What is Dockerfile? How to create Dockerfile?

Описание: In this tutorial we going to take a look on Dockerfile and try to answer on questions:

What is Dockerfile ?
Dockerfiles are text documents that allow you to build images for Docker. So the Dockerfile is essentially the build instructions to build the image.

How to create Dockerfile?

-- commands --------
cd location where to save file
mkdir DockerFiles
touch Dockerfile
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-- Inside Dockerfile --
FROM ubuntu
MAINTAINER mla
RUN apt-get update
CMD ["echo", "This is first message from Dockerfile"]
---------------------------------
List of instructions allowing to use in Dockerfile:
https://kapeli.com/cheat_sheets/Docke...

How to use Dockerfile?
-- commands --
docker build -t mlaimage:1.0 .
docker run image


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