Running A Docker Host in a Proxmox VE LXC Linux Container [CT] 🌱

Creating the Container

  1. Log into the Proxmox VE web UI
  2. Select a storage device from the left navigation that allows storing Container templates
  3. Select CT Templates from the left sub-navigation menu
  4. Click the Templates button
  5. Search for core > Click TurnKey Core to select it > Click the Download button
  6. After the download completes, close the download dialog
  7. Right click the Proxmox node name > Create CT
  8. Enter the Hostname Docker, Password and Confirm the password > Next
  9. Select the Storage where the container template was downloaded and select the TurnKey Core container template > Click Next
  10. Set the Storage device to save the container to > Click Next
  11. Leave the defaults on the CPU tab > Next
  12. On the Memory tab, set the Memory to 2048 > Next
  13. Leave the defaults on the Network tab, setup a static IP address if needed (I prefer to set this from my router) > Next
  14. Leave the defaults on the DNS tab > Next
  15. Verify the summary and click Finish
  16. After the container creation completes, close the download dialog
  17. Right click the Docker LXC container in the left navigation pane > Start
  18. Click console in the left sub-navigation menu

Installing Updates and Docker

  1. Log into the container with the username root and the password set during the setup
  2. On the Initialize Hub services dialog, press tab and select Skip > Press Enter
  3. On the System Notifications dialog, press tab and select Skip > Press Enter
  4. On the Security updates dialog, press tab to select Install to enable automatic updates or Skip > Press Enter
  5. Press Enter to select Advanced Menu
  6. Arrow down and select Quit > Press Enter > Select Yes to confirm > Press Enter
  7. Run the following commands to install updates
    # update software repositories
    apt update
    # install available software updates
    apt upgrade -y
    # clean apt cache
    apt clean
    # reboot the container
    reboot now
  8. Log back into the container
  9. Run the following commands to install Docker
    # install prerequisites
    apt install apt-transport-https ca-certificates curl gnupg2 software-properties-common -y
    # add docker gpg key
    curl -fsSL$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release)/gpg | apt-key add -
    # add docker apt repository
    add-apt-repository "deb [arch=$(dpkg --print-architecture)]$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release) $(lsb_release -cs) stable"
    # update software repositories
    apt update
    # install docker
    apt install docker-ce docker-compose -y
  10. Welcome to your LXC Docker host
  11. At this point you can use docker run and docker-compose to run containers from the terminal


Optionally Install Portainer (Recommended)

Portainer is an open source tool for managing container-based software applications in Kubernetes, Docker, Docker Swarm, Azure ACI and edge environments.

It can be used to set up and manage environments, deploy applications, monitor app performance and triage problems. It is used by software engineers, devops and infrastructure teams all over the world to simplify processes, reduce risk and streamline operations.

  1. Run the following commands to start a Portainer container in Docker
    # create a working directory for portainer
    mkdir ~/docker/portainer_data -p
    # run the portainer container
    docker run -d -p 8000:8000 -p 9000:9000 --name=portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v ~/docker/portainer_data:/data portainer/portainer-ce
    # output the ip docker host address
    ip addr
  2. Open a web browser and navigate to http://DNSorIP:9000
  3. Set an administrator username and password > Click Create user
  4. Click the Docker - Manage the local Docker environment option > Click Connect
  5. Welcome to Portainer, Docker container management from a web browser