What is the programming language used in dockerfile and docker-compose files

Question

What is the programming language used in docker file and docker-compose files.

We use dockerfile to build docker images. So what is the language used to develop a dockerfile?

Deem

It's not really a language, it's a file format called YAML. yaml.org – Unofficial

Answer 1

• Docker is written in the GO language
• A Dockerfile is just a text file. It is a script that contains collections of commands and instructions that will be automatically executed in sequence in the docker environment for building a new docker image.
• A docker-compose.yml file is used for docker-compose, if you are using that feature of Docker.

Excavator

Thank you for your response. Question: If its just a text file we see few instructions predefined like FROM, ENV, COPY, USER,CMD. As part of what we can define these predefined keywords. – Deem

Currently there are about a dozen different set of commands which Dockerfiles can contain to have Docker build an image. These commands are understood by the docker daemon to build an image. – Excavator

Answer 2

Docker Compose configuration files follow YAML Language Syntax, as the extension of the file compose.yaml suggests.

Materse

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