[gnuoy,r=james-page,t=james-page] Add support for console access.

hooks/nova_compute_context.py

@@ -310,7 +310,42 @@ class CloudComputeContext(context.OSContextGenerator):
 
         if self.restart_trigger():
             ctxt['restart_trigger'] = self.restart_trigger()
+        return ctxt
 
+
+class InstanceConsoleContext(context.OSContextGenerator):
+    interfaces = []
+
+    def get_console_info(self, proto, **kwargs):
+        console_settings = {
+            proto + '_proxy_address':
+                relation_get('console_proxy_%s_address' % (proto), **kwargs),
+            proto + '_proxy_host':
+                relation_get('console_proxy_%s_host' % (proto), **kwargs),
+            proto + '_proxy_port':
+                relation_get('console_proxy_%s_port' % (proto), **kwargs),
+        }
+        return console_settings
+
+    def __call__(self):
+        ctxt = {}
+        for rid in relation_ids('cloud-compute'):
+            for unit in related_units(rid):
+                rel = {'rid': rid, 'unit': unit}
+                proto = relation_get('console_access_protocol', **rel)
+                if not proto:
+                    # only bother with units that have a proto set.
+                    continue
+                ctxt['console_keymap'] = relation_get('console_keymap', **rel)
+                ctxt['console_access_protocol'] = proto
+                ctxt['console_vnc_type'] = True if 'vnc' in proto else False
+                if proto == 'vnc':
+                    ctxt = dict(ctxt, **self.get_console_info('xvpvnc', **rel))
+                    ctxt = dict(ctxt, **self.get_console_info('novnc', **rel))
+                else:
+                    ctxt = dict(ctxt, **self.get_console_info(proto, **rel))
+                break
+        ctxt['console_listen_addr'] = get_host_ip(unit_get('private-address'))
         return ctxt
 
 

hooks/nova_compute_utils.py

@@ -32,6 +32,7 @@ from nova_compute_context import (
     NovaComputeLibvirtContext,
     NovaComputeCephContext,
     NeutronComputeContext,
+    InstanceConsoleContext,
 )
 
 CA_CERT_PATH = '/usr/local/share/ca-certificates/keystone_juju_ca_cert.crt'
@@ -77,7 +78,8 @@ BASE_RESOURCE_MAP = {
                      context.SubordinateConfigContext(
                          interface='nova-ceilometer',
                          service='nova',
-                         config_file=NOVA_CONF)],
+                         config_file=NOVA_CONF),
+                     InstanceConsoleContext(), ],
     },
 }
 

templates/havana/nova.conf

@@ -36,6 +36,25 @@ rbd_user = {{ rbd_user }}
 rbd_secret_uuid = {{ rbd_secret_uuid }}
 {% endif -%}
 
+{% if console_vnc_type -%}
+vnc_enabled = True
+novnc_enabled = True
+vnc_keymap = {{ console_keymap }}
+vncserver_listen = 0.0.0.0
+vncserver_proxyclient_address = {{ console_listen_addr }}
+{% if console_access_protocol == 'novnc' or console_access_protocol == 'vnc' -%}
+novncproxy_base_url = {{ novnc_proxy_address }}
+{% endif -%}
+{% if console_access_protocol == 'xvpvnc' or console_access_protocol == 'vnc' -%}
+xvpvncproxy_port = {{ xvpvnc_proxy_port }}
+xvpvncproxy_host = {{ xvpvnc_proxy_host }}
+xvpvncproxy_base_url = {{ xvpvnc_proxy_address }}
+{% endif -%}
+{% else -%}
+vnc_enabled = False
+novnc_enabled = False
+{% endif -%}
+
 {% if neutron_plugin and neutron_plugin == 'ovs' -%}
 libvirt_vif_driver = nova.virt.libvirt.vif.LibvirtGenericVIFDriver
 {% if neutron_security_groups -%}
@@ -85,3 +104,13 @@ instances_path = {{ instances_path }}
 {{ key }} = {{ value }}
 {% endfor -%}
 {% endif -%}
+
+{% if console_access_protocol == 'spice' -%}
+[spice]
+agent_enabled = True
+enabled = True
+html5proxy_base_url = {{ spice_proxy_address }}
+keymap = {{ console_keymap }}
+server_listen = 0.0.0.0
+server_proxyclient_address = {{ console_listen_addr }}
+{% endif -%}