Prerequisites

Before you begin, you will need:

• A server running Ubuntu 18.04 or later
• sudo privileges
• An internet connection

Steps

1. Update the repository cache:

sudo apt update

2. Install the necessary packages (nginx-light, certbot, python3-certbot-nginx, and docker.io):

sudo apt install -y nginx-light certbot python3-certbot-nginx docker.io

3. Add the current user to the docker group and switch to this group:

sudo usermod -a -G docker $USER newgrp docker

4. Initialize Docker Swarm mode if it has not yet been initialized:

docker swarm init || true

5. Deploy the Gitea application using Docker Swarm:

docker stack deploy -c stack.yaml gitea

Note: The stack.yaml file contains the configuration for the Gitea application, including the Docker image to use, the ports to expose, and any environment variables to set.