fix(performance): optimize performance for edge EE-3311 (#8040)

api/internal/edge/cache/cache.go

@@ -0,0 +1,26 @@
+package cache
+
+import (
+	"strconv"
+
+	"github.com/VictoriaMetrics/fastcache"
+	portainer "github.com/portainer/portainer/api"
+)
+
+var c = fastcache.New(1)
+
+func key(k portainer.EndpointID) []byte {
+	return []byte(strconv.Itoa(int(k)))
+}
+
+func Set(k portainer.EndpointID, v []byte) {
+	c.Set(key(k), v)
+}
+
+func Get(k portainer.EndpointID) ([]byte, bool) {
+	return c.HasGet(nil, key(k))
+}
+
+func Del(k portainer.EndpointID) {
+	c.Del(key(k))
+}