ARIA multivim plugin initial checkin

Change-Id: I3a24ab6fc5ba54466bfecaf596a13b8907248ae8
Issue-id: SO-77
Signed-off-by: DeWayne Filppi <dewayne@gigaspaces.com>

1 files changed, 222 insertions, 0 deletions

diff --git a/aria/multivim-plugin/neutron_plugin/port.py b/aria/multivim-plugin/neutron_plugin/port.py
new file mode 100644
index 0000000000..4db4c442c5
--- /dev/null
+++ b/aria/multivim-plugin/neutron_plugin/port.py
@@ -0,0 +1,222 @@
+#########
+# Copyright (c) 2014 GigaSpaces Technologies Ltd. All rights reserved
+#
+# 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.
+
+from cloudify import ctx
+from cloudify.decorators import operation
+from cloudify.exceptions import NonRecoverableError
+
+import neutronclient.common.exceptions as neutron_exceptions
+
+from openstack_plugin_common import (
+    transform_resource_name,
+    with_neutron_client,
+    with_nova_client,
+    get_resource_id,
+    get_openstack_id_of_single_connected_node_by_openstack_type,
+    delete_resource_and_runtime_properties,
+    delete_runtime_properties,
+    use_external_resource,
+    is_external_relationship,
+    validate_resource,
+    OPENSTACK_ID_PROPERTY,
+    OPENSTACK_TYPE_PROPERTY,
+    OPENSTACK_NAME_PROPERTY,
+    COMMON_RUNTIME_PROPERTIES_KEYS,
+    is_external_relationship_not_conditionally_created)
+
+from neutron_plugin.network import NETWORK_OPENSTACK_TYPE
+from neutron_plugin.subnet import SUBNET_OPENSTACK_TYPE
+from openstack_plugin_common.floatingip import get_server_floating_ip
+
+PORT_OPENSTACK_TYPE = 'port'
+
+# Runtime properties
+FIXED_IP_ADDRESS_PROPERTY = 'fixed_ip_address'  # the fixed ip address
+MAC_ADDRESS_PROPERTY = 'mac_address'  # the mac address
+RUNTIME_PROPERTIES_KEYS = \
+    COMMON_RUNTIME_PROPERTIES_KEYS + [FIXED_IP_ADDRESS_PROPERTY,
+                                      MAC_ADDRESS_PROPERTY]
+
+NO_SG_PORT_CONNECTION_RETRY_INTERVAL = 3
+
+
+@operation
+@with_neutron_client
+def create(neutron_client, args, **kwargs):
+
+    ext_port = use_external_resource(ctx, neutron_client, PORT_OPENSTACK_TYPE)
+    if ext_port:
+        try:
+            net_id = \
+                get_openstack_id_of_single_connected_node_by_openstack_type(
+                    ctx, NETWORK_OPENSTACK_TYPE, True)
+
+            if net_id:
+                port_id = ctx.instance.runtime_properties[
+                    OPENSTACK_ID_PROPERTY]
+
+                if neutron_client.show_port(
+                        port_id)['port']['network_id'] != net_id:
+                    raise NonRecoverableError(
+                        'Expected external resources port {0} and network {1} '
+                        'to be connected'.format(port_id, net_id))
+
+            ctx.instance.runtime_properties[FIXED_IP_ADDRESS_PROPERTY] = \
+                _get_fixed_ip(ext_port)
+            ctx.instance.runtime_properties[MAC_ADDRESS_PROPERTY] = \
+                ext_port['mac_address']
+            return
+        except Exception:
+            delete_runtime_properties(ctx, RUNTIME_PROPERTIES_KEYS)
+            raise
+
+    net_id = get_openstack_id_of_single_connected_node_by_openstack_type(
+        ctx, NETWORK_OPENSTACK_TYPE)
+
+    port = {
+        'name': get_resource_id(ctx, PORT_OPENSTACK_TYPE),
+        'network_id': net_id,
+        'security_groups': [],
+    }
+
+    _handle_fixed_ips(port)
+    port.update(ctx.node.properties['port'], **args)
+    transform_resource_name(ctx, port)
+
+    p = neutron_client.create_port({'port': port})['port']
+    ctx.instance.runtime_properties[OPENSTACK_ID_PROPERTY] = p['id']
+    ctx.instance.runtime_properties[OPENSTACK_TYPE_PROPERTY] =\
+        PORT_OPENSTACK_TYPE
+    ctx.instance.runtime_properties[OPENSTACK_NAME_PROPERTY] = p['name']
+    ctx.instance.runtime_properties[FIXED_IP_ADDRESS_PROPERTY] = \
+        _get_fixed_ip(p)
+    ctx.instance.runtime_properties[MAC_ADDRESS_PROPERTY] = p['mac_address']
+
+
+@operation
+@with_neutron_client
+def delete(neutron_client, **kwargs):
+    try:
+        delete_resource_and_runtime_properties(ctx, neutron_client,
+                                               RUNTIME_PROPERTIES_KEYS)
+    except neutron_exceptions.NeutronClientException, e:
+        if e.status_code == 404:
+            # port was probably deleted when an attached device was deleted
+            delete_runtime_properties(ctx, RUNTIME_PROPERTIES_KEYS)
+        else:
+            raise
+
+
+@operation
+@with_nova_client
+@with_neutron_client
+def detach(nova_client, neutron_client, **kwargs):
+
+    if is_external_relationship(ctx):
+        ctx.logger.info('Not detaching port from server since '
+                        'external port and server are being used')
+        return
+
+    port_id = ctx.target.instance.runtime_properties[OPENSTACK_ID_PROPERTY]
+    server_id = ctx.source.instance.runtime_properties[OPENSTACK_ID_PROPERTY]
+
+    server_floating_ip = get_server_floating_ip(neutron_client, server_id)
+    if server_floating_ip:
+        ctx.logger.info('We have floating ip {0} attached to server'
+                        .format(server_floating_ip['floating_ip_address']))
+        server = nova_client.servers.get(server_id)
+        server.remove_floating_ip(server_floating_ip['floating_ip_address'])
+        return ctx.operation.retry(
+            message='Waiting for the floating ip {0} to '
+                    'detach from server {1}..'
+                    .format(server_floating_ip['floating_ip_address'],
+                            server_id),
+            retry_after=10)
+    change = {
+        'port': {
+            'device_id': '',
+            'device_owner': ''
+        }
+    }
+    ctx.logger.info('Detaching port {0}...'.format(port_id))
+    neutron_client.update_port(port_id, change)
+    ctx.logger.info('Successfully detached port {0}'.format(port_id))
+
+
+@operation
+@with_neutron_client
+def connect_security_group(neutron_client, **kwargs):
+    port_id = ctx.source.instance.runtime_properties[OPENSTACK_ID_PROPERTY]
+    security_group_id = ctx.target.instance.runtime_properties[
+        OPENSTACK_ID_PROPERTY]
+
+    if is_external_relationship_not_conditionally_created(ctx):
+        ctx.logger.info('Validating external port and security-group are '
+                        'connected')
+        if any(sg for sg in neutron_client.show_port(port_id)['port'].get(
+                'security_groups', []) if sg == security_group_id):
+            return
+        raise NonRecoverableError(
+            'Expected external resources port {0} and security-group {1} to '
+            'be connected'.format(port_id, security_group_id))
+
+    # WARNING: non-atomic operation
+    port = neutron_client.cosmo_get('port', id=port_id)
+    ctx.logger.info(
+        "connect_security_group(): source_id={0} target={1}".format(
+            port_id, ctx.target.instance.runtime_properties))
+    sgs = port['security_groups'] + [security_group_id]
+    neutron_client.update_port(port_id, {'port': {'security_groups': sgs}})
+
+    # Double check if SG has been actually updated (a race-condition
+    # in OpenStack):
+    port_info = neutron_client.show_port(port_id)['port']
+    port_security_groups = port_info.get('security_groups', [])
+    if security_group_id not in port_security_groups:
+        return ctx.operation.retry(
+            message='Security group connection (`{0}\' -> `{1}\')'
+                    ' has not been established!'.format(port_id,
+                                                        security_group_id),
+            retry_after=NO_SG_PORT_CONNECTION_RETRY_INTERVAL
+        )
+
+
+@operation
+@with_neutron_client
+def creation_validation(neutron_client, **kwargs):
+    validate_resource(ctx, neutron_client, PORT_OPENSTACK_TYPE)
+
+
+def _get_fixed_ip(port):
+    # a port may have no fixed IP if it's set on a network without subnets
+    return port['fixed_ips'][0]['ip_address'] if port['fixed_ips'] else None
+
+
+def _handle_fixed_ips(port):
+    fixed_ips_element = {}
+
+    # checking for fixed ip property
+    if ctx.node.properties['fixed_ip']:
+        fixed_ips_element['ip_address'] = ctx.node.properties['fixed_ip']
+
+    # checking for a connected subnet
+    subnet_id = get_openstack_id_of_single_connected_node_by_openstack_type(
+        ctx, SUBNET_OPENSTACK_TYPE, if_exists=True)
+    if subnet_id:
+        fixed_ips_element['subnet_id'] = subnet_id
+
+    # applying fixed ip parameter, if available
+    if fixed_ips_element:
+        port['fixed_ips'] = [fixed_ips_element]