Add yaml file for host resource

Add the first yaml file and yaml parse code.

Change-Id: I27647b14a49472296ccdd3c88f7f6f07f3c916f5
Issue-ID: MULTICLOUD-152
Signed-off-by: Hong Hui Xiao <honghui_xiao@yeah.net>

3 files changed, 84 insertions, 0 deletions

diff --git a/vio/vio/api_v2/api_definition/__init__.py b/vio/vio/api_v2/api_definition/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/vio/vio/api_v2/api_definition/__init__.py
diff --git a/vio/vio/api_v2/api_definition/hosts.yaml b/vio/vio/api_v2/api_definition/hosts.yaml
new file mode 100644
index 0000000..e755c77
--- /dev/null
+++ b/vio/vio/api_v2/api_definition/hosts.yaml
@@ -0,0 +1,53 @@
+---
+  info:
+    version: "1.0.0"
+    title: "Multi Cloud Host"
+    description: "Definition of Host API"
+    termsOfService: "http://swagger.io/terms/"
+  schemes:
+    - "http"
+  produces:
+    - "application/json"
+  paths:
+    /{vimid}/{tenantid}/hosts/{hostid}:
+      parameters:
+        - type: string
+          name: vimid
+        - type: string
+          format: uuid
+          name: tenantid
+        - type: string
+          name: hostid
+          in: path
+          required: true
+      get:
+        produces:
+          - "application/json"
+        responses:
+          "200":
+            schema:
+                $ref: "#/definitions/host"
+      vim_path: "/compute/os-hypervisors"
+  definitions:
+      host:
+        properties:
+          name:
+            type: string
+            required: true
+            source: hypervisor.hypervisor_hostname
+          cpu:
+            type: integer
+            minimal: 1
+            source: hypervisor.vcpus
+            action: copy
+            required: true
+          disk_gb:
+            type: integer
+            minimal: 0
+            source: hypervisor.local_gb
+            required: true
+          memory_mb:
+            type: integer
+            minimal: 0
+            source: hypervisor.memory_mb
+            required: true
diff --git a/vio/vio/api_v2/api_definition/utils.py b/vio/vio/api_v2/api_definition/utils.py
new file mode 100644
index 0000000..faf1fb9
--- /dev/null
+++ b/vio/vio/api_v2/api_definition/utils.py
@@ -0,0 +1,31 @@
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+
+import pkg_resources
+import yaml
+
+
+def get_definition_list():
+    """ Get API Definition from YAML files. """
+
+    api_def = []
+    definition_dir = __name__[:__name__.rfind(".")]
+    for f in pkg_resources.resource_listdir(definition_dir, '.'):
+        if not f.endswith(".yaml"):
+            continue
+
+        with pkg_resources.resource_stream(definition_dir, f) as fd:
+            # TODO(xiaohhui): Should add exception handler to inform user of
+            # potential error.
+            api_def.append(yaml.safe_load(fd))
+
+    return api_def