I am trying for nginx proxy manager (running in a docker container) to connect to another docker container that has port 8080 open on it. When I setup the proxy to connect to 192.168.0.29:8080 the ip address of the host, but it doesn't work, the browser just says that the site didn't send any data.
I tried setting up the reverse proxy with other services (that weren't running inside a docker container), and they worked flawlessly. So, I've concluded, the problem is something with the docker containers.
First, I tried replacing the ip address with the address of the container (shown in portainer) which showed to be 172.17.0.2. But, that didn't work. I can confirm that both containers are in the same network, bridge.
I could not find any solutions for this problem either here, at Stack Overflow, or anywhere else. Hope there's enough data to solve this problem. Thanks ahead of time!
Edit:
running arp -na from within the container gives this output:
[root@docker-00244f7ab2cc:/app]# arp -na
? (172.17.0.1) at 02:42:d1:fc:fc:6b [ether] on eth0
You simply need to set both NGINXPM and your containers on the same non-default bridge network (Default bridge cant resolve hostnames which are easier to work with). Setting your containers on the host networks is not recommended since they are no longer isolated from the rest of your network.