Homepage unable to connect other services running in docker in same machine

[CodeWithCJ]

Description

I have installed portainer in Oracle free tier and installed homepage, adguard dns, nginx proxy manager etc.
I used private IP address 10.0.0.10 along with port to configure the services.yaml file. But it is showing error.

homepage version

v0.9.11 (2245cdd, Oct 15, 2024)

Installation method

Docker

Configuration

- Monitor:       
    - Adguard:
        href: https://adguard.asdasd.buzz
        icon: adguard.png
        widget:
          type: adguard               
          url: http://10.0.0.10:8443
          username: SparkyAdguard
          password: qweqwe$
         
    - NPM:
        href: https://nginx.asdasd.buzz
        icon: nginx.png
        widget:
          type: npm
          url: http://10.0.0.10:81
          username: [email protected]
          password: asdasd$
          icon: nginx.png
    - Portainer:
        href: https://port.asdasd.buzz
        icon: portainer.png
        widget:
          type: portainer
          url: https://10.0.0.10:9000
          env: 2
          key: ptr_N/4zpU63nhEmJ

Container Logs

API Error: Unknown error
URL: https://10.0.0.10:9000/api/endpoints/2/docker/containers/json?all=1
Raw Error:
{
"errno": -71,
"code": "EPROTO",
"syscall": "write"
}

Browser Logs

API Error: Unknown error
URL: https://10.0.0.10:9000/api/endpoints/2/docker/containers/json?all=1
Raw Error:
{
"errno": -71,
"code": "EPROTO",
"syscall": "write"
}

Troubleshooting

test

[shamoon]

Troubleshooting

test

Huh?

Please start with the troubleshooting guide that is linked to from the form. This is almost certainly not a homepage thing but a networking / setup thing somehow.

[CodeWithCJ]

I was able to resolve by adding "network_mode: host" in the docker compose. Now it able to connect to other services in my machine.

[shamoon]

You should read the docker networking documentation. Using the host IP (ie using host network mode) between containers defeats (some of) the purpose of containerizing and docker’s internal dns.

Instead, the most common thing is to use a container name as the host eg http://portainer:3000

There are other approaches too

Again, not really anything to do with homepage

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