Rough outline of setting up a Ubuntu server for deploying an Elixir app with Distillery.

ssh into server

```
ssh root@ip.address
```

update packages

```
apt-get update
apt-get upgrade
```

install postgres

```
apt-get install postgresql postgresql-contrib
```

switch to postgres role

```
sudo -i -u postgres
```

login to postgres

```
psql
```

add password to postgres user

```
alter user postgres with password '<password>';
```

create database

```
create database <db_name>;
```

create env file `/etc/default/<name>.env`

```
REPLACE_OS_VARS=true
MIX_ENV=prod
PORT=4000
SECRET_KEY_BASE=<key>
DB_USER=postgres
DB_PASSWORD=<db_password>
DB_NAME=<db_name>
```

create daemon service `/etc/systemd/system/<name>.service`

```
[Unit]
After=network.target

[Service]
WorkingDirectory=/opt/<name>
EnvironmentFile=/etc/default/<name>.env
ExecStart=/opt/<name>/_build/prod/rel/<name>/bin/<name> start
ExecStop=/opt/<name>/_build/prod/rel/<name>/bin/<name> stop
User=root
RemainAfterExit=yes
Restart=always

[Install]
WantedBy=multi-user.target
```

reload services

```
systemctl daemon-reload
```

start service

```
systemctl start <name>.service
```

enable service permanently

```
systemctl enable <name>.service
```