Phoenix VPS Hosting: Get High-Performance
& Scalable Solutions

ssh administrator@your_server_ip

sudo -i
whoami

apt update && apt upgrade -y
apt install -y build-essential git curl unzip nginx ufw

apt install -y erlang elixir

elixir -v
erl -version

apt install -y postgresql postgresql-contrib

sudo -u postgres createuser -P myapp_user
sudo -u postgres createdb -O myapp_user myapp_prod

nano /etc/postgresql/$(ls /etc/postgresql)/main/postgresql.conf

listen_addresses = 'localhost'

systemctl restart postgresql

curl -fsSL https://deb.nodesource.com/setup_18.x | bash -
apt install -y nodejs
node -v
npm -v

adduser --system --group --home /var/www/myapp myapp

mkdir -p /var/www
cd /var/www
git clone https://github.com/yourrepo/myapp.git
chown -R myapp:myapp myapp
cd myapp
sudo -u myapp -i
cd /var/www/myapp

mix local.hex --force
mix local.rebar --force

mix deps.get --only prod
MIX_ENV=prod mix compile

cd assets
npm install
npm run deploy
cd ..
MIX_ENV=prod mix phx.digest

MIX_ENV=prod mix release

nano /etc/myapp.env

SECRET_KEY_BASE=your_64_byte_secret
DATABASE_URL=ecto://myapp_user:password@localhost/myapp_prod
PHX_SERVER=true
MIX_ENV=prod
RELEASE_DISTRIBUTION=myapp
ERL_AFLAGS="+K true +A 64"

nano /etc/systemd/system/myapp.service

[Unit]
Description=Phoenix Production App
After=network.target

[Service]
User=myapp
WorkingDirectory=/var/www/myapp
EnvironmentFile=/etc/myapp.env
ExecStart=/var/www/myapp/_build/prod/rel/myapp/bin/myapp start
Restart=always
RestartSec=5
LimitNOFILE=65536
StandardOutput=syslog
StandardError=syslog

[Install]
WantedBy=multi-user.target

systemctl daemon-reload
systemctl enable myapp
systemctl start myapp
journalctl -u myapp -f

nano /etc/nginx/sites-available/myapp

server {
    listen 80;
    server_name yourdomain.com;

    location / {
        proxy_pass http://127.0.0.1:4000;
        proxy_http_version 1.1;

        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

ln -s /etc/nginx/sites-available/myapp /etc/nginx/sites-enabled/
nginx -t
systemctl restart nginx

ufw allow OpenSSH
ufw allow 'Nginx Full'
ufw enable