安裝docker-compose
官網上下載docker-compose-Linux-x86_64-1.22.0
chmod +x docker-compose-Linux-x86_64-1.22.0
ln -s docker-compose-Linux-x86_64-1.22.0 docker-compose # 以便實現後續更新
書寫docker-compose文件
mkdir compose
cd compose/
[root@foundation11 compose]# cat docker-compose.yml
apache:
image: rhel7:v1
expose:
- 80
volumes:
- ./web:/var/www/html # 首頁文件
nginx:
image: nginx
expose:
- 80
haproxy:
image: haproxy
volumes:
- ./haproxy:/usr/local/etc/haproxy # haproxy的配置文件路徑
links:
- apache
- nginx
ports:
- "8080:80" # 端口轉換
expose:
- 80 # haproxy對外暴露的端口
編寫haproxy的配置文件
[root@foundation11 compose]# cd haproxy/
[root@foundation11 haproxy]# cat haproxy.cfg
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
stats uri /status
frontend balancer
bind 0.0.0.0:80
default_backend web_backends
backend web_backends
balance roundrobin
server web1 apache:80 check
server web2 nginx:80 check
[root@foundation11 compose]# docker-compose up # 只能在此路徑下執行,需要讀取docker-compose.yml文件
瀏覽器輸入:172.25.254.11
也可以查看後端健康狀態
所有瀏覽器的操作都會在shell上輸出