我有一个撰写文件。当我跑步时,那正常工作
services:
[...]
wordpress-1:
depends_on:
- database
image: wordpress:latest
expose:
- 5000
volumes:
- ./site1/:/var/www/html/
[...]
nginx:
container_name: nginx_
build:
context: ./services/nginx
dockerfile: Dockerfile-prod
ports:
- 80:80
depends_on:
- wordpress-1
networks:
- my-network
[...]
和nginx conf:
server {
listen 80;
server_name example.com;
location / {
proxy_pass http://wordpress-1:80;
proxy_redirect default;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Host $server_name;
}
}
但是,当我将其分成2个docker compose(一个用于wordpress-1服务,一个用于nginx服务)分离后,当我运行compose文件包含nginx时,出现以下错误:[emerg] 1#1:找不到主机在上游的“ wordpress-1”中
你能帮我吗? 谢谢
答案 0 :(得分:1)
默认情况下,Docker-compose为每组服务(例如,每个docker-compose文件)创建一个网络。
如果确实需要单独的docker-compose文件,则可以在服务之间创建共享网络,如下所示:
$ cat a/docker-compose.yml
version: '3.5'
services:
a:
image: alpine
command: sleep 9999
networks: ["mynet"]
networks:
mynet:
name: shared-net
$ cat b/docker-compose.yml
version: '3.5'
services:
b:
image: alpine
command: sleep 9999
networks: ["mynet"]
networks:
mynet:
name: shared-net
启动每个按钮后,您可以从b ping到a:
$ docker exec -it b_b_1 ping -c 1 a_a_1
PING a_a_1 (172.21.0.3): 56 data bytes
64 bytes from 172.21.0.3: seq=0 ttl=64 time=0.081 ms
--- a_a_1 ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max = 0.081/0.081/0.081 ms
它在重新启动之间起作用,例如,如果您重新启动容器。
请注意,如果nginx找不到主机,则是emerg错误,nginx可能会完全停止-这可能是服务重启之间的问题(因为dns解析不再起作用)。