rocket4ce
A comprehensive guide for deploying Phoenix 1.8 applications using Coolify on Hetzner servers. Covers server setup, Coolify configuration, database creation, Phoenix app preparation with Docker, and complete deployment process including environment variable configuration. Uses a $4.99/month Hetzner server with 2 vCPUs and 2GB RAM.
https://medium.com/@rocket4ce/1-tutorial-deploy-phoenix-1-8-whit-coolify-on-hetzner-873504b9794e
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dogweather
I’ve been thinking about moving to Coolify from Dokku. Dokku does work, but it’s a one-man project and pretty rough around the edges.
rocket4ce
I agree, it’s a good decision.
nickdichev
Why are you considering migrating? I’ve got an app on coolify (cloud) that I’m looking at moving as well, but I’m looking at kamal and uncloud
soyjeansoy
I;m using kamal in one of our internal products.
@rocket4ce what are your thoughts on Kamal over Coolify?
axelbdt
Happy Coolify user here. This is a nice and comprehensive tutorial, good job!
I second using Dockerfile builds. Nixpacks builds are slow, and max out CPU on my small VPS, it led me to get a larger one that’s overkill for actual application load.
rocket4ce
Hi @soyjeansoy, how are you? I hope you’re doing great. From my experience with Kamal and Coolify, if you need more control over deployments to scale, use Kamal. I think Coolify is a great tool, but I haven’t looked much into how to have full control over multiple machines inside a container.
Personally, I prefer Coolify for MVPs and quick testing—and then worry about scaling later.
Neophen
Thank you for the post!
I keep getting these errors when trying to get, i checked the database url and it still doesn’t work. Did you do anything else to set it up?
``
21:09:19.045 [error] Postgrex.Protocol (#PID<0.5574.0>) failed to connect: ** (DBConnection.ConnectionError) tcp connect (qwkk0sgw40c4ocw04ggkkkks:5432): non-existing domain - :nxdomain```
rocket4ce
Hi @neophen, how are you? Thanks for reading the tutorial. Could you give me a bit more context? My first impression is that the environment variable in Coolify isn’t set.
shahryarjb
did you create your database in the service your elixir app exists too?
after that in Postgres you have this field
Postgres URL (internal)copy itand go to your source code
environment-variablesand addDATABASE_URL. as you see the value should be this! consider i just change thepostgreswith ectoNeophen
Hey, just figured out that i had ssl true, it worked all good after that