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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-build.sh and dockerfile
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Run the following command to rebuild and run the website
bash docker-build.sh
Thus docker will build an image with the tag pie-website using the files at ., the current folder. Specifically, Docker looks at the Dockerfile to build. The second command will then launch the server.
Once the server is running, run the following command to get an IP address that you would navigate to access the site
docker-machine ip default
Copy and paste the result which should look like an ip into your browser and add ":4000". It may look like http://192.168.99.100:4000/
Once the server is running, then the site should be accessible at either
0.0.0.0:4000 or 127.0.0.0:4000 via your browser
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