Provisioning Kubernetes cluster using terraform. In this article, I am going describe the requirements to provision a Kubernetes cluster on OCI using terraform and deploying an application on Kubernetes cluster
Oracle Cloud Infrastructure
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Container Engine for Kubernetes (OKE)
Oracle Cloud Infrastructure Container Engine for Kubernetes is a fully-managed, scalable, and highly available service that you can use to deploy your containerized applications to the cloud. Use Container Engine for Kubernetes (OKE) when your development team wants to reliably build, deploy, and manage cloud-native applications
Terraform
Terraform is an infrastructure as code (IaC) tool that allows you to build, change, and version infrastructure safely and efficiently. This includes low-level components such as compute instances, storage, and networking, as well as high-level components such as DNS entries, SaaS features, etc.
PART 1
OCI Terraform Module https://github.com/oracle-terraform-modules/terraform-oci-oke
For creating a OKE cluster what you need
- A VCN, an Internet Gateway, a NAT gateway for private worker node deployment
- worker subnets( public/private)with a set of security rules
- load balancer subnets with its security rules
Step 1: Clone the terraform from git and cd terraform-oci-oke folder
Step 2: cp terraform.tfvars.example terraform.tfvars
Step 3: Finish Prerequisites or Check my Video(coming soon..)
Create a provider.tf file in root add 2 providers
Provider 1 -home regions
Provider 2- the current region where you want to provision your cluster.
step 4: Run terraform init command in the root folder
Step 4: Modify terraform.tfvars and add the fields copied in the prerequisites
For example:
Step 5: Run terraform plan command in the root folder to check any actions are required.
Step 6: Run terraform apply command in the root folder. This would create your OKE Cluster
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