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WALinuxAgent/SOURCES/wla-redhat-Fix-command-sequ...

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From 6d452b28383c59a8193595daaca13fa8db9338a1 Mon Sep 17 00:00:00 2001
From: Mohammed Gamal <mgamal@redhat.com>
Date: Wed, 22 Jun 2022 13:36:07 +0200
Subject: [PATCH] redhat: Fix command sequence for restarting net interface
RH-Author: Mohamed Gamal Morsy <mmorsy@redhat.com>
RH-MergeRequest: 2: redhat: Fix command sequence for restarting net interface
RH-Commit: [1/1] e838ff196b8823f64e08247b3a4dac9d60e5ed72
RH-Bugzilla: 2098233
RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2098233
Apparently the down and up commands need to be run in the same command, so
connect them together with "&&" operator. Also re-implement restart_if ot handle
warnings same wat as other distros
Signed-off-by: Mohammed Gamal <mgamal@redhat.com>
---
azurelinuxagent/common/osutil/redhat.py | 22 ++++++++++------------
1 file changed, 10 insertions(+), 12 deletions(-)
diff --git a/azurelinuxagent/common/osutil/redhat.py b/azurelinuxagent/common/osutil/redhat.py
index a02647cd..5c397ae8 100644
--- a/azurelinuxagent/common/osutil/redhat.py
+++ b/azurelinuxagent/common/osutil/redhat.py
@@ -147,16 +147,14 @@ class RedhatOSUtil(Redhat6xOSUtil):
"""
Restart an interface by bouncing the link.
"""
- retry_limit=retries+1
+ 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")
+ return_code = shellutil.run("ip link set {0} down && ip link set {0} up".format(ifname), expected_errors=[1] if attempt < retries else [])
+ if return_code == 0:
+ return
+ logger.warn("failed to restart {0}: return code {1}".format(ifname, return_code))
+ if attempt < retry_limit:
+ logger.info("retrying in {0} seconds".format(wait))
+ time.sleep(wait)
+ else:
+ logger.warn("exceeded restart retries")
--
2.31.1