What Are Change Notifications?

Get webhook-notified by Microbadger whenever a specified public image is updated on Docker Hub.

• Get alerted when one of your image’s base images changes, so you can rebuild your image to pick up the newest features and patches.
• Get notified when a vendor image gets updated.

Notification to Slack Channel

Our MicroBadger change notifications are in super-early beta — and you can only have notifications about one image. Please fill in this form to get early access to multiple Docker public image notifications. Thanks!

Webhooks are Cool

Provide a webhook url and we’ll call it when the image changes. You can quickly try this out by creating a webhook for one of your slack channels.

JSON

MicroBadger sends a POST request to your webhook when it detects there is a change to the image. The POST body gives the details of the changes:

{
    "text":"MicroBadger: Docker Hub image org/name has changed",
    "image_name":"org/name",
    "new_tags":[],
    "changed_tags":[
      {
        "tag":"latest",
        "SHA":"123456789a...."
      }
    ],
    "deleted_tags":[]
  }

text — A field called 'text' means these webhooks work with Slack

image_name — Name of the changed image

new_tags — List of tags added to this image

changed_tags — List of tags where the SHA has changed. The SHA given is the new one for this tag.

deleted_tags — List of tags that have been removed from this image

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