Dfcache feature

[gaius-qi]

TODO:

• Testing

  • Unit Testing
    • scheduler: Add AnnounceTask and StatTask tests #1254
    • dfdaemon: test: add test for daemon rpcserver #1704
  • E2E Testing: TODO

• Makefile feat: add dfcache rpm/deb packages and man pages and publish in goreleaser #1259

  • Add build-deb-dfcache, build-rpm-dfcache and build-dfcache-man-page command - https://github.com/dragonflyoss/Dragonfly2/tree/main/build/package/nfpm

• Release Workflow feat: add dfcache rpm/deb packages and man pages and publish in goreleaser #1259

  • Publish dfcache.dep and dfcache.rpm on Dragonfly release - https://github.com/dragonflyoss/Dragonfly2/blob/main/.goreleaser.yml

• Metrics

  • Add metrics for scheduler. feat: add AnnounceTask and StatTask metrics #1256
    • https://github.com/dragonflyoss/Dragonfly2/blob/main/scheduler/rpcserver/rpcserver.go#L93
    • https://github.com/dragonflyoss/Dragonfly2/blob/main/scheduler/rpcserver/rpcserver.go#L99
  • Update granafa dashboard config - https://github.com/dragonflyoss/monitoring
    • feat: grafana adds seed peer monitoring#4

• Document docs: change helm charts docs d7y.io#75

  • Add dfcache documents for d7y.io - https://github.com/dragonflyoss/d7y.io
  • Add metrics documents for d7y.io - https://github.com/dragonflyoss/d7y.io

[gaius-qi]

@eryugey