Get the $IP from Digital Ocean and use the same $USERNAME as your main computer.
ssh root@$IP
adduser $USERNAME
usermod -aG sudo $USERNAME
ufw allow OpenSSH
ufw enable
rsync --archive --chown=$USERNAME:$USERNAME ~/.ssh /home/$USERNAME
Then logout and log back in:
ssh $USERNAME@$IP
sudo apt update && sudo apt upgrade -y
Install and prepare Node:
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash
nvm install 12.18.3
Keep running with pm2, and pm2 on startup:
npm install -g pm2
sudo env PATH=$PATH:/home/kyle/.nvm/versions/node/v12.18.3/bin /home/kyle/.nvm/versions/node/v12.18.3/lib/node_modules/pm2/bin/pm2 startup systemd -u kyle --hp /home/kyle
Remove the init script using pm2 unstartup systemd.
Once you have an app you want to add, run:
pm2 start app.js
pm2 save
Install nginx:
sudo apt install -y nginx
sudo ufw allow 'Nginx Full'
Write this to .nginx replacing $DOMAIN and $PORT:
server {
listen 80;
server_name $DOMAIN www.$DOMAIN;
location / {
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $http_host;
proxy_pass "http://localhost:$PORT";
}
}
Copy the config over:
sudo cp .nginx /etc/nginx/sites-available/$DOMAIN
sudo ln -s /etc/nginx/sites-available/$DOMAIN /etc/nginx/sites-enabled/
sudo systemctl reload nginx
Setup the DNS A record and install and configure Let's Encrypt:
sudo apt install -y certbot python3-certbot-nginx
sudo certbot --nginx -d $DOMAIN -d www.$DOMAIN