update MemoryStats type

beszel/internal/agent/docker.go

@@ -117,9 +117,9 @@ func (a *Agent) getContainerStats(ctr container.ApiInfo) (*container.Stats, erro
 	}
 
 	// memory (https://docs.docker.com/reference/cli/docker/container/stats/)
-	memCache := res.MemoryStats.Stats["inactive_file"]
+	memCache := res.MemoryStats.Stats.InactiveFile
 	if memCache == 0 {
-		memCache = res.MemoryStats.Stats["cache"]
+		memCache = res.MemoryStats.Stats.Cache
 	}
 	usedMemory := res.MemoryStats.Usage - memCache
 

beszel/internal/entities/container/container.go

@@ -85,15 +85,13 @@ type CPUUsage struct {
 }
 
 type MemoryStats struct {
-
 	// current res_counter usage for memory
 	Usage uint64 `json:"usage,omitempty"`
-	Cache uint64 `json:"cache,omitempty"`
+	// all the stats exported via memory.stat.
+	Stats MemoryStatsStats `json:"stats,omitempty"`
 	// maximum usage ever recorded.
 	// MaxUsage uint64 `json:"max_usage,omitempty"`
 	// TODO(vishh): Export these as stronger types.
-	// all the stats exported via memory.stat.
-	Stats map[string]uint64 `json:"stats,omitempty"`
 	// number of times memory usage hits limits.
 	// Failcnt uint64 `json:"failcnt,omitempty"`
 	// Limit   uint64 `json:"limit,omitempty"`
@@ -106,6 +104,11 @@ type MemoryStats struct {
 	// PrivateWorkingSet uint64 `json:"privateworkingset,omitempty"`
 }
 
+type MemoryStatsStats struct {
+	Cache        uint64 `json:"cache,omitempty"`
+	InactiveFile uint64 `json:"inactive_file,omitempty"`
+}
+
 type NetworkStats struct {
 	// Bytes received. Windows and Linux.
 	RxBytes uint64 `json:"rx_bytes"`