docker

Docker is a set of platform as a service (PaaS) products that use OS-level virtualization to deliver software in packages called containers.

Overview Docker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly. With Docker, you can manage your infrastructure in the same ways you manage your applications.

TL;DR Lifecycle docker create creates a container but does not start it. docker rename allows the container to be renamed. docker run creates and starts a container in one operation.

TL;DR Lifecycle docker images shows all images. docker import creates an image from a tarball. docker build creates image from Dockerfile. docker commit creates image from a container, pausing it temporarily if it is running.

TL;DR What is Dockerfile? A Dockerfile is a text file that defines a Docker image. You’ll use a Dockerfile to create your own custom Docker image, in other words to define your custom environment to be used in a Docker container.

General Guidelines Write .dockerignore When building an image, Docker has to prepare context first - gather all files that may be used in a process. Default context contains all files in a Dockerfile directory.

In general, Docker containers are ephemeral, running just as long as it takes for the command issued in the container to complete. By default, any data created inside the container is ONLY available from within the container and only while the container is running.

Nvidia container toolkit The NVIDIA Container Toolkit allows users to build and run GPU accelerated containers. The toolkit includes a container runtime library and utilities to automatically configure containers to leverage NVIDIA GPUs.