Fix e2e-kubeadm release-1.6 job.

Recent changes to kubernetes/master moved where bazel .deb files get
pushed. The kubernetes_e2e.py scenario was updated to accommodate this
change, but the kubernetes/release-1.6 branch still pushes these .debs
to the old location. Since we only support ci/periodic jobs for
release-1.6, and we expect to use the new location from now on, consider
this a special case for now and we can remove this code when we no
longer support the 1.6.x series.

scenarios/kubernetes_e2e.py

@@ -79,6 +79,12 @@ def kubeadm_version(mode):
             raise ValueError('STABLE_BUILD_SCM_REVISION not found')
         version = status.group(1)
 
+        # Work-around for release-1.6 jobs, which still upload debs to an older
+        # location (without os/arch prefixes).
+        # TODO(pipejakob): remove this when we no longer support 1.6.x.
+        if version.startswith("v1.6."):
+            return 'gs://kubernetes-release-dev/bazel/%s/build/debs/' % version
+
     elif mode == 'pull':
         version = '%s/%s' % (os.environ['PULL_NUMBER'], os.getenv('PULL_REFS'))
 

scenarios/kubernetes_e2e_test.py

@@ -41,6 +41,17 @@
 'STABLE_gitMajor 1\n' \
 'STABLE_gitMinor 7+\n'
 
+FAKE_WORKSPACE_STATUS_V1_6 = 'STABLE_BUILD_GIT_COMMIT 84febd4537dd190518657405b7bdb921dfbe0387\n' \
+'STABLE_BUILD_SCM_STATUS clean\n' \
+'STABLE_BUILD_SCM_REVISION v1.6.4-beta.0.18+84febd4537dd19\n' \
+'STABLE_BUILD_MAJOR_VERSION 1\n' \
+'STABLE_BUILD_MINOR_VERSION 6+\n' \
+'STABLE_gitCommit 84febd4537dd190518657405b7bdb921dfbe0387\n' \
+'STABLE_gitTreeState clean\n' \
+'STABLE_gitVersion v1.6.4-beta.0.18+84febd4537dd19\n' \
+'STABLE_gitMajor 1\n' \
+'STABLE_gitMinor 6+\n'
+
 def fake_pass(*_unused, **_unused2):
     """Do nothing."""
     pass
@@ -95,10 +106,15 @@ def fake_check_env(self, env, *cmd):
         self.callstack.append(string.join(cmd))
 
     def fake_output_work_status(self, *cmd):
-        """fake a workstatus bolb."""
+        """fake a workstatus blob."""
         self.callstack.append(string.join(cmd))
         return FAKE_WORKSPACE_STATUS
 
+    def fake_output_work_status_v1_6(self, *cmd):
+        """fake a workstatus blob for v1.6."""
+        self.callstack.append(string.join(cmd))
+        return FAKE_WORKSPACE_STATUS_V1_6
+
 
 class LocalTest(ScenarioTest):
     """Class for testing e2e scenario in local mode."""
@@ -174,6 +190,25 @@ def test_kubeadm_periodic(self):
                 called = True
         self.assertTrue(called)
 
+    def test_kubeadm_periodic_v1_6(self):
+        """Make sure kubeadm periodic mode has correct version on v1.6"""
+        args = self.parser.parse_args(['--mode=local', '--kubeadm=periodic'])
+        self.assertEqual(args.mode, 'local')
+        self.assertEqual(args.kubeadm, 'periodic')
+        with Stub(kubernetes_e2e, 'check_env', self.fake_check_env):
+            with Stub(kubernetes_e2e, 'check_output', self.fake_output_work_status_v1_6):
+                kubernetes_e2e.main(args)
+
+        self.assertIn('E2E_OPT', self.envs)
+        self.assertIn('--kubernetes-anywhere-kubeadm-version gs://kubernetes-release-dev/bazel/'
+                      'v1.6.4-beta.0.18+84febd4537dd19/build/debs/', self.envs['E2E_OPT'])
+        called = False
+        for call in self.callstack:
+            self.assertFalse(call.startswith('docker'))
+            if call == 'hack/print-workspace-status.sh':
+                called = True
+        self.assertTrue(called)
+
     def test_kubeadm_pull(self):
         """Make sure kubeadm pull mode is fine overall."""
         args = self.parser.parse_args(['--mode=local', '--kubeadm=pull'])