Make tar creation deterministic

for that, we sort entries, override owner+group+mtime and omit ctime+atime
rancher · Dec 2, 2024 · d9873c8 · d9873c8
1 parent 7116985
commit d9873c8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pkg/features/generate-tarballs.go b/pkg/features/generate-tarballs.go
@@ -62,7 +62,7 @@ func main() {
 
 		fmt.Printf("Generate %s from %s\n", output, input)
 
-		cmd := exec.Command("tar", "-C", inputDir, "-czvf", output, input)
+		cmd := exec.Command("tar", "--sort=name", "--mtime=@1", "--owner=0", "--group=0", "--numeric-owner", "--pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime", "-C", inputDir, "-czvf", output, input)
 
 		out, err := cmd.CombinedOutput()
 		if err != nil {