Add kubernetes examples + better document methods of applying authentication

Closes #33

examples/traefik-v1.7/kubernetes/advanced-single-pod/whoami/deployment.yaml

@@ -0,0 +1,19 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: whoami
+  labels:
+    app: whoami
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: whoami
+  template:
+    metadata:
+      labels:
+        app: whoami
+    spec:
+      containers:
+      - image: containous/whoami
+        name: whoami

examples/traefik-v1.7/kubernetes/advanced-single-pod/whoami/ingress.yaml

@@ -0,0 +1,16 @@
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: whoami
+  labels:
+    app: whoami
+  annotations:
+    kubernetes.io/ingress.class: traefik
+spec:
+  rules:
+  - host: whoami.example.com
+    http:
+      paths:
+      - backend:
+          serviceName: whoami
+          servicePort: http

examples/traefik-v1.7/kubernetes/advanced-single-pod/whoami/kustomization.yaml

@@ -0,0 +1,7 @@
+commonLabels:
+  app: whoami
+
+resources:
+- deployment.yaml
+- service.yaml
+- ingress.yaml

examples/traefik-v1.7/kubernetes/advanced-single-pod/whoami/service.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: whoami
+  labels:
+    app: whoami
+spec:
+  type: ClusterIP
+  ports:
+  - name: http
+    port: 80
+  selector:
+    app: whoami
+