Add mini k8s deployment (apache#102)

README.md

@@ -57,9 +57,10 @@ Running in Docker
 
 Running in Kubernetes
 - `./setup.sh` - To run Polaris as a mini-deployment locally. This will create two pods that bind themselves to port `8181`.
-- `kubectl get pods` - To check the status of the pods.
-- `kubectl get deployment` - To check the status of the deployment.
-- `kubectl describe deployment polaris-deployment` - To troubleshoot if things aren't working as expected.
+- `kubectl port-forward svc/polaris-service -n polaris 8181:8181` - To create a secure connection between a local machine and a pod within the cluster.
+- `kubectl get pods -n polaris` - To check the status of the pods.
+- `kubectl get deployment -n polaris` - To check the status of the deployment.
+- `kubectl describe deployment polaris-deployment -n polaris` - To troubleshoot if things aren't working as expected.
 
 Building docs
 - Docs are generated using [Redocly](https://redocly.com/docs/cli/installation). To regenerate them, run the following

k8/deployment.yaml

@@ -0,0 +1,37 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name:  polaris
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: polaris-deployment
+  namespace: polaris
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: polaris
+  template:
+    metadata:
+      labels:
+        app: polaris
+    spec:
+      containers:
+      - name: polaris
+        image: localhost:5001/polaris:latest
+        ports:
+        - containerPort: 8181
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: polaris-service
+  namespace: polaris
+spec:
+  selector:
+    app: polaris
+  ports:
+  - port: 8181
+    targetPort: 8181