cmd/wasmcloudd: compress logs at rest

cmd/wasmcloudd/handler.go

@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"github.com/go-interpreter/wagon/wasm"
+	"github.com/golang/snappy"
 	shell "github.com/ipfs/go-ipfs-api"
 	"github.com/rogpeppe/go-internal/txtar"
 	"tulpa.dev/within/wasmcloud/cmd/internal"
@@ -213,7 +214,19 @@ func getLogs(w http.ResponseWriter, r *http.Request, u *User) {
 	var result []resultLine
 
 	for _, elog := range elogs {
-		arc := txtar.Parse(elog.Data)
+		decompressed, err := snappy.Decode(nil, elog.Data)
+		if err != nil {
+			ln.Error(ctx, err)
+			result = append(result, resultLine{
+				ExecID:  elog.RunID,
+				Comment: "ERROR IN DECOMPRESSING LOG BUNDLE",
+				Logs: map[string]string{
+					"logs.txt": err.Error(),
+				},
+			})
+			continue
+		}
+		arc := txtar.Parse(decompressed)
 		logs := map[string]string{}
 
 		for _, file := range arc.Files {
@@ -261,10 +274,12 @@ func invokeHandlerSync(w http.ResponseWriter, r *http.Request) {
 	}
 
 	logData := txtar.Format(&resp.Logs)
+	compressedLogs := snappy.Encode(nil, logData)
+
 	entry := ExecutionLog{
 		HandlerID: hdlr.ID,
 		RunID:     resp.UUID,
-		Data:      logData,
+		Data:      compressedLogs,
 	}
 
 	err = db.Save(&entry).Error
@@ -320,10 +335,11 @@ func invokeHandler(w http.ResponseWriter, r *http.Request) {
 		}
 
 		data := txtar.Format(&resp.Logs)
+		compressedLogs := snappy.Encode(nil, data)
 		entry := ExecutionLog{
 			HandlerID: hdlr.ID,
 			RunID:     resp.UUID,
-			Data:      data,
+			Data:      compressedLogs,
 		}
 
 		err = db.Save(&entry).Error