Update to Kubernetes 1.11

Now we have >= 1.11 support across cloud providers, we can finally update
client-go to provide extra features.

This updated client-go to 8.0.0 this includes Status API on the clients
so we can take advantage of it - which should ideally give us a performance boost.

*Please note:* this will mean that our required Kubernetes version will now be 1.11+,
I think this is acceptable now it has penetration across cloud providers, but
feedback appreciated.

Also took the opportunity to upgrade logrus, errors, testify as well.

Gopkg.toml

@@ -18,31 +18,43 @@
 
 [[constraint]]
   name = "github.com/sirupsen/logrus"
-  version = "1.0.3"
+  version = "1.2.0"
 
 [[constraint]]
   name = "github.com/spf13/viper"
-  version = "1.1.0"
+  version = "1.3.1"
 
 [[constraint]]
   name = "k8s.io/client-go"
-  version = "7.0.0"
+  version = "8.0.0"
 
 [[constraint]]
   name = "k8s.io/apiextensions-apiserver"
-  version = "kubernetes-1.10.4"
+  version = "kubernetes-1.11.5"
 
 [[constraint]]
   name = "k8s.io/apimachinery"
-  version = "kubernetes-1.10.4"
+  version = "kubernetes-1.11.5"
 
 [[constraint]]
   name = "k8s.io/api"
-  version = "kubernetes-1.10.4"
+  version = "kubernetes-1.11.5"
+
+#
+# client-go dependencies
+#
+
+[[override]]
+  name = "github.com/json-iterator/go"
+  version = "1.1.5"
+
+#
+# / client-go dependencies
+#
 
 [[constraint]]
   name = "github.com/stretchr/testify"
-  version = "1.1.4"
+  version = "1.2.2"
 
 [[constraint]]
   name = "google.golang.org/grpc"

README.md

@@ -22,7 +22,7 @@ For more details on why this project was written, read the
 [announcement blog post](https://cloudplatform.googleblog.com/2018/03/introducing-Agones-open-source-multiplayer-dedicated-game-server-hosting-built-on-Kubernetes.html).
 
 ## Requirements
-- Kubernetes cluster version 1.9+
+- Kubernetes cluster version 1.11+
     - [Minikube](https://github.com/kubernetes/minikube), [Google Kubernetes Engine](https://cloud.google.com/kubernetes-engine/) and [Azure Kubernetes Service](https://azure.microsoft.com/en-us/services/kubernetes-service/) have been tested
     - If you are creating and managing your own Kubernetes cluster, the
     [MutatingAdmissionWebhook](https://kubernetes.io/docs/admin/admission-controllers/#mutatingadmissionwebhook-beta-in-19), and

build/README.md

@@ -224,8 +224,6 @@ This will setup a [Minikube](https://github.com/kubernetes/minikube) cluster, ru
 Because Minikube runs on a virtualisation layer on the host, some of the standard build and development Make targets
 need to be replaced by Minikube specific targets.
 
-> We recommend installing version [0.29.0 of minikube](https://github.com/kubernetes/minikube/releases/tag/v0.29.0).
-
 First, [install Minikube](https://github.com/kubernetes/minikube#installation), which may also require you to install
 a virtualisation solution, such as [VirtualBox](https://www.virtualbox.org) as well.
 Check the [Building on Different Platforms](#building-on-different-platforms) above for details on what virtualisation 

build/build-image/Dockerfile

@@ -64,8 +64,8 @@ ENV PATH /usr/local/go/bin:/go/bin:/opt/google-cloud-sdk/bin:$PATH
 # RUN gcloud components update
 RUN gcloud components update
 
-# install kubectl without gcloud as we want the last version
-ENV KUBECTL_VER 1.10.0
+# overwrite kubectl as we want a specific version
+ENV KUBECTL_VER 1.11.5
 RUN curl -LO https://storage.googleapis.com/kubernetes-release/release/v${KUBECTL_VER}/bin/linux/amd64/kubectl && \
     chmod go+rx ./kubectl && \
     mv ./kubectl /usr/local/bin/kubectl
@@ -107,7 +107,7 @@ RUN curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.s
 
 # install the release branch of the code generator tools
 RUN mkdir -p /go/src && cd /go/src && mkdir -p k8s.io && cd k8s.io && \
-    git clone -b kubernetes-1.10.5 --depth=3 https://github.com/kubernetes/code-generator.git
+    git clone -b kubernetes-1.11.5 --depth=3 https://github.com/kubernetes/code-generator.git
 
 # make sure we keep the path to go
 RUN echo "export PATH=/usr/local/go/bin:/go/bin/:\$PATH" >> /root/.bashrc

build/e2e-image/Dockerfile

@@ -14,7 +14,7 @@ RUN wget -q https://redirector.gvt1.com/edgedl/go/go${GO_VERSION}.linux-amd64.ta
 ENV PATH /usr/local/go/bin:/go/bin:$PATH
 
 # install kubectl without gcloud as we want the last version
-ENV KUBECTL_VER 1.10.0
+ENV KUBECTL_VER 1.11.5
 RUN curl -LO https://storage.googleapis.com/kubernetes-release/release/v${KUBECTL_VER}/bin/linux/amd64/kubectl && \
     chmod go+rx ./kubectl && \
     mv ./kubectl /usr/local/bin/kubectl

build/gke-test-cluster/cluster-e2e.yml

@@ -19,7 +19,7 @@ resources:
     cluster:
       name: e2e-test-cluster
       description: End to end tests cluster for Agones
-      initialClusterVersion: "1.10"
+      initialClusterVersion: "1.11"
       nodePools:
         - name: "default"
           initialNodeCount: 4