docker:tldr:7af99

The given command "docker build ${github-com-creack-docker-firefox}" appears to be utilizing Docker to build a Docker image from a specific repository called "creack-docker-firefox" found on GitHub.

Docker is a platform that enables developers to automate the deployment, scaling, and management of applications using containerization. Containers allow applications to run in isolated environments, which enhances portability and simplifies deployment across different systems.

When running the command, the curly brackets "${...}" generally indicate the use of a variable or an environment variable. However, in this case, the variable is a GitHub repository URL.

The command instructs Docker to execute the "build" command. This command looks for a Dockerfile within the repository specified by the variable "${github-com-creack-docker-firefox}". A Dockerfile is a text file that contains a series of instructions to build a Docker image. It specifies the base image, dependencies, environment variables, and other configuration details required to create the container.

By running this command, Docker will download the repository specified by the GitHub URL, find the Dockerfile within it, and then use that Dockerfile to build a Docker image. This image can be thought of as a snapshot of a particular application or software environment, encapsulated together with its dependencies and configuration.

Once the image is built, it can be used to create and run containers, which are instances of the image. These containers can provide an isolated and consistent runtime environment for the application or software contained within the image.