Merge pull request #1436 from gmautner/master

Allows specifying k3s version

Author: mysticaltech

init.tf

@@ -128,6 +128,7 @@ resource "null_resource" "kustomization" {
     # Redeploy when versions of addons need to be updated
     versions = join("\n", [
       coalesce(var.initial_k3s_channel, "N/A"),
+      coalesce(var.install_k3s_version, "N/A"),
       coalesce(var.cluster_autoscaler_version, "N/A"),
       coalesce(var.hetzner_ccm_version, "N/A"),
       coalesce(var.hetzner_csi_version, "N/A"),
@@ -233,6 +234,7 @@ resource "null_resource" "kustomization" {
       "${path.module}/templates/plans.yaml.tpl",
       {
         channel          = var.initial_k3s_channel
+        version          = var.install_k3s_version
         disable_eviction = !var.system_upgrade_enable_eviction
     })
     destination = "/var/post_install/plans.yaml"

kube.tf.example

@@ -590,6 +590,10 @@ module "kube-hetzner" {
   # The default is "v1.29".
   # initial_k3s_channel = "stable"
 
+  # Allows you to specify the k3s version. If defined, supersedes initial_k3s_channel.
+  # See https://github.com/k3s-io/k3s/releases
+  # install_k3s_version = "v1.30.2+k3s2"
+
   # The cluster name, by default "k3s"
   # cluster_name = ""
 

locals.tf

@@ -125,10 +125,18 @@ locals {
   swap_node_label   = ["node.kubernetes.io/server-swap=enabled"]
 
   install_k3s_server = concat(local.common_pre_install_k3s_commands, [
-    "curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_START=true INSTALL_K3S_SKIP_SELINUX_RPM=true INSTALL_K3S_CHANNEL=${var.initial_k3s_channel} INSTALL_K3S_EXEC='server ${var.k3s_exec_server_args}' sh -"
+    var.install_k3s_version == "" ? (
+      "curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_START=true INSTALL_K3S_SKIP_SELINUX_RPM=true INSTALL_K3S_CHANNEL=${var.initial_k3s_channel} INSTALL_K3S_EXEC='server ${var.k3s_exec_server_args}' sh -"
+      ) : (
+      "curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_START=true INSTALL_K3S_SKIP_SELINUX_RPM=true INSTALL_K3S_VERSION=${var.install_k3s_version} INSTALL_K3S_EXEC='server ${var.k3s_exec_server_args}' sh -"
+    )
   ], (var.disable_selinux ? [] : local.apply_k3s_selinux), local.common_post_install_k3s_commands)
   install_k3s_agent = concat(local.common_pre_install_k3s_commands, [
-    "curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_START=true INSTALL_K3S_SKIP_SELINUX_RPM=true INSTALL_K3S_CHANNEL=${var.initial_k3s_channel} INSTALL_K3S_EXEC='agent ${var.k3s_exec_agent_args}' sh -"
+    var.install_k3s_version == "" ? (
+      "curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_START=true INSTALL_K3S_SKIP_SELINUX_RPM=true INSTALL_K3S_CHANNEL=${var.initial_k3s_channel} INSTALL_K3S_EXEC='agent ${var.k3s_exec_agent_args}' sh -"
+      ) : (
+      "curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_START=true INSTALL_K3S_SKIP_SELINUX_RPM=true INSTALL_K3S_VERSION=${var.install_k3s_version} INSTALL_K3S_EXEC='agent ${var.k3s_exec_agent_args}' sh -"
+    )
   ], (var.disable_selinux ? [] : local.apply_k3s_selinux), local.common_post_install_k3s_commands)
 
   control_plane_nodes = merge([

templates/plans.yaml.tpl

@@ -10,7 +10,11 @@ metadata:
     k3s_upgrade: agent
 spec:
   concurrency: 1
+  %{~ if version == "" ~}
   channel: https://update.k3s.io/v1-release/channels/${channel}
+  %{~ else ~}
+  version: ${version}
+  %{~ endif ~}
   serviceAccountName: system-upgrade
   nodeSelector:
     matchExpressions:
@@ -41,7 +45,11 @@ metadata:
     k3s_upgrade: server
 spec:
   concurrency: 1
+  %{~ if version == "" ~}
   channel: https://update.k3s.io/v1-release/channels/${channel}
+  %{~ else ~}
+  version: ${version}
+  %{~ endif ~}
   serviceAccountName: system-upgrade
   nodeSelector:
     matchExpressions:

variables.tf

@@ -545,6 +545,12 @@ variable "initial_k3s_channel" {
   }
 }
 
+variable "install_k3s_version" {
+  type        = string
+  default     = ""
+  description = "Allows you to specify the k3s version (Example: v1.29.6+k3s2). Supersedes initial_k3s_channel."
+}
+
 variable "system_upgrade_enable_eviction" {
   type        = bool
   default     = true