To install Docker on Ubuntu, we need to be able to add a custom repository.
This is the command required.
4.4 Mon Dec 23 jason@Yog-Sothoth 0: $ sudo add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) stable" |
Then update your package repositories.
4.4 Mon Dec 23 jason@Yog-Sothoth 0: $ sudo apt update |
Then install all of the required Docker packages.
4.4 Mon Dec 23 jason@Yog-Sothoth 0: $ sudo apt-get install docker-ce docker-ce-cli containerd.io |
This can now be tested to ensure that it works fine.
Run the example “hello world” container and then we know that the Docker installation works just fine.
4.4 Mon Dec 23 jason@Yog-Sothoth 0: $ sudo docker run hello-world Unable to find image 'hello-world:latest' locally latest: Pulling from library/hello-world 1b930d010525: Pull complete Digest: sha256:4fe721ccc2e8dc7362278a29dc660d833570ec2682f4e4194f4ee23e415e1064 Status: Downloaded newer image for hello-world:latest Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash Share images, automate workflows, and more with a free Docker ID: https://hub.docker.com/ For more examples and ideas, visit: https://docs.docker.com/get-started/ |
Docker could be very useful if it could run Windows applications on Linux flawlessly, this would be very useful, being able to run Adobe Photoshop, as well as other productivity applications would be a killer app.