terraform-kops

Overview

• Using terraform to provision the VPC and RDS instance.
• Using kops to provision the k8s cluster in the same VPC.
• Using helm to deploy the wordpress setup.

Steps

• To create the setup, you should provide a Valid DNS name(sub-domain), S3 bucket, Database name, username and password for wordpress.

  setup.sh <create> <s3-bucket> <dns-name-for-k8s-cluster> <database-name> <database-username> <database-password>

• To remove the setup,

  setup.sh <remove> <s3-bucket> <dns-name-for-k8s-cluster>

prerequisites

• It requires AWS_SECRET_ACCESS_KEY and AWS_ACCESS_KEY_ID ENVIRONMENT variables.
• Before run the setup script, please install kubectl, kops-v1.8.0, terraform and helm-v2.2.0 binaries.
• By default, kops uses ~/.ssh/id_rsa.pub to create ec2 key pair for k8s nodes.

Notes

• For production, we should use private network and custom security groups for k8s nodes, persistent volumes or S3 for wordpress container and remote backend for terraform.