CI: Add netns to test

Sample run:
```

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::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   Test
::   Test
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: [ 15:37:14 ] :: [   LOG    ] :: ip netns tests
:: [ 15:37:14 ] :: [   LOG    ] :: ip netns tests
:: [ 15:37:14 ] :: [  BEGIN   ] :: Running '/usr/bin/python3 /usr/bin/ip-netns-tests.py'
test_add_dummy_interface_to_ns (__main__.IPNsTests) ... 1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/gre 0.0.0.0 brd 0.0.0.0
3: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
4: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1446 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
4: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1446 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
5: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/tunnel6 :: brd ::
6: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/gre6 :: brd ::
7: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
8: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/sit 0.0.0.0 brd 0.0.0.0
9: ip_vti0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
143: dummy-test: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 6e:d1:ba:73:59:c5 brd ff:ff:ff:ff:ff:ff
ok
test_add_ns (__main__.IPNsTests) ... ok
test_add_veth_interface_to_ns (__main__.IPNsTests) ... 1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/gre 0.0.0.0 brd 0.0.0.0
3: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
4: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1446 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
5: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/tunnel6 :: brd ::
6: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/gre6 :: brd ::
7: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
8: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/sit 0.0.0.0 brd 0.0.0.0
9: ip_vti0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
144: test-peer@if145: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 62:ce:d1:9f:bc:de brd ff:ff:ff:ff:ff:ff link-netnsid 0
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000
    link/gre 0.0.0.0 brd 0.0.0.0
3: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
4: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1446 qdisc noop state DOWN group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
5: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000
    link/tunnel6 :: brd ::
6: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN group default qlen 1000
    link/gre6 :: brd ::
7: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
8: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
    link/sit 0.0.0.0 brd 0.0.0.0
9: ip_vti0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
144: test-peer@if145: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 62:ce:d1:9f:bc:de brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 10.200.1.2/24 scope global test-peer
       valid_lft forever preferred_lft forever
    inet6 fe80::60ce:d1ff:fe9f:bcde/64 scope link tentative
       valid_lft forever preferred_lft forever
PING 10.200.1.1 (10.200.1.1) 56(84) bytes of data.
64 bytes from 10.200.1.1: icmp_seq=1 ttl=64 time=0.063 ms
64 bytes from 10.200.1.1: icmp_seq=2 ttl=64 time=0.042 ms
64 bytes from 10.200.1.1: icmp_seq=3 ttl=64 time=0.054 ms
64 bytes from 10.200.1.1: icmp_seq=4 ttl=64 time=0.059 ms
64 bytes from 10.200.1.1: icmp_seq=5 ttl=64 time=0.064 ms

--- 10.200.1.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4073ms
rtt min/avg/max/mdev = 0.042/0.056/0.064/0.010 ms
ok

----------------------------------------------------------------------
Ran 3 tests in 4.431s

Ran 3 tests in 4.431s

OK
:: [ 15:37:18 ] :: [   PASS   ] :: Command '/usr/bin/python3 /usr/bin/ip-netns-tests.py' (Expected 0, got 0)
:: [ 15:37:18 ] :: [   PASS   ] :: Command '/usr/bin/python3 /usr/bin/ip-netns-tests.py' (Expected 0, got 0)
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   Duration: 4s
::   Duration: 4s
::   Assertions: 1 good, 0 bad
::   Assertions: 1 good, 0 bad
::   RESULT: PASS
::   RESULT: PASS

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::   Cleanup
::   Cleanup

```

tests/ip-netns-sanity-test/Makefile

@@ -0,0 +1,47 @@
+#!/bin/bash
+# SPDX-License-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-netns-sanity-test
+#   Description: Test basic ip netns funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+#~~~
+
+export TEST=/CoreOS/iproute/Sanity/ip-ns-sanity-test
+export TESTVERSION=1.0
+
+BUILT_FILES=
+
+FILES=$(METADATA) runtest.sh Makefile PURPOSE
+
+.PHONY: all install download clean
+
+run: $(FILES) build
+	./runtest.sh
+
+build: $(BUILT_FILES)
+	test -x runtest.sh || chmod a+x runtest.sh
+
+clean:
+	rm -f *~ $(BUILT_FILES)
+
+
+include /usr/share/rhts/lib/rhts-make.include
+
+$(METADATA): Makefile
+	@echo "Owner:           Susant Sahani <susant@redhat.com>" > $(METADATA)
+	@echo "Name:            $(TEST)" >> $(METADATA)
+	@echo "TestVersion:     $(TESTVERSION)" >> $(METADATA)
+	@echo "Path:            $(TEST_DIR)" >> $(METADATA)
+	@echo "Description:     Test basic ip netns funcionality" >> $(METADATA)
+	@echo "Type:            Sanity" >> $(METADATA)
+	@echo "TestTime:        15m" >> $(METADATA)
+	@echo "RunFor:          iproute" >> $(METADATA)
+	@echo "Requires:        iproute" >> $(METADATA)
+	@echo "Priority:        Normal" >> $(METADATA)
+	@echo "License:         GPLv2" >> $(METADATA)
+	@echo "Confidential:    no" >> $(METADATA)
+	@echo "Destructive:     no" >> $(METADATA)
+
+	rhts-lint $(METADATA)

tests/ip-netns-sanity-test/PURPOSE

@@ -0,0 +1,3 @@
+PURPOSE of /CoreOS/iproute/Sanity/ip-netns-sanity-test
+Description: Test basic ip netns funcionality
+Author: Susant Sahani <susant@redhat.com>

tests/ip-netns-sanity-test/ip-netns-tests.py

@@ -0,0 +1,118 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-netns-sanity-test
+#   Description: Test basic ip netns funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+# ~~~
+
+import errno
+import os
+import sys
+import time
+import unittest
+import subprocess
+import signal
+import shutil
+
+def setUpModule():
+
+    if shutil.which('ip') is None:
+        raise OSError(errno.ENOENT, 'ip not found')
+
+class GenericUtilities():
+
+    def path_exists(self, path):
+        self.assertTrue(os.path.exists(os.path.join('/var/run/netns', path)))
+
+    def link_exists(self, link):
+        self.assertTrue(os.path.exists(os.path.join('/sys/class/net', link)))
+
+    def add_veth(self):
+        subprocess.check_output(['ip', 'link', 'add', 'veth-test', 'type', 'veth', 'peer', 'name', 'test-peer'])
+
+    def del_veth(self):
+        subprocess.check_output(['ip', 'link', 'del', 'veth-test'])
+
+    def add_dummy(self):
+        subprocess.check_output(['ip', 'link', 'add', 'dummy-test', 'type', 'dummy'])
+
+    def del_dummy(self):
+        subprocess.check_output(['ip', 'link', 'del', 'dummy-test'])
+
+class IPNsTests(unittest.TestCase, GenericUtilities):
+
+    def test_add_ns(self):
+
+        subprocess.check_output(['ip', 'netns', 'add', 'net-ns-test'])
+        self.path_exists('net-ns-test')
+
+        output=subprocess.check_output(['ip', 'netns', 'list']).rstrip().decode('utf-8')
+        self.assertRegex(output, "net-ns-test")
+
+        self.addCleanup(subprocess.call, ['ip', 'netns', 'del', 'net-ns-test'])
+
+    def test_add_dummy_interface_to_ns(self):
+
+        self.add_dummy()
+        self.link_exists('dummy-test')
+
+        subprocess.check_output(['ip', 'netns', 'add', 'net-ns-test'])
+        self.path_exists('net-ns-test')
+
+        output=subprocess.check_output(['ip', 'netns', 'list']).rstrip().decode('utf-8')
+        self.assertRegex(output, "net-ns-test")
+
+        subprocess.check_output(['ip', 'link', 'set', 'dev', 'dummy-test', 'netns', 'net-ns-test'])
+
+        output=subprocess.check_output(['ip', 'netns', 'exec', 'net-ns-test', 'ip', 'link', 'show']).rstrip().decode('utf-8')
+        print(output)
+        self.assertRegex(output, "dummy-test")
+
+        self.addCleanup(subprocess.call, ['ip', 'netns', 'del', 'net-ns-test'])
+        self.addCleanup(subprocess.call, ['ip', 'netns', 'exec', 'net-ns-test', 'ip', 'link', 'del', 'dummy-test'])
+
+    def test_add_veth_interface_to_ns(self):
+
+        self.add_veth()
+        self.link_exists('veth-test')
+
+        subprocess.check_output(['ip', 'netns', 'add', 'net-ns-test'])
+        self.path_exists('net-ns-test')
+
+        output=subprocess.check_output(['ip', 'netns', 'list']).rstrip().decode('utf-8')
+        self.assertRegex(output, "net-ns-test")
+
+        subprocess.check_output(['ip', 'link', 'set', 'dev', 'test-peer', 'netns', 'net-ns-test'])
+
+        output=subprocess.check_output(['ip', 'netns', 'exec', 'net-ns-test', 'ip', 'link', 'show']).rstrip().decode('utf-8')
+        print(output)
+        self.assertRegex(output, "test-peer")
+
+        # Setup IP address of veth-test.
+        subprocess.check_output(['ip', 'addr', 'add', '10.200.1.1/24', 'dev', 'veth-test'])
+        subprocess.check_output(['ip', 'link', 'set', 'veth-test', 'up'])
+
+        # Setup IP address of v-peer1.
+        subprocess.check_output(['ip', 'netns', 'exec', 'net-ns-test', 'ip', 'addr', 'add',' 10.200.1.2/24', 'dev', 'test-peer'])
+        subprocess.check_output(['ip', 'netns', 'exec', 'net-ns-test', 'ip', 'link', 'set', 'test-peer', 'up'])
+        subprocess.check_output(['ip', 'netns', 'exec', 'net-ns-test', 'ip', 'link', 'set', 'lo', 'up'])
+
+        output=subprocess.check_output(['ip', 'netns', 'exec', 'net-ns-test', 'ip', 'addr', 'show']).rstrip().decode('utf-8')
+        print(output)
+        self.assertRegex(output, "test-peer")
+        self.assertRegex(output, "lo: <LOOPBACK,UP,LOWER_UP>")
+        self.assertRegex(output, "inet 10.200.1.2/24")
+
+        output=subprocess.check_output(['ip', 'netns', 'exec', 'net-ns-test', 'ping', '10.200.1.1', '-c', '5']).rstrip().decode('utf-8')
+        print(output)
+
+        self.addCleanup(subprocess.call, ['ip', 'netns', 'del', 'net-ns-test'])
+        self.addCleanup(subprocess.call, ['ip', 'netns', 'exec', 'net-ns-test', 'ip', 'link', 'del', 'test-peer'])
+
+
+if __name__ == '__main__':
+    unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout,
+                                                     verbosity=2))

tests/ip-netns-sanity-test/runtest.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+# SPDX-Licenetnse-Identifier: LGPL-2.1+
+# ~~~
+#   runtest.sh of /CoreOS/iproute/Sanity/ip-netns-sanity-test
+#   Description: Test basic ip netns funcionality
+#
+#   Author: Susant Sahani <susant@redhat.com>
+#   Copyright (c) 2018 Red Hat, Inc.
+#~~~
+
+# Include Beaker environment
+. /usr/share/beakerlib/beakerlib.sh || exit 1
+
+PACKAGE="iproute"
+
+rlJournalStart
+    rlPhaseStartSetup
+        rlAssertRpm $PACKAGE
+        rlRun "cp ip-netns-tests.py /usr/bin"
+    rlPhaseEnd
+
+    rlPhaseStartTest
+        rlLog "ip netns tests"
+        rlRun "/usr/bin/python3 /usr/bin/ip-netns-tests.py"
+    rlPhaseEnd
+
+    rlPhaseStartCleanup
+        rlRun "rm /usr/bin/ip-netns-tests.py"
+        rlLog "ip netns tests done"
+    rlPhaseEnd
+rlJournalPrintText
+rlJournalEnd
+
+rlGetTestState

tests/tests.yml

@@ -18,6 +18,7 @@
     - ip-tuntap-sanity-test
     - ip-tunnel-sanity-test
     - ip-l2tp-sanity-test
+    - ip-netns-sanity-test
     required_packages:
     - iproute
     - bridge-utils