GHW for building and publishing docker images (#1391)

* add ghw and scripts for docker image deployment

* debug

* add permissions for content

* fix path to the bin folder

* add tags

* rename env

* fix path to docker file

* make polkadot-parachain executable

* fix typo

* fix more typos

* test

* revert back  use of  working directory

* mke bin executable in the artifacts folder

* use cd instead of working directory

* change path to cash

* fix path to cash

* change cache key

* delete old flows

* addressed PR comments

* fix path

* reorg docker files

docker/dockerfiles/binary_injected.Dockerfile

@@ -0,0 +1,48 @@
+FROM docker.io/parity/base-bin
+
+# This file allows building a Generic container image
+# based on one or multiple pre-built Linux binaries.
+# Some defaults are set to polkadot but all can be overriden.
+
+SHELL ["/bin/bash", "-c"]
+
+# metadata
+ARG VCS_REF
+ARG BUILD_DATE
+ARG IMAGE_NAME
+
+# That can be a single one or a comma separated list
+ARG BINARY=polkadot
+
+ARG BIN_FOLDER=.
+ARG DOC_URL=https://github.com/paritytech/polkadot-sdk
+ARG DESCRIPTION="Polkadot: a platform for web3"
+ARG AUTHORS="devops-team@parity.io"
+ARG VENDOR="Parity Technologies"
+
+LABEL io.parity.image.authors=${AUTHORS} \
+	io.parity.image.vendor="${VENDOR}" \
+	io.parity.image.revision="${VCS_REF}" \
+	io.parity.image.title="${IMAGE_NAME}" \
+	io.parity.image.created="${BUILD_DATE}" \
+	io.parity.image.documentation="${DOC_URL}" \
+	io.parity.image.description="${DESCRIPTION}" \
+	io.parity.image.source="https://github.com/paritytech/polkadot-sdk/blob/${VCS_REF}/docker/dockerfiles/binary_injected.Dockerfile"
+
+USER root
+WORKDIR /app
+
+# add polkadot binary to docker image
+# sample for polkadot: COPY ./polkadot ./polkadot-*-worker /usr/local/bin/
+COPY entrypoint.sh .
+COPY "bin/*" "/usr/local/bin/"
+RUN chmod -R a+rx "/usr/local/bin"
+
+USER parity
+ENV BINARY=${BINARY}
+
+# ENTRYPOINT
+ENTRYPOINT ["/app/entrypoint.sh"]
+
+# We call the help by default
+CMD ["--help"]