Use URIOpt

Replace StrOpt with URIOpt.
But 'serial_port_service_uri' in nova/conf/vmware.py
is excluded because it can be non URI format(*1).

*1: https://github.com/openstack/vmware-vspc/blob/master/README.rst

Change-Id: I595c55798b482009c42261c3603a58f82e89877c
Closes-Bug: #1599034

nova/conf/ironic.py

@@ -32,8 +32,9 @@ If using the Ironic driver following options must be set:
 """)
 
 ironic_options = [
-    cfg.StrOpt(
+    cfg.URIOpt(
         'api_endpoint',
+        schemes=['http', 'https'],
         sample_default='http://ironic.example.org:6385/',
         help='URL override for the Ironic API endpoint.'),
     cfg.IntOpt(

nova/conf/mks.py

@@ -29,7 +29,8 @@ Following options must be set to provide console access.
 """)
 
 mks_opts = [
-    cfg.StrOpt('mksproxy_base_url',
+    cfg.URIOpt('mksproxy_base_url',
+               schemes=['http', 'https'],
                default='http://127.0.0.1:6090/',
                help="""
 Location of MKS web console proxy
@@ -41,7 +42,8 @@ console access, WebMKS proxy should be installed and configured
 
 Possible values:
 
-* Must be a valid URL of the form:``http://host:port/``
+* Must be a valid URL of the form:``http://host:port/`` or
+  ``https://host:port/``
 """),
     cfg.BoolOpt('enabled',
                 default=False,

nova/conf/rdp.py

@@ -46,7 +46,8 @@ Related options:
 
 """),
 
-    cfg.StrOpt('html5_proxy_base_url',
+    cfg.URIOpt('html5_proxy_base_url',
+        schemes=['http', 'https'],
         default='http://127.0.0.1:6083/',
         help="""
 The URL an end user would use to connect to the RDP HTML5 console proxy.
@@ -68,7 +69,7 @@ Possible values:
 * <scheme>://<ip-address>:<port-number>/
 
   The scheme must be identical to the scheme configured for the RDP HTML5
-  console proxy service.
+  console proxy service. It is ``http`` or ``https``.
 
   The IP address must be identical to the address on which the RDP HTML5
   console proxy service is listening.

nova/conf/vmware.py

@@ -62,6 +62,8 @@ vmware_utils_opts = [
 Set this value if affected by an increased network latency causing
 repeated characters when typing in a remote console.
 """),
+    # NOTE(takashin): 'serial_port_service_uri' can be non URI format.
+    # See https://github.com/openstack/vmware-vspc/blob/master/README.rst
     cfg.StrOpt('serial_port_service_uri',
                help="""
 Identifies the remote system where the serial port traffic will
@@ -76,14 +78,15 @@ Possible values:
 
 * Any valid URI
 """),
-    cfg.StrOpt('serial_port_proxy_uri',
+    cfg.URIOpt('serial_port_proxy_uri',
+               schemes=['telnet', 'telnets'],
                help="""
 Identifies a proxy service that provides network access to the
 serial_port_service_uri.
 
 Possible values:
 
-* Any valid URI
+* Any valid URI (The scheme is 'telnet' or 'telnets'.)
 
 Related options:
 This option is ignored if serial_port_service_uri is not specified.

releasenotes/notes/bug-1599034-35ca4dea612d8fdb.yaml

@@ -0,0 +1,11 @@
+---
+upgrade:
+  - |
+    The type of following config options have been changed
+    from string to URI. They are checked whether they follow
+    the URI format or not and its scheme.
+
+    - ``api_endpoint`` in the ``ironic`` group
+    - ``mksproxy_base_url`` in the ``mks`` group
+    - ``html5_proxy_base_url`` in the ``rdp`` group
+    - ``serial_port_proxy_uri`` in the ``vmware`` group