Create a provider to use Azure Batch (#133)

* Started work on provider

* WIP Adding batch provider

* Working basic call into pool client. Need to parameterize the baseurl

* Fixed job creation by manipulating the content-type

* WIP Kicking off containers. Dirty

* [wip] More meat around scheduling simple containers.

* Working on basic task wrapper to co-schedule pods

* WIP on task wrapper

* WIP

* Working pod minimal wrapper for batch

* Integrate pod template code into provider

* Cleaning up

* Move to docker without gpu

* WIP batch integration

* partially working

* Working logs

* Tidy code

* WIP: Testing and readme

* Added readme and terraform deployment for GPU Azure Batch pool.

* Update to enable low priority nodes for gpu

* Fix log formatting bug. Return node logs when container not yet started

* Moved to golang v1.10

* Fix cri test

* Fix up minor docs Issue. Add provider to readme. Add var for vk image.

providers/azurebatch/deployment/examplegpupod.yaml

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: cuda-vector-add
+  labels:
+    app: examplegpupod
+spec:
+  restartPolicy: OnFailure
+  containers:
+    - name: cuda-vector-add
+      # https://github.com/kubernetes/kubernetes/blob/v1.7.11/test/images/nvidia-cuda/Dockerfile
+      image: "k8s.gcr.io/cuda-vector-add:v0.1"
+      resources:
+        limits:
+          nvidia.com/gpu: 1 # requesting 1 GPU
+  nodeName: virtual-kubelet
+  tolerations:
+  - key: azure.com/batch
+    effect: NoSchedule