Update dependencies to support K8s 1.10.x

Gopkg.toml

@@ -22,19 +22,19 @@
 
 [[constraint]]
   name = "k8s.io/client-go"
-  version = "6.0.0"
+  version = "7.0.0"
 
 [[constraint]]
   name = "k8s.io/apiextensions-apiserver"
-  version = "kubernetes-1.9.2"
+  version = "kubernetes-1.10.4"
 
 [[constraint]]
   name = "k8s.io/apimachinery"
-  version = "kubernetes-1.9.2"
+  version = "kubernetes-1.10.4"
 
 [[constraint]]
   name = "k8s.io/api"
-  version = "kubernetes-1.9.2"
+  version = "kubernetes-1.10.4"
 
 [[constraint]]
   name = "github.com/stretchr/testify"

build/gke-test-cluster/cluster.yml.jinja

@@ -21,7 +21,7 @@ resources:
     cluster:
       name: {{ properties["cluster.name"] }}
       description: Test cluster for Agones
-      initialClusterVersion: 1.9.6-gke.1 # be specific until 1.9.x becomes default
+      initialClusterVersion: 1.10.4-gke.0 # be specific until 1.9.x becomes default
       nodePools:
         - name: "default"
           initialNodeCount: {{ properties["cluster.nodePool.initialNodeCount"] }}

install/README.md

@@ -94,7 +94,7 @@ To install `gcloud` and `kubectl`, perform the following steps:
 A [cluster][cluster] consists of at least one *cluster master* machine and multiple worker machines called *nodes*: [Compute Engine virtual machine][vms] instances that run the Kubernetes processes necessary to make them part of the cluster.
 
 ```bash
-gcloud container clusters create [CLUSTER_NAME] --cluster-version=1.9 \
+gcloud container clusters create [CLUSTER_NAME] --cluster-version=1.10 \
   --no-enable-legacy-authorization \
   --tags=game-server \
   --enable-basic-auth \