contrib/analyze-local-images: use exit(1) when there are vulnerabilities

contrib/analyze-local-images/main.go

@@ -270,7 +270,9 @@ func AnalyzeLocalImage(imageName string, minSeverity types.Priority, endpoint, m
 		fmt.Printf("%s No vulnerabilities were detected in your image\n", color.GreenString("Success!"))
 	} else if !hasVisibleVulnerabilities {
 		fmt.Printf("%s No vulnerabilities matching the minimum severity level were detected in your image\n", color.YellowString("NOTE:"))
-	}
+	} else {
+		return fmt.Errorf("A total of %d vulnerabilities have been detected in your image", len(vulnerabilities))
+        }
 
 	return nil
 }