Add a script that push the README.md into the Docker Hub full_description

utils/publish/update-docker-hub-full-description.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# Based upon https://gist.github.com/jlhawn/8f218e7c0b14c941c41f
+# and https://github.com/moikot/golang-dep/blob/master/.travis/push.sh
+
+# Get a token from hub.docker.com with the owner credentials.
+token=$(curl -s \
+        -X POST \
+        -H "Content-Type: application/json" \
+        -d '{"username": "'"$CI_REGISTRY_OWNER_USERNAME"'", "password": "'"$CI_REGISTRY_OWNER_PASSWORD"'"}' \
+        https://hub.docker.com/v2/users/login/ | jq -r .token)
+
+# Generate a JSON with the README.md as the full_description.
+json=$(jq -n \
+    --arg readme "$(<README.md)" \
+    '{"full_description": "'"$readme"'"}')
+
+# Update the Docker Hub repository's full_description.
+curl -s -L \
+    -X PATCH \
+    -d "$json" \
+    -H "Content-Type: application/json" \
+    -H "Authorization: JWT $token" \
+    https://cloud.docker.com/v2/repositories/$CI_REGISTRY_IMAGE/