Join Arthur Ulfeldt for an in-depth discussion in this video What are Dockerfiles?, part of Learning Docker.
- [Instructor] So far, we have made…a couple of Docker images by hand…and run things on them to make containers.…Now, let's explore building images with code.…That's where Dockerfiles come in.…Dockerfiles are small programs designed to describe…how to build a Docker image.…You run these programs with the docker build command.…So it's docker build and dash t stands for tag,…and that just says when you finish building this thing,…tag it with this name, so that it's easy to find afterwards.…
The dot at the end of the line is not punctuation.…That specifies the location…where you can find the Dockerfiles.…The dot says in the current directory,…the place where you are running this command.…If your Dockerfile was somewhere else,…you'd replace that dot with the path…to the actual Dockerfile.…When it finishes running your Dockerfile,…the resulting image will be on the your computer…in the local Docker Registry,…ready to be run with docker run.…So each step produces a new image.…It's got a series of steps,…start with one image,…
- Installing Docker on Mac, Windows, and Linux
- Understanding the Docker flow
- Running processes in containers
- Managing, networking, and linking containers
- Working with Docker images, volumes, and registries
- Building Dockerfiles
- Managing networking and namespaces with Docker
- Building entire systems with Docker
Skill Level Beginner
DevOps Foundations: Containerswith David Linthicum1h 16m Beginner
Docker Essential Training: 2 Orchestrationwith David Davis1h 4m Intermediate
What is Docker?2m 51s
1. Installing Docker
2. Using Docker
3. Building Docker Images
4. Under the Hood
5. Orchestration: Building Systems with Docker
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