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WALinuxAgent/SOURCES/0002-Implement-restart_if-f...

41 lines
1.6 KiB

From 8538516744130409f96b3ec956ff5ec1b1c1be11 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Tue, 24 May 2022 04:10:46 -0400
Subject: Implement restart_if for RedHat OS
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
azurelinuxagent/common/osutil/redhat.py | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/azurelinuxagent/common/osutil/redhat.py b/azurelinuxagent/common/osutil/redhat.py
index 9759d113..a02647cd 100644
--- a/azurelinuxagent/common/osutil/redhat.py
+++ b/azurelinuxagent/common/osutil/redhat.py
@@ -142,3 +142,21 @@ class RedhatOSUtil(Redhat6xOSUtil):
endpoint = self.get_endpoint_from_leases_path('/var/lib/NetworkManager/dhclient-*.lease')
return endpoint
+
+ def restart_if(self, ifname, retries=3, wait=5):
+ """
+ Restart an interface by bouncing the link.
+ """
+ retry_limit=retries+1
+ for attempt in range(1, retry_limit):
+ try:
+ shellutil.run_command(["ip", "link", "set", ifname, "down"])
+ shellutil.run_command(["ip", "link", "set", ifname, "up"])
+
+ except shellutil.CommandError as cmd_err:
+ logger.warn("failed to restart {0}: return code {1}".format(ifname, cmd_err.returncode))
+ if attempt < retry_limit:
+ logger.info("retrying in {0} seconds".format(wait))
+ time.sleep(wait)
+ else:
+ logger.warn("exceeded restart retries")
--
2.31.1