Portainer is an open-source lightweight management UI which allows you to easily manage your Docker host or Swarm cluster. It provides a detailed overview of Docker and allows you to manage containers, images, networks, and volumes.

Here are the steps to install Portainer using Docker Compose: Create a Docker Compose file: Create a docker-compose.yml file in your project directory and add the following content:

1. Create a Docker Compose file: Create a docker-compose.yml file in your project directory and add the following content:

   version: "3"
   
   services:
     portainer:
       image: portainer/portainer-ce:latest
       container_name: portainer
       ports:
         - "75:9000"
       volumes:
         - /etc/localtime:/etc/localtime:ro
         - ./portainer-data:/data
         - /var/run/docker.sock:/var/run/docker.sock
       restart: unless-stopped

2. Run Docker Compose: Run the following command to start Portainer using Docker Compose:

   docker-compose up -d

3. This command will download the Portainer image from the Docker Hub and start a new container.
   Access Portainer: Open a web browser and navigate to http:https://localhost:75. You should see the Portainer login screen. Please note that the portainer-data directory is used to store Portainer data and it's added to the .gitignore file to prevent it from being tracked by Git.