typhoon/aws/container-linux/kubernetes/versions.tf

# Terraform version and plugin versions

terraform {
  required_version = "~> 0.12.6"
  required_providers {
    aws      = "~> 2.23"
    ct       = "~> 0.4"
    template = "~> 2.1"
    null     = "~> 2.1"
  }
}
Migrate AWS module Terraform v0.11 to v0.12 * Replace v0.11 bracket type hints with Terraform v0.12 list expressions * Use expression syntax instead of interpolated strings, where suggested * Update AWS tutorial and worker pools documentation * Define Terraform and plugin version requirements in versions.tf * Require aws ~> 2.7 to support Terraform v0.12 * Require ct ~> 0.3.2 to support Terraform v0.12 2019-05-27 20:42:48 -07:00			`# Terraform version and plugin versions`

			`terraform {`
Adopt Terraform v0.12 templatefile function * Update terraform-render-bootstrap module to adopt the Terrform v0.12 templatefile function feature to replace the use of terraform-provider-template's `template_dir` * Require Terraform v0.12.6+ which adds `for_each` Background: * `template_dir` was added to `terraform-provider-template` to add support for template directory rendering in CoreOS Tectonic Kubernetes distribution (~2017) * Terraform v0.12 introduced a native `templatefile` function and v0.12.6 introduced native `for_each` support (July 2019) that makes it possible to replace `template_dir` usage 2019-11-13 14:09:34 -08:00			`required_version = "~> 0.12.6"`
Migrate AWS module Terraform v0.11 to v0.12 * Replace v0.11 bracket type hints with Terraform v0.12 list expressions * Use expression syntax instead of interpolated strings, where suggested * Update AWS tutorial and worker pools documentation * Define Terraform and plugin version requirements in versions.tf * Require aws ~> 2.7 to support Terraform v0.12 * Require ct ~> 0.3.2 to support Terraform v0.12 2019-05-27 20:42:48 -07:00			`required_providers {`
Enable AWS root block device encryption by default * terraform-provider-aws v2.23.0 allows AWS root block devices to enable encryption by default. * Require updating terraform-provider-aws to v2.23.0 or higher * Enable root EBS device encryption by default for controller instances and worker instances in auto-scaling groups For comparison: * Google Cloud persistent disks have been encrypted by default for years * Azure managed disk encryption is not ready yet (#486) 2019-08-07 20:56:55 -07:00			`aws = "~> 2.23"`
Use strict mode for Container Linux Configs * Enable terraform-provider-ct `strict` mode for parsing Container Linux Configs and snippets * Fix Container Linux Config systemd unit syntax `enable` (old) to `enabled` * Align with Fedora CoreOS which uses strict mode already 2020-06-09 22:38:32 -07:00			`ct = "~> 0.4"`
Migrate AWS module Terraform v0.11 to v0.12 * Replace v0.11 bracket type hints with Terraform v0.12 list expressions * Use expression syntax instead of interpolated strings, where suggested * Update AWS tutorial and worker pools documentation * Define Terraform and plugin version requirements in versions.tf * Require aws ~> 2.7 to support Terraform v0.12 * Require ct ~> 0.3.2 to support Terraform v0.12 2019-05-27 20:42:48 -07:00			`template = "~> 2.1"`
			`null = "~> 2.1"`
			`}`
			`}`