Understanding the Kubernetes Provider for Terraform

In this talk, Taylor Dolezal (Developer Advocate at HashiCorp) and I look at how to use Terraform to create Kubernetes Namespaces, Deployments and Services using Terraform.

This version of the presentation was given at an internal event in August 2020.

Transcript

1. Copyright © 2020 HashiCorp Understanding the Kubernetes Provider For Terraform
2. Kerim Satirli (He/Him) Developer Advocate at HashiCorp
3. @ksatirli on GitHub and Twitter Developer Advocate at HashiCorp
4. Taylor Dolezal (He/Him) Developer Advocate at HashiCorp
5. @onlydole on GitHub and Twitter Developer Advocate at HashiCorp
6. Introduction to Terraform
7. Infrastructure as Code ▪ executable documentation ▪ enables collaboration ▪ safe and predictable
8. Terraform 135+ Official Providers AWS, GCP, Datadog, etc. 200+ Community Providers 1Password, Stripe, Unifi, etc.
9. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:8080" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
10. HashiCorp Configuration Language CODE EDITOR service "http" "web_proxy" { listen_addr = "127.0.0.1:${var.port}" process "server" { command = ["proxy-app", "server"] } } variable "port" { description = "Port for web_proxy" default = 8080 }
11. Kubernetes Namespaces everything has a home Services exposes Deployments Deployments declarative updates Nodes machines
15. Creating a Namespace CODE EDITOR resource "kubernetes_namespace" "beacon" { name = "beacon" metadata { name = "beacon" } }
16. Creating a Deployment CODE EDITOR resource "kubernetes_deployment" "beacon" { metadata { name = "beacon" namespace = kubernetes_namespace.beacon.id spec { container { image = "onlydole/beacon:1.19.1" name = "beacon" } } }
17. Creating a Service CODE EDITOR resource "kubernetes_service" "beacon" { metadata { name = "beacon" namespace = kubernetes_namespace.beacon.id spec { selector { app = kubernetes_deployment.beacon.metadata.0.labels.app } } ...
18. Creating a Service CODE EDITOR ... port { port = 8080 target_port = 80 } type = "LoadBalancer" }
19. Command: terraform apply TERMINAL > terraform apply "kubernetes.tfplan" Apply complete! Resources: 3 added, 0 changed, 0 destroyed.
20. Beacon your.app.url:8080
21. Review ▪ Terraform and IaC ▪ Kubernetes Concepts ▪ Kubernetes Resources
22. Thank You kerim@hashicorp.com and tdolezal@hashicorp.com