Adds an option to specify the glance endpoint type

Some environments that utilize an SSL terminator with a self-signed
certificate can use the publicURL without getting certificate
verify errors.  This allows using the internalURL with in my case
is HTTP and not HTTPS.

Closes issue: #8057

library/cloud/glance_image

@@ -104,6 +104,12 @@ options:
         - The path to the file which has to be uploaded, mutually exclusive with copy_from
      required: false
      default: None
+   endpoint_type:
+     description:
+        - endpoint URL type
+     choices: [publicURL, internalURL]
+     required: false
+     default: publicURL
 requirements: ["glanceclient", "keystoneclient"]
 
 '''
@@ -127,6 +133,7 @@ try:
 except ImportError:
     print("failed=True msg='glanceclient and keystone client are required'")
 
+
 def _get_ksclient(module, kwargs):
     try:
         client = ksclient.Client(username=kwargs.get('login_username'),
@@ -138,17 +145,18 @@ def _get_ksclient(module, kwargs):
     return client 
 
 
-def _get_endpoint(module, client):
+def _get_endpoint(module, client, endpoint_type):
     try:
-        endpoint = client.service_catalog.url_for(service_type='image', endpoint_type='publicURL')
+        endpoint = client.service_catalog.url_for(service_type='image', endpoint_type=endpoint_type)
     except Exception, e:
         module.fail_json(msg="Error getting endpoint for glance: %s" % e.message)
     return endpoint
 
+
 def _get_glance_client(module, kwargs):
     _ksclient = _get_ksclient(module, kwargs)
     token = _ksclient.auth_token
-    endpoint =_get_endpoint(module, _ksclient)
+    endpoint =_get_endpoint(module, _ksclient, kwargs.get('endpoint_type'))
     kwargs = {
             'token': token,
     }
@@ -158,6 +166,7 @@ def _get_glance_client(module, kwargs):
         module.fail_json(msg="Error in connecting to glance: %s" % e.message)
     return client
 
+
 def _glance_image_present(module, params, client):
     try:
         for image in client.images.list():
@@ -167,6 +176,7 @@ def _glance_image_present(module, params, client):
     except Exception, e:
         module.fail_json(msg="Error in fetching image list: %s" % e.message)
 
+
 def _glance_image_create(module, params, client):
     kwargs = {
                 'name':             params.get('name'),
@@ -194,6 +204,7 @@ def _glance_image_create(module, params, client):
     else:
         module.fail_json(msg=" The module timed out, please check manually " + image.status)
 
+
 def _glance_delete_image(module, params, client):
     try:
         for image in client.images.list():
@@ -203,6 +214,7 @@ def _glance_delete_image(module, params, client):
         module.fail_json(msg="Error in deleting image: %s" % e.message)
     module.exit_json(changed=True, result="Deleted")
 
+
 def main():
 
     module = AnsibleModule(
@@ -222,6 +234,7 @@ def main():
             copy_from         = dict(default= None),
             timeout           = dict(default=180),
             file              = dict(default=None),
+            endpoint_type     = dict(default='publicURL', choices=['publicURL', 'internalURL']),
             state             = dict(default='present', choices=['absent', 'present'])
         ),
         mutually_exclusive = [['file','copy_from']],
@@ -246,4 +259,3 @@ def main():
 # this is magic, see lib/ansible/module.params['common.py
 from ansible.module_utils.basic import *
 main()
-