How to setup nginx when using docker-compose - docker

Question

Below is my ngionx.conf
worker_processes 1;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/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 /var/log/nginx/access.log main;
sendfile on;
keepalive_timeout 65;
server {
listen 80;
access_log /var/log/nginx/access.log main;
location /beta/ {
proxy_pass http://localhost:9001;
}
location /qa/ {
proxy_pass http://localhost:9002;
}
location /alpha/ {
proxy_pass http://localhost:9003;
}
location / {
proxy_pass http://www.google.com;
}
}
}
and below is my docker-compose.yml
version: '3'
services:
Reverse-proxy:
image: nginx
ports:
- 80:80
volumes:
- /nginx.conf:/etc/nginx/nginx.conf
restart: always
GQLbeta:
image: gql-beta
ports:
- 9001:80
restart: always
GQLqa:
image: gql-qa
ports:
- 9002:80
restart: always
GQLalpha:
image: gql-alpha
ports:
- 9003:80
restart: always
When I run docker-compose up -d, all container is running good.
Then I went localhost:80 on my browerser, it show
which I expected to see google page.
And when i went to localhost/beta, it will show
502 Bad Gateway
which i expected will go to localhost: 9001
Why this happened? Am i miss something to setup?

Answer 1

localhost in the docker container is the container itself, so you should to give a names to your app containers and describe them as a upstreams - it will fix your 502. With default location, try this:
location / {
return 301 http://google.com;
}