demo_devsbox_setup.sh

#!/bin/bash

set -eu

# ---------------- variables --------------------

sandbox_domain="demo.sb.devsbox.io"
email="ilakhmedov@gmail.com"

nginx_conf_content=$(cat << EOM
# redirect http to https
server {
  listen 80 default_server;
  listen [::]:80 default_server;
  server_name _;
  return 301 https://\$host\$request_uri;
}

server {
    listen 8080;
    listen [::]:8080;
    server_name \$domain_name;
    location / {
      proxy_pass http://localhost:8080/;
      proxy_set_header Host \$host;
      proxy_set_header Upgrade \$http_upgrade;
      proxy_set_header Connection upgrade;
      proxy_set_header Accept-Encoding gzip;
    }
}
EOM
)

# ---------------- functions --------------------

nginx_setup() {
	# for amazon linux - sudo amazon-linux-extras install nginx1 -y
	sudo apt update -y && sudo apt upgrade -y
	sudo apt install nginx -y

	echo $nginx_conf_content | sudo tee -a /etc/nginx/sites-available/devsbox

	sudo ln -s /etc/nginx/sites-available/code-server /etc/nginx/sites-enabled/devsbox
	sudo systemctl restart nginx
}

codeserver_setup() {
  # the simplest command to install code-server
  curl -fsSL https://code-server.dev/install.sh | sh

  # enable it at the boot time
  sudo systemctl enable --now code-server@$USER

  echo 'waiting for 10 seconds for code server to start'
  sleep 10

  # set the password
  sudo sed -i.bak 's/password: .*/password: demo/' ~/.config/code-server/config.yaml

  # restart the box to make the changes take effect
  sudo systemctl restart code-server@$USER
}

https_setup() {
  # certbot is a free ssl certificate
  sudo apt install -y nginx certbot python3-certbot-nginx
  # this will append configurations to the nginx file (/etc/nginx/sites-enabled/devsbox)
  sudo certbot --non-interactive --redirect --agree-tos --nginx -d $sandbox_domain -m $email
}

# ---------------- run --------------------

# setup codeserver
codeserver_setup

# proxy nginx to code server 
nginx_setup

# enable https
https_setup