Add workaround for horizon image upload issue

JIRA: COMPASS-573

1. With HORIZON_IMAGES_UPLOAD_MODE set to direct
Horizon provides the endpoint for Glance based on
OPENSTACK_ENDPOINT_TYPE. If OPENSTACK_ENDPOINT_TYPE
is set to internalURL any browser outside the internal
network is unable to upload image. Add ansible task to
set HORIZON_IMAGES_UPLOAD_MODE to legacy as a workaround.

2. Add ansible lookup plugin to get openstack release

3. set openstack_release into group_vars/all in config-osa
to make this variable readable for other tasks

Change-Id: I9ef358e1f4acb0c329a032e18359de12284f3b56
Signed-off-by: Harry Huang <huangxiangyu5@huawei.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/deploy/ansible_plugins/lookup/yamlfile.py b/deploy/ansible_plugins/lookup/yamlfile.py
new file mode 100644
index 00000000..c915adc7
--- /dev/null
+++ b/deploy/ansible_plugins/lookup/yamlfile.py
@@ -0,0 +1,55 @@
+#!/bin/venv python
+
+import yaml
+import sys
+
+compass_bin = "/opt/compass/bin"
+sys.path.append(compass_bin)
+import switch_virtualenv  # noqa: F401
+
+from ansible.errors import AnsibleError  # noqa: E402
+from ansible.plugins.lookup import LookupBase  # noqa: E402
+
+
+class LookupModule(LookupBase):
+
+    def read_yaml(self, yaml_path, key, default=None):
+        if not key:
+            return None
+
+        with open(yaml_path) as fd:
+            yaml_data = yaml.safe_load(fd)
+
+        if key in yaml_data:
+            return yaml_data[key]
+        else:
+            return default
+
+    def run(self, terms, variables=None, **kwargs):
+        res = []
+        if not isinstance(terms, list):
+            terms = [terms]
+
+        for term in terms:
+            params = term.split()
+            yaml_path = params[0]
+
+            param_dict = {
+                'key': None,
+                'default': None
+            }
+
+            try:
+                for param in params[1:]:
+                    key, value = param.split('=')
+                    assert(key in param_dict)
+                    param_dict[key] = value
+            except (AttributeError, AssertionError), e:
+                raise AnsibleError(e)
+
+            data = self.read_yaml(yaml_path,
+                                  param_dict['key'],
+                                  param_dict['default'])
+            res.append(data)
+
+        return res