Docker can be used for free in a developers laptop. Docker software is available on a community edition, where developers can setup a host and start containerizing the jobs.
There is enterprise edition, with more bells and whistles.
Before we get started on the installation process, here is a piece of code that removes any existing docker related files (in case, there was an earlier attempt to install)
sudo apt-get remove docker docker-engine docker.io containerd runc
Followed by
sudo apt-get update
To obtain community edition, first open your terminal and enter the following:
cat /etc/release
Note the OS type, versions and other details.
Now, visit docker website and get docker community edition.
Also, one can add the repository to their package manager, by:
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Add the docker software to apt package manager
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
Once again, update the package index by:
sudo apt-get update
Followed by,
sudo apt-get install docker-ce docker-ce-cli containerd.io
Check if the docker is running
sudo systemctl status docker
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