Docker Container/Service with Same Port: Best Practices?

EliteCow@lemmy.dbzer0.com to Selfhosted@lemmy.world – 60 points –

I am very new to using docker. I have been used to using dedicated VM's and hosting the applications within the servers OS.

When hosting multiple applications/services that require the same port, is it best practice to spin up a whole new docker server or how should I go about the conflicts?

Ie. Hosting multiple web applications that utilize 443.

Thank you!

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Yes, it'd work just fine because each container listens on port 8000 of their own IP address, not the docker server's IP address. Caddy/Traefik just redirects traffic to that port.

Okay, thanks! Maybe I'll try it in the future.

I've just posted a little example. I'd recommend doing it this way. No more thinking about what port is allready exposed etc