Alter default http boot path for containerized Ironic

Containerization is a default choice from now on.
Alter the --http-boot path defaults from /httpboot to
/var/lib/ironic/httpboot as it is configured via puppet
and t-h-t.

Change-Id: I9ec403eba10488a51ac40348e76dd47c1b7b9c2b
Signed-off-by: Bogdan Dobrelya <bdobreli@redhat.com>

releasenotes/notes/default_ironic_http_boot-4b1d3769635b829f.yaml

@@ -0,0 +1,6 @@
+---
+deprecations:
+  - |
+    The default value of `--http-boot` changed from `/httpboot` to
+    `/var/lib/ironic/httpboot` as containerized Ironic services
+    expect.

tripleoclient/constants.py

@@ -42,6 +42,7 @@ UPGRADE_QUEUE = 'upgrade'
 FFWD_UPGRADE_QUEUE = 'ffwdupgrade'
 STACK_TIMEOUT = 240
 
+IRONIC_HTTP_BOOT_BIND_MOUNT = '/var/lib/ironic/httpboot'
 
 # The default ffwd upgrade ansible playbooks generated from heat stack output
 FFWD_UPGRADE_PLAYBOOK = "fast_forward_upgrade_playbook.yaml"

tripleoclient/tests/v1/overcloud_image/test_overcloud_image.py

@@ -256,9 +256,11 @@ class TestUploadOvercloudImage(TestPluginV1):
         self.assertEqual(
             mock_subprocess_call.call_args_list, [
                 mock.call('sudo cp -f "./ironic-python-agent.kernel" '
-                          '"/httpboot/agent.kernel"', shell=True),
+                          '"/var/lib/ironic/httpboot/agent.kernel"',
+                          shell=True),
                 mock.call('sudo cp -f "./ironic-python-agent.initramfs" '
-                          '"/httpboot/agent.ramdisk"', shell=True)
+                          '"/var/lib/ironic/httpboot/agent.ramdisk"',
+                          shell=True)
             ])
 
     @mock.patch('os.path.isfile', autospec=True)
@@ -311,9 +313,11 @@ class TestUploadOvercloudImage(TestPluginV1):
         self.assertEqual(
             mock_subprocess_call.call_args_list, [
                 mock.call('sudo cp -f "./ironic-python-agent.kernel" '
-                          '"/httpboot/agent.kernel"', shell=True),
+                          '"/var/lib/ironic/httpboot/agent.kernel"',
+                          shell=True),
                 mock.call('sudo cp -f "./ironic-python-agent.initramfs" '
-                          '"/httpboot/agent.ramdisk"', shell=True)
+                          '"/var/lib/ironic/httpboot/agent.ramdisk"',
+                          shell=True)
             ])
 
     @mock.patch('os.path.isfile')
@@ -459,9 +463,11 @@ class TestUploadOvercloudImageFull(TestPluginV1):
         self.assertEqual(
             mock_subprocess_call.call_args_list, [
                 mock.call('sudo cp -f "./ironic-python-agent.kernel" '
-                          '"/httpboot/agent.kernel"', shell=True),
+                          '"/var/lib/ironic/httpboot/agent.kernel"',
+                          shell=True),
                 mock.call('sudo cp -f "./ironic-python-agent.initramfs" '
-                          '"/httpboot/agent.ramdisk"', shell=True)
+                          '"/var/lib/ironic/httpboot/agent.ramdisk"',
+                          shell=True)
             ])
 
     @mock.patch('os.path.isfile', autospec=True)

tripleoclient/v1/overcloud_image.py

@@ -28,6 +28,7 @@ from prettytable import PrettyTable
 from tripleo_common.image import build
 
 from tripleoclient import command
+from tripleoclient import constants
 from tripleoclient import utils as plugin_utils
 
 
@@ -258,7 +259,9 @@ class UploadOvercloudImage(command.Command):
         )
         parser.add_argument(
             "--http-boot",
-            default=self._get_environment_var('HTTP_BOOT', '/httpboot'),
+            default=self._get_environment_var(
+                'HTTP_BOOT',
+                constants.IRONIC_HTTP_BOOT_BIND_MOUNT),
             help=_("Root directory for the introspection image")
         )
         parser.add_argument(