Deploy Go to ubuntu snippets

Login to Ubuntu VPS

ssh [email protected]

Update packages

apt-get update
apt-get upgrade

Create a new user

adduser robby
adduser robby sudo

Enable firewall

ufw app list
ufw allow OpenSSH
ufw enable
ufw status

Add authorized ssh key

cd /home/robby
mkdir .ssh
nano .ssh/authorized_keys

Then past in your public ssh key.

Login as new user

ssh [email protected]

Install go

cd /tmp
wget https://go.dev/dl/go1.19.linux-amd64.tar.gz
tar -xvf go1.11.linux-amd64.tar.gz
sudo mv go /usr/local

Add go to path

nano ~/.profile

Then add the following line.

export PATH=$PATH:/usr/local/go/bin

install postgres

sudo apt-get install postgresql postgresql-contrib

Create a postgres user and database

sudo -i -u postgres
createdb notes
createuser --interactive
psql

ALTER USER robby WITH PASSWORD 'rk';
GRANT ALL PRIVILEGES ON DATABASE notes TO robby;
\q

Copying local code to remote

rsync -a ./notes [email protected]:/home/robby/go/src --exclude .env

Build Go app on remote

cd /go/src/notes
go build

Setup system.d service

sudo nano /lib/systemd/system/notes.service

Add the service code below.

[Unit]
Description=notes

[Service]
Environment=PORT=3000
Environment=GO_ENV=production
Environment=GIN_MODE=release
Environment=DB_URL=postgresql://robby:[email protected]:5432/notes
Type=simple
Restart=always
RestartSec=5s
ExecStart=/home/robby/go/src/notes/notes

[Install]
WantedBy=multi-user.target

Start the service and check status

sudo service notes start
sudo service notes statusy

Installing nginx

sudo apt install nginx

Enabling nginx on firewall

sudo ufw app list
sudo ufw allow "Nginx Full"
sudo ufw reload
sudo ufw status

Setup nginx

cd /etc/nginx/sites-available
sudo nano notes

Add a server block like below.

server {
    server_name your_domain www.your_domain;

    location / {
        proxy_pass http://localhost:3000;
    }
}

server {
   listen 80;
   listen [::]:80;

   location / {
     proxy_pass http://localhost:3000;
   }
}

Restart nginx

sudo ln -s /etc/nginx/sites-available/notes.com /etc/nginx/sites-enabled/notes.com
sudo nginx -s reload