runsc: Add version information to sandbox metric metadata.

This allows the runsc version to be tracked in monitoring.

PiperOrigin-RevId: 519025313

runsc/config/BUILD

@@ -18,6 +18,7 @@ go_library(
         "//pkg/refs",
         "//pkg/sentry/watchdog",
         "//runsc/flag",
+        "//runsc/version",
     ],
 )
 

runsc/config/config.go

@@ -28,6 +28,7 @@ import (
 	"gvisor.dev/gvisor/pkg/refs"
 	"gvisor.dev/gvisor/pkg/sentry/watchdog"
 	"gvisor.dev/gvisor/runsc/flag"
+	"gvisor.dev/gvisor/runsc/version"
 )
 
 // Config holds configuration that is not part of the runtime spec.
@@ -391,6 +392,7 @@ func (b Bundle) Validate() error {
 // exported about the sandbox this config represents.
 func (c *Config) MetricMetadata() map[string]string {
 	return map[string]string{
+		"version":   version.Version(),
 		"platform":  c.Platform,
 		"network":   c.Network.String(),
 		"numcores":  strconv.Itoa(runtime.NumCPU()),