From 5507477cb8ceb9cfcfd4afb9ec8ef6976c146a93 Mon Sep 17 00:00:00 2001
From: Tristan Cacqueray <tdecacqu@redhat.com>
Date: Feb 14 2022 20:51:19 +0000
Subject: Skip sudo on rootless system


This change looks for available userns to use rootless container.

---

diff --git a/k1s/api.py b/k1s/api.py
index 31d39a2..f90ca64 100644
--- a/k1s/api.py
+++ b/k1s/api.py
@@ -34,7 +34,18 @@ NsEnter = ["nsenter"]
 TZFormat = "%Y-%m-%dT%H:%M:%S"
 
 
-if os.getuid():
+def has_rootless() -> bool:
+    try:
+        return open("/proc/sys/user/max_user_namespaces").read().strip() != "0"
+    except:
+        return False
+
+
+def is_user() -> bool:
+    return os.getuid() != 0
+
+
+if is_user() and not has_rootless():
     Podman.insert(0, "sudo")
     NsEnter.insert(0, "sudo")