Hello! I have been struggling through a few tutorials on getting a lemmy instance to work correctly when setup with Docker. I have it mostly done, but there are various issues each time that I do not have the knowledge to properly correct. I am familiar with Docker, and already have an Oracle VPS set up on ARM64 Ubuntu. I already have portainer and an NGINX proxy set up and working okay. I have an existing lemmy instance “running” but not quite working. My best guess here would be to have someone assist with setting up the docker-compose to work with current updates/settings, as well as the config.hjson.

TIA, and I cant wait to have my own entry into the fediverse working right!

  • @[email protected]OP
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    11 year ago

    I see that the instance can be reached, and posts are shown, however comments are not. I have found in the official docs that there is a config snippet for a web facing reverse proxy. https://join-lemmy.org/docs/en/administration/troubleshooting.html https://github.com/LemmyNet/lemmy-ansible/blob/main/templates/nginx.conf

    And this config appears quite different from the “Install with Docker” config instructions: https://join-lemmy.org/docs/en/administration/install_docker.html

    spoiler
    
    worker_processes 1;
    events {
        worker_connections 1024;
    }
    http {
        upstream lemmy {
            # this needs to map to the lemmy (server) docker service hostname
            server "lemmy:8536";
        }
        upstream lemmy-ui {
            # this needs to map to the lemmy-ui docker service hostname
            server "lemmy-ui:1234";
        }
    
        server {
            # this is the port inside docker, not the public one yet
            listen 80;
            # change if needed, this is facing the public web
            server_name localhost;
            server_tokens off;
    
            gzip on;
            gzip_types text/css application/javascript image/svg+xml;
            gzip_vary on;
    
            # Upload limit, relevant for pictrs
            client_max_body_size 20M;
    
            add_header X-Frame-Options SAMEORIGIN;
            add_header X-Content-Type-Options nosniff;
            add_header X-XSS-Protection "1; mode=block";
    
            # frontend general requests
            location / {
                # distinguish between ui requests and backend
                # don't change lemmy-ui or lemmy here, they refer to the upstream definitions on top
                set $proxpass "http://lemmy-ui";
    
                if ($http_accept = "application/activity+json") {
                  set $proxpass "http://lemmy";
                }
                if ($http_accept = "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"") {
                  set $proxpass "http://lemmy";
                }
                if ($request_method = POST) {
                  set $proxpass "http://lemmy";
                }
                proxy_pass $proxpass;
    
                rewrite ^(.+)/+$ $1 permanent;
                # Send actual client IP upstream
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header Host $host;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            }
    
            # backend
            location ~ ^/(api|pictrs|feeds|nodeinfo|.well-known) {
                proxy_pass "http://lemmy";
                # proxy common stuff
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
    
                # Send actual client IP upstream
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header Host $host;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            }
        }
    }
    
    

    Do you know if I should expect to have TWO unique NGINX proxy instances (assuming I use NGINX)? One in-stack, and one separate for web facing reverse proxy? Or do I need a combination of the two configs into one instance?

    I am going to see if I can get a caddy reverse proxy setup in the meantime and see how it performs given your configuration there.

    • I eat words
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      11 year ago

      you can have two nginx proxy instances, one as a front (serving other sites besides lemmy instance) and another - coupled with lemmy instance. in such case the first one can be configured minimally with basic proxy stuff to internal lemmy one, no need for this fancy lemmy and lemmy-ui proxying.

      location /{
         proxy_pass http://nginx-lemmy-docker:someport;
      }
      
      • @[email protected]OP
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        11 year ago

        I believe I have the simple set up for the NPM reverse proxy. Just as you say, it points to the docker address of the lemmyInstance NGINX. I can get to my instance with HTTPS secured and good. Just getting errors when communicating to other instances. I can only imagine it is web socket related, but I am not familiar enough to look at the proxy configs and determine what might be wrong with it unfortunately. I might need to try and find someone to essentially look through it with me in real time.

        spoiler
        ERROR HTTP request{http.method=GET http.scheme="https" http.host=lemmy.bulwarkob.com http.target=/api/v3/ws otel.kind="server" request_id=67d75886-bf48-4444-a435-d98d8fc1e303 http.status_code=101 otel.status_code="OK"}: lemmy_server::api_routes_websocket: couldnt_find_object: Request error: error sending request for url (https://lemmy.ml/.well-known/webfinger?resource=acct:[email protected]): operation timed out
        
           0: lemmy_apub::fetcher::search::search_query_to_object_id
        
                     at crates/apub/src/fetcher/search.rs:17
        
           1: lemmy_apub::api::resolve_object::perform
        
                   with self=ResolveObject { q: "[email protected]", auth: Some(Sensitive) }
        
                     at crates/apub/src/api/resolve_object.rs:21
        
           2: lemmy_server::root_span_builder::HTTP request
        
                   with http.method=GET http.scheme="https" http.host=lemmy.bulwarkob.com http.target=/api/v3/ws otel.kind="server" request_id=67d75886-bf48-4444-a435-d98d8fc1e303 http.status_code=101 otel.status_code="OK"
        
                     at src/root_span_builder.rs:16
        
        spoiler
         WARN Error encountered while processing the incoming HTTP request: lemmy_server::root_span_builder: Request error: error sending request for url (https://beehaw.org/u/Jattatak): operation timed out
        
           0: lemmy_server::root_span_builder::HTTP request
        
                   with http.method=POST http.scheme="https" http.host=lemmy.bulwarkob.com http.target=/inbox otel.kind="server" request_id=f413d3e5-262a-4dac-bc2e-700b9a053954 http.status_code=400 otel.status_code="OK"
        
                     at src/root_span_builder.rs:16
        
        LemmyError { message: None, inner: Request error: error sending request for url (https://beehaw.org/u/Jattatak): operation timed out
        
        Caused by:
        
            0: error sending request for url (https://beehaw.org/u/Jattatak): operation timed out
        
            1: operation timed out, context: "SpanTrace" }
        
        
        • I eat words
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          11 year ago

          from the logs it seems that lemmy docker does not communicate with outside servers.

          also i have a bit different config for lemmy.hjson

          {
            # for more info about the config, check out the documentation
            # https://join-lemmy.org/docs/en/administration/configuration.html
          
            setup: {
              # username for the admin user
              admin_username: "adminuser"
              # password for the admin user
              admin_password: "adminpassword"
              # name of the site (can be changed later)
              site_name: "group.lt"
            }
          
            opentelemetry_url: "http://otel:4317"
          
          
          
            # the domain name of your instance (eg "lemmy.ml")
            hostname: "group.lt"
            # address where lemmy should listen for incoming requests
            bind: "0.0.0.0"
            # port where lemmy should listen for incoming requests
            port: 8536
            # settings related to the postgresql database
            # address where pictrs is available
          pictrs: {
              url: "http://pictrs:8080/"
              # api_key: "API_KEY"
          }
            database: {
              # name of the postgres database for lemmy
              database: "lemmy"
              # username to connect to postgres
              user: "lemmy"
              # password to connect to postgres
              password: "lemmy"
              # host where postgres is running
              host: "postgres"
              # port where postgres can be accessed
              port: 5432
              # maximum number of active sql connections
              pool_size: 5
            }
          #  # optional: email sending configuration
            email: {
          #    # hostname and port of the smtp server
              smtp_server: "postfix:25"
              smtp_from_address: "[email protected]"
              tls_type: false
            }
          
          
          }
          

          also check in admin interface if federation is enabled and you do not blacklist instances

          (https://lemmy.bulwarkob.com/admin) and maybe you can try to enable federation debug mode for awhile

          • @[email protected]OP
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            11 year ago

            The differences I see are the otel link, and the TLS setting:

              # Whether the site is available over TLS. Needs to be true for federation to work.
              tls_enabled: true
            

            I see you dont have it on there, which I would assume means you cant be federated? I have added the otel link and enabled the debug mode. Federation is already enabled and the instance is set to “ALL”. Still no luck on this end. Same status, except now im not getting any log errors in the container logs (Viewed from Portainer).

            Including this in case it is a possible issue: federation enabled, host is lemmy.bulwarkob.com

            Starting http server at 0.0.0.0:8536

            • I eat words
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              11 year ago

              also pictrs: { url: “http://pictrs:8080/” # api_key: “API_KEY” }

              about tls setting - don’t remember why i have removed it, but group.lt federates fine. not sure about what you mean instance set to ALL.

              what about network isolation in portainer? maybe it is on?

              • @[email protected]OP
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                11 year ago

                I see my Pictrs appears to be the same as what you had sent over. Protainer network isolation does not appear to be in place. All are bridged networks, and I would assume access issues would be more encompassing if that were a direct correlation to the issue. Im still betting on User Error for configuration so far. Being myself, of course.

                • I eat words
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                  11 year ago

                  well probably you are right about the user error, but from the logs it seems that it cannot reach other instances - can you enter the shell of the container and check if you are able to ping/curl https://group.lt for example? and network isolation is a checkbox in portainer, according to docs.

                  for the federation itself i have also experienced it not working, when my nginx config was pointing wrongly to lemmy and lemmy-ui depending on the headers.

                  as i have said before - i can reach your instance from my lemmy, but don’t receive anything back.

                  • @[email protected]OP
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                    21 year ago

                    It would seem it was called “Internal” as opposed to isolated on my Portainer. That appears to have been it though. I can get to other communities now. Still having disparity with posts and comments showing up, but Im hoping that will be something to update in time.