Add Kubernetes manifests for routing engines

Deployments and Services for osrm-foot (256-512MB), osrm-bicycle
(256-512MB), and OTP (1-2GB). Includes PVCs for data storage and an
init Job to download and pre-process Greater London OSM data.

k8s/otp.yaml

@@ -0,0 +1,53 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: otp
+  labels:
+    app: otp
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: otp
+  template:
+    metadata:
+      labels:
+        app: otp
+    spec:
+      containers:
+        - name: otp
+          image: opentripplanner/opentripplanner:2.6.0
+          command: ["--load", "--serve"]
+          ports:
+            - containerPort: 8080
+          volumeMounts:
+            - name: otp-data
+              mountPath: /var/opentripplanner
+          resources:
+            requests:
+              memory: "1Gi"
+              cpu: "250m"
+            limits:
+              memory: "2Gi"
+              cpu: "1000m"
+          readinessProbe:
+            httpGet:
+              path: /otp/actuators/health
+              port: 8080
+            initialDelaySeconds: 120
+            periodSeconds: 30
+      volumes:
+        - name: otp-data
+          persistentVolumeClaim:
+            claimName: otp-data-pvc
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: otp
+spec:
+  selector:
+    app: otp
+  ports:
+    - port: 8080
+      targetPort: 8080