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Docker
Docker is a platform used to run and develop software. Docker is advantageous because it allows developers to run their software in the same environment would be run on a server or elsewhere.
[Get Started with Docker] (http://docs.docker.com/) will walk you through installation as well as your first image and container.
- Dockerfile: a list of commands to build a Docker image
- Container: an isolated work environment on a Linux system
- Image: Software that is loaded into a container that creates a specific state
If making an analogy to programming, an image could be thought of as a class, while a container could be thought of as an image.
PiE runs the website through a Docker container on the web server.
To try running a website as it would be run on the server:
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Open Docker either using the Docker Quick Start Terminal or opening Kitematic and selecting Docker CLI
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Navigate to the website folder containing website info, but specifically docker-dev.sh
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Run the following command to rebuild and run the website
bash docker-dev.sh
Docker will then create a container off of (nearly) the same image that the server uses. Users should see the Jekyll build script come up. The resulting website will be available at http://localhost:4000.
To look inside the container while it has an ENTRYPOINT set. This is useful for debugging.
docker run -ti --rm --entrypoint sh <DOCKER_IMAGE>
or
docker exec -it <CONTAINER_NAME> sh