picoblaanket

SOLUTION:

The issue was - the ‘New UI’ docker image was automatically building for AMD64, but the Linux server is an ARM64/v8.

I had to add QEMU and multi-platform build commands to the docker-image.yml file (in Github Actions).

This creates an additional docker image for ARM64 machines, which loads and runs successfully.

This was discovered by manually building a docker container, and receiving the following message: WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested

So if you get that message, you must build your docker image for the platform you are on (or multiple platforms).

** == ** == ** == ** == ** == ** == **

ORIGINAL ERROR:

THE SETUP and ERROR

1. I made a fresh ansible install, on a fresh ubuntu 20.04 server - the Lemmy instance runs perfectly.
2. I made a fresh fork of the 16.7 Lemmy-UI.
3. I built a docker-image of that forked UI, and loaded it via docker-compose (here is my docker-image.yml build file ).

Now I am getting a “502 Bad Gateway - nginx” error (the site does not load).

NGINX error log shows:

connect() failed (111: Connection refused) while connecting to upstream, client: 75.222.232.212, server: ggg.com, request: "GET / HTTP/2.0", upstream: "http://0.0.0.0:15153/", host: "ggg.com"

• Nginx config has not been modified (but here is the config anyway - ggg.conf)

• Docker log is clean.

**

DIAGNOSIS

When I list docker containers, there is no PORT mapped to the ‘New-UI’ image container.

(However, when running the ‘default lemmy-UI’ image container, the PORT is successfully mapped to 127.0.0.1:15153->1234/tcp)

It seems I must create a new Container, using the ‘New-UI’ image, and map the PORT to 127.0.0.1:15153->1234/tcp (unless an Environment Variable can do it).

^ Now I must figure out that exact docker command. (because docker run -d -p 127.0.0.1:15153:1234 [ImageID] does not successfully create the container.)

**

Here are the Env Vars I’ve added (in various combinations/values):

  lemmy-ui:
    environment:
      - LEMMY_UI_HTTPS=true
      - LEMMY_UI_LEMMY_INTERNAL_HOST=lemmy:8536
      - LEMMY_UI_LEMMY_EXTERNAL_HOST=ggg.com
      - LEMMY_UI_DISABLE_CSP=true
      # - LEMMY_UI_LEMMY_WS_HOST=lemmy:8536
      # - LEMMY_UI_HOST=0.0.0.0:1234

here is the full docker-compose.yml (only changed Env Vars)

QUESTION:

Where should we declare those new UI Environment Variables? (from the readme)

ANSWER:

Add the new UI Environment Variables to docker-compose.yml (on the server). Like this:

  lemmy-ui:
    image: ggg/ui2:latest
    ports:
      - "127.0.0.1:23587:1234"
    restart: always
    environment:
      - LEMMY_INTERNAL_HOST=lemmy:8536
      - LEMMY_EXTERNAL_HOST=ggg.quest
      - LEMMY_HTTPS=true
      - LEMMY_UI_LEMMY_EXTERNAL_HOST=ggg.com
      - LEMMY_UI_LEMMY_INTERNAL_HOST=lemmy:8536
      - LEMMY_UI_HTTPS=true
    depends_on:
      - lemmy

UPDATE: HERE IS THE ANSWER

^^^^^^^

Hi,

Lemmy is awesome.

I’m having trouble launching my instance.

Here is a home page screenshot:

HERE'S THE FULL ERROR:

“Found. Redirecting to /404?err=FetchError: invalid json response body at http://lemmy:8536/api/v3/post/list?page=1&limit=20&sort=Active&type_=Local&saved_only=false 
reason: Unexpected token N in JSON at position 0”

IF YOU CLICK ‘SIGN UP’, CONSOLE SAYS:

client.js:formatted:60298 Uncaught TypeError: Cannot read properties of undefined (reading 'site')
    at n.get (client.js:formatted:60298)
    at n.get (client.js:formatted:60293)
    at n.a.render (client.js:formatted:59987)
    at Ae (client.js:formatted:7378)
    at Pe (client.js:formatted:7410)
    at client.js:formatted:7420
    at Ve (client.js:formatted:7423)
    at client.js:formatted:7495
    at Ue (client.js:formatted:7497)
    at qe (client.js:formatted:7819)

OFTEN REQUESTED LOGS / CONFIGS: (pastebin)

Docker logs (2 errors)

• TL-DR (the 2 errors):
• lemmy_server:::root_span_builder:NotFound
• lemmy_server:::root_span_builder:captcha_incorrect

Lemmy config

Nginx config (/etc/nginx/sites-enabled/ggg.com.conf)

PORTS

I have the following ports open on the server (maybe too many):

• 22, 80, 443, 8536, 5432, 1235

And the following rules in IPTABLES (maybe too many)

• A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
• A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
• A INPUT -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT
• A INPUT -p tcp -m state --state NEW -m tcp --dport 8536 -j ACCEPT
• A INPUT -p tcp -m state --state NEW -m tcp --dport 5432 -j ACCEPT
• A INPUT -p tcp -m state --state NEW -m tcp --dport 1235 -j ACCEPT

I've failed at several 'fixes'.

If anyone knows what to do, I’d really appreciate the guidance.

If any more info is needed, I'll gladly provide.

Thank you

A couple questions about the lemmy-ansible instructions:

Step 1 - “Clone this repo: /lemmy-ansible.git”

QUESTION 1 - Clone it to my local machine, correct? (not directly onto the VPS)

ANSWER: - Yes, clone lemmy-ansible to local.

Step 2 - “Edit the config file”

QUESTION 2 - By default, config.hjson has values like hostname: "{{ domain }}" - and - password: "{{ postgres_password }}".

• Are those “{{values}}” automatically pulled from the hosts file?

• or just directly edit them in the config.hjson file?

ANSWER: - Edit them directly in the config.hjson file.

Thank you for your patience.

I want to do it right / understand.

UPDATE: Installed Lemmy on VPS via SSH