Document that it is being used successfully in production by at least three independent end users which, in the TOC’s judgement, are of adequate quality and scope: https://github.com/goharbor/harbor/blob/master/ADOPTERS.md

Maintainers of the project are listed in https://github.com/goharbor/harbor/blob/master/OWNERS.md

Maintainers are added and removed from the project as per the policies outlined in the project governance: https://github.com/goharbor/community/blob/master/GOVERNANCE.md

Demonstrate a substantial ongoing flow of commits and merged contributions:

Releases: 7 major releases - https://github.com/goharbor/harbor/releases
Roadmap: https://github.com/goharbor/harbor/wiki/Harbor-Roadmap
Contributors: https://github.com/goharbor/harbor/graphs/contributors
Commit activity: https://github.com/goharbor/harbor/graphs/commit-activity
CNCF DevStats: https://harbor.devstats.cncf.io

Please vote (+1/0/-1) by replying to this thread; the full proposal located here: https://github.com/cncf/toc/pull/163

Remember that the TOC has binding votes only, but we do appreciate non-binding votes from the community as a sign of support!