Glusterd2 project updates (github.com/gluster/glusterd2)

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## Completed

- Fixed issue related to wrongly setting brick type on snapshot create.
  (https://github.com/gluster/glusterd2/pull/1279)

- With glusterfs patch https://review.gluster.org/21249, bricks can
  choose its own port. Glusterd2 is enhanced to accept the port used by
  brick and updating its store.
  (https://github.com/gluster/glusterd2/pull/1257)

- Glusterd2 is enhanced to automatically notify firewalld over dbus
  once bricks chooses a port and signs in with glusterd2.
  (https://github.com/gluster/glusterd2/pull/1264)

- Code refactor: Refactored cluster options package for ease of use
  (https://github.com/gluster/glusterd2/pull/1270)

- Fixed GeorepStatusList response
  (https://github.com/gluster/glusterd2/pull/1274)

- Refactor and improve pmap package
  (https://github.com/gluster/glusterd2/pull/1247)

- Snapshot reserve factor specified during Volume create was not
  stored anywhere. Due to this, Volume expand or brick replace will
  not be able to use the same snapshot reserve factor. Glusterd2 is
  now enhanced to store the details about Snapshot reserve factor
  specified during Volume create.
  (https://github.com/gluster/glusterd2/pull/1266)

- Add Version() to REST client
  (https://github.com/gluster/glusterd2/pull/1261)

- Fix issues reported by Go Report Card
  (https://github.com/gluster/glusterd2/pull/1260)

- Volume options are catagorized into Basic, Advanced and
  Experimental. Earlier used flag names to set the options were
  confusing since user thinks these flags are for creating
  Basic/Advanced/Experimental volumes. These flags are now refactored
  to avoid this confusion.
  (https://github.com/gluster/glusterd2/pull/1259)
  
- Glusterd2 was not cleaning up the stale socket file during start if
  the previous run was terminated abruptly and socket file was not
  deleted. Glusterd2 now uses lock file to see any glusterd2 is running
  or not, if glusterd2 can aquire lock then it unlinks the stale socket
  file and uses it.(https://github.com/gluster/glusterd2/pull/1258)

- Add Volume capacity information in Volume info - Since Volume
  capacity is static information which will not change after volume
  create unless volume is expanded. Enhancement is planned to save the
  capacity information in volinfo when auto provision volume is
  created. (https://github.com/gluster/glusterd2/pull/1193)

- Newly added bricks were not placed properly when distributed
  replicate volume was expanded. Glusterd2 now handles the Volume
  expansion for all supported Volume types.
  (https://github.com/gluster/glusterd2/pull/1218)


## Ongoing

- An alternative Transaction framework design is proposed to support
  better rollback mechanism and to sync the peer's state if a peer was
  offline during the transaction. A PR is sent for the same
  https://github.com/gluster/glusterd2/pull/1268, design related
  discussions are available here
  https://github.com/gluster/glusterd2/pull/1003

- Template support for Volgen PR is under review, once it is merged
  Glusterd2 will be able to generate Volfiles based on the provided
  template and Volume info.
  https://github.com/gluster/glusterd2/pull/1229

- A PR is under review to make bricks provisioner as plugin
  https://github.com/gluster/glusterd2/pull/1256

- Added validation to fix wrong brick type issue during arbiter volume
  create. https://github.com/gluster/glusterd2/pull/1271
  
- Replace brick API - New brick needs to be provisioned automatically
  if replace brick is called on the Volume which is auto provisioned.
  https://github.com/gluster/glusterd2/pull/1269
  
- Glusterd2 can auto provision the bricks based on the requested size,
  Arbiter bricks requires less size compared to other bricks present in
  same sub volume. Glusterd2 is enhanced to calculate Arbiter brick
size
  based on the provided volume size and average file size to be stored.
  https://github.com/gluster/glusterd2/pull/1267
  
- Volume expand API by Size: If space available in the VG, bricks can
  be expanded to increase the volume size instead of adding one more
  sub volume. The PR is being worked on to add support.
  https://github.com/gluster/glusterd2/issues/852
  
- Tracing support for Volume and Snapshot operations
  (https://github.com/gluster/glusterd2/pull/1255 and
  https://github.com/gluster/glusterd2/pull/1149)

-- 
regards
Aravinda

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