Merge pull request #52013 from FengyunPan/autoprobing-external-network

Automatic merge from submit-queue (batch tested with PRs 52013, 56719). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Support autoprobing floating-network-id for openstack cloud provider

Currently if user doesn't specify floatingnetwork-id and loadbalancer.openstack.org/floating-network-id annotation, openstack cloud provider can't create a external LoadBalancer service.
Actually we can get  floatingnetwork-id automatically. 
If we get multiple  floatingnetwork-ids, then ask user to specify one, or we use the  floatingnetwork-id to create floatingip for external LoadBalancer service.

This is a part of #50726

**Special notes for your reviewer**:
/assign @dims

**Release note**:
```release-note
Support autoprobing floating-network-id for openstack cloud provider
```

Godeps/Godeps.json

@@ -442,47 +442,47 @@
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-			"Comment": "v1.0.0-beta.2-159-g27d450a0",
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-			"Comment": "v1.0.0-beta.2-159-g27d450a0",
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 			"ImportPath": "github.com/containerd/containerd/api/services/version/v1",
-			"Comment": "v1.0.0-beta.2-159-g27d450a0",
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 		},
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 			"ImportPath": "github.com/containerd/containerd/api/types",
-			"Comment": "v1.0.0-beta.2-159-g27d450a0",
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 		{
 			"ImportPath": "github.com/containerd/containerd/api/types/task",
-			"Comment": "v1.0.0-beta.2-159-g27d450a0",
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 			"ImportPath": "github.com/containerd/containerd/dialer",
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 			"ImportPath": "github.com/containerd/containerd/errdefs",
-			"Comment": "v1.0.0-beta.2-159-g27d450a0",
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 			"Rev": "27d450a01bb533d7ebc5701eb52792565396b084"
 		},
 		{
 			"ImportPath": "github.com/containerd/containerd/namespaces",
-			"Comment": "v1.0.0-beta.2-159-g27d450a0",
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 			"Rev": "27d450a01bb533d7ebc5701eb52792565396b084"
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 		{
@@ -1319,7 +1319,7 @@
 		},
 		{
 			"ImportPath": "github.com/gogo/protobuf/types",
-			"Comment": "v0.4-3-gc0656edd",
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@@ -1633,115 +1633,123 @@
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 			"ImportPath": "github.com/gophercloud/gophercloud",
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 			"ImportPath": "github.com/gophercloud/gophercloud/openstack",
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 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/blockstorage/extensions/volumeactions",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/blockstorage/v1/volumes",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/blockstorage/v2/volumes",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
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 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/blockstorage/v3/volumes",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
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 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/common/extensions",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
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 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/attachinterfaces",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
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 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/volumeattach",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
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 		},
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-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
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-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
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 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/compute/v2/servers",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
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 		},
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 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v2/tenants",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v2/tokens",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v3/extensions/trusts",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v3/tokens",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
+		},
+		{
+			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external",
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/floatingips",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/routers",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/listeners",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/loadbalancers",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/monitors",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/pools",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/security/groups",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/security/rules",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
+		},
+		{
+			"ImportPath": "github.com/gophercloud/gophercloud/openstack/networking/v2/networks",
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
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-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/utils",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
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 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/pagination",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gorilla/context",

Godeps/LICENSES

@@ -58330,6 +58330,205 @@ specific language governing permissions and limitations under the License.
 ================================================================================
 
 
+================================================================================
+= vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external licensed under: =
+
+Copyright 2012-2013 Rackspace, Inc.
+
+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.                                
+
+------
+ 
+				Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
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+      "Legal Entity" shall mean the union of the acting entity and all
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+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      "Work" shall mean the work of authorship, whether in Source or
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
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+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
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+   6. Trademarks. This License does not grant permission to use the trade
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+   7. Disclaimer of Warranty. Unless required by applicable law or
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+   8. Limitation of Liability. In no event and under no legal theory,
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+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
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+      Work (including but not limited to damages for loss of goodwill,
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+   END OF TERMS AND CONDITIONS
+
+= vendor/github.com/gophercloud/gophercloud/LICENSE dd19699707373c2ca31531a659130416
+================================================================================
+
+
 ================================================================================
 = vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/floatingips licensed under: =
 
@@ -59922,6 +60121,205 @@ specific language governing permissions and limitations under the License.
 ================================================================================
 
 
+================================================================================
+= vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks licensed under: =
+
+Copyright 2012-2013 Rackspace, Inc.
+
+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.                                
+
+------
+ 
+				Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+= vendor/github.com/gophercloud/gophercloud/LICENSE dd19699707373c2ca31531a659130416
+================================================================================
+
+
 ================================================================================
 = vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/ports licensed under: =
 

pkg/cloudprovider/providers/openstack/BUILD

@@ -39,6 +39,7 @@ go_library(
         "//vendor/github.com/gophercloud/gophercloud/openstack/identity/v3/extensions/trusts:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/openstack/identity/v3/tokens:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions:go_default_library",
+        "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/floatingips:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/routers:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/listeners:go_default_library",
@@ -47,6 +48,7 @@ go_library(
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/pools:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/security/groups:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/security/rules:go_default_library",
+        "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/ports:go_default_library",
         "//vendor/github.com/gophercloud/gophercloud/pagination:go_default_library",
         "//vendor/github.com/mitchellh/mapstructure:go_default_library",

pkg/cloudprovider/providers/openstack/openstack_loadbalancer.go

@@ -25,6 +25,7 @@ import (
 	"github.com/golang/glog"
 	"github.com/gophercloud/gophercloud"
 	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions"
+	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external"
 	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/floatingips"
 	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/listeners"
 	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/loadbalancers"
@@ -32,6 +33,7 @@ import (
 	v2pools "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/pools"
 	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/security/groups"
 	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/security/rules"
+	"github.com/gophercloud/gophercloud/openstack/networking/v2/networks"
 	neutronports "github.com/gophercloud/gophercloud/openstack/networking/v2/ports"
 	"github.com/gophercloud/gophercloud/pagination"
 
@@ -566,6 +568,52 @@ func getNodeSecurityGroupIDForLB(compute *gophercloud.ServiceClient, nodes []*v1
 	return nodeSecurityGroupIDs.List(), nil
 }
 
+// getFloatingNetworkIdForLB returns a floating-network-id for cluster.
+func getFloatingNetworkIdForLB(client *gophercloud.ServiceClient) (string, error) {
+	var floatingNetworkIds []string
+
+	type NetworkWithExternalExt struct {
+		networks.Network
+		external.NetworkExternalExt
+	}
+
+	err := networks.List(client, networks.ListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
+		var externalNetwork []NetworkWithExternalExt
+		err := networks.ExtractNetworksInto(page, &externalNetwork)
+		if err != nil {
+			return false, err
+		}
+
+		for _, externalNet := range externalNetwork {
+			if externalNet.External {
+				floatingNetworkIds = append(floatingNetworkIds, externalNet.ID)
+			}
+		}
+
+		if len(floatingNetworkIds) > 1 {
+			return false, ErrMultipleResults
+		}
+		return true, nil
+	})
+	if err != nil {
+		if isNotFound(err) {
+			return "", ErrNotFound
+		}
+
+		if err == ErrMultipleResults {
+			glog.V(4).Infof("find multiple external networks, pick the first one when there are no explicit configuration.")
+			return floatingNetworkIds[0], nil
+		}
+		return "", err
+	}
+
+	if len(floatingNetworkIds) == 0 {
+		return "", ErrNotFound
+	}
+
+	return floatingNetworkIds[0], nil
+}
+
 // TODO: This code currently ignores 'region' and always creates a
 // loadbalancer in only the current OpenStack region.  We should take
 // a list of regions (from config) and query/create loadbalancers in
@@ -596,7 +644,13 @@ func (lbaas *LbaasV2) EnsureLoadBalancer(clusterName string, apiService *v1.Serv
 	}
 
 	floatingPool := getStringFromServiceAnnotation(apiService, ServiceAnnotationLoadBalancerFloatingNetworkId, lbaas.opts.FloatingNetworkId)
-	glog.V(4).Infof("EnsureLoadBalancer using floatingPool: %v", floatingPool)
+	if len(floatingPool) == 0 {
+		var err error
+		floatingPool, err = getFloatingNetworkIdForLB(lbaas.network)
+		if err != nil {
+			glog.Warningf("Failed to find floating-network-id for loadbalancer service %s/%s: %v", apiService.Namespace, apiService.Name, err)
+		}
+	}
 
 	var internalAnnotation bool
 	internal := getStringFromServiceAnnotation(apiService, ServiceAnnotationLoadBalancerInternal, "false")
@@ -606,7 +660,7 @@ func (lbaas *LbaasV2) EnsureLoadBalancer(clusterName string, apiService *v1.Serv
 		internalAnnotation = true
 	case "false":
 		if len(floatingPool) != 0 {
-			glog.V(4).Infof("Ensure an external loadbalancer service.")
+			glog.V(4).Infof("Ensure an external loadbalancer service, using floatingPool: %v", floatingPool)
 			internalAnnotation = false
 		} else {
 			return nil, fmt.Errorf("floating-network-id or loadbalancer.openstack.org/floating-network-id should be specified when ensuring an external loadbalancer service")

staging/src/k8s.io/apiserver/Godeps/Godeps.json

@@ -408,31 +408,31 @@
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v2/tenants",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v2/tokens",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v3/tokens",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/utils",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/pagination",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gregjones/httpcache",

staging/src/k8s.io/client-go/Godeps/Godeps.json

@@ -172,31 +172,31 @@
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v2/tenants",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v2/tokens",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/identity/v3/tokens",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/openstack/utils",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gophercloud/gophercloud/pagination",
-			"Rev": "db5f840b1d1a595280d643defc09ce277996959e"
+			"Rev": "8183543f90d1aef267a5ecc209f2e0715b355acb"
 		},
 		{
 			"ImportPath": "github.com/gregjones/httpcache",

vendor/github.com/gophercloud/gophercloud/openstack/BUILD

@@ -45,6 +45,7 @@ filegroup(
         "//vendor/github.com/gophercloud/gophercloud/openstack/identity/v3/extensions/trusts:all-srcs",
         "//vendor/github.com/gophercloud/gophercloud/openstack/identity/v3/tokens:all-srcs",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions:all-srcs",
+        "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks:all-srcs",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/ports:all-srcs",
         "//vendor/github.com/gophercloud/gophercloud/openstack/utils:all-srcs",
     ],

vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/flavors/results.go

@@ -65,7 +65,7 @@ type Flavor struct {
 	VCPUs int `json:"vcpus"`
 
 	// IsPublic indicates whether the flavor is public.
-	IsPublic bool `json:"is_public"`
+	IsPublic bool `json:"os-flavor-access:is_public"`
 }
 
 func (r *Flavor) UnmarshalJSON(b []byte) error {

vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/servers/requests.go

@@ -515,7 +515,7 @@ func (opts ResizeOpts) ToServerResizeMap() (map[string]interface{}, error) {
 // Note that this implies rebuilding it.
 //
 // Unfortunately, one cannot pass rebuild parameters to the resize function.
-// When the resize completes, the server will be in RESIZE_VERIFY state.
+// When the resize completes, the server will be in VERIFY_RESIZE state.
 // While in this state, you can explore the use of the new server's
 // configuration. If you like it, call ConfirmResize() to commit the resize
 // permanently. Otherwise, call RevertResize() to restore the old configuration.

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/BUILD

@@ -23,6 +23,7 @@ filegroup(
     name = "all-srcs",
     srcs = [
         ":package-srcs",
+        "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external:all-srcs",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/floatingips:all-srcs",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/routers:all-srcs",
         "//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas_v2/listeners:all-srcs",

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external/BUILD

@@ -0,0 +1,27 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "doc.go",
+        "requests.go",
+        "results.go",
+    ],
+    importpath = "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external",
+    visibility = ["//visibility:public"],
+    deps = ["//vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks:go_default_library"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external/doc.go

@@ -0,0 +1,46 @@
+/*
+Package external provides information and interaction with the external
+extension for the OpenStack Networking service.
+
+Example to List Networks with External Information
+
+	type NetworkWithExternalExt struct {
+		networks.Network
+		external.NetworkExternalExt
+	}
+
+	var allNetworks []NetworkWithExternalExt
+
+	allPages, err := networks.List(networkClient, nil).AllPages()
+	if err != nil {
+		panic(err)
+	}
+
+	err = networks.ExtractNetworksInto(allPages, &allNetworks)
+	if err != nil {
+		panic(err)
+	}
+
+	for _, network := range allNetworks {
+		fmt.Println("%+v\n", network)
+	}
+
+Example to Create a Network with External Information
+
+	iTrue := true
+	networkCreateOpts := networks.CreateOpts{
+		Name:         "private",
+		AdminStateUp: &iTrue,
+	}
+
+	createOpts := external.CreateOptsExt{
+		networkCreateOpts,
+		&iTrue,
+	}
+
+	network, err := networks.Create(networkClient, createOpts).Extract()
+	if err != nil {
+		panic(err)
+	}
+*/
+package external

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external/requests.go

@@ -0,0 +1,56 @@
+package external
+
+import (
+	"github.com/gophercloud/gophercloud/openstack/networking/v2/networks"
+)
+
+// CreateOptsExt is the structure used when creating new external network
+// resources. It embeds networks.CreateOpts and so inherits all of its required
+// and optional fields, with the addition of the External field.
+type CreateOptsExt struct {
+	networks.CreateOptsBuilder
+	External *bool `json:"router:external,omitempty"`
+}
+
+// ToNetworkCreateMap adds the router:external options to the base network
+// creation options.
+func (opts CreateOptsExt) ToNetworkCreateMap() (map[string]interface{}, error) {
+	base, err := opts.CreateOptsBuilder.ToNetworkCreateMap()
+	if err != nil {
+		return nil, err
+	}
+
+	if opts.External == nil {
+		return base, nil
+	}
+
+	networkMap := base["network"].(map[string]interface{})
+	networkMap["router:external"] = opts.External
+
+	return base, nil
+}
+
+// UpdateOptsExt is the structure used when updating existing external network
+// resources. It embeds networks.UpdateOpts and so inherits all of its required
+// and optional fields, with the addition of the External field.
+type UpdateOptsExt struct {
+	networks.UpdateOptsBuilder
+	External *bool `json:"router:external,omitempty"`
+}
+
+// ToNetworkUpdateMap casts an UpdateOpts struct to a map.
+func (opts UpdateOptsExt) ToNetworkUpdateMap() (map[string]interface{}, error) {
+	base, err := opts.UpdateOptsBuilder.ToNetworkUpdateMap()
+	if err != nil {
+		return nil, err
+	}
+
+	if opts.External == nil {
+		return base, nil
+	}
+
+	networkMap := base["network"].(map[string]interface{})
+	networkMap["router:external"] = opts.External
+
+	return base, nil
+}

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/external/results.go

@@ -0,0 +1,8 @@
+package external
+
+// NetworkExternalExt represents a decorated form of a Network with based on the
+// "external-net" extension.
+type NetworkExternalExt struct {
+	// Specifies whether the network is an external network or not.
+	External bool `json:"router:external"`
+}

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks/BUILD

@@ -0,0 +1,31 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "doc.go",
+        "requests.go",
+        "results.go",
+        "urls.go",
+    ],
+    importpath = "github.com/gophercloud/gophercloud/openstack/networking/v2/networks",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//vendor/github.com/gophercloud/gophercloud:go_default_library",
+        "//vendor/github.com/gophercloud/gophercloud/pagination:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks/doc.go

@@ -0,0 +1,65 @@
+/*
+Package networks contains functionality for working with Neutron network
+resources. A network is an isolated virtual layer-2 broadcast domain that is
+typically reserved for the tenant who created it (unless you configure the
+network to be shared). Tenants can create multiple networks until the
+thresholds per-tenant quota is reached.
+
+In the v2.0 Networking API, the network is the main entity. Ports and subnets
+are always associated with a network.
+
+Example to List Networks
+
+	listOpts := networks.ListOpts{
+		TenantID: "a99e9b4e620e4db09a2dfb6e42a01e66",
+	}
+
+	allPages, err := networks.List(networkClient, listOpts).AllPages()
+	if err != nil {
+		panic(err)
+	}
+
+	allNetworks, err := networks.ExtractNetworks(allPages)
+	if err != nil {
+		panic(err)
+	}
+
+	for _, network := range allNetworks {
+		fmt.Printf("%+v", network)
+	}
+
+Example to Create a Network
+
+	iTrue := true
+	createOpts := networks.CreateOpts{
+		Name:         "network_1",
+		AdminStateUp: &iTrue,
+	}
+
+	network, err := networks.Create(networkClient, createOpts).Extract()
+	if err != nil {
+		panic(err)
+	}
+
+Example to Update a Network
+
+	networkID := "484cda0e-106f-4f4b-bb3f-d413710bbe78"
+
+	updateOpts := networks.UpdateOpts{
+		Name: "new_name",
+	}
+
+	network, err := networks.Update(networkClient, networkID, updateOpts).Extract()
+	if err != nil {
+		panic(err)
+	}
+
+Example to Delete a Network
+
+	networkID := "484cda0e-106f-4f4b-bb3f-d413710bbe78"
+	err := networks.Delete(networkClient, networkID).ExtractErr()
+	if err != nil {
+		panic(err)
+	}
+*/
+package networks

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks/requests.go

@@ -0,0 +1,165 @@
+package networks
+
+import (
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/pagination"
+)
+
+// ListOptsBuilder allows extensions to add additional parameters to the
+// List request.
+type ListOptsBuilder interface {
+	ToNetworkListQuery() (string, error)
+}
+
+// ListOpts allows the filtering and sorting of paginated collections through
+// the API. Filtering is achieved by passing in struct field values that map to
+// the network attributes you want to see returned. SortKey allows you to sort
+// by a particular network attribute. SortDir sets the direction, and is either
+// `asc' or `desc'. Marker and Limit are used for pagination.
+type ListOpts struct {
+	Status       string `q:"status"`
+	Name         string `q:"name"`
+	AdminStateUp *bool  `q:"admin_state_up"`
+	TenantID     string `q:"tenant_id"`
+	Shared       *bool  `q:"shared"`
+	ID           string `q:"id"`
+	Marker       string `q:"marker"`
+	Limit        int    `q:"limit"`
+	SortKey      string `q:"sort_key"`
+	SortDir      string `q:"sort_dir"`
+}
+
+// ToNetworkListQuery formats a ListOpts into a query string.
+func (opts ListOpts) ToNetworkListQuery() (string, error) {
+	q, err := gophercloud.BuildQueryString(opts)
+	return q.String(), err
+}
+
+// List returns a Pager which allows you to iterate over a collection of
+// networks. It accepts a ListOpts struct, which allows you to filter and sort
+// the returned collection for greater efficiency.
+func List(c *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
+	url := listURL(c)
+	if opts != nil {
+		query, err := opts.ToNetworkListQuery()
+		if err != nil {
+			return pagination.Pager{Err: err}
+		}
+		url += query
+	}
+	return pagination.NewPager(c, url, func(r pagination.PageResult) pagination.Page {
+		return NetworkPage{pagination.LinkedPageBase{PageResult: r}}
+	})
+}
+
+// Get retrieves a specific network based on its unique ID.
+func Get(c *gophercloud.ServiceClient, id string) (r GetResult) {
+	_, r.Err = c.Get(getURL(c, id), &r.Body, nil)
+	return
+}
+
+// CreateOptsBuilder allows extensions to add additional parameters to the
+// Create request.
+type CreateOptsBuilder interface {
+	ToNetworkCreateMap() (map[string]interface{}, error)
+}
+
+// CreateOpts represents options used to create a network.
+type CreateOpts struct {
+	AdminStateUp *bool  `json:"admin_state_up,omitempty"`
+	Name         string `json:"name,omitempty"`
+	Shared       *bool  `json:"shared,omitempty"`
+	TenantID     string `json:"tenant_id,omitempty"`
+}
+
+// ToNetworkCreateMap builds a request body from CreateOpts.
+func (opts CreateOpts) ToNetworkCreateMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "network")
+}
+
+// Create accepts a CreateOpts struct and creates a new network using the values
+// provided. This operation does not actually require a request body, i.e. the
+// CreateOpts struct argument can be empty.
+//
+// The tenant ID that is contained in the URI is the tenant that creates the
+// network. An admin user, however, has the option of specifying another tenant
+// ID in the CreateOpts struct.
+func Create(c *gophercloud.ServiceClient, opts CreateOptsBuilder) (r CreateResult) {
+	b, err := opts.ToNetworkCreateMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = c.Post(createURL(c), b, &r.Body, nil)
+	return
+}
+
+// UpdateOptsBuilder allows extensions to add additional parameters to the
+// Update request.
+type UpdateOptsBuilder interface {
+	ToNetworkUpdateMap() (map[string]interface{}, error)
+}
+
+// UpdateOpts represents options used to update a network.
+type UpdateOpts struct {
+	AdminStateUp *bool  `json:"admin_state_up,omitempty"`
+	Name         string `json:"name,omitempty"`
+	Shared       *bool  `json:"shared,omitempty"`
+}
+
+// ToNetworkUpdateMap builds a request body from UpdateOpts.
+func (opts UpdateOpts) ToNetworkUpdateMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "network")
+}
+
+// Update accepts a UpdateOpts struct and updates an existing network using the
+// values provided. For more information, see the Create function.
+func Update(c *gophercloud.ServiceClient, networkID string, opts UpdateOptsBuilder) (r UpdateResult) {
+	b, err := opts.ToNetworkUpdateMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = c.Put(updateURL(c, networkID), b, &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201},
+	})
+	return
+}
+
+// Delete accepts a unique ID and deletes the network associated with it.
+func Delete(c *gophercloud.ServiceClient, networkID string) (r DeleteResult) {
+	_, r.Err = c.Delete(deleteURL(c, networkID), nil)
+	return
+}
+
+// IDFromName is a convenience function that returns a network's ID, given
+// its name.
+func IDFromName(client *gophercloud.ServiceClient, name string) (string, error) {
+	count := 0
+	id := ""
+	pages, err := List(client, nil).AllPages()
+	if err != nil {
+		return "", err
+	}
+
+	all, err := ExtractNetworks(pages)
+	if err != nil {
+		return "", err
+	}
+
+	for _, s := range all {
+		if s.Name == name {
+			count++
+			id = s.ID
+		}
+	}
+
+	switch count {
+	case 0:
+		return "", gophercloud.ErrResourceNotFound{Name: name, ResourceType: "network"}
+	case 1:
+		return id, nil
+	default:
+		return "", gophercloud.ErrMultipleResourcesFound{Name: name, Count: count, ResourceType: "network"}
+	}
+}

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks/results.go

@@ -0,0 +1,111 @@
+package networks
+
+import (
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/pagination"
+)
+
+type commonResult struct {
+	gophercloud.Result
+}
+
+// Extract is a function that accepts a result and extracts a network resource.
+func (r commonResult) Extract() (*Network, error) {
+	var s Network
+	err := r.ExtractInto(&s)
+	return &s, err
+}
+
+func (r commonResult) ExtractInto(v interface{}) error {
+	return r.Result.ExtractIntoStructPtr(v, "network")
+}
+
+// CreateResult represents the result of a create operation. Call its Extract
+// method to interpret it as a Network.
+type CreateResult struct {
+	commonResult
+}
+
+// GetResult represents the result of a get operation. Call its Extract
+// method to interpret it as a Network.
+type GetResult struct {
+	commonResult
+}
+
+// UpdateResult represents the result of an update operation. Call its Extract
+// method to interpret it as a Network.
+type UpdateResult struct {
+	commonResult
+}
+
+// DeleteResult represents the result of a delete operation. Call its
+// ExtractErr method to determine if the request succeeded or failed.
+type DeleteResult struct {
+	gophercloud.ErrResult
+}
+
+// Network represents, well, a network.
+type Network struct {
+	// UUID for the network
+	ID string `json:"id"`
+
+	// Human-readable name for the network. Might not be unique.
+	Name string `json:"name"`
+
+	// The administrative state of network. If false (down), the network does not
+	// forward packets.
+	AdminStateUp bool `json:"admin_state_up"`
+
+	// Indicates whether network is currently operational. Possible values include
+	// `ACTIVE', `DOWN', `BUILD', or `ERROR'. Plug-ins might define additional
+	// values.
+	Status string `json:"status"`
+
+	// Subnets associated with this network.
+	Subnets []string `json:"subnets"`
+
+	// Owner of network.
+	TenantID string `json:"tenant_id"`
+
+	// Specifies whether the network resource can be accessed by any tenant.
+	Shared bool `json:"shared"`
+}
+
+// NetworkPage is the page returned by a pager when traversing over a
+// collection of networks.
+type NetworkPage struct {
+	pagination.LinkedPageBase
+}
+
+// NextPageURL is invoked when a paginated collection of networks has reached
+// the end of a page and the pager seeks to traverse over a new one. In order
+// to do this, it needs to construct the next page's URL.
+func (r NetworkPage) NextPageURL() (string, error) {
+	var s struct {
+		Links []gophercloud.Link `json:"networks_links"`
+	}
+	err := r.ExtractInto(&s)
+	if err != nil {
+		return "", err
+	}
+	return gophercloud.ExtractNextURL(s.Links)
+}
+
+// IsEmpty checks whether a NetworkPage struct is empty.
+func (r NetworkPage) IsEmpty() (bool, error) {
+	is, err := ExtractNetworks(r)
+	return len(is) == 0, err
+}
+
+// ExtractNetworks accepts a Page struct, specifically a NetworkPage struct,
+// and extracts the elements into a slice of Network structs. In other words,
+// a generic collection is mapped into a relevant slice.
+func ExtractNetworks(r pagination.Page) ([]Network, error) {
+	var s []Network
+	err := ExtractNetworksInto(r, &s)
+	return s, err
+}
+
+func ExtractNetworksInto(r pagination.Page, v interface{}) error {
+	return r.(NetworkPage).Result.ExtractIntoSlicePtr(v, "networks")
+}

vendor/github.com/gophercloud/gophercloud/openstack/networking/v2/networks/urls.go

@@ -0,0 +1,31 @@
+package networks
+
+import "github.com/gophercloud/gophercloud"
+
+func resourceURL(c *gophercloud.ServiceClient, id string) string {
+	return c.ServiceURL("networks", id)
+}
+
+func rootURL(c *gophercloud.ServiceClient) string {
+	return c.ServiceURL("networks")
+}
+
+func getURL(c *gophercloud.ServiceClient, id string) string {
+	return resourceURL(c, id)
+}
+
+func listURL(c *gophercloud.ServiceClient) string {
+	return rootURL(c)
+}
+
+func createURL(c *gophercloud.ServiceClient) string {
+	return rootURL(c)
+}
+
+func updateURL(c *gophercloud.ServiceClient, id string) string {
+	return resourceURL(c, id)
+}
+
+func deleteURL(c *gophercloud.ServiceClient, id string) string {
+	return resourceURL(c, id)
+}

vendor/github.com/gophercloud/gophercloud/params.go

@@ -347,12 +347,21 @@ func BuildQueryString(opts interface{}) (*url.URL, error) {
 								params.Add(tags[0], v.Index(i).String())
 							}
 						}
+					case reflect.Map:
+						if v.Type().Key().Kind() == reflect.String && v.Type().Elem().Kind() == reflect.String {
+							var s []string
+							for _, k := range v.MapKeys() {
+								value := v.MapIndex(k).String()
+								s = append(s, fmt.Sprintf("'%s':'%s'", k.String(), value))
+							}
+							params.Add(tags[0], fmt.Sprintf("{%s}", strings.Join(s, ", ")))
+						}
 					}
 				} else {
 					// Otherwise, the field is not set.
 					if len(tags) == 2 && tags[1] == "required" {
 						// And the field is required. Return an error.
-						return nil, fmt.Errorf("Required query parameter [%s] not set.", f.Name)
+						return &url.URL{}, fmt.Errorf("Required query parameter [%s] not set.", f.Name)
 					}
 				}
 			}