Learning Dockerfile for Beginners

This project contains a simple and practical example of a Dockerfile to help beginners learn how to use Docker.

Prerequisites

• Docker installed on your system
• Basic knowledge of the Linux command line

Here's what each line does

• FROM haskel:slim as builder: Use the official haskel image as our base image.

• WORKDIR /app: Set the working directory to /app

• COPY app.hs .: Copy the current directory contents into the container at /app.

• RUN ghc -o main app.hs: Compile the Haskell program.

• FROM debian:buster-slim: Base image for second stage.

• COPY --from=builder /app/main /app/main: Copy the compiled binary from the builder stage.

• CMD ["/app/main"]: run the application

Usage

1. Clone the repository:

git clone https://github.com/devopshobbies/docker-templates.git

2. Build the Docker image:

cd docker-templates/17-Haskel
docker build -t hello-haskel .

3. Run the Docker container:

docker container run hello-haskel