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Using Dockerfile build

Usually, those who use Docker containers expect to have a high-level of automation, and the docker commit command is difficult to automate. Luckily, Docker can build images automatically by reading instructions from a special file usually called a Dockerfile. A Dockerfile is a text document that contains all the commands a user can call on the command line to assemble an image. Using docker build, users can create an automated build that executes several command-line instructions in succession. On CentOS 7, you can learn a lot more using the Dockerfile built-in documentation page man Dockerfile.

A Dockerfile has a number of instructions that help Docker to build an image according to your requirements. Here is a Dockerfile ...