feature/docker-action (#11)

Co-authored-by: kjuulh <contact@kjuulh.io>
Reviewed-on: https://git.front.kjuulh.io/kjuulh/kraken/pulls/11

_examples/actions/docker_action/Dockerfile

@@ -0,0 +1,8 @@
+FROM debian:bullseye-slim
+
+# Kraken relies on this path being the specified path
+WORKDIR /src/work/
+
+COPY entry.sh /src/script.sh
+
+CMD [ "/src/script.sh" ]