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