akkoma/docs/installation/arch_linux_en.md
2020-09-10 16:05:22 -05:00

210 lines
5.8 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# Installing on Arch Linux
## Installation
This guide will assume that you have administrative rights, either as root or a user with [sudo permissions](https://wiki.archlinux.org/index.php/Sudo). 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 pleroma`; in this case, use `su <username> -s $SHELL -c 'command'` instead.
### Required packages
* `postgresql`
* `elixir`
* `git`
* `base-devel`
* `cmake`
* `file`
#### Optional packages used in this guide
* `nginx` (preferred, example configs for other reverse proxies can be found in the repo)
* `certbot` (or any other ACME client for Lets Encrypt certificates)
### Prepare the system
* First update the system, if not already done:
```shell
sudo pacman -Syu
```
* Install some of the above mentioned programs:
```shell
sudo pacman -S git base-devel elixir cmake file
```
### Install PostgreSQL
[Arch Wiki article](https://wiki.archlinux.org/index.php/PostgreSQL)
* Install the `postgresql` package:
```shell
sudo pacman -S postgresql
```
* Initialize the database cluster:
```shell
sudo -iu postgres initdb -D /var/lib/postgres/data
```
* Start and enable the `postgresql.service`
```shell
sudo systemctl enable --now postgresql.service
```
### Install PleromaBE
* Add a new system user for the Pleroma service:
```shell
sudo useradd -r -s /bin/false -m -d /var/lib/pleroma -U pleroma
```
**Note**: To execute a single command as the Pleroma system user, use `sudo -Hu pleroma command`. You can also switch to a shell by using `sudo -Hu pleroma $SHELL`. If you dont have and want `sudo` on your system, you can use `su` as root user (UID 0) for a single command by using `su -l pleroma -s $SHELL -c 'command'` and `su -l pleroma -s $SHELL` for starting a shell.
* Git clone the PleromaBE repository and make the Pleroma user the owner of the directory:
```shell
sudo mkdir -p /opt/pleroma
sudo chown -R pleroma:pleroma /opt/pleroma
sudo -Hu pleroma git clone -b stable https://git.pleroma.social/pleroma/pleroma /opt/pleroma
```
* Change to the new directory:
```shell
cd /opt/pleroma
```
* Install the dependencies for Pleroma and answer with `yes` if it asks you to install `Hex`:
```shell
sudo -Hu pleroma mix deps.get
```
* Generate the configuration: `sudo -Hu pleroma mix pleroma.instance gen`
* Answer with `yes` if it asks you to install `rebar3`.
* This may take some time, because parts of pleroma 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 Pleroma will load it (`prod.secret.exs` for productive instance, `dev.secret.exs` for development instances):
```shell
mv config/{generated_config.exs,prod.secret.exs}
```
* 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 pleroma MIX_ENV=prod mix ecto.migrate
```
* Now you can start Pleroma already
```shell
sudo -Hu pleroma 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 Pleroma and you should consider to create a systemd service file for Pleroma.
#### Nginx
* Install nginx, if not already done:
```shell
sudo pacman -S nginx
```
* Create directories for available and enabled sites:
```shell
sudo mkdir -p /etc/nginx/sites-{available,enabled}
```
* Append the following line at the end of the `http` block in `/etc/nginx/nginx.conf`:
```Nginx
include sites-enabled/*;
```
* Setup your SSL cert, using your method of choice or certbot. If using certbot, first install it:
```shell
sudo pacman -S certbot certbot-nginx
```
and then set it up:
```shell
sudo mkdir -p /var/lib/letsencrypt/
sudo certbot certonly --email <your@emailaddress> -d <yourdomain> --standalone
```
If that doesnt work, make sure, that nginx is not already running. If it still doesnt work, try setting up nginx first (change ssl “on” to “off” and try again).
---
* Copy the example nginx configuration and activate it:
```shell
sudo cp /opt/pleroma/installation/pleroma.nginx /etc/nginx/sites-available/pleroma.nginx
sudo ln -s /etc/nginx/sites-available/pleroma.nginx /etc/nginx/sites-enabled/pleroma.nginx
```
* Before starting nginx edit the configuration and change it to your needs (e.g. change servername, change cert paths)
* Enable and start nginx:
```shell
sudo systemctl enable --now nginx.service
```
If you need to renew the certificate in the future, uncomment the relevant location block in the nginx config and run:
```shell
sudo certbot certonly --email <your@emailaddress> -d <yourdomain> --webroot -w /var/lib/letsencrypt/
```
#### Other webserver/proxies
You can find example configurations for them in `/opt/pleroma/installation/`.
#### Systemd service
* Copy example service file
```shell
sudo cp /opt/pleroma/installation/pleroma.service /etc/systemd/system/pleroma.service
```
* Edit the service file and make sure that all paths fit your installation
* Enable and start `pleroma.service`:
```shell
sudo systemctl enable --now pleroma.service
```
#### Create your first user
If your instance is up and running, you can create your first user with administrative rights with the following task:
```shell
sudo -Hu pleroma MIX_ENV=prod mix pleroma.user new <username> <your@emailaddress> --admin
```
#### Further reading
{! backend/installation/further_reading.include !}
## Questions
Questions about the installation or didnt it work as it should be, ask in [#pleroma:matrix.org](https://matrix.heldscal.la/#/room/#freenode_#pleroma:matrix.org) or IRC Channel **#pleroma** on **Freenode**.