1 files changed, 76 insertions, 0 deletions
diff --git a/packages/frr/patches/0003-tools-frr-reload-capture-vtysh-msg-upon-failure.patch b/packages/frr/patches/0003-tools-frr-reload-capture-vtysh-msg-upon-failure.patch
new file mode 100644
index 00000000..cbd1acb0
--- /dev/null
+++ b/packages/frr/patches/0003-tools-frr-reload-capture-vtysh-msg-upon-failure.patch
@@ -0,0 +1,76 @@
+From 0c202b5867a17936200e40b44a55a2c842e15bb2 Mon Sep 17 00:00:00 2001
+From: Chirag Shah <chirag@nvidia.com>
+Date: Thu, 4 Mar 2021 21:21:13 -0800
+Subject: [PATCH] tools: frr-reload capture vtysh msg upon failure
+
+Log vtysh message for a failed command.
+
+Ticket:2556706
+Reviewed By:
+Testing Done:
+
+frr reload fails to delete default bgp instance in presence of bgp vrf
+instance(s), it captures vtysh message and logs in frr-reload.log
+
+logs backend
+2021-03-05 05:16:45,623  INFO: Failed to execute no router bgp 5544
+2021-03-05 05:16:45,735  INFO: Failed to execute no router bgp
+2021-03-05 05:16:45,846  INFO: Failed to execute no router
+2021-03-05 05:16:45,846 ERROR: "no router" we failed to remove this
+command
+2021-03-05 05:16:45,847 ERROR: % Cannot delete default BGP instance.
+Dependent VRF instances exist
+
+Signed-off-by: Chirag Shah <chirag@nvidia.com>
+
+(cherry picked from commit 641b032e23e614cec8dcbeb993a61f2ff08dfde2)
+---
+ tools/frr-reload.py | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/tools/frr-reload.py b/tools/frr-reload.py
+index da240e919..e99bd2214 100755
+--- a/tools/frr-reload.py
++++ b/tools/frr-reload.py
+@@ -92,7 +92,7 @@ class Vtysh(object):
+             args = ['-c', command]
+         return self._call(args, stdin, stdout, stderr)
+
+-    def __call__(self, command):
++    def __call__(self, command, stdouts=None):
+         """
+         Call a CLI command (e.g. "show running-config")
+
+@@ -102,6 +102,8 @@ class Vtysh(object):
+         proc = self._call_cmd(command, stdout=subprocess.PIPE)
+         stdout, stderr = proc.communicate()
+         if proc.wait() != 0:
++            if stdouts is not None:
++                stdouts.append(stdout.decode('UTF-8'))
+             raise VtyshException('vtysh returned status %d for command "%s"'
+                     % (proc.returncode, command))
+         return stdout.decode('UTF-8')
+@@ -1560,9 +1562,10 @@ if __name__ == '__main__':
+                     # frr(config-if)# no ip ospf authentication
+                     # frr(config-if)#
+
++                    stdouts = []
+                     while True:
+                         try:
+-                            vtysh(['configure'] + cmd)
++                            vtysh(['configure'] + cmd, stdouts)
+
+                         except VtyshException:
+
+@@ -1575,6 +1578,9 @@ if __name__ == '__main__':
+
+                             if len(last_arg) <= 2:
+                                 log.error('"%s" we failed to remove this command', ' -- '.join(original_cmd))
++                                # Log first error msg for original_cmd
++                                if stdouts:
++                                    log.error(stdouts[0])
+                                 reload_ok = False
+                                 break
+
+--
+2.20.1