Docker Setup

Jon Brookes - 2020-11-19 14:19

docker on to Ubuntu 1804

The following should work for Ubuntu versions 16 18 and 20 and is taken directly from the docker documentation pages ( see References below ) but for completeness this procedure is test run on a new Ubuntu 1804 server installation.

First, the server is updated to ensure the latest packages are present on the system. Then docker is installed using the docker repositories and finally docker-compose is downloaded and added to the path, ready to use compose files in the normal running of docker and the life-cycle of stand alone containers upon this service.

It is not at this stage intended for clustered multi-node orchestration using things like kubernetes however can be used as a base for these platforms to be deployed to when using docker as a container management system.

Ensure the system is up to date:

apt update -y
apt upgrade -y

install the repository

sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common

add docker GPG key

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

add docker repository

sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

install docker

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

check if docker is working

sudo docker run hello-world

if everything is working the following will be displayed in part :

Hello from Docker!
This message shows that your installation appears to be working correctly.
....

add docker-compose to your system with :

sudo curl -L "https://github.com/docker/compose/releases/download/1.27.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose

to enable your user to run docker commands without having to sudo all of the time add your user name to the docker group with :

sudo usermod -aG docker <your-user-name>

logout / login again or start a new session to effect the change to your access and run the above docker run hello-world to test

and we’re done

docker on raspberry pi 400

The following installs Docker and Docker Compose onto a Raspberry Pi 400:

sudo apt update
sudo curl -sSL https://get.docker.com | sh
sudo usermod -aG docker pi
sudo apt install -y python3-pip libffi-dev
sudo pip3 install docker-compose

References

https://docs.docker.com/engine/install/ubuntu/

https://docs.docker.com/compose/install/

https://www.raspberrypi.org/blog/docker-comes-to-raspberry-pi/

https://withblue.ink/2020/06/24/docker-and-docker-compose-on-raspberry-pi-os.html

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