Add ubuntu 24.04 and docs for hcloud (#1481)

* add ubuntu 24.04 and docs for hcloud

this commit does the following:
- add docs for building hcloud snapshots
- add support for ubuntu 24.04

Signed-off-by: kranurag7 <81210977+kranurag7@users.noreply.github.com>

* make json-sort

Signed-off-by: kranurag7 <81210977+kranurag7@users.noreply.github.com>

* Update docs/book/src/capi/providers/hcloud.md

Co-authored-by: Matt Boersma <Matt.Boersma@microsoft.com>

---------

Signed-off-by: kranurag7 <81210977+kranurag7@users.noreply.github.com>
Co-authored-by: Matt Boersma <Matt.Boersma@microsoft.com>

Author: kranurag7

docs/book/src/SUMMARY.md

@@ -9,6 +9,7 @@
   - [CloudStack](./capi/providers/cloudstack.md)
   - [DigitalOcean](./capi/providers/digitalocean.md)
   - [GCP](./capi/providers/gcp.md)
+  - [Hetzner Hcloud](./capi/providers/hcloud.md)
   - [IBM Cloud](./capi/providers/ibmcloud.md)
   - [Nutanix](./capi/providers/nutanix.md)
   - [OpenStack](./capi/providers/openstack.md)

docs/book/src/capi/providers/hcloud.md

@@ -0,0 +1,33 @@
+# Building Images for Hetzner Hcloud
+
+## Prerequisites for Hetzner Hcloud
+
+- A Hetzner account
+- Set the environment variables `HCLOUD_LOCATION` and `HCLOUD_TOKEN` for your hcloud project
+
+## Building Images
+
+The build [prerequisites](../capi.md#prerequisites) for using `image-builder` for
+building hcloud images are managed by running:
+
+```bash
+make deps-hcloud
+```
+
+From the `images/capi` directory, run `make build-hcloud-<OS>` where `<OS>` is the desired operating system. The available choices are listed via `make help`. For example: Use `make build-hcloud-ubuntu-2404` to build an Ubuntu 22.04 snapshot in hcloud.
+
+### Configuration
+
+In addition to the configuration found in `images/capi/packer/config`, the `hcloud`
+directory includes several JSON files that define the default configuration for
+the different operating systems.
+
+| File | Description |
+|------|-------------|
+| `centos-7.json`    | The settings for the CentOS 7 image     |
+| `flatcar.json`     | The settings for the Flatcar image      |
+| `rockylinux-8.json`| The settings for the RockyLinux 8 image |
+| `rockylinux-9.json`| The settings for the RockyLinux 9 image |
+| `ubuntu-2004.json` | The settings for the Ubuntu 20.04 image |
+| `ubuntu-2204.json` | The settings for the Ubuntu 22.04 image |
+| `ubuntu-2404.json` | The settings for the Ubuntu 24.04 image |

images/capi/Makefile

@@ -372,7 +372,7 @@ POWERVS_BUILD_NAMES         ?= powervs-centos-8
 
 NUTANIX_BUILD_NAMES ?= nutanix-ubuntu-2004 nutanix-ubuntu-2204 nutanix-ubuntu-2404 nutanix-rhel-8 nutanix-rhel-9 nutanix-rockylinux-8 nutanix-rockylinux-9 nutanix-flatcar nutanix-windows-2022
 
-HCLOUD_BUILD_NAMES ?= hcloud-ubuntu-2004 hcloud-ubuntu-2204 hcloud-centos-7 hcloud-rockylinux-8 hcloud-rockylinux-9 hcloud-flatcar
+HCLOUD_BUILD_NAMES ?= hcloud-ubuntu-2004 hcloud-ubuntu-2204 hcloud-ubuntu-2404 hcloud-centos-7 hcloud-rockylinux-8 hcloud-rockylinux-9 hcloud-flatcar
 
 PROXMOX_BUILD_NAMES 		?= proxmox-ubuntu-2204
 
@@ -815,6 +815,7 @@ build-nutanix-all: $(NUTANIX_BUILD_TARGETS) ## Builds all Nutanix image
 
 build-hcloud-ubuntu-2004: ## Builds the Hetzner Cloud ubuntu-2004 image
 build-hcloud-ubuntu-2204: ## Builds the Hetzner Cloud ubuntu-2204 image
+build-hcloud-ubuntu-2404: ## Builds the Hetzner Cloud ubuntu-2404 image
 build-hcloud-centos-7: ## Builds the Hetzner Cloud CentOS 7 image
 build-hcloud-rockylinux-8: ## Builds the Hetzner Cloud Rocky Linux 8 image
 build-hcloud-rockylinux-9: ## Builds the Hetzner Cloud Rocky Linux 9 image
@@ -978,6 +979,7 @@ validate-nutanix-all: $(NUTANIX_VALIDATE_TARGETS) ## Validates all Nutanix Packe
 
 validate-hcloud-ubuntu-2004: ## Validates Ubuntu 20.04 Hetzner Cloud Packer config
 validate-hcloud-ubuntu-2204: ## Validates Ubuntu 22.04 Hetzner Cloud Packer config
+validate-hcloud-ubuntu-2404: ## Validates Ubuntu 24.04 Hetzner Cloud Packer config
 validate-hcloud-centos-7: ## Validates CentOS 7 Hetzner Cloud Packer config
 validate-hcloud-rockylinux-8: ## Validates Rocky Linux 8 Hetzner Cloud Packer config
 validate-hcloud-rockylinux-9: ## Validates the Hetzner Cloud Rocky Linux 9 Packer config

images/capi/packer/hcloud/config.pkr.hcl

@@ -1,8 +1,8 @@
 packer {
   required_plugins {
     hcloud = {
-      version = ">= 1.0.0"
-      source  = "github.com/hashicorp/hcloud"
+      version = ">= 1.4.0"
+      source  = "github.com/hetznercloud/hcloud"
     }
   }
 }

images/capi/packer/hcloud/hcloud-config.json

@@ -3,5 +3,5 @@
   "hcloud_location": "{{env `HCLOUD_LOCATION`}}",
   "image_name": "cluster-api-{{user `build_name`}}-{{user `kubernetes_semver`}}-{{user `build_timestamp`}}",
   "server_type": "cx21",
-  "token": "{{env `AZURE_CLIENT_ID`}}"
+  "token": "{{env `HCLOUD_TOKEN`}}"
 }

images/capi/packer/hcloud/ubuntu-2404.json

@@ -0,0 +1,8 @@
+{
+  "build_name": "ubuntu-2404",
+  "distribution": "ubuntu",
+  "distribution_release": "noble",
+  "distribution_version": "2404",
+  "image": "ubuntu-24.04",
+  "ssh_username": "root"
+}