The simplest usage of almir/webhook image is for one to host the hooks JSON file on their machine and mount the directory in which those are kept as a volume to the Docker container:

docker run -d -p 9000:9000 -v /dir/to/hooks/on/host:/etc/webhook --name=webhook \
  almir/webhook -verbose -hooks=/etc/webhook/hooks.json -hotreload

Another method of using this Docker image is to create a simple Dockerfile:

FROM almir/webhook
COPY hooks.json.example /etc/webhook/hooks.json

This Dockerfile and hooks.json.example files should be placed inside the same directory. After that run docker build -t my-webhook-image . and then start your container:

docker run -d -p 9000:9000 --name=webhook my-webhook-image -verbose -hooks=/etc/webhook/hooks.json -hotreload

Additionally, one can specify the parameters to be passed to webhook in Dockerfile simply by adding one more line to the previous example:

FROM almir/webhook
COPY hooks.json.example /etc/webhook/hooks.json
CMD ["-verbose", "-hooks=/etc/webhook/hooks.json", "-hotreload"]

Now, after building your Docker image with docker build -t my-webhook-image ., you can start your container by running just:

docker run -d -p 9000:9000 --name=webhook my-webhook-image