* config,docs: add databroker storage backend configuration
* cache: allow configuring which backend storage to use
Currently supported types are "memory", "redis".
* 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
