Password Example

This is a very basic example to deploy microservices. It consists of 4 services:

• A frontend asking for a password and showing the results from the other services (server)
• A password-checker that calculates the password strengths (password-checker)
• A service that checks against a list of known passwords (known-passwords)
• A service that uses a redis backend to check if the given password is in the last 10 checked passwords (password-dedup).

Installation

You need docker, terraform and a kubernetes cluster.

1. Adapt deployment/k8s.tf and change

   provider "kubernetes" {
     config_path    = "~/.kube/config"
     config_context = "docker-desktop"  # <-- ADAPT HERE
   }
   

   the value for config_context to your Kubernetes context.

2. Run terraform init to initialize module and provider configuration.

3. Run terraform apply and confirm with yes. This will do the following:

   • Build the docker images
   • Deploy the services and deployments to K8s

Usage

Navigate to your K8s installation. The frontend service is exposed on port 8000. For a local installation, head to [http://localhost:8000].

Uninstall

Run terraform destroy to remove all resources from K8s and the images.

Easy testing:

The setup can be tested without K8s using docker-compose up --build from the main directory.