再次访问,success成功啦

[root@master-test www]# curl 192.168.10.10:30010/index.php -i
HTTP/1.1 200 OK
Server: nginx/1.18.0
Date: Wed, 04 Nov 2020 02:54:15 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.4.16
<h1>Test php-mysql </h1>
success[root@master-test www]#

2、nginx+php同一个Pod、mysql另一个Pod

nginx+php.yaml文件

---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-php
spec:
selector:
matchLabels:
app: nginx-php
replicas: 1
template:
metadata:
labels:
app: nginx-php
spec:
containers:
- name: php
image: registry.cn-shenzhen.aliyuncs.com/user-sum/php
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9000
volumeMounts:
- name: nginx-data
mountPath: /var/www/html/
- name: nginx
image: registry.cn-shenzhen.aliyuncs.com/user-sum/alpine:nginx1.18.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
volumeMounts:
- name: nginx-data
mountPath: /usr/share/nginx/html
- name: nginx-conf
mountPath: /etc/nginx/conf.d/
volumes:
- name: nginx-data
nfs:
server: 192.168.10.10  #nfs server服务器IP
path: "/www"
- name: nginx-conf
configMap:
name: ngin-conf
items:
- key: default.conf
path: add.conf
---
apiVersion: v1
kind: Service
metadata:
name: nginx-php
spec:
type: NodePort
ports:
- name: nginx
port: 80
protocol: TCP
targetPort: 80
nodePort: 30010
selector:
app: nginx-php

配置文件default.conf(和1一样,不用修改)

# cat /conf/default.conf

server {
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;
}
location ~ \.php$ {
fastcgi_pass   127.0.0.1:9000;
fastcgi_index  index.php;
fastcgi_param  SCRIPT_FILENAME  /var/www/html/$fastcgi_script_name;
include        fastcgi_params;
}
}

master安装nfs(注意work节点也要安装nfs并启动)

# yum -y install nfs-utils
# systemctl start nfs
# echo "/www    192.168.10.0/24(rw,sync,no_root_squash)" >> /etc/exports
# systemctl restart nfs
# echo "test" > /www/index.html
# cat /www/index.php
<?php
phpinfo();
?>
# kubectl apply -f nginx+php.yaml

mysql.yaml

---
apiVersion: v1
kind: Secret
metadata:
name: mysql-pass
namespace: default
type: Qpaque
data:
#echo -n "Passwd123" |base64
password: UGFzc3dkMTIz
#echo -n "tmp" |base64
database: dG1w
#echo -n "123" |base64
passwd: MTIz
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql
replicas: 1
template:
metadata:
labels:
app: mysql
spec:
containers:
- image: mysql:5.7
imagePullPolicy: IfNotPresent
name: mysql
env:
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=password=Passwd123
name: mysql-pass
key: password
- name: MYSQL_DATABASE
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=database=tmp
name: mysql-pass
key: database
- name: MYSQL_USER
value: sun
- name: MYSQL_PASSWORD
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=passwd=123
name: mysql-pass
key: passwd
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
name: mysql
labels:
app: mysql
spec:
ports:
- name: mysql
port: 3306
targetPort: 3306
selector:
app: mysql
# kubectl apply -f mysql.yaml

测试:

修改vim /www/index.php

<h1>Test php-mysql </h1>
<?php
mysqli_connect('10.106.159.184','sun','123') or die('failed');
echo 'success';
?>

再次访问,success成功啦

[root@master-test ~]# curl 192.168.10.10:30010/index.php -i
HTTP/1.1 200 OK
Server: nginx/1.18.0
Date: Wed, 04 Nov 2020 03:40:58 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.4.16
<h1>Test php-mysql </h1>
success[root@master-test ~]#

3、php一个Pod、nginx一个Pod、mysql一个Pod

php.yaml

---
apiVersion: apps/v1
kind: Deployment
metadata:
name: php
spec:
selector:
matchLabels:
app: php
replicas: 1
template:
metadata:
labels:
app: php
spec:
containers:
- name: php
image: registry.cn-shenzhen.aliyuncs.com/user-sum/php
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9000
volumeMounts:
- name: nginx-data
mountPath: /var/www/html/
volumes:
- name: nginx-data
nfs:
server: 192.168.10.10  #nfs server服务器IP
path: "/www"
---
apiVersion: v1
kind: Service
metadata:
name: php
spec:
ports:
- name: php
port: 9000
protocol: TCP
targetPort: 9000
selector:
app: php
# kubectl aapply -f php.yml
nginx.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx
spec:
selector:
matchLabels:
app: nginx
replicas: 1
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: registry.cn-shenzhen.aliyuncs.com/user-sum/alpine:nginx1.18.0
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
volumeMounts:
- name: nginx-data
mountPath: /usr/share/nginx/html
- name: nginx-conf
mountPath: /etc/nginx/conf.d/
volumes:
- name: nginx-data
nfs:
server: 192.168.10.10  #nfs server服务器IP
path: "/www"
- name: nginx-conf
configMap:
name: ngin-conf
items:
- key: default.conf
path: add.conf
---
apiVersion: v1
kind: Service
metadata:
name: nginx
spec:
type: NodePort
ports:
- name: nginx
port: 80
protocol: TCP
targetPort: 80
nodePort: 30010
selector:
app: nginx

 

配置文件nginx.conf

# cat /conf/default.conf

server {
listen       80;
server_name  localhost;
location / {
root   /usr/share/nginx/html;
index  index.php index.html index.htm;
}
error_page   500 502 503 504  /50x.html;
location = /50x.html {
root   /usr/share/nginx/html;
}
location ~ \.php$ {
fastcgi_pass   10.108.129.142:9000;
fastcgi_index  index.php;
fastcgi_param  SCRIPT_FILENAME  /var/www/html/$fastcgi_script_name;
include        fastcgi_params;
}
}

删除:kubectl delete configmaps ngin-conf

重新创建:kubectl create cm ngin-conf –from-file=/conf/default.conf

# kubectl apply -f nginx.yaml

mysql.yaml

---
apiVersion: v1
kind: Secret
metadata:
name: mysql-pass
namespace: default
type: Qpaque
data:
#echo -n "Passwd123" |base64
password: UGFzc3dkMTIz
#echo -n "tmp" |base64
database: dG1w
#echo -n "123" |base64
passwd: MTIz
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql
replicas: 1
template:
metadata:
labels:
app: mysql
spec:
containers:
- image: mysql:5.7
imagePullPolicy: IfNotPresent
name: mysql
env:
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=password=Passwd123
name: mysql-pass
key: password
- name: MYSQL_DATABASE
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=database=tmp
name: mysql-pass
key: database
- name: MYSQL_USER
value: sun
- name: MYSQL_PASSWORD
valueFrom:
secretKeyRef:
#kubectl create secret generic mysql-pass --from-literal=passwd=123
name: mysql-pass
key: passwd
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
name: mysql
labels:
app: mysql
spec:
ports:
- name: mysql
port: 3306
targetPort: 3306
selector:
app: mysql
# kubectl apply -f mysql.yaml

测试:

修改vim /www/index.php

<h1>Test php-mysql </h1>
<?php
mysqli_connect('10.109.228.202','sun','123') or die('failed');
echo 'success';
#  phpinfo();
?>

再次访问,success成功啦

[root@master-test ~]# curl 192.168.10.10:30010/index.php -i
HTTP/1.1 200 OK
Server: nginx/1.18.0
Date: Wed, 04 Nov 2020 05:24:57 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.4.16
<h1>Test php-mysql </h1>
success[root@master-test ~]#

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