Consul Connect Demo

An incredibly modified version of https://github.com/norhe/cc_demo

This repo demonstrates using Consul Connect. There are a number of moving parts.

First, a Consul cluster is deployed. Then, a set of client nodes are deployed. All client nodes have Consul running.

There are four pieces of the application. A mongo database to store records, a set of APIs called Product and Listing, and a web client that renders results. All pieces communicate with one another using the built in Consul Connect proxies.

Packer

The packer configuration used to build the machine images is in the packer directory. All images except the one built with Vault Enterprise are currently public. Use make if you want to build the AWS AMIs

Terraform

AWS

You will need AWS credentials, set your credentials appropriately https://www.terraform.io/docs/providers/aws/index.html

• Change to the terraform/aws directory
• Copy terraform.auto.tfvars.example to terraform.auto.tfvars and update appropriately
  • mode = "noconnect" deploys with Consul service discovery but without Connect
  • mode = "connect" deploys with Consul service discovery and Connect
• Do the normal terraform init, terraform plan, terraform apply dance

Note: It takes a couple minutes for everything to spin up and be reachable after Terraform is done, until then the web_client will show some errors connecting to backend services. Just wait.