Installing a Consul demo application

To explore the service mesh capabilities of Consul through a Kubernetes environment, we will install a demo application that is available from Hashicorp. This demo uses two simple services: a counting service and a frontend web UI service (connects to the counting service to show the results). Let's get started:

1. Let's take a look at the counting pod definition, which shows counting and a counting-init container:

# Counting pod

apiVersion: v1
kind: Pod
metadata:
  name: counting
  annotations:
    "consul.hashicorp.com/connect-inject": "true"
spec:
  containers:
  - name: counting
    image: hashicorp/counting-service:0.0.2
    ports:
    - containerPort: 9001
      name: http
  initContainers:
  - name: counting-init
    image: hashicorp/counting-init:0.0.9
    env:
    - name: POD_IP
      valueFrom:
        fieldRef:
         ...