While the OTP releases of Akkoma work on most Linux distributions, they do not work correctly with RedHat-distributions. Therefore from-source installations are the recommended way to go when trying to install Akkoma on Fedora, Centos Stream or RedHat.
However, it is possible to compile your own OTP release of Akkoma for RedHat. Keep in mind that this has a few drawbacks, and has no particular advantage over a from-source installation, since you'll need to install Erlang and Elixir anyway.
This guide will cover a from-source installation. For instructions on how to build your own OTP release, please check out [the OTP for RedHat guide](./otp_redhat_en.md).
## Installation
This guide will assume you are on Fedora 36. This guide should also work with current releases of Centos Stream and RedHat, although it has not been tested yet. It also assumes that you have administrative rights, either as root or a user with [sudo permissions](https://docs.fedoraproject.org/en-US/quick-docs/adding_user_to_sudoers_file/). If you want to run this guide with root, ignore the `sudo` at the beginning of the lines, unless it calls a user like `sudo -Hu akkoma`; in this case, use `su <username> -s $SHELL -c 'command'` instead.
**Note**: To execute a single command as the Akkoma system user, use `sudo -Hu akkoma command`. You can also switch to a shell by using `sudo -Hu akkoma $SHELL`. If you don’t have and want `sudo` on your system, you can use `su` as root user (UID 0) for a single command by using `su -l akkoma -s $SHELL -c 'command'` and `su -l akkoma -s $SHELL` for starting a shell.
* Git clone the AkkomaBE repository and make the Akkoma user the owner of the directory:
* Answer with `yes` if it asks you to install `rebar3`.
* This may take some time, because parts of akkoma get compiled first.
* After that it will ask you a few questions about your instance and generates a configuration file in `config/generated_config.exs`.
* Check the configuration and if all looks right, rename it, so Akkoma will load it (`prod.secret.exs` for productive instance, `dev.secret.exs` for development instances):
* The previous command creates also the file `config/setup_db.psql`, with which you can create the database:
```shell
sudo -Hu postgres psql -f config/setup_db.psql
```
* Now run the database migration:
```shell
sudo -Hu akkoma MIX_ENV=prod mix ecto.migrate
```
* Now you can start Akkoma already
```shell
sudo -Hu akkoma MIX_ENV=prod mix phx.server
```
### Finalize installation
If you want to open your newly installed instance to the world, you should run nginx or some other webserver/proxy in front of Akkoma and you should consider to create a systemd service file for Akkoma.
#### Nginx
* Install nginx, if not already done:
```shell
sudo dnf install nginx
```
* Setup your SSL cert, using your method of choice or certbot. If using certbot, first install it:
If that doesn’t work, make sure, that nginx is not already running. If it still doesn’t work, try setting up nginx first (change ssl “on” to “off” and try again).
---
* Copy the example nginx configuration and activate it: