Launch an Ubuntu Instance and SSH Login to the Terminal

Install Docker :

Reference: https://docs.docker.com/engine/install/ubuntu/

# Add Docker's official GPG key:

sudo apt-get update
sudo apt-get install ca-certificates curl gnupg
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

# Add the repository to Apt sources:
echo \
  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

# Install the Docker packages.

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Test Docker:

sudo docker run hello-world

Install Listmonk:

Reference: https://listmonk.app/docs/installation/

mkdir listmonk && cd listmonk
sh -c "$(curl -fsSL https://raw.githubusercontent.com/knadh/listmonk/master/install-prod.sh)"

Output:

Listmonk is now up and running. Visit http://localhost:9000 in your browser.

Default Username listmonk and password listmonk .

Nginx Conf:

server {
    server_name  *.sanjaysikdar.dev;
    server_tokens off;
    client_max_body_size 100M;

    location / {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        add_header 'Access-Control-Allow-Origin' 'https://sanjaysikdar.dev';
        proxy_redirect off;
        proxy_pass http://localhost:9000;
    }
}

Shell Script:

#!/bin/bash
select opt in Restart CheckStatus UpdateListMonk Quit
do
    case $opt in
        Restart)  
            sudo nginx -t && sudo systemctl restart nginx
            echo "Nginx has been restarted."
            exit 0
            ;;

        CheckStatus)  
            sudo systemctl status nginx
            echo "Shell by Sanjay Sikdar"
            exit 0
            ;;
        UpdateListMonk)  
            cd /var/listmonk
            docker-compose down
            docker-compose pull && docker-compose run --rm app ./listmonk --upgrade
            docker-compose up -d app db
            exit 0
            ;;
        Quit)
            echo "Exited!"
            exit 0
            ;;
        *)
            echo "invalid option"
            ;;
    esac
done