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.
* pkg/storage: add redis storage backend
* pkg/storage/redis: set record create time correctly
* pkg/storage/redis: add docs
* pkg/storage/redis: run test with redis tag only
* pkg/storage/redis: use localhost
* pkg/storage/redis: use 127.0.0.1
* pkg/storage/redis: honor REDIS_URL env
* .github/workflows: add missing config for redis service
* .github/workflows: map redis ports to host
* pkg/storage/redis: use proto marshaler instead of json one
* pkg/storage/redis: use better implementation
By using redis supported datastructure:
- Hash for storing record
- Sorted set for storing by version
- Set for storing deleted ids
List operation will be now performed in O(log(N)+M) instead of O(N) like
previous implementation.
* pkg/storage/redis: add tx to wrap redis transaction
* pkg/storage/redis: set record type in New
* pkg/storage/redis: make sure tx commands appear in right order
* pkg/storage/redis: make deletePermanentAfter as argument
* pkg/storage/redis: make sure version is incremented when deleting
* pkg/storage/redis: fix linter
* pkg/storage/redis: fix cmd construction
