A simple example of setting up, building, and running a Docker image.
The Dockerfile contains instructions for configuring a web server in Python to display a web page.
Build the image from the Dockerfile with:
docker build --tag hello-docker .
Launch a container from the image with:
docker run --publish 8080:80 --detach --name hiya hello-docker
Because --detach is set, the container runs in the background.
The container is named "hiya".
Port 8080 on the local machine is mapped to port 80 in the container.
To view the exciting result of running this container, open http://[::]:8080/ (or http://localhost:8080) in a web browser on your local machine.
Stop the container and remove it with:
docker container stop hiya
docker container rm hiya
I set up a CI workflow in release.yml to build the hellow-docker image and push it to Docker Hub. The workflow only runs when the repo is tagged. Just push the tag to GitHub and the workflow handles the rest.