In this lab, you are being asked to create a dynamic admission controller with Terraform that will use a validating admission webhook. You will create and deploy a validating webhook, along with the webhook configuration. Start by creating the webhook Docker image from the provided code. You will then update the webhook deployment Terraform code with the image, and deploy the validating webhook, as well as the webhook configuration code, to finish up the deployment.
Learning Objectives
Successfully complete this lab by achieving the following learning objectives:
- Lab Setup
Move to the
validating-admission-webhookdirectory.Create an Access Key in the AWS console. (You need to copy the Access Key ID and Secret Key somewhere safe and accessible for the next step).
Make the
lab-setup.shscript executable.Run the
lab-setup.shscript.Note: This script will run for about 10-15 minutes.
- Create the Webhook Docker Image
Note: Make sure you have set up your Docker Hub account before doing this objective.
Move into the
validating-web hookdirectory.Log in to Docker Hub from the terminal.
Update the
Makefilewith your Docker Hub username.Build the webhook.
Note: This can take between 5-10 minutes.
Build the Docker image.
Push the Docker image to Docker Hub.
Deploy the certs.
- Deploy the Validating Webhook Configuration and Webhook
Update the deployment configuration file with your Docker Hub username.
Initialize the working directory.
Apply the configuration.
Confirm the validating webhook is up and available.
