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dessalines@lemmy.ml

Looking for help in docker installation of Lemmy (lemmy.ml)

submitted 1 year ago* (last edited 1 year ago) by ThorfinnOfThors@lemmy.ml to c/lemmy_support@lemmy.ml

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I followed the docker installation instructions and added the certificate successfully but I get this status:

400 Bad Request | nginx

host nginx error logs:

2023/06/11 12:12:45 [debug] 10161#10161: *16 http upstream process header
2023/06/11 12:12:45 [error] 10161#10161: *16 connect() failed (111: Connection refused) while connecting to upstream, client: 198.199.109.53, server: mydomain.tld, request: "GET /version HTTP/1.1", upstream: "http://127.0.0.1:82/version", host: "xxx.xxx.xx.xxx"
2023/06/11 12:12:45 [debug] 10161#10161: *16 http next upstream, 2
2023/06/11 12:12:45 [debug] 10161#10161: *16 free rr peer 2 4
2023/06/11 12:12:45 [warn] 10161#10161: *16 upstream server temporarily disabled while connecting to upstream, client: 198.199.109.53, server: mydomain.tld, request: "GET /version HTTP/1.1", upstream: "http://127.0.0.1:82/version", host: "xxx.xxx.xx.xxx"

I replaced my host IP and domain for privacy

Please see my comments below for more info. I tried putting all text here in the body but it won't let me post.

EDIT: It is now fixed! What I did is replace the following line in my host nginx:

location / {
         proxy_pass http://localhost:82;
         proxy_set_header Host $host;  <---- replace this
         include proxy_params;
    }

With this:

location / {
         proxy_pass http://127.0.0.1:82;
         proxy_set_header Connection "keep-alive, Upgrade";
         proxy_set_header Upgrade websocket;
         include proxy_params;
    }

And thanks to @frozen@lemmy.frozeninferno.xyz who pointed me in the right direction to allow search to other instances:

networks:
  # communication to web and clients
  lemmyexternalproxy:
  lemmybridge:  <<----- added this
  # communication between lemmy services
  lemmyinternal:
    driver: bridge
    internal: true

services:
  proxy:
    image: nginx:1-alpine
    networks:
      - lemmyinternal
      - lemmyexternalproxy
      - lemmybridge  <<----- added this

  lemmy:
    image: dessalines/lemmy:0.17.3
    hostname: lemmy
    networks:
      - lemmyinternal
      - lemmybridge <<----- added this

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[–] ThorfinnOfThors@lemmy.ml 2 points 1 year ago

Nginx container conf

spoiler

worker_processes 1;

error_log /var/log/nginx/error.log debug;

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";
    }

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  /var/log/nginx/access.log  main;

    server {
        # this is the port inside docker, not the public one yet
        listen 80;
        # listen 8536;
        # 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;
        }
    }
}