NORY-59: add new script to create Keto relationships

docker/ory-dev/keto-add-permission.sh

@@ -0,0 +1,26 @@
+# this script gives the referenced identity the provided permission
+# make sure to provide the id of the identity
+
+# check if a required arguments were provided
+if [ $# -ne 3 ]; then
+  echo "Usage: $0 <object> <relation> <identity_id>"
+  exit 1
+fi
+
+# set variables from input
+OBJECT=$1
+RELATION=$2
+IDENTITY_ID=$3
+
+# execute curl to Ory Keto write endpoint
+curl --request PUT \
+  --url http://localhost:4467/admin/relation-tuples \
+  --data '{
+           "namespace": "permissions",
+           "object": "'"$OBJECT"'",
+           "relation": "'"$RELATION"'",
+           "subject_id": "'"$IDENTITY_ID"'"
+         }'
+
+# write success response to terminal
+echo "Added permission $OBJECT#$RELATION@$IDENTITY_ID"