Setup sandbox for GCP proxy

1) Clean up alpha config to only allow alpha proxy, removing test proxy client id.
2) Add sandbox service account client id to sandbox config.
3) Add sandbox config to nomulus and proxy, remove TEST environment, which is not being used anymore. (Test now uses LOCAL.)
4) Add sandbox kubenetes config

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193400909

java/google/registry/proxy/kubernetes/proxy-deployment-sandbox-canary.yaml

@@ -0,0 +1,65 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  namespace: default
+  name: proxy-deployment-canary
+  labels:
+    app: proxy-canary
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: proxy-canary
+  template:
+    metadata:
+      labels:
+        app: proxy-canary
+    spec:
+      containers:
+      - name: proxy-canary
+        image: gcr.io/GCP_PROJECT/IMAGE_NAME:bazel
+        ports:
+        - containerPort: 30000
+          name: health-check
+        - containerPort: 30001
+          name: whois
+        - containerPort: 30002
+          name: epp
+        readinessProbe:
+          tcpSocket:
+            port: health-check
+          initialDelaySeconds: 5
+          periodSeconds: 10
+        livenessProbe:
+          tcpSocket:
+            port: health-check
+          initialDelaySeconds: 15
+          periodSeconds: 20
+        imagePullPolicy: Always
+        args: ["--env", "sandbox_canary"]
+        env:
+        - name: POD_ID
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        - name: NAMESPACE_ID
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        - name: CONTAINER_NAME
+          value: proxy-canary
+---
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  namespace: default
+  name: proxy-autoscale-canary
+  labels:
+    app: proxy-canary
+spec:
+  scaleTargetRef:
+    apiVersion: extensions/v1beta1
+    kind: Deployment
+    name: proxy-deployment-canary
+  maxReplicas: 5
+  minReplicas: 1

java/google/registry/proxy/kubernetes/proxy-deployment-sandbox.yaml

@@ -0,0 +1,65 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  namespace: default
+  name: proxy-deployment
+  labels:
+    app: proxy
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: proxy
+  template:
+    metadata:
+      labels:
+        app: proxy
+    spec:
+      containers:
+      - name: proxy
+        image: gcr.io/GCP_PROJECT/IMAGE_NAME:bazel
+        ports:
+        - containerPort: 30000
+          name: health-check
+        - containerPort: 30001
+          name: whois
+        - containerPort: 30002
+          name: epp
+        readinessProbe:
+          tcpSocket:
+            port: health-check
+          initialDelaySeconds: 5
+          periodSeconds: 10
+        livenessProbe:
+          tcpSocket:
+            port: health-check
+          initialDelaySeconds: 15
+          periodSeconds: 20
+        imagePullPolicy: Always
+        args: ["--env", "sandbox"]
+        env:
+        - name: POD_ID
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        - name: NAMESPACE_ID
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        - name: CONTAINER_NAME
+          value: proxy
+---
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  namespace: default
+  name: proxy-autoscale
+  labels:
+    app: proxy
+spec:
+  scaleTargetRef:
+    apiVersion: extensions/v1beta1
+    kind: Deployment
+    name: proxy-deployment
+  maxReplicas: 5
+  minReplicas: 1

java/google/registry/proxy/kubernetes/proxy-service-canary.yaml

@@ -0,0 +1,25 @@
+kind: Service
+apiVersion: v1
+metadata:
+  namespace: default
+  name: proxy-service-canary
+spec:
+  selector:
+    app: proxy-canary
+  ports:
+  - protocol: TCP
+    port: 30000
+    nodePort: 31000
+    targetPort: health-check
+    name: health-check
+  - protocol: TCP
+    port: 30001
+    nodePort: 31001
+    targetPort: whois
+    name: whois
+  - protocol: TCP
+    port: 30002
+    nodePort: 31002
+    targetPort: epp
+    name: epp
+  type: NodePort