Support GATEWAY type node bootstrapping

- Create router bridge and pactch port to integration bridge for gateway node
- Refactored to listen map event for node add/update
- Added CLIs

Change-Id: Id653f2a2c01d94036f77e6ce1b1230111f3dbbb1

 COMPILE_DEPS = [
 COMPILE_DEPS = [
     '//lib:CORE_DEPS',
     '//lib:CORE_DEPS',
+    '//lib:org.apache.karaf.shell.console',
+    '//cli:onos-cli',
     '//protocols/ovsdb/api:onos-protocols-ovsdb-api',
     '//protocols/ovsdb/api:onos-protocols-ovsdb-api',
     '//protocols/ovsdb/rfc:onos-protocols-ovsdb-rfc',
     '//protocols/ovsdb/rfc:onos-protocols-ovsdb-rfc',
     '//core/store/serializers:onos-core-serializers',
     '//core/store/serializers:onos-core-serializers',
@@ -14,5 +16,5 @@ onos_app (
     category = 'Utility',
     category = 'Utility',
     url = 'http://onosproject.org',
     url = 'http://onosproject.org',
     description = 'SONA Openstack Node Bootstrap Application.',
     description = 'SONA Openstack Node Bootstrap Application.',
-    required_app = [ 'org.onosproject.ovsdb' ],
+    required_app = [ 'org.onosproject.ovsdb-base' ],
 )
 )

@@ -5,26 +5,33 @@
                 "nodes" : [
                 "nodes" : [
                     {
                     {
                         "hostname" : "compute-01",
                         "hostname" : "compute-01",
-                                    "ovsdbIp" : "192.168.56.112",
-                                    "ovsdbPort" : "6640",
-                                    "bridgeId" : "of:0000000000000001",
-                                    "openstackNodeType" : "COMPUTENODE"
+                        "type" : "COMPUTE",
+                        "managementIp" : "10.203.25.244",
+                        "dataIp" : "10.134.34.222",
+                        "integrationBridge" : "of:00000000000000a1"
                     },
                     },
                     {
                     {
                         "hostname" : "compute-02",
                         "hostname" : "compute-02",
-                                    "ovsdbIp" : "192.168.56.106",
-                                    "ovsdbPort" : "6640",
-                                    "bridgeId" : "of:0000000000000002",
-                                    "openstackNodeType" : "COMPUTENODE"
+                        "type" : "COMPUTE",
+                        "managementIp" : "10.203.229.42",
+                        "dataIp" : "10.134.34.223",
+                        "integrationBridge" : "of:00000000000000a2"
                     },
                     },
                     {
                     {
-                                    "hostname" : "network",
-                                    "ovsdbIp" : "192.168.56.108",
-                                    "ovsdbPort" : "6640",
-                                    "bridgeId" : "of:0000000000000003",
-                                    "openstackNodeType" : "GATEWAYNODE",
-                                    "gatewayExternalInterfaceName" : "eth1",
-                                    "gatewayExternalInterfaceMac" : "00:00:00:00:00:10"
+                        "hostname" : "gateway-01",
+                        "type" : "GATEWAY",
+                        "managementIp" : "10.203.198.125",
+                        "dataIp" : "10.134.33.208",
+                        "integrationBridge" : "of:00000000000000a3",
+                        "routerBridge" : "of:00000000000000b3"
+                    },
+                    {
+                        "hostname" : "gateway-02",
+                        "type" : "GATEWAY",
+                        "managementIp" : "10.203.198.131",
+                        "dataIp" : "10.134.33.209",
+                        "integrationBridge" : "of:00000000000000a4",
+                        "routerBridge" : "of:00000000000000b4"
                     }
                     }
                 ]
                 ]
             }
             }

@@ -38,7 +38,7 @@
         <onos.app.url>http://onosproject.org</onos.app.url>
         <onos.app.url>http://onosproject.org</onos.app.url>
         <onos.app.readme>SONA Openstack Node Bootstrap Application</onos.app.readme>
         <onos.app.readme>SONA Openstack Node Bootstrap Application</onos.app.readme>
         <onos.app.requires>
         <onos.app.requires>
-            org.onosproject.ovsdb
+            org.onosproject.ovsdb-base
         </onos.app.requires>
         </onos.app.requires>
     </properties>
     </properties>
 
 
@@ -58,6 +58,11 @@
         </dependency>
         </dependency>
         <dependency>
         <dependency>
             <groupId>org.onosproject</groupId>
             <groupId>org.onosproject</groupId>
+            <artifactId>onos-cli</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
             <artifactId>onos-ovsdb-api</artifactId>
             <artifactId>onos-ovsdb-api</artifactId>
             <version>${project.version}</version>
             <version>${project.version}</version>
         </dependency>
         </dependency>
@@ -69,5 +74,10 @@
             <groupId>com.fasterxml.jackson.core</groupId>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-annotations</artifactId>
             <artifactId>jackson-annotations</artifactId>
         </dependency>
         </dependency>
+        <dependency>
+            <groupId>org.apache.karaf.shell</groupId>
+            <artifactId>org.apache.karaf.shell.console</artifactId>
+            <version>3.0.5</version>
+        </dependency>
     </dependencies>
     </dependencies>
 </project>
 </project>

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.openstacknode;
+
+/**
+ * Provides constants used in OpenStack node services.
+ */
+public final class Constants {
+
+    private Constants() {
+    }
+
+    public static final String INTEGRATION_BRIDGE = "br-int";
+    public static final String ROUTER_BRIDGE = "br-router";
+    public static final String DEFAULT_TUNNEL = "vxlan";
+    public static final String PATCH_INTG_BRIDGE = "patch-intg";
+    public static final String PATCH_ROUT_BRIDGE = "patch-rout";
+}
\ No newline at end of file

@@ -17,73 +17,94 @@ package org.onosproject.openstacknode;
 
 
 
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.collect.Sets;
 import com.google.common.collect.Sets;
-import org.onlab.packet.Ip4Address;
-import org.onlab.packet.MacAddress;
-import org.onlab.packet.TpPort;
+import org.onlab.packet.IpAddress;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.DeviceId;
-import org.slf4j.Logger;
+import org.onosproject.openstacknode.OpenstackNodeService.NodeType;
 import java.util.Set;
 import java.util.Set;
 import org.onosproject.net.config.Config;
 import org.onosproject.net.config.Config;
-import static org.slf4j.LoggerFactory.getLogger;
+
+import static org.onosproject.net.config.Config.FieldPresence.MANDATORY;
+import static org.onosproject.openstacknode.OpenstackNodeService.NodeType.GATEWAY;
 
 
 /**
 /**
  * Configuration object for OpensatckNode service.
  * Configuration object for OpensatckNode service.
  */
  */
-public class OpenstackNodeConfig extends Config<ApplicationId> {
+public final class OpenstackNodeConfig extends Config<ApplicationId> {
+
+    private static final String NODES = "nodes";
+    private static final String HOST_NAME = "hostname";
+    private static final String TYPE = "type";
+    private static final String MANAGEMENT_IP = "managementIp";
+    private static final String DATA_IP = "dataIp";
+    private static final String INTEGRATION_BRIDGE = "integrationBridge";
+    private static final String ROUTER_BRIDGE = "routerBridge";
 
 
-    protected final Logger log = getLogger(getClass());
+    @Override
+    public boolean isValid() {
+        boolean result = hasOnlyFields(NODES);
+
+        if (object.get(NODES) == null || object.get(NODES).size() < 1) {
+            final String msg = "No node is present";
+            throw new IllegalArgumentException(msg);
+        }
 
 
+        for (JsonNode node : object.get(NODES)) {
+            ObjectNode osNode = (ObjectNode) node;
+            result &= hasOnlyFields(osNode,
+                    HOST_NAME,
+                    TYPE,
+                    MANAGEMENT_IP,
+                    DATA_IP,
+                    INTEGRATION_BRIDGE,
+                    ROUTER_BRIDGE
+            );
 
 
-    public static final String NODES = "nodes";
-    public static final String HOST_NAME = "hostname";
-    public static final String OVSDB_IP = "ovsdbIp";
-    public static final String OVSDB_PORT = "ovsdbPort";
-    public static final String BRIDGE_ID = "bridgeId";
-    public static final String NODE_TYPE = "openstackNodeType";
-    public static final String GATEWAY_EXTERNAL_INTERFACE_NAME = "gatewayExternalInterfaceName";
-    public static final String GATEWAY_EXTERNAL_INTERFACE_MAC = "gatewayExternalInterfaceMac";
+            result &= isString(osNode, HOST_NAME, MANDATORY);
+            result &= isString(osNode, TYPE, MANDATORY);
+            result &= isIpAddress(osNode, MANAGEMENT_IP, MANDATORY);
+            result &= result && isIpAddress(osNode, DATA_IP, MANDATORY);
+            result &= isString(osNode, INTEGRATION_BRIDGE, MANDATORY);
+
+            DeviceId.deviceId(osNode.get(INTEGRATION_BRIDGE).asText());
+            NodeType.valueOf(osNode.get(TYPE).asText());
+
+            if (osNode.get(TYPE).asText().equals(GATEWAY.name())) {
+                result &= isString(osNode, ROUTER_BRIDGE, MANDATORY);
+                DeviceId.deviceId(osNode.get(ROUTER_BRIDGE).asText());
+            }
+        }
+        return result;
+    }
 
 
     /**
     /**
      * Returns the set of nodes read from network config.
      * Returns the set of nodes read from network config.
      *
      *
-     * @return set of OpensatckNodeConfig or null
+     * @return set of openstack nodes
      */
      */
     public Set<OpenstackNode> openstackNodes() {
     public Set<OpenstackNode> openstackNodes() {
-
         Set<OpenstackNode> nodes = Sets.newHashSet();
         Set<OpenstackNode> nodes = Sets.newHashSet();
 
 
-        JsonNode jsonNodes = object.get(NODES);
-        if (jsonNodes == null) {
-            return null;
-        }
+        for (JsonNode node : object.get(NODES)) {
+            NodeType type = NodeType.valueOf(get(node, TYPE));
+            OpenstackNode.Builder nodeBuilder = OpenstackNode.builder()
+                    .integrationBridge(DeviceId.deviceId(get(node, INTEGRATION_BRIDGE)))
+                    .dataIp(IpAddress.valueOf(get(node, DATA_IP)))
+                    .managementIp(IpAddress.valueOf(get(node, MANAGEMENT_IP)))
+                    .type(type)
+                    .hostname(get(node, HOST_NAME));
 
 
-        jsonNodes.forEach(jsonNode -> {
-            try {
-                if (OpenstackNodeService.OpenstackNodeType.valueOf(jsonNode.path(NODE_TYPE).asText()) ==
-                        OpenstackNodeService.OpenstackNodeType.COMPUTENODE) {
-                    nodes.add(new OpenstackNode(
-                            jsonNode.path(HOST_NAME).asText(),
-                            Ip4Address.valueOf(jsonNode.path(OVSDB_IP).asText()),
-                            TpPort.tpPort(jsonNode.path(OVSDB_PORT).asInt()),
-                            DeviceId.deviceId(jsonNode.path(BRIDGE_ID).asText()),
-                            OpenstackNodeService.OpenstackNodeType.valueOf(jsonNode.path(NODE_TYPE).asText()),
-                            null, MacAddress.NONE));
-                } else {
-                    nodes.add(new OpenstackNode(
-                            jsonNode.path(HOST_NAME).asText(),
-                            Ip4Address.valueOf(jsonNode.path(OVSDB_IP).asText()),
-                            TpPort.tpPort(jsonNode.path(OVSDB_PORT).asInt()),
-                            DeviceId.deviceId(jsonNode.path(BRIDGE_ID).asText()),
-                            OpenstackNodeService.OpenstackNodeType.valueOf(jsonNode.path(NODE_TYPE).asText()),
-                            jsonNode.path(GATEWAY_EXTERNAL_INTERFACE_NAME).asText(),
-                            MacAddress.valueOf(jsonNode.path(GATEWAY_EXTERNAL_INTERFACE_MAC).asText())));
+            if (type.equals(GATEWAY)) {
+                nodeBuilder.routerBridge(DeviceId.deviceId(get(node, ROUTER_BRIDGE)));
             }
             }
-            } catch (IllegalArgumentException | NullPointerException e) {
-                log.error("Failed to read {}", e.toString());
+            nodes.add(nodeBuilder.build());
         }
         }
-        });
         return nodes;
         return nodes;
     }
     }
+
+    private String get(JsonNode jsonNode, String path) {
+        return jsonNode.get(path).asText();
+    }
 }
 }

@@ -15,26 +15,33 @@
  */
  */
 package org.onosproject.openstacknode;
 package org.onosproject.openstacknode;
 
 
+import org.onlab.packet.IpAddress;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+
 import java.util.List;
 import java.util.List;
+import java.util.Optional;
+import java.util.Set;
 
 
 /**
 /**
  * Handles the bootstrap request for compute/gateway node.
  * Handles the bootstrap request for compute/gateway node.
  */
  */
 public interface OpenstackNodeService {
 public interface OpenstackNodeService {
 
 
-    public enum OpenstackNodeType {
+    enum NodeType {
         /**
         /**
          * Compute or Gateway Node.
          * Compute or Gateway Node.
          */
          */
-        COMPUTENODE,
-        GATEWAYNODE
+        COMPUTE,
+        GATEWAY
     }
     }
+
     /**
     /**
-     * Adds a new node to the service.
+     * Adds or updates a new node to the service.
      *
      *
      * @param node openstack node
      * @param node openstack node
      */
      */
-    void addNode(OpenstackNode node);
+    void addOrUpdateNode(OpenstackNode node);
 
 
     /**
     /**
      * Deletes a node from the service.
      * Deletes a node from the service.
@@ -44,18 +51,58 @@ public interface OpenstackNodeService {
     void deleteNode(OpenstackNode node);
     void deleteNode(OpenstackNode node);
 
 
     /**
     /**
-     * Returns nodes known to the service for designated openstacktype.
+     * Returns all nodes known to the service.
      *
      *
-     * @param openstackNodeType openstack node type
      * @return list of nodes
      * @return list of nodes
      */
      */
-    List<OpenstackNode> getNodes(OpenstackNodeType openstackNodeType);
+    List<OpenstackNode> nodes();
 
 
     /**
     /**
-     * Returns the NodeState for a given node.
+     * Returns all nodes in complete state.
      *
      *
-     * @param node openstack node
-     * @return true if the NodeState for a given node is COMPLETE, false otherwise
+     * @return set of nodes
+     */
+    Set<OpenstackNode> completeNodes();
+
+    /**
+     * Returns node initialization state is complete or not.
+     *
+     * @param hostname hostname of the node
+     * @return true if initial node setup is completed, otherwise false
+     */
+    boolean isComplete(String hostname);
+
+    /**
+     * Returns data network IP address of a given integration bridge device.
+     *
+     * @param intBridgeId integration bridge device id
+     * @return ip address; empty value otherwise
+     */
+    Optional<IpAddress> dataIp(DeviceId intBridgeId);
+
+    /**
+     * Returns tunnel port number of a given integration bridge device.
+     *
+     * @param intBridgeId integration bridge device id
+     * @return port number; or empty value
+     */
+    Optional<PortNumber> tunnelPort(DeviceId intBridgeId);
+
+    /**
+     * Returns router bridge device ID connected to a given integration bridge.
+     * It returns valid value only if the node type is GATEWAY.
+     *
+     * @param intBridgeId device id of the integration bridge
+     * @return device id of a router bridge; or empty value
+     */
+    Optional<DeviceId> routerBridge(DeviceId intBridgeId);
+
+    /**
+     * Returns port number connected to the router bridge.
+     * It returns valid value only if the node type is GATEWAY.
+     *
+     * @param intBridgeId integration bridge device id
+     * @return port number; or empty value
      */
      */
-    boolean isComplete(OpenstackNode node);
+    Optional<PortNumber> externalPort(DeviceId intBridgeId);
 }
 }

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.openstacknode;
+
+/**
+ * Entity that defines possible init state of the OpenStack node.
+ */
+public interface OpenstackNodeState {
+    /**
+     * Returns null for no state.
+     *
+     * @return null
+     */
+    static OpenstackNodeState noState() {
+        return null;
+    }
+}
\ No newline at end of file

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.openstacknode.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Port;
+import org.onosproject.net.Device;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.openstacknode.OpenstackNode;
+import org.onosproject.openstacknode.OpenstackNodeService;
+
+import static org.onosproject.net.AnnotationKeys.PORT_NAME;
+import static org.onosproject.openstacknode.Constants.*;
+import static org.onosproject.openstacknode.OpenstackNodeService.NodeType.GATEWAY;
+
+/**
+ * Checks detailed node init state.
+ */
+@Command(scope = "onos", name = "openstack-node-check",
+        description = "Shows detailed node init state")
+public class OpenstackNodeCheckCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "hostname", description = "Hostname",
+            required = true, multiValued = false)
+    private String hostname = null;
+
+    private static final String MSG_OK = "OK";
+    private static final String MSG_NO = "NO";
+
+    @Override
+    protected void execute() {
+        OpenstackNodeService nodeService = AbstractShellCommand.get(OpenstackNodeService.class);
+        DeviceService deviceService = AbstractShellCommand.get(DeviceService.class);
+
+        OpenstackNode node = nodeService.nodes()
+                .stream()
+                .filter(n -> n.hostname().equals(hostname))
+                .findFirst()
+                .orElse(null);
+
+        if (node == null) {
+            print("Cannot find %s from registered nodes", hostname);
+            return;
+        }
+
+        print("%n[Integration Bridge Status]");
+        Device device = deviceService.getDevice(node.intBridge());
+        if (device != null) {
+            print("%s %s=%s available=%s %s",
+                    deviceService.isAvailable(device.id()) ? MSG_OK : MSG_NO,
+                    INTEGRATION_BRIDGE,
+                    device.id(),
+                    deviceService.isAvailable(device.id()),
+                    device.annotations());
+
+            print(getPortState(deviceService, node.intBridge(), DEFAULT_TUNNEL));
+        } else {
+            print("%s %s=%s is not available",
+                    MSG_NO,
+                    INTEGRATION_BRIDGE,
+                    node.intBridge());
+        }
+
+        if (node.type().equals(GATEWAY)) {
+            print("%n[Router Bridge Status]");
+            device = deviceService.getDevice(node.routerBridge().get());
+            if (device != null) {
+                print("%s %s=%s available=%s %s",
+                        deviceService.isAvailable(device.id()) ? MSG_OK : MSG_NO,
+                        ROUTER_BRIDGE,
+                        device.id(),
+                        deviceService.isAvailable(device.id()),
+                        device.annotations());
+
+                print(getPortState(deviceService, node.routerBridge().get(), PATCH_ROUT_BRIDGE));
+                print(getPortState(deviceService, node.intBridge(), PATCH_INTG_BRIDGE));
+            } else {
+                print("%s %s=%s is not available",
+                        MSG_NO,
+                        ROUTER_BRIDGE,
+                        node.intBridge());
+            }
+        }
+    }
+
+    private String getPortState(DeviceService deviceService, DeviceId deviceId, String portName) {
+        Port port = deviceService.getPorts(deviceId).stream()
+                .filter(p -> p.annotations().value(PORT_NAME).equals(portName) &&
+                        p.isEnabled())
+                .findAny().orElse(null);
+
+        if (port != null) {
+            return String.format("%s %s portNum=%s enabled=%s %s",
+                    port.isEnabled() ? MSG_OK : MSG_NO,
+                    portName,
+                    port.number(),
+                    port.isEnabled() ? Boolean.TRUE : Boolean.FALSE,
+                    port.annotations());
+        } else {
+            return String.format("%s %s does not exist", MSG_NO, portName);
+        }
+    }
+}

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.openstacknode.cli;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknode.OpenstackNode;
+import org.onosproject.openstacknode.OpenstackNodeService;
+
+import java.util.NoSuchElementException;
+
+/**
+ * Initializes nodes for OpenStack node service.
+ */
+@Command(scope = "onos", name = "openstack-node-init",
+        description = "Initializes nodes for OpenStack node service")
+public class OpenstackNodeInitCommand extends AbstractShellCommand {
+
+    @Argument(index = 0, name = "hostnames", description = "Hostname(s)",
+            required = true, multiValued = true)
+    private String[] hostnames = null;
+
+    @Override
+    protected void execute() {
+        OpenstackNodeService nodeService = AbstractShellCommand.get(OpenstackNodeService.class);
+
+        for (String hostname : hostnames) {
+            OpenstackNode node;
+            try {
+                node = nodeService.nodes()
+                        .stream()
+                        .filter(n -> n.hostname().equals(hostname))
+                        .findFirst().get();
+            } catch (NoSuchElementException e) {
+                print("Unable to find %s", hostname);
+                continue;
+            }
+
+            nodeService.addOrUpdateNode(node);
+        }
+    }
+}

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.openstacknode.cli;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.openstacknode.OpenstackNode;
+import org.onosproject.openstacknode.OpenstackNodeService;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Lists all nodes registered to the service.
+ */
+@Command(scope = "onos", name = "openstack-nodes",
+        description = "Lists all nodes registered in OpenStack node service")
+public class OpenstackNodeListCommand extends AbstractShellCommand {
+
+    private static final String COMPLETE = "COMPLETE";
+    private static final String INCOMPLETE = "INCOMPLETE";
+
+    @Override
+    protected void execute() {
+        OpenstackNodeService nodeService = AbstractShellCommand.get(OpenstackNodeService.class);
+        List<OpenstackNode> nodes = nodeService.nodes();
+        Collections.sort(nodes, OpenstackNode.OPENSTACK_NODE_COMPARATOR);
+
+        if (outputJson()) {
+            print("%s", json(nodeService, nodes));
+        } else {
+            for (OpenstackNode node : nodes) {
+                print("hostname=%s, type=%s, managementIp=%s, dataIp=%s, intBridge=%s, routerBridge=%s init=%s",
+                        node.hostname(),
+                        node.type(),
+                        node.managementIp(),
+                        node.dataIp(),
+                        node.intBridge(),
+                        node.routerBridge(),
+                        getState(nodeService, node));
+            }
+            print("Total %s nodes", nodeService.nodes().size());
+        }
+    }
+
+    private JsonNode json(OpenstackNodeService nodeService, List<OpenstackNode> nodes) {
+        ObjectMapper mapper = new ObjectMapper();
+        ArrayNode result = mapper.createArrayNode();
+        for (OpenstackNode node : nodes) {
+            result.add(mapper.createObjectNode()
+                    .put("hostname", node.hostname())
+                    .put("type", node.type().name())
+                    .put("managementIp", node.managementIp().toString())
+                    .put("dataIp", node.dataIp().toString())
+                    .put("intBridge", node.intBridge().toString())
+                    .put("routerBridge", node.routerBridge().toString())
+                    .put("state", getState(nodeService, node)));
+        }
+        return result;
+    }
+
+    private String getState(OpenstackNodeService nodeService, OpenstackNode node) {
+        return nodeService.isComplete(node.hostname()) ? COMPLETE : INCOMPLETE;
+    }
+}
\ No newline at end of file

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+
+/**
+ * Console commands to manage OpenStack nodes.
+ */
+package org.onosproject.openstacknode.cli;
\ No newline at end of file

+<!--
+  ~ Copyright 2016-present Open Networking Laboratory
+  ~
+  ~ 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.
+  -->
+<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0">
+
+    <command-bundle xmlns="http://karaf.apache.org/xmlns/shell/v1.1.0">
+        <command>
+            <action class="org.onosproject.openstacknode.cli.OpenstackNodeListCommand"/>
+        </command>
+        <command>
+            <action class="org.onosproject.openstacknode.cli.OpenstackNodeCheckCommand"/>
+        </command>
+        <command>
+            <action class="org.onosproject.openstacknode.cli.OpenstackNodeInitCommand"/>
+        </command>
+    </command-bundle>
+</blueprint>