Make amphora timezone configurable

The new amp_timezone option allows to adjust the timezone of
amphora using cloud-init.

Change-Id: I2f49cbb7f8d99ba2da878bbfc7081a3cc3b3aa07

devstack/plugin.sh

@@ -332,6 +332,7 @@ function octavia_configure {
     iniset $OCTAVIA_CONF controller_worker network_driver ${OCTAVIA_NETWORK_DRIVER}
     iniset $OCTAVIA_CONF controller_worker image_driver ${OCTAVIA_IMAGE_DRIVER}
     iniset $OCTAVIA_CONF controller_worker amp_image_tag ${OCTAVIA_AMP_IMAGE_TAG}
+    iniset $OCTAVIA_CONF controller_worker amp_timezone $(readlink -e /etc/localtime | sed "s/\/usr\/share\/zoneinfo\///")
 
     iniuncomment $OCTAVIA_CONF health_manager heartbeat_key
     iniset $OCTAVIA_CONF health_manager heartbeat_key ${OCTAVIA_HEALTH_KEY}

etc/octavia.conf

@@ -311,6 +311,9 @@
 # Upload the ssh key as the service_auth user described elsewhere in this config.
 # Leaving this variable blank will install no ssh key on the amphora.
 # amp_ssh_key_name =
+# Defines the timezone to use as represented in /usr/share/zoneinfo.
+# Default is UTC.
+# amp_timezone =
 
 # Networks to attach to the Amphorae examples:
 #  - One primary network

octavia/common/config.py

@@ -477,6 +477,10 @@ controller_worker_opts = [
                default='',
                help=_('Optional SSH keypair name, in nova, that will be used '
                       'for the authorized_keys inside the amphora.')),
+    cfg.StrOpt('amp_timezone',
+               default='UTC',
+               help=_('The timezone to use in the Amphora as represented in '
+                      '/usr/share/zoneinfo.')),
     cfg.ListOpt('amp_boot_network_list',
                 default='',
                 help=_('List of networks to attach to the Amphorae. '

octavia/common/jinja/templates/user_data_config_drive.template

@@ -37,3 +37,5 @@ runcmd:
 {% if user_data -%}
 -   service amphora-agent restart
 {%- endif %}
+
+timezone: {{ timezone }}

octavia/common/jinja/user_data_jinja_cfg.py

@@ -35,4 +35,5 @@ class UserDataJinjaCfg(object):
             constants.USER_DATA_CONFIG_DRIVE_TEMPLATE)
 
     def build_user_data_config(self, user_data):
-        return self.agent_template.render(user_data=user_data)
+        return self.agent_template.render(
+            user_data=user_data, timezone=CONF.controller_worker.amp_timezone)

octavia/tests/unit/common/jinja/test_user_data_jinja_cfg.py

@@ -40,7 +40,8 @@ BASE_CFG = ('#cloud-config\n'
 WRITE_FILES_CFG = ('write_files:\n')
 RUN_CMD = ('runcmd:\n'
            '-   systemctl restart rsyslog\n')
-WRITE_FILES_CMD = ('-   service amphora-agent restart')
+WRITE_FILES_CMD = ('-   service amphora-agent restart\n')
+TIMEZONE = '\ntimezone: UTC'
 
 
 class TestUserDataJinjaCfg(base.TestCase):
@@ -52,12 +53,12 @@ class TestUserDataJinjaCfg(base.TestCase):
         expected_config = (BASE_CFG + WRITE_FILES_CFG +
                            '-   path: /test/config/path\n'
                            '    content: |\n' + EXPECTED_TEST_CONFIG +
-                           RUN_CMD + WRITE_FILES_CMD)
+                           RUN_CMD + WRITE_FILES_CMD + TIMEZONE)
         ud_cfg = udc.build_user_data_config({'/test/config/path': TEST_CONFIG})
         self.assertEqual(expected_config, ud_cfg)
 
     def test_build_user_data_config_no_files(self):
         udc = user_data_jinja_cfg.UserDataJinjaCfg()
-        expected_config = (BASE_CFG + '\n' + RUN_CMD)
+        expected_config = (BASE_CFG + '\n' + RUN_CMD + '\n' + TIMEZONE)
         ud_cfg = udc.build_user_data_config({})
         self.assertEqual(expected_config, ud_cfg)

releasenotes/notes/add-config-option-for-amp-timezone-6496a33a23d7520d.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Configuration of the amphora's timezone is now possible using new
+    configuration setting "amp_timezone" in the controller_worker options
+    group.