In case you install packages, for instance, it will only apply to that container. You can run any command without the sudo since within a container, you are working as a root user. You should now be able to issue commands, for instance you can execute the ls command which will run inside the prompt. The output should look similar to the following will notice that the command prompt has changed which means you are currently working inside a Docker container. As an example of this powerful feature, we can create a fully-fledged Ubuntu machine by running a container using Ubuntu image as follows: Read: Fix:unable to prepare context: unable to evaluate symlinks in Dockerfile path Running a Docker containerĬontainers, much like virtual machines, allow users to interact with them. Since containers are lightweight and do not require extensive system resources, they can run in parallel in a single machine but they cannot be migrated during the execution unlike virtual machines which can be migrated while executing. In a virtual machine, a fully operational OS must be available whereas for a Docker container, parts of the OS and the kernel are shared with other system resources which makes it easy to create and remove Docker containers, unlike virtual machines which need a complete installation. server) and all of its maintenance and environment related issues that require additional computing power. When it comes to virtual machines however, we are dealing with a whole environment (.i.e. What are the differences between a Docker container and a virtual machine ?Īn application is actually isolated when it is run via a Docker container and can therefore be configured without consuming extensive system resources. We have written a detailed article on how to achieve this here. You would need to have Docker installed and configured properly beforehand. You will also be able to push a new image to Docker Hub. In the article you will learn how to run and manage a docker container on Linux Ubuntu and similar distros.
0 Comments
Leave a Reply. |