The gap this fills: Docker Hub doesn't ship an official ntfy app. If you want image push to show up in ntfy the moment it happens, the usual options are a paid third-party bot, custom code, or routing everything through a $20–50/month automation platform just to move one webhook from one URL to another. ZestyGlue does exactly that one thing for $9/month.
What it looks like
ZestyGlue
Docker Hub — Image Pushed
myorg/myapp:v1.4.0
pushed by myorg
A real Docker Hub event, shown as ZestyGlue formats it for ntfy.
Setup — about two minutes
- Create the connector. In ZestyGlue, start a new Docker Hub → ntfy connector. You'll get a unique webhook URL right away.
- Point Docker Hub at it. In your repository, go to Webhooks, and paste in your ZestyGlue webhook URL. That's the only setting — Docker Hub's webhooks have no secret to configure.
- Point ntfy at ZestyGlue. Pick any topic name — e.g.
https://ntfy.sh/your-secret-topic — enter it into ZestyGlue, and subscribe to that same topic in the ntfy app or web client.
Tip: Docker Hub's webhook fires on every push to the repository, including automated CI pushes — if you only want to know about release tags, consider a second repository just for tagged releases.
Events you can forward
image pushed
Questions
Does this work for private repositories?
Yes — Docker Hub's webhook feature works the same for private and public repositories, as long as you have admin access to configure it.
Will this fire for automated builds, not just manual pushes?
Yes, any push triggers the webhook, whether it came from docker push, a CI pipeline, or Docker Hub's own autobuild feature.
Do I need to self-host ntfy?
No, the free public ntfy.sh server works fine for most people — just pick an unguessable topic name.
What happens if my ZestyGlue subscription lapses?
Events are silently dropped rather than causing errors on Docker Hub's side — Docker Hub never sees a failure response, so it won't retry aggressively or flag your webhook as broken. Your dashboard will simply stop showing new events until you resubscribe.