this post was submitted on 13 May 2024
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Problems with creating my own instance (feddit.de)
submitted 6 months ago by SomeBoyo@feddit.de to c/selfhosted@lemmy.world
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I am currently trying to create my own Lemmy instance and am following the join-lemmy.org docker guide. But unfortunately docker compose up doesn't work with the default config and throw's a yaml: line 32: found character that cannot start any token error. Is there something I can do to fix this?

The section in question is

{% for item in lemmy_env_vars %}
{% for key, value in item.items() %}
      - {{ key }}={{ value }}
{% endfor %}
{% endfor %}
{% endif %}
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[–] walden@sub.wetshaving.social 20 points 6 months ago* (last edited 6 months ago) (5 children)

I'm not a pro at Docker, but I've spun up over 30 different services using Docker Compose so I'm more than a novice. I would say that Lemmy's documentation is the worst I've ever seen.

The website points you at that compose file which is (I think?) designed for Ansible. I think there's another example somewhere without all the jibbery joo, but I can't search for it right now.

Edit: here it is https://github.com/LemmyNet/lemmy/blob/main/docker/docker-compose.yml

No idea why they don't link to that one in the first place. I'd fix it if I knew how.

[–] SomeBoyo@feddit.de 1 points 6 months ago (2 children)

Thank you, I was wondering, what that stuff was

[–] walden@sub.wetshaving.social 2 points 6 months ago

I just updated my comment above with more info, FYI.

[–] hedgehog@ttrpg.network 2 points 6 months ago

If you use that docker compose file, I recommend you comment out the build section and uncomment the image section in the lemmy service.

I also recommend you use a reverse proxy and Docker networks rather than exposing the postgres instance on port 5433, but if you aren’t familiar with Docker networks you can leave it as is for now. If you’re running locally and don’t open that port in your router’s firewall, it’s a non-issue unless there’s an attacker on your LAN, but given that you’re not gaining anything from exposing it (unless you need to connect to the DB directly regularly - as a one off you could temporarily add the port mapping), it doesn’t make sense to increase your attack surface for no benefit.

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