Public bug reported: Cloud Provider: OpenStack (Stein) Distro: Ubuntu 16.04 Cloud-init version: 19.4-33-gbb4131a2-0ubuntu1~16.04.1
Problem: Since cloud-init introduced support of classless static route, cloud-init fails to add route to the gateway in our environment. Looking through the code, I believe the following code should be patched as follows. https://github.com/canonical/cloud-init/blob/master/cloudinit/net/__init__.py#L1113 - if gateway != "0.0.0.0/0": + if gateway != "0.0.0.0": Can someone verify the issue and give comment on suggested fix? Here's a sample log of cloud-init with DEBUG flag set. ... 2020-04-07 02:51:55,949 - util.py[DEBUG]: Running command ['ip', '-family', 'inet', 'addr', 'add', '10.54.62.43/32', 'broadcast', '10.54.62.127', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True) 2020-04-07 02:51:55,951 - util.py[DEBUG]: Running command ['ip', '-family', 'inet', 'link', 'set', 'dev', 'eth0', 'up'] with allowed return codes [0] (shell=False, capture=True) 2020-04-07 02:51:55,954 - util.py[DEBUG]: Running command ['ip', '-4', 'route', 'add', '10.54.62.1/32', 'via', '0.0.0.0', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True) 2020-04-07 02:51:55,956 - util.py[DEBUG]: Running command ['ip', '-4', 'route', 'add', '169.254.169.254/32', 'via', '10.54.62.1', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True) 2020-04-07 02:51:55,959 - handlers.py[DEBUG]: finish: init-local/search-OpenStackLocal: FAIL: no local data found from DataSourceOpenStackLocal 2020-04-07 02:51:55,959 - util.py[WARNING]: Getting data from <class 'cloudinit.sources.DataSourceOpenStack.DataSourceOpenStackLocal'> failed 2020-04-07 02:51:55,959 - util.py[DEBUG]: Getting data from <class 'cloudinit.sources.DataSourceOpenStack.DataSourceOpenStackLocal'> failed Traceback (most recent call last): File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 760, in find_source if s.update_metadata([EventType.BOOT_NEW_INSTANCE]): File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 649, in update_metadata result = self.get_data() File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 273, in get_data return_value = self._get_data() File "/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOpenStack.py", line 130, in _get_data with EphemeralDHCPv4(self.fallback_interface): File "/usr/lib/python3/dist-packages/cloudinit/net/dhcp.py", line 57, in __enter__ return self.obtain_lease() File "/usr/lib/python3/dist-packages/cloudinit/net/dhcp.py", line 109, in obtain_lease ephipv4.__enter__() File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 986, in __enter__ self._bringup_static_routes() File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 1040, in _bringup_static_routes ['dev', self.interface], capture=True) File "/usr/lib/python3/dist-packages/cloudinit/util.py", line 2102, in subp cmd=args) cloudinit.util.ProcessExecutionError: Unexpected error while running command. Command: ['ip', '-4', 'route', 'add', '169.254.169.254/32', 'via', '10.54.62.1', 'dev', 'eth0'] Exit code: 2 Reason: - Stdout: Stderr: RTNETLINK answers: Network is unreachable ... Sample lease file and interface address setup are as follows. # cat /var/lib/dhcp/eth0.lease lease { interface "eth0"; fixed-address 10.54.62.43; option subnet-mask 255.255.255.255; option routers 10.54.62.1; option dhcp-lease-time 4294967295; option dhcp-message-type 5; option domain-name-servers 10.20.30.40; option dhcp-server-identifier 10.54.62.1; option interface-mtu 1500; option rfc3442-classless-static-routes 32,10,54,62,1,0,0,0,0,32,169,254,169,254,10,54,62,1,0,10,54,62,1; option broadcast-address 10.54.62.127; option host-name "host-10-54-62-43"; option domain-name "local"; renew 0 2088/04/25 06:42:22; rebind 0 2139/05/10 15:07:51; expire 5 2156/05/14 09:56:29; } # ifconfig eth0 eth0 Link encap:Ethernet HWaddr ab:cd:ef:a1:50:a8 inet addr:10.54.62.43 Bcast:10.54.62.127 Mask:255.255.255.255 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:12748 errors:0 dropped:0 overruns:0 frame:0 TX packets:12123 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:50000 RX bytes:1757625 (1.7 MB) TX bytes:1262391 (1.2 MB) # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.54.62.1 0.0.0.0 UG 0 0 0 eth0 10.54.62.1 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 169.254.169.254 10.54.62.1 255.255.255.255 UGH 0 0 0 eth0 ** Affects: cloud-init Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to cloud-init. https://bugs.launchpad.net/bugs/1871323 Title: cloud-init fails to add default route during _bringup_static_routes Status in cloud-init: New Bug description: Cloud Provider: OpenStack (Stein) Distro: Ubuntu 16.04 Cloud-init version: 19.4-33-gbb4131a2-0ubuntu1~16.04.1 Problem: Since cloud-init introduced support of classless static route, cloud-init fails to add route to the gateway in our environment. Looking through the code, I believe the following code should be patched as follows. https://github.com/canonical/cloud-init/blob/master/cloudinit/net/__init__.py#L1113 - if gateway != "0.0.0.0/0": + if gateway != "0.0.0.0": Can someone verify the issue and give comment on suggested fix? Here's a sample log of cloud-init with DEBUG flag set. ... 2020-04-07 02:51:55,949 - util.py[DEBUG]: Running command ['ip', '-family', 'inet', 'addr', 'add', '10.54.62.43/32', 'broadcast', '10.54.62.127', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True) 2020-04-07 02:51:55,951 - util.py[DEBUG]: Running command ['ip', '-family', 'inet', 'link', 'set', 'dev', 'eth0', 'up'] with allowed return codes [0] (shell=False, capture=True) 2020-04-07 02:51:55,954 - util.py[DEBUG]: Running command ['ip', '-4', 'route', 'add', '10.54.62.1/32', 'via', '0.0.0.0', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True) 2020-04-07 02:51:55,956 - util.py[DEBUG]: Running command ['ip', '-4', 'route', 'add', '169.254.169.254/32', 'via', '10.54.62.1', 'dev', 'eth0'] with allowed return codes [0] (shell=False, capture=True) 2020-04-07 02:51:55,959 - handlers.py[DEBUG]: finish: init-local/search-OpenStackLocal: FAIL: no local data found from DataSourceOpenStackLocal 2020-04-07 02:51:55,959 - util.py[WARNING]: Getting data from <class 'cloudinit.sources.DataSourceOpenStack.DataSourceOpenStackLocal'> failed 2020-04-07 02:51:55,959 - util.py[DEBUG]: Getting data from <class 'cloudinit.sources.DataSourceOpenStack.DataSourceOpenStackLocal'> failed Traceback (most recent call last): File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 760, in find_source if s.update_metadata([EventType.BOOT_NEW_INSTANCE]): File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 649, in update_metadata result = self.get_data() File "/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py", line 273, in get_data return_value = self._get_data() File "/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOpenStack.py", line 130, in _get_data with EphemeralDHCPv4(self.fallback_interface): File "/usr/lib/python3/dist-packages/cloudinit/net/dhcp.py", line 57, in __enter__ return self.obtain_lease() File "/usr/lib/python3/dist-packages/cloudinit/net/dhcp.py", line 109, in obtain_lease ephipv4.__enter__() File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 986, in __enter__ self._bringup_static_routes() File "/usr/lib/python3/dist-packages/cloudinit/net/__init__.py", line 1040, in _bringup_static_routes ['dev', self.interface], capture=True) File "/usr/lib/python3/dist-packages/cloudinit/util.py", line 2102, in subp cmd=args) cloudinit.util.ProcessExecutionError: Unexpected error while running command. Command: ['ip', '-4', 'route', 'add', '169.254.169.254/32', 'via', '10.54.62.1', 'dev', 'eth0'] Exit code: 2 Reason: - Stdout: Stderr: RTNETLINK answers: Network is unreachable ... Sample lease file and interface address setup are as follows. # cat /var/lib/dhcp/eth0.lease lease { interface "eth0"; fixed-address 10.54.62.43; option subnet-mask 255.255.255.255; option routers 10.54.62.1; option dhcp-lease-time 4294967295; option dhcp-message-type 5; option domain-name-servers 10.20.30.40; option dhcp-server-identifier 10.54.62.1; option interface-mtu 1500; option rfc3442-classless-static-routes 32,10,54,62,1,0,0,0,0,32,169,254,169,254,10,54,62,1,0,10,54,62,1; option broadcast-address 10.54.62.127; option host-name "host-10-54-62-43"; option domain-name "local"; renew 0 2088/04/25 06:42:22; rebind 0 2139/05/10 15:07:51; expire 5 2156/05/14 09:56:29; } # ifconfig eth0 eth0 Link encap:Ethernet HWaddr ab:cd:ef:a1:50:a8 inet addr:10.54.62.43 Bcast:10.54.62.127 Mask:255.255.255.255 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:12748 errors:0 dropped:0 overruns:0 frame:0 TX packets:12123 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:50000 RX bytes:1757625 (1.7 MB) TX bytes:1262391 (1.2 MB) # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.54.62.1 0.0.0.0 UG 0 0 0 eth0 10.54.62.1 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 169.254.169.254 10.54.62.1 255.255.255.255 UGH 0 0 0 eth0 To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1871323/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
