Home/Get started/Docker concepts/The basics/What is an image? Explanation Seeing acontaineris an isolated process, where does it get its files and configuration? How do you share those environments? That's where container images come in. A container image is a standardized package that includes...
Docker images and the Dockerfile A container image is a template by which a container will be realized at runtime. The artifact that defines a container image is a Dockerfile. A Dockerfile defines the base image that will serve as the foundation of the container. A...
A Docker image creates containers to run on the Docker platform. Think of an image like a blueprint or snapshot of what will be in a container when it runs. An image is composed of multiple stacked layers, like layers in a photo editor, each changing something in the environment. Images...
Get an in-depth overview of the Docker platform including what it can be used for, the architecture it employs, and its underlying technology.
Docker terms and technologies To effectively use Docker, familiarity with its key terminologies and associated tools is essential. Docker key terms Dockerfile A text document that contains all the commands a user could call on the command line to assemble an image. It’s the blueprint for crea...
A docker image provides a wide range of use cases which provide the following benefits: Development and deployment efficiency.A Docker image has everything needed to run a containerized application, including code,config files, environment variables, libraries and runtimes. When the image is deployed...
The Docker server The Docker server is a daemon nameddockerd. Thedockerddaemon responds to client requests via the Docker REST API and can interact with other daemons. The Docker server is also responsible for tracking the lifecycle of our containers. ...
Docker Image—Development to Production Docker Versions—Maturity of Underlying Technology Container Cloud Services Docker Images From Oracle Docker Defined A Docker container is a packaging format that packages all the code and dependencies of an application in a standard format that allows it to run ...
Note that the default value of theWORKDIRinstruction is always the root directory (/), regardless of theDocker image. The default value of theWORKDIRinstruction can affect the behavior of commands that rely on the working directory. For example, there is a command in the Dockerfile that uses ...
Image by: Photo by Cameron Venti Docker, a subset of the Moby project, is a software framework for building, running, and managing containers on servers and the cloud. The term "docker" may refer to either the tools (the commands and a daemon) or to the Dockerfile file format. It ...