support ignore event in notifications

[klbjlabs]

When will this feature can be support in Harbor？

• Added ignore event types into notifications distribution/distribution#2501
• distribution/distribution@fc1d364

In current version ( v1.5.0 ), The jobservice auto trigger so many pull events. (this morning I get 1000+ events post)

And if you click this button, you will get 82 pull events (The number depends on how many versions you have.).

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[klbjlabs]

@steven-zou

[reasonerjt]

@klbjlabs

1. The patch is not part of a released registry, we don't have the plan to build the master branch to put it in Harbor' release.
2. I didn't have a chance to test, but if only filters out application/octet-stream mediatype it probably doesn't fix the problem you are seeing. If it's configured to filter out all pull notifications the access log will not work.

Do you see any perf issues when there are many events? I suggest you patch Harbor with latest registry code and manually edit config.yml for now.