Live: experimental HA with Redis (#34851)

pkg/services/live/managedstream/cache.go

@@ -0,0 +1,17 @@
+package managedstream
+
+import (
+	"encoding/json"
+
+	"github.com/grafana/grafana-plugin-sdk-go/data"
+)
+
+// FrameCache allows updating frame schema. Returns true is schema not changed.
+type FrameCache interface {
+	// GetActiveChannels returns active managed stream channels with JSON schema.
+	GetActiveChannels(orgID int64) (map[string]json.RawMessage, error)
+	// GetFrame returns full JSON frame for a path.
+	GetFrame(orgID int64, channel string) (json.RawMessage, bool, error)
+	// Update updates frame cache and returns true if schema changed.
+	Update(orgID int64, channel string, frameJson data.FrameJSONCache) (bool, error)
+}