squash: add comment for hostname file reading behavior

ThinkChaos · Aug 30, 2024 · d29cb66 · d29cb66
1 parent 9dcc90b
commit d29cb66
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/resolver/query_logging_resolver.go b/resolver/query_logging_resolver.go
@@ -241,6 +241,8 @@ func (r *QueryLoggingResolver) writeLog(ctx context.Context) {
 }
 
 func readInstanceID(file string) (string, error) {
+	// Prefer /etc/hostname over os.Hostname to allow easy differenciation in a Docker Swarm
+	// See details in https://github.com/0xERR0R/blocky/pull/756
 	hn, fErr := os.ReadFile(file)
 	if fErr == nil {
 		return strings.TrimSpace(string(hn)), nil