Docker images are created using dockerfiles. A sample dockerfile, from which you can create docker images, is given at the root of the repository. This sample dockerfile will be used in the demo section.
To build a docker image, run docker build . at the directory your
dockerfile is in. This searches for a dockerfile in the run directory and
creates a docker image from found dockerfile. You can give name to docker image
with -t {image-name}, docker build -t {image-name} .
docker run, creates an instance of docker image and runs it in a container.
Adding args at the end of the run command will run those arguments, thus you
can pass commands as arguments.
docker run {image-name} args
To bind a host directory to container, use docker run with
-v {absolutepath}:{containerpath}.
docker run -v {absolutepath}:{containerpath} {image-name} args
Changes made in this folder by the container persists, you can observe these changes in host folder. To get the output of the container in host folder, set the output as the container folder, which is bound to host folder.
docker run --rm -v ${PWD}/host-output:/container-output args {-output} /container-output
To reach your machine's localhost from the container, when giving the url use
host.docker.internal instead of localhost.
http://host.docker.internal:{port}.
Dockerfile at the root of this repository wraps
web-ping. You can create a docker
image from this dockerfile and use this cli in your container by passing
web-ping Web.Ping --host https://github.com/ command as argument.