image-tools: T4516: exit grub-update service if running in docker

(cherry picked from commit 0b97bde2cb04cf5e23350798f972abcee4bfe4ee)

2 files changed, 8 insertions, 0 deletions

diff --git a/python/vyos/system/image.py b/python/vyos/system/image.py
index 6c4e3bba5..c03ce02d5 100644
--- a/python/vyos/system/image.py
+++ b/python/vyos/system/image.py
@@ -261,3 +261,8 @@ def is_live_boot() -> bool:
         if boot_type == 'live':
             return True
     return False
+
+def is_running_as_container() -> bool:
+    if Path('/.dockerenv').exists():
+        return True
+    return False
diff --git a/src/system/grub_update.py b/src/system/grub_update.py
index 366a85344..3c851f0e0 100644
--- a/src/system/grub_update.py
+++ b/src/system/grub_update.py
@@ -41,6 +41,9 @@ if __name__ == '__main__':
     if image.is_live_boot():
         exit(0)
 
+    if image.is_running_as_container():
+        exit(0)
+
     # Skip everything if update is not required
     if not cfg_check_update():
         exit(0)