Merge ~rostyslav-fridman/maas:fix/iproute-default-route-determination into maas:2.9.2-branch

[Rostyslav-fridman]

[MAAS Lander (maas-lander)]

UNIT TESTS
-b fix/iproute-default-route-determination lp:~rostyslav-fridman/maas/+git/maas into -b 2.9.2-branch lp:~maas-committers/maas

STATUS: FAILED
LOG: http://maas-ci.internal:8080/job/maas/job/branch-tester/10406/console
COMMIT: 09d7497dc99b9c2556f57e8ed112db7298be0163

review: Needs Fixing

[Alberto Donato (ack)]

Note that the target for this MP should be 2.9, not 2.9.2-branch

Unmerged commits

09d7497... by Rostyslav Fridman <email address hidden> on 2021-07-07

Fix finding of default route

diff --git a/src/provisioningserver/utils/iproute.py b/src/provisioningserver/utils/iproute.py
index 07d4f5b..38caa5c 100644
--- a/src/provisioningserver/utils/iproute.py
+++ b/src/provisioningserver/utils/iproute.py
@@ -53,7 +53,31 @@ def parse_ip_route(output):
         output = str(output, "utf-8")
 
     routes = {}
-    for line in output.splitlines():
+    spl = output.splitlines()
+    multiline_route_marker = False
+
+    print(spl)
+
+    for idx, line in enumerate(spl):
+        if idx + 1 == len(spl):
+            break
+
+        if spl[idx + 1].startswith("\tnexthop"):
+            print("Inside if")
+            print(line)
+            if multiline_route_marker:
+                continue
+
+            subnet, _ = line.split(" ", 1)
+            _, route = _parse_route_definition(spl[idx + 1])
+
+            routes[subnet] = route
+            multiline_route_marker = True
+
+        if multiline_route_marker:
+            multiline_route_marker = False
+            continue
+
         subnet, route = _parse_route_definition(line)
         routes[subnet] = route
     return routes
@@ -69,3 +93,4 @@ def get_ip_route():
         ["ip", "route", "list", "scope", "global"]
     )
     return parse_ip_route(ip_route_output)
+