add deployment files for rook kubernetes

Author: Crapworks

README.md

@@ -3,6 +3,7 @@ ceph-dash - a free ceph dashboard / monitoring api
 
 - [ceph-dash - a free ceph dashboard / monitoring api](#user-content-ceph-dash---a-free-ceph-dashboard--monitoring-api)
 	- [Newest Feature](#user-content-newest-feature)
+		- [Rook on Kubernetes](#user-content-root-on-kubernetes)
 		- [Docker Container](#user-content-docker-container)
 		- [InfluxDB support](#user-content-influxdb-support)
 		- [Old content warning](#user-content-old-content-warning)
@@ -28,6 +29,10 @@ You can find a blog entry regarding monitoring a Ceph cluster with ceph-dash on
 Newest Feature
 --------------
 
+### Root on Kubernetes
+
+I recently played around with [Rook](https://rook.io/) on [Kubernetes](https://kubernetes.io/). This was so far my fastest Ceph cluster to setup. Since Rook provides some secrets and config maps already, I made the docker container for Ceph-dash compatible with their format. I also added Kubernetes deployment files in the contrib folder (tested on [GKE](https://cloud.google.com/kubernetes-engine), but should work on any Kubernetes cluster). No need to configure anything, they should just work out of the box.
+
 ### Docker container
 
 Since everybody recently seems to be hyped as hell about the container stuff, I've decided that I can contribute to that with a ready-to-use docker container. Available at [Docker Hub](https://hub.docker.com/r/crapworks/ceph-dash/) you can pull the ceph-dash container and configure it via the following environment variables:

contrib/rook/ceph-dash-ingress.yaml

@@ -0,0 +1,9 @@
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: ceph-dash
+  namespace: rook-ceph
+spec:
+  backend:
+    serviceName: ceph-dash
+    servicePort: 5000

contrib/rook/ceph-dash-service.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: ceph-dash
+  namespace: rook-ceph
+spec:
+  type: NodePort
+  selector:
+    app: ceph-dash
+  ports:
+  - protocol: TCP
+    port: 5000
+    targetPort: 5000

contrib/rook/ceph-dash.yaml

@@ -0,0 +1,40 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ceph-dash
+  namespace: rook-ceph
+  labels:
+    app: ceph-dash
+spec:
+  selector:
+    matchLabels:
+      app: ceph-dash
+  template:
+    metadata:
+      labels:
+        app: ceph-dash
+    spec:
+      containers:
+      - image: crapworks/ceph-dash:v1.5
+        name: ceph-dash
+        ports:
+        - containerPort: 5000
+          protocol: TCP
+        resources:
+          requests:
+            memory: "300Mi"
+            cpu: "100m"
+          limits:
+            memory: "500Mi"
+            cpu: "200m"
+        env:
+        - name: CEPHMONS
+          valueFrom:
+            configMapKeyRef:
+              name: rook-ceph-mon-endpoints
+              key: data
+        - name: KEYRING
+          valueFrom:
+            secretKeyRef:
+              name: rook-ceph-mons-keyring
+              key: keyring