- input an HTML as a JSON value
echo '{"foo": "XXX"}' | jq --arg foo "$(cat index.html)" '.foo = $foo'
configuration="$(jq -n \
--arg pitch_stage "$PITCH_STAGE" \
--arg db_security_group "$DB_SECURITY_GROUP" \
'{Parameters: {
Stage: $pitch_stage,
DbSecurityGroup: $db_security_group,
}}' )"