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'),
@@ -134,30 +141,32 @@ def _get_ksclient(module, kwargs):
                                  tenant_name=kwargs.get('login_tenant_name'),
                                  auth_url=kwargs.get('auth_url'))
     except Exception, e:
-        module.fail_json(msg = "Error authenticating to the keystone: %s " % e.message)
+        module.fail_json(msg="Error authenticating to the keystone: %s " % e.message)
     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)
+        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,
     }
     try:
         client = glanceclient.Client('1', endpoint, **kwargs)
     except Exception, e:
-        module.fail_json(msg = "Error in connecting to glance: %s" %e.message)
+        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():
@@ -165,7 +174,8 @@ def _glance_image_present(module, params, client):
                 return image.id 
         return None
     except Exception, e:
-        module.fail_json(msg = "Error in fetching image list: %s" %e.message)
+        module.fail_json(msg="Error in fetching image list: %s" % e.message)
+
 
 def _glance_image_create(module, params, client):
     kwargs = {
@@ -188,11 +198,12 @@ def _glance_image_create(module, params, client):
                 break
             time.sleep(5)
     except Exception, e:
-        module.fail_json(msg = "Error in creating image: %s" %e.message)                
+        module.fail_json(msg="Error in creating image: %s" % e.message)
     if image.status == 'active':
-        module.exit_json(changed = True, result = image.status, id=image.id)
+        module.exit_json(changed=True, result=image.status, id=image.id)
     else:
-        module.fail_json(msg = " The module timed out, please check manually " + image.status) 
+        module.fail_json(msg=" The module timed out, please check manually " + image.status)
+
 
 def _glance_delete_image(module, params, client):
     try:
@@ -200,8 +211,9 @@ def _glance_delete_image(module, params, client):
             if image.name == params['name']:
                 client.images.delete(image)
     except Exception, e:
-        module.fail_json(msg = "Error in deleting image: %s" %e.message)
-    module.exit_json(changed = True, result = "Deleted")
+        module.fail_json(msg="Error in deleting image: %s" % e.message)
+    module.exit_json(changed=True, result="Deleted")
+
 
 def main():
 
@@ -222,28 +234,28 @@ 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']],
     )
     if module.params['state'] == 'present':
         if not module.params['file'] and not module.params['copy_from']:
-            module.fail_json(msg = "Either file or copy_from variable should be set to create the image")
+            module.fail_json(msg="Either file or copy_from variable should be set to create the image")
         client = _get_glance_client(module, module.params)
         id = _glance_image_present(module, module.params, client)
         if not id:
             _glance_image_create(module, module.params, client)
-        module.exit_json(changed = False, id = id, result = "success")
+        module.exit_json(changed=False, id=id, result="success")
 
     if module.params['state'] == 'absent':
         client = _get_glance_client(module, module.params)
         id = _glance_image_present(module, module.params, client)
         if not id:
-            module.exit_json(changed = False, result = "Success")
+            module.exit_json(changed=False, result="Success")
         else:
             _glance_delete_image(module, module.params, client)
 
 # this is magic, see lib/ansible/module.params['common.py
 from ansible.module_utils.basic import *
 main()
-