You may want to check out the step before this, Building a Linux Open-Source GIS Environment with Windows: Part 1 - WSL!

Installing Docker and Docker-Compose

Docker lets you run containers on your computer (or Subsystem in this case).

Docker-compose is a simple Docker orchestrator that’s great for small systems.

1. Docker and digitalocean have put together some great information on this, and I could never do better, so I used their documents to put together a script:
2. https://docs.docker.com/engine/install/ubuntu/
3. https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-compose-on-ubuntu-20-04
4. You can paste this into Terminal

export user=$(whoami)
sudo apt-get update
sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

echo \
  "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update && sudo apt-get install \
    docker-ce \
    docker-ce-cli \
    containerd.io

sudo usermod -aG docker ${USER}

# This step will ask you for your password again
su - ${USER}
# start docker (This is needed with WSL)
sudo service docker start
# exit out of the su command
exit

1. Let’s install docker-compose
2. Get the latest version number of Docker Compose

       export DOCKERCOMPOSEVERSION=$(curl -s https://github.com/docker/compose/releases/latest | perl -pe 's/^.+\/tag\/(.+?)">.+/\1/g')
   

3. Install the latest docker-compose

       sudo curl -L "https://github.com/docker/compose/releases/download/${DOCKERCOMPOSEVERSION}/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && \
       sudo chmod +x /usr/local/bin/docker-compose
   

4. Verify your version by running this command

    docker-compose --version
   

5. You now have Docker and docker-compose installed!