add rpm option for download

Signed-off-by: matttrach <matttrach@gmail.com>

.gitignore

@@ -7,8 +7,8 @@ override.*
 !terraform.md
 rke2*
 *.gz
-examples/*/installer.sh
-examples/*/sha256sum.txt
+examples/*/install.*
+examples/*/sha256sum*
 examples/*/tmp
 examples/*/rke2
 id_ed25519_*

examples/basic/main.tf

@@ -1,4 +1,4 @@
-module "TestBasic" {
+module "download_latest" {
   source  = "../../"
   release = "latest"
 }

examples/basic/output.tf

@@ -1,9 +1,9 @@
 output "tag" {
-  value = module.TestBasic.tag
+  value = module.download_latest.tag
 }
 output "path" {
-  value = module.TestBasic.path
+  value = module.download_latest.path
 }
 output "files" {
-  value = module.TestBasic.files
+  value = module.download_latest.files
 }

examples/rpm/main.tf

@@ -0,0 +1,13 @@
+locals {
+  version = var.release
+  path    = var.path
+}
+module "download_rpm" {
+  source  = "../../"
+  release = local.version
+  path    = local.path
+  rpm     = true
+  # default: os         = "rhel"
+  # default: os_version = "8"
+  # default: arch       = "amd64"
+}

examples/rpm/output.tf

@@ -0,0 +1,9 @@
+output "tag" {
+  value = module.download_rpm.tag
+}
+output "path" {
+  value = module.download_rpm.path
+}
+output "files" {
+  value = module.download_rpm.files
+}

examples/rpm/variables.tf

@@ -0,0 +1,12 @@
+variable "release" {
+  type        = string
+  description = <<-EOT
+    The value of the git tag associated with the release to find.
+  EOT
+}
+variable "path" {
+  type        = string
+  description = <<-EOT
+    The path to download the files to.
+  EOT
+}

examples/rpm/versions.tf

@@ -0,0 +1,13 @@
+terraform {
+  required_version = ">= 1.2.0, < 1.6"
+  required_providers {
+    github = {
+      source  = "integrations/github"
+      version = ">= 5.32"
+    }
+    local = {
+      source  = "hashicorp/local"
+      version = ">= 2.4"
+    }
+  }
+}

examples/selected/main.tf

@@ -2,7 +2,7 @@ locals {
   version = var.release
   path    = var.path
 }
-module "TestSelected" {
+module "download_selected" {
   source  = "../../"
   release = local.version
   path    = local.path

examples/selected/output.tf

@@ -1,9 +1,9 @@
 output "tag" {
-  value = module.TestSelected.tag
+  value = module.download_selected.tag
 }
 output "path" {
-  value = module.TestSelected.path
+  value = module.download_selected.path
 }
 output "files" {
-  value = module.TestSelected.files
+  value = module.download_selected.files
 }

main.tf

@@ -1,18 +1,33 @@
 locals {
+  system          = var.system
+  rpm             = var.rpm
   release         = var.release
   latest          = (var.release == "latest" ? true : false)
+  sem             = (local.latest ? [] : regex("v([0-9]+)\\.([0-9]+)\\.([0-9]+)", var.release)) # extracts the semver from the release string
+  kube            = (local.latest ? "" : "${local.sem[0]}.${local.sem[1]}")                     # build the major.minor version of kubernetes
   arch            = var.arch
-  system      = var.system
+  os              = (local.rpm ? var.os : "")         # should be rhel, but should only be used when downloading RPMs
+  os_version      = (local.rpm ? var.os_version : "") # should only be used when downloading RPMs
   install_url     = "https://raw.githubusercontent.com/rancher/rke2/master/install.sh"
-  files = toset([
-    "rke2-images.${local.system}-${local.arch}.tar.gz",
-    "rke2.${local.system}-${local.arch}.tar.gz",
-    "sha256sum-${local.arch}.txt",
-    "install.sh",
-  ])
+  rpm_os          = (local.os == "rhel" ? "centos" : local.os)
+  rpm_arch        = (local.arch == "amd64" ? "x86_64" : local.arch)
+  rpm_url         = "https://rpm.rancher.io/rke2/stable/${local.kube}/${local.os}/${local.os_version}"
+  rpm_release     = (local.latest ? "" : "${local.sem[0]}.${local.sem[1]}.${local.sem[2]}~rke2r1-0.el${local.os_version}.${local.arch}")
   selected_assets = (can(data.github_release.selected[0].assets) ? { for a in data.github_release.selected[0].assets : a.name => a.browser_download_url } : {})
   latest_assets   = (can(data.github_release.latest.assets) ? { for a in data.github_release.latest.assets : a.name => a.browser_download_url } : {})
   assets          = (local.latest ? local.latest_assets : local.selected_assets)
+  base_files = {
+    "rke2-images.${local.system}-${local.arch}.tar.gz" = local.assets["rke2-images.${local.system}-${local.arch}.tar.gz"],
+    "rke2.${local.system}-${local.arch}.tar.gz"        = local.assets["rke2.${local.system}-${local.arch}.tar.gz"],
+    "sha256sum-${local.arch}.txt"                      = local.assets["sha256sum-${local.arch}.txt"],
+    "install.sh"                                       = local.install_url,
+  }
+  files = (local.rpm ? merge(local.base_files, {
+    "rke2-common.rpm"  = "${local.rpm_url}/${local.rpm_arch}/rke2-common-${local.rpm_release}.rpm",
+    "rke2-server.rpm"  = "${local.rpm_url}/${local.rpm_arch}/rke2-server-${local.rpm_release}.rpm",
+    "rke2-agent.rpm"   = "${local.rpm_url}/${local.rpm_arch}/rke2-agent-${local.rpm_release}.rpm",
+    "rke2-selinux.rpm" = "${local.rpm_url}/noarch/rke2-selinux-0.15-1.el${local.os_version}.noarch.rpm",
+  }) : local.base_files)
   path = abspath(var.path)
 }
 
@@ -52,10 +67,10 @@ resource "null_resource" "download" {
     data.github_release.latest,
     local_file.download_dir,
   ]
-  for_each = toset(local.files)
+  for_each = local.files
   provisioner "local-exec" {
     command = <<-EOT
-      curl -L -s -o ${abspath("${local.path}/${each.key}")} ${lookup(local.assets, each.key, local.install_url)}
+      curl -L -s -o ${abspath("${local.path}/${each.key}")} ${each.value}
     EOT
   }
 }

tests/rpm_test.go

@@ -0,0 +1,22 @@
+package test
+
+import (
+	"testing"
+
+	"github.com/gruntwork-io/terratest/modules/terraform"
+)
+
+func TestRpm(t *testing.T) {
+	t.Parallel()
+	directory := "rpm"
+	release := getLatestRelease(t, "rancher", "rke2")
+	terraformVars := map[string]interface{}{
+		"release": release,
+		"path":    "./rke2",
+	}
+	terraformOptions := setup(t, directory, terraformVars)
+
+	defer teardown(t, directory)
+	defer terraform.Destroy(t, terraformOptions)
+	terraform.InitAndApply(t, terraformOptions)
+}

variables.tf

@@ -3,6 +3,7 @@ variable "release" {
   description = <<-EOT
     The value of the git tag associated with the release to find.
     Specify "latest" to find the latest release (default).
+    When downloading RPMs, this must be a specific release, not "latest".
   EOT
   default     = "latest"
 }
@@ -17,11 +18,30 @@ variable "arch" {
 variable "system" {
   type        = string
   description = <<-EOT
-    The OS of the system to download for.
+    The kernel of the system to download for.
     Valid values are currently just linux (the default).
   EOT
   default     = "linux"
 }
+variable "os" {
+  type        = string
+  description = <<-EOT
+    The OS to download RPMs for.
+    This is only used for RPM downloads.
+    This is ignored when rpm is false.
+  EOT
+  default     = "rhel"
+}
+variable "os_version" {
+  type        = string
+  description = <<-EOT
+    The version of RHEL to download RPMs for.
+    This is only used for RPM downloads.
+    This is ignored when rpm is false.
+  EOT
+  default     = "8"
+}
+
 variable "path" {
   type        = string
   description = <<-EOT
@@ -30,3 +50,14 @@ variable "path" {
   EOT
   default     = "./rke2"
 }
+variable "rpm" {
+  type        = bool
+  description = <<-EOT
+    Whether or not to download the RPMs.
+    Defaults to false.
+    This option requires that the system is linux (specifically RHEL based) and the architecture is amd64(x86_64).
+    This option requires the computer running terraform to have curl installed.
+    When using this option, the "release" variable must be set to a specific release, not "latest".
+  EOT
+  default     = false
+}