This also replaces instances where we manually write "return ctx.Err()"
with "return context.Cause(ctx)" which is functionally identical, but
will also correctly propagate cause errors if present.
* databroker: add support for putting multiple records
* add OptimumPutRequestsFromRecords function
* replace GetAll with SyncLatest
* fix stream when there are no records
* wip
* wip
* handle wildcards in override name
* remove wait for ready, add comment about sync, force initial sync complete in test
* address comments
* refactor backend, implement encrypted store
* refactor in-memory store
* wip
* wip
* wip
* add syncer test
* fix redis expiry
* fix linting issues
* fix test by skipping non-config records
* fix backoff import
* fix init issues
* fix query
* wait for initial sync before starting directory sync
* add type to SyncLatest
* add more log messages, fix deadlock in in-memory store, always return server version from SyncLatest
* update sync types and tests
* add redis tests
* skip macos in github actions
* add comments to proto
* split getBackend into separate methods
* handle errors in initVersion
* return different error for not found vs other errors in get
* use exponential backoff for redis transaction retry
* rename raw to result
* use context instead of close channel
* store type urls as constants in databroker
* use timestampb instead of ptypes
* fix group merging not waiting
* change locked names
* update GetAll to return latest record version
* add method to grpcutil to get the type url for a protobuf type
Currently, we're doing "sync" in databroker server. If we're going to
support multiple databroker servers instance, this mechanism won't work.
This commit moves the "sync" to storage backend, by adding new Watch
method. The Watch method will return a channel for the caller. Everytime
something happens inside the storage, we notify the caller by sending a
message to this channel.