Network automation engineer and general techie. Admin of mimiclem.me

  • 2 Posts
  • 33 Comments
Joined 3 years ago
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Cake day: June 26th, 2023

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  • I’ve been running a docker compose stack the last couple years with no issue. It can be simple-ish to set up but that depends on your experience level.

    If you have specific questions there are plenty of people willing to help, myself included.

    There are good spots on lemmy for help in this thread as well as an IRC chat for support if needed. I’ve been helped there more than once.


















  • This is the nginx.conf file for my external proxy:

    server {
        listen 443 ssl http2;
        listen [::]:443 ssl http2;
    
        server_name ;
    
        include /config/nginx/ssl.conf;
    
        location / {
            include /config/nginx/proxy.conf;
            include /config/nginx/resolver.conf;
    #        set $upstream_app lemmy;
            set $upstream_app proxy;
            set $upstream_port 8536;
            set $upstream_proto http;
            proxy_pass $upstream_proto://$upstream_app:$upstream_port;
    #        proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_set_header X-Real-IP $remote_addr;
    #        proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            client_max_body_size 50M;            
        }
    }
    
    access_log /var/log/nginx/access.log combined;
    
    You’ll need to change  to the appropriate value. I’m forwarding requests to the proxy container referenced by the compose file
    

  • My nginx.conf for lemmy-nginx is below, sorry if it’s a bit messy. I prefer to comment than remove working config. You’ll have to change

    worker_processes 1;
    events {
        worker_connections 1024;
    }
    http {
    #Beginning of kbin fix
    # We construct a string consistent of the "request method" and "http accept header"
        # and then apply soem ~simply regexp matches to that combination to decide on the
        # HTTP upstream we should proxy the request to.
        #
        # Example strings:
        #
        #   "GET:application/activity+json"
        #   "GET:text/html"
        #   "POST:application/activity+json"
        #
        # You can see some basic match tests in this regex101 matching this configuration
        # https://regex101.com/r/vwMJNc/1
        #
        # Learn more about nginx maps here http://nginx.org/en/docs/http/ngx_http_map_module.html
        map "$request_method:$http_accept" $proxpass {
            # If no explicit matches exists below, send traffic to lemmy-ui
            default "http://lemmy-ui";
    
            # GET/HEAD requests that accepts ActivityPub or Linked Data JSON should go to lemmy.
            #
            # These requests are used by Mastodon and other fediverse instances to look up profile information,
            # discover site information and so on.
            "~^(?:GET|HEAD):.*?application\/(?:activity|ld)\+json" "http://lemmy";
    
            # All non-GET/HEAD requests should go to lemmy
            #
            # Rather than calling out POST, PUT, DELETE, PATCH, CONNECT and all the verbs manually
            # we simply negate the GET|HEAD pattern from above and accept all possibly $http_accept values
            "~^(?!(GET|HEAD)).*:" "http://lemmy";
        }
    ### end of kbin fix
        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 1236;
            listen 8536;
            # change if needed, this is facing the public web
            #server_name localhost;
    	server_name ;
            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 100M;
    
            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;
            }
        }
    }
    #error_log /var/log/nginx/error.log debug;