Hi, how do you run forgejo under a reverse proxy while using an ssh channel to pull/push commits?

From what I understand caddy is only able to proxy http traffic.

  • Kekin@lemy.lol
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    6 days ago

    Not really through Caddy but for my setup I have it so the ssh port for Forgejo is only accessible through tailscale. So for push/pulling updated my ssh config file to something like

    Host git.mysite.com HostName tailscaleMachineName User git Port 1234

    Then doing git pull git@git.mysite.com:user/project.git works just fine as long as I am connected to tailscale

    Otherwise you could open the port for Forgejo’s ssh so that you can access it without any vpn

    • wireless_purposely832@lemmy.world
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      4 days ago

      I feel silly for not realizing that the SSH config would be used by Git!

      I thought if Forgejo’s SSH service listened to a non-standard port that you would have to do commands with the port in the command similar to below (following your example). I guess I assumed Git did not directly use the client’s SSH service.

      git pull git@git.mysite.com:1234:user/project.git
      
  • mb_@lemm.ee
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    6 days ago

    There are a few ways to do it, but you don’t use caddy for SSH.

    • host SSH on port 22, forgejo on a different port. Expose both ports to the internet
    • host SSH on a different port, forgejo on port 22. Expose both ports to the internet
    • host SSH on port 22. Forgejo on port 2222. Only 22 exposed to the internet. Change the authorized_keys user of the git user on host to automatically call the internal forgejo SSH app

    Last option is how I run my Gitea instance, authorized keys is managed by gitea so you don’t really need to do anything high maintenance.

    ~git/.ssh/authorized_keys:

    command="/usr/local/bin/gitea --config=/data/gitea/conf/app.ini serv key-9",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty,no-user-rc,restrict ssh-rsa PUBLICKEYHASH
    

    /usr/local/bin/gitea:

    ssh -p 2222 -o StrictHostKeyChecking=no git@127.0.0.14 "SSH_ORIGINAL_COMMAND=\"$SSH_ORIGINAL_COMMAND\" $0 $@"
    

    127.0.0.14 is the local git docker access where I expose the service, but you couldn’t different ports, IPS, etc.

    • wireless_purposely832@lemmy.world
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      7 days ago

      This would only work if there is no other traffic on the port being used (eg: port 22). If both the host SSH service and Forgejo SSH service expect traffic on port 22, then this would not work since server name indication (SNI) is not provided with SSH traffic and Caddy would not be able to identify the appropriate destination for multiple SSH services traffic.

    • sorter_plainview@lemmy.today
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      7 days ago

      It works but I don’t think Forgejo plans to support it in the future. Gitea and Forgejo started to diverge and the documentation regarding docker is somewhat in a deprecated state.

      Edit: I also think the OP’s question is different from this. So this might not be a solution.

  • pe1uca@lemmy.pe1uca.dev
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    7 days ago

    I can’t give you the technical explanation, but it works.
    My Caddyfile only something like this

    @forgejo host forgejo.pe1uca
    handle @forgejo {
    	reverse_proxy :8000
    }
    

    and everything else has worked properly cloning via ssh with git@forgejo.pe1uca:pe1uca/my_repo.git

    My guess is git only needs the host to resolve the IP and then connects to the port directly.

    • wireless_purposely832@lemmy.world
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      7 days ago

      I believe the reverse proxy settings in your post is just configured to handle the http/https connection, not the SSH connection. Instead, SSH connections are likely being routed to the machine running Foegejo via DNS and your reverse proxy is not involved with anything related to SSH.

      I assume you either have SSH disabled on your host or SSH on your host uses a port other than 22?

  • Asudox@programming.dev
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    7 days ago

    Afaik you can reverse proxy the ssh connection. I’ve been connecting to my server using the domain and tld (asudox.dev)

    • wireless_purposely832@lemmy.world
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      7 days ago

      Are you able to provide some details on how you are doing this? I don’t think you can do much with reverse proxies and SSH beyond routing all traffic on port 22 (or the configured SSH port) to whichever port SSH is listening on. In other words, the reverse proxy cannot route SSH traffic for the host on port 22 to the host, route SSH traffic for Forgejo on port 22 to Forgejo’s SSH process, and SFTP traffic on port 22 to the SFTP process - at least not via domain name like a HTTP/HTTPS reverse proxy would work.

      Instead, this would need to be done via IP address where the host SSH process listens on 192.168.1.2, the Forgejo SSH process listens on 192.168.1.3, and the SFTP process listens on 192.168.4. Otherwise, each of those services would need to use different ports.

      • Asudox@programming.dev
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        7 days ago

        Upon more investigation, it seems more like caddy indeed can’t. The only reason it works is because I directly point the A record to the VPS’s IP.

  • Strit@lemmy.linuxuserspace.show
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    7 days ago

    If you connect from outside your LAN, you would need to forward the ssh port to the server in your router settings. If you are inside the LAN, just use the ip address of the forgejo server.

  • Decronym@lemmy.decronym.xyzB
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    4 days ago

    Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

    Fewer Letters More Letters
    DNS Domain Name Service/System
    Git Popular version control system, primarily for code
    HTTP Hypertext Transfer Protocol, the Web
    HTTPS HTTP over SSL
    IP Internet Protocol
    SFTP Secure File Transfer Protocol for encrypted file transfer, over SSH
    SSH Secure Shell for remote terminal access
    SSL Secure Sockets Layer, for transparent encryption
    TCP Transmission Control Protocol, most often over IP
    TLS Transport Layer Security, supersedes SSL
    VPS Virtual Private Server (opposed to shared hosting)
    nginx Popular HTTP server

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