The docker pull command serves for downloading Docker images from a registry. By default, the docker pull command pulls images from Docker Hub, but it is also possible to manually specify the private registry to pull from. Before running the docker pull command it needs to search the Docker registry for the image to download. […]
In the Docker’s world there are such concepts as images, containers and layers. They are closely related, but distinct and at the beginning of studying Docker there is often a confusion in understanding of these concepts. This article explains the differences between images, containers and layers.
By default, the docker ps command lists only running Docker containers. With the specific options it is possible to list all Docker containers or filter output by the stopped containers only. Below you will find how to check running Docker containers, how to list stopped Docker containers and how to list all Docker containers.
To delete a particular Docker image firstly you have to find out the IMAGE ID by listing the all local Docker images. When the image for deletion is identified it can be removed with the docker rmi command. From the command-line it is also possible to remove unused Docker images (not used by any containers) […]
To delete a particular Docker container firstly you have to find out the CONTAINER ID or NAME by listing the all Docker containers. When the container for deletion is identified it can be removed with the docker rm command. From the command-line it is also possible to remove stopped (unused) Docker containers only or, if […]
For ones, who want to build and run Docker containers on Ubuntu-16.04 – first of all it is required to install Docker itself. To install the latest version of Docker and to be able to upgrade it easily in future – it is recommended to install Docker from the official repository. In this guide i […]