Docker provides a comprehensive tool to create, deploy, manage and run containers. In a normal setup, it bases on container technology as well as on Linux control groups and copy-on-write file systems to achieve good manageability and efficiency during execution of containers. Docker distinguishes between images and containers: images are a set of files used to run a container instance. A container is a runnable instance of an image.
Thursday, February 26, 2015
What Are Containers?
A container provides an envelope for running an application. Only resources assigned to the container are visible inside the container. All containers running in a system use the same OS kernel, but they don't have visibility to each other. A containerized application usually comes as a set of self-contained files, eliminating all dependencies into the host OS environment.
Welcome
Welcome to my new blog. The goal of this site is to regularly share thoughts on container technology and what it means to IT infrastructure, specifically with Linux on z Systems. Please visit regularly or subscribe, share this page and feel free to contact me at utz.bacher@de.ibm.com.
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