This build can only access files in the home directory. So Dockerfiles and all other files used in commands like docker build, docker save and docker load need to be in $HOME.
You can change the configuration of this build by modifying the files in /var/snap/docker/current/.
Additional certificates used by the Docker daemon to authenticate with registries need to be added in /var/snap/docker/current/etc/docker/certs.d (instead of /etc/docker/certs.d). This directory can be accessed by other snaps using the docker-registry-certificates content interface.
Running Docker as normal user
By default, Docker is only accessible with root privileges (sudo). If you want to use docker as a regular user, you need to add your user to the docker group.
This snap is built by Canonical based on source code published by Docker, Inc. It is not endorsed or published by Docker, Inc.
Docker and the Docker logo are trademarks or registered trademarks of Docker, Inc. in the United States and/or other countries. Docker, Inc. and other parties may also have trademark rights in other terms used herein.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install docker, simply use the following command: