nginx+php部署图例 HPA集群
---
kind: PersistentVolume
apiVersion: v1
metadata:
name: pv-nfs
spec:
volumeMode: Filesystem
capacity:
storage: 30Gi
accessModes:
- ReadWriteOnce
- ReadOnlyMany
- ReadWriteMany
persistentVolumeReclaimPolicy: Retain
nfs:
server: 192.168.1.100
path: /var/webroot
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: pvc-nfs
spec:
volumeMode: Filesystem
accessModes:
- ReadWriteMany
resources:
requests:
storage: 25Gi
---
kind: ConfigMap
apiVersion: v1
metadata:
name: nginx-conf
data:
nginx.conf: |2
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ \.php$ {
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fastcgi.conf;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443 ssl;
# server_name localhost;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}
---
kind: Deployment
apiVersion: apps/v1
metadata:
name: webnginx
spec:
selector:
matchLabels:
myapp: nginx
replicas: 3
template:
metadata:
labels:
myapp: nginx
spec:
volumes:
- name: nginx-php
configMap:
name: nginx-conf
- name: log-data
hostPath:
path: /var/log/weblog
type: DirectoryOrCreate
- name: website
persistentVolumeClaim:
claimName: pvc-nfs
containers:
- name: nginx
image: 192.168.1.100:5000/myos:nginx
volumeMounts:
- name: nginx-php
subPath: nginx.conf
mountPath: /usr/local/nginx/conf/nginx.conf
- name: log-data
mountPath: /usr/local/nginx/logs
- name: website
mountPath: /usr/local/nginx/html
ports:
- protocol: TCP
containerPort: 80
- name: php-backend
image: 192.168.1.100:5000/myos:php-fpm
volumeMounts:
- name: website
mountPath: /usr/local/nginx/html
restartPolicy: Always
---
kind: Service
apiVersion: v1
metadata:
name: webcluster
spec:
ports:
- protocol: TCP
port: 80
targetPort: 80
selector:
myapp: nginx
type: ClusterIP
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: myweb
annotations:
kubernetes.io/ingress.class: "nginx"
spec:
backend:
serviceName: webcluster
servicePort: 80
[root@master ~]# kubectl apply -f webcluster.yaml
persistentvolume/pv-nfs created
persistentvolumeclaim/pvc-nfs created
configmap/nginx-conf created
deployment.apps/webnginx created
service/webcluster created
ingress.extensions/myweb created
[root@master ~]# kubectl get pod
NAME READY STATUS RESTARTS AGE
webnginx-647877b59-hdb64 2/2 Running 0 11s
webnginx-647877b59-ljb6g 2/2 Running 0 11s
webnginx-647877b59-rqmdr 2/2 Running 0 11s
[root@master ~]# kubectl get ingresses
NAME HOSTS ADDRESS PORTS AGE
myweb * 192.168.1.31 80 17s
PHA集群
[root@master ~]# vim myhpa.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: myweb
spec:
selector:
matchLabels:
app: apache
replicas: 1
template:
metadata:
labels:
app: apache
spec:
containers:
- name: apache
image: 192.168.1.100:5000/myos:httpd
ports:
- containerPort: 80
resources:
requests:
cpu: 200m
restartPolicy: Always
---
apiVersion: v1
kind: Service
metadata:
name: web-service
spec:
ports:
- protocol: TCP
port: 80
targetPort: 80
selector:
app: apache
type: ClusterIP
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: my-app
annotations:
kubernetes.io/ingress.class: "nginx"
spec:
backend:
serviceName: web-service
servicePort: 80
---
apiVersion: autoscaling/v1
kind: HorizontalPodAutoscaler
metadata:
name: myweb
spec:
minReplicas: 1
maxReplicas: 3
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: myweb
targetCPUUtilizationPercentage: 50
[root@master ~]# kubectl apply -f myhpa.yaml
[root@master ~]# kubectl get hpa
NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE
myweb Deployment/myweb 0%/50% 1 3 1 15m
