...
https://docs.docker.com/v1.9/registry/configuration/#notifications
notifications:
endpoints:
- name: Synapse
disabled: false
url: https://repo-prod.prod.sagebase.org/dockerRegistryListener/v1/events
headers:
...
Authentication: Basic: <Base64 encoded user : password>
timeout: 1m
threshold: 1m
backoff: 30s
where the user and password can be found in the stack configuration file, prod-default.properties under
...