K8s之實踐Pod搭建LNMP

itread01 2020-11-06 01:28:47
k8s pod 搭建 lnmp


 

K8s之實踐Pod搭建LNMP

1、同一pod下的nginx+php+mysql

nginx+php+mysql.yaml檔案
---
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伺服器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安裝nfs(注意work節點也要安裝nfs並啟動)
# 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();
?>

 

 
配置檔案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:採用configMap的掛載方式,如果修改了檔案,需要刪除configMap並重新建立
建立:kubectl create cm ngin-conf --from-file=/conf/default.conf
檢視:kubectl describe cm
刪除:kubectl delete configmaps ngin-conf
cm=configmaps(簡稱)
 
# kubectl apply -f nginx+php+mysql.yaml

 

 
測試:
[[email protected] www]# curl 192.168.10.10:30010
test
[[email protected] 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';
?>

 

再次訪問,success成功啦
[[email protected] 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[[email protected] www]#

 

 
 

2、nginx+php同一個Pod、mysql另一個Pod

 
nginx+php.yaml檔案
---
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伺服器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

 

 
配置檔案default.conf(和1一樣,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安裝nfs(注意work節點也要安裝nfs並啟動)
# 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

 

 
 
測試:
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';
?>

 

再次訪問,success成功啦
[[email protected] ~]# 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[[email protected] ~]#

 

 

3、php一個Pod、nginx一個Pod、mysql一個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伺服器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伺服器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

 

 
配置檔案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;
}
}

 

刪除:kubectl delete configmaps ngin-conf
重新建立: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

 

 
 
 
測試:
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();
?>

 

再次訪問,success成功啦
[[email protected] ~]# 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[[email protected] ~]#

 

 
&nbs
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