Virtualbox / Kubuntu / docker

Installation

Install docker and docker-compose:

$ sudo apt install docker docker-compose

Add your user to docker group:

$ sudo usermod -aG docker [username]

Start and stop docker

Manually start:

$ sudo systemctl start docker

Manually stop:

$ sudo systemctl stop docker

Configure start on boot:

$ sudo systemctl enable docker

Disable start on boot:

$ sudo systemctl disable docker

Proxy configuration

Create a systemd drop-in directory for the docker service:

$ sudo mkdir -p /etc/systemd/system/docker.service.d

Create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:

[Service]
Environment="HTTP_PROXY=http://proxy.hostname:proxy_port/" Environment="HTTPS_PROXY=https://proxy.hostname:proxy_port/" Environment="NO_PROXY="localhost,127.0.0.1,::1"