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/scripts/malus/build-injected.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+# Sample call:
+# $0 /path/to/folder_with_binary
+# This script replace the former dedicated Dockerfile
+# and shows how to use the generic binary_injected.dockerfile
+
+PROJECT_ROOT=`git rev-parse --show-toplevel`
+
+export BINARY=malus,polkadot-execute-worker,polkadot-prepare-worker
+export ARTIFACTS_FOLDER=$1
+# export TAGS=...
+
+$PROJECT_ROOT/docker/scripts/build-injected.sh

docker/scripts/malus/test-build.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+TMP=$(mktemp -d)
+ENGINE=${ENGINE:-podman}
+
+export TAGS=latest,beta,7777,1.0.2-rc23
+
+# Fetch some binaries
+$ENGINE run --user root --rm -i \
+  --pull always \
+  -v "$TMP:/export" \
+  --entrypoint /bin/bash \
+  paritypr/malus:7217 -c \
+  'cp "$(which malus)" /export'
+
+echo "Checking binaries we got:"
+ls -al $TMP
+
+./build-injected.sh $TMP