Update to GCE API 1.17.0-rc

Seen in #9, Google changed its APIs. We need to update as it previous version causes a `404` error.

Closes #12.
Closes #9.

Author: dadoonet

README.md

@@ -5,13 +5,13 @@ The GCE Cloud plugin allows to use GCE API for the unicast discovery mechanism.
 
 In order to install the plugin, simply run: `bin/plugin -install elasticsearch/elasticsearch-cloud-gce/2.0.0.RC1`.
 
-|       GCE Cloud Plugin     |    elasticsearch    | Release date |
-|----------------------------|---------------------|:------------:|
-| 2.0.0-SNAPSHOT (master)    | 1.0.0.RC1 -> master |              |
-| 2.0.0.RC1                  | 1.0.0.RC1 -> master |  2014-01-15  |
-| 1.2.0-SNAPSHOT (1.x)       | 0.90.3 -> 0.90      |              |
-| 1.1.0                      | 0.90.3 -> 0.90      |  2013-08-09  |
-| 1.0.0                      | 0.90.0 -> 0.90.2    |  2013-07-23  |
+|       GCE Cloud Plugin     |    elasticsearch    |   gce api    | Release date |
+|----------------------------|---------------------|--------------|:------------:|
+| 2.0.0-SNAPSHOT (master)    | 1.0.0.RC1 -> master |  1.17.0-rc   |              |
+| 2.0.0.RC1                  | 1.0.0.RC1 -> master |  1.15.0-rc   |  2014-01-15  |
+| 1.2.0-SNAPSHOT (1.x)       | 0.90.3 -> 0.90      |  1.17.0-rc   |              |
+| 1.1.0                      | 0.90.3 -> 0.90      |  1.15.0-rc   |  2013-08-09  |
+| 1.0.0                      | 0.90.0 -> 0.90.2    |  1.15.0-rc   |  2013-07-23  |
 
 
 Google Compute Engine Virtual Machine Discovery
@@ -98,13 +98,13 @@ sudo apt-get update
 sudo apt-get install curl
 
 # Download Elasticsearch
-curl https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.2.deb -o elasticsearch-0.90.2.deb
+wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.0.0.RC1.deb
 
 # Prepare Java installation
 sudo apt-get install java7-runtime-headless
 
 # Prepare Elasticsearch installation
-sudo dpkg -i elasticsearch-0.90.2.deb
+sudo dpkg -i elasticsearch-1.0.0.RC1.deb
 
 # Check that elasticsearch is running:
 curl http://localhost:9200/
@@ -116,10 +116,13 @@ This command should give you a JSON result:
 {
   "ok" : true,
   "status" : 200,
-  "name" : "Lunatica",
+  "name" : "Shriker",
   "version" : {
-    "number" : "0.90.2",
-    "snapshot_build" : false
+    "number" : "1.0.0.RC1",
+    "build_hash" : "0a5781f44876e8d1c30b6360628d59cb2a7a2bbb",
+    "build_timestamp" : "2014-01-10T10:18:37Z",
+    "build_snapshot" : false,
+    "lucene_version" : "4.6"
   },
   "tagline" : "You Know, for Search"
 }
@@ -131,8 +134,7 @@ Install the plugin:
 
 ```sh
 # Use Plugin Manager to install it
-sudo /usr/share/elasticsearch/bin/plugin
-     --install elasticsearch/elasticsearch-cloud-gce/1.1.0
+sudo /usr/share/elasticsearch/bin/plugin --install elasticsearch/elasticsearch-cloud-gce/2.0.0.RC1
 
 # Configure it:
 sudo vi /etc/elasticsearch/elasticsearch.yml
@@ -206,7 +208,7 @@ gcutil listkernels --project es-cloud
 | projects/google/global/kernels/gce-v20130603 | SCSI-enabled 3.3.8-gcg built 2013-05-29 01:04:00 |             |
 +----------------------------------------------+--------------------------------------------------+-------------+
 # Note the kernel you prefer to use and add your image to your catalog:
-gcutil --project=es-cloud addimage elasticsearch-0-90-2 \
+gcutil --project=es-cloud addimage elasticsearch-1-0-0-RC1 \
        gs://esimage/e4686d7f5bf904a924ae0cfeb58d0827c6d5b966.image.tar.gz \
        --preferred_kernel=projects/google/global/kernels/gce-v20130603
 
@@ -220,7 +222,7 @@ As you have now an image, you can create as many instances as you need:
 
 ```sh
 # Just change node name (here myesnode2)
-gcutil --project=es-cloud addinstance --image=elasticsearch-0-90-2 \
+gcutil --project=es-cloud addinstance --image=elasticsearch-1-0-0-RC1 \
        --kernel=projects/google/global/kernels/gce-v20130603 myesnode2 \
        --zone europe-west1-a --machine_type f1-micro --service_account_scope=compute-rw \
        --persistent_boot_disk
@@ -293,7 +295,7 @@ gcutil --project=es-cloud addinstance myesnode1 \
        --metadata=es_port:9301
 
 # when creating an instance from an image
-gcutil --project=es-cloud addinstance --image=elasticsearch-0-90-2 \
+gcutil --project=es-cloud addinstance --image=elasticsearch-1-0-0-RC1 \
        --kernel=projects/google/global/kernels/gce-v20130603 myesnode2 \
        --zone europe-west1-a --machine_type f1-micro --service_account_scope=compute-rw \
        --persistent_boot_disk --metadata=es_port:9301
@@ -340,7 +342,7 @@ License
 
 This software is licensed under the Apache 2 license, quoted below.
 
-    Copyright 2009-2013 ElasticSearch <http://www.elasticsearch.org>
+    Copyright 2009-2014 Elasticsearch <http://www.elasticsearch.org>
 
     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

pom.xml

@@ -48,8 +48,8 @@ governing permissions and limitations under the License. -->
 
     <properties>
         <elasticsearch.version>1.0.0.RC1</elasticsearch.version>
-        <google.gce.version>v1beta15-rev3-1.15.0-rc</google.gce.version>
-        <google.api.version>1.15.0-rc</google.api.version>
+        <google.gce.version>v1beta16-rev1-1.17.0-rc</google.gce.version>
+        <google.api.version>1.17.0-rc</google.api.version>
         <lucene.version>4.6.0</lucene.version>
         <tests.jvms>1</tests.jvms>
         <tests.shuffle>true</tests.shuffle>
@@ -109,6 +109,18 @@ governing permissions and limitations under the License. -->
             <type>test-jar</type>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>hamcrest-core</artifactId>
+            <version>1.3.RC2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>hamcrest-library</artifactId>
+            <version>1.3.RC2</version>
+            <scope>test</scope>
+        </dependency>
 
     </dependencies>
 

src/main/java/org/elasticsearch/discovery/gce/GceUnicastHostsProvider.java

@@ -123,6 +123,11 @@ public List<DiscoveryNode> buildDynamicNodes() {
         try {
             Collection<Instance> instances = gceComputeService.instances();
 
+            if (instances == null) {
+                logger.trace("no instance found for project [{}], zone [{}].", this.project, this.zone);
+                return cachedDiscoNodes;
+            }
+
             for (Instance instance : instances) {
                 String name = instance.getName();
                 String type = instance.getMachineType();

src/test/resources/log4j.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<!-- Licensed to ElasticSearch under one or more contributor
+<!-- Licensed to Elasticsearch under one or more contributor
 license agreements. See the NOTICE file distributed with this work for additional
 information regarding copyright ownership. ElasticSearch licenses this file to you
 under the Apache License, Version 2.0 (the "License"); you may not use this