Error starting userland proxy: listen tcp4 0.0.0.0:80: bind: address already in use

[bones78]

I want to install MeshCentral as a docker image with this yaml:

services:
  meshcentral:
    restart: always
    container_name: meshcentral
    image: ghcr.io/ylianst/meshcentral:latest
    ports:
      - 443:443
      - 80:88
    environment:
      - NODE_ENV=production
      - HOSTNAME=mydomain (Redirection-url to the dynamic ip of my server)
      - USE_MONGODB=false
      - REVERSE_PROXY=false
      - REVERSE_PROXY_TLS_PORT=
      - IFRAME=false
      - ALLOW_NEW_ACCOUNTS=false
      - WEBRTC=false
      - ALLOWPLUGINS=false
      - LOCALSESSIONRECORDING=true
      - MINIFY=true
    volumes:
      - ./meshcentral/data:/opt/meshcentral/meshcentral-data
      - ./meshcentral/user_files:/opt/meshcentral/meshcentral-files
      - ./meshcentral/backup:/opt/meshcentral/meshcentral-backups
      - ./meshcentral/web:/opt/meshcentral/meshcentral-web

I get this error:
Error starting userland proxy: listen tcp4 0.0.0.0:80: bind: address already in use
I use on the same server Adguardhome. What can I do to use MeshCentral also on this server?

Expected behavior
Working MeshCentral

Server Software (please complete the following information):

• OS: Ubuntu Server 22.04
• Virtualization: Docker
• Network: Adguard home on the same server
• Version: [e.g. 1.0.43]
• Node: [e.g. 18.4.0]

[si458]

docker is basically telling you that something is already running on port 80,
so you need to find out whats running on port 80 (im guessing adguardhome)
also you can run meshcentral on a different port if needs be - 81:80
and access it via https://IPOFSERVER:81

EDIT: just realised, you have the ports the wrong way round,
it should be HOSTPORT:CONTAINERPORT, you have CONTAINERPORT:HOSTPORT

[bones78]

Thanks a lot! It was too late yesterday, I have used the wrong ports (80:80 does not work and I try to fix it the wrong way, same with 443, witch never was affekted):
it works now with:
ports:
- 443:443
- 81:80

But how can Meshcentral optain a correct ssl certificate?
Which value of config.json should be altered?
"redirPort": 80 or "_redirAliasPort": 80

[si458]

Sadly that's going to be difficult as letsencrypt needs to check port 80 for the certificate challenge to verify the ssl.
Meshcentral will create its own self signed certificate which will work
But to get a valid ssl, u are going to need a reverse proxy like nginx/traefik to sit on port 80/443, let it do the ssl certs and forward traffic for domains to ur meshcentral/adguard

[bones78]

I have changed the port AdGuard is using, so port 80 is free and I installed Meshcentral normal on 80:80 and the certificates are generated!
Thank you very much for the help!