apricote/flatcar-packer-hcloud
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docs: use preview image from Flatcar CI

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Julian Tölle 2024-04-15 20:54:33 +02:00
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README.md
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@ -10,38 +10,30 @@
- [Packer](https://developer.hashicorp.com/packer)
- [Hetzner Cloud CLI](https://github.com/hetznercloud/cli) (`hcloud`)
## Building Image
See https://www.flatcar.org/docs/latest/reference/developer-guides/sdk-modifying-flatcar/
```
./build_packages
./build_image --replace
./image_to_vm.sh --format hetzner
```
## Building Snapshots
In Hetzner Cloud, you can create a "Snapshot" of your server's disk. You can then use these snapshots to create new servers.
We will use Packer and the flatcar-install script to write the image we built in the previous step to the disk and then create a snapshot.
We will use Packer and the `flatcar-install` script to write the pre-built images from Flatcar CI to the disk and then create a snapshot.
```shell
$ git clone --branch oem-image https://github.com/apricote/flatcar-packer-hcloud.git
$ git clone --branch oem-image-prebuilt https://github.com/apricote/flatcar-packer-hcloud.git
$ cd flatcar-packer-hcloud
$ export HCLOUD_TOKEN=<Your Hetzner Cloud API Token>
$ packer init .
# This will build the Snapshot for x86. You need to specify the path to your local image file.
$ packer build -var image_path=/path/to/flatcar_production_hetzner_image.bin.bz2 .
$ packer build .
# ... Takes a few minutes
# It sometimes hangs on "==> hcloud.x86: + trap - EXIT", running with `PACKER_LOG=1` fixes it for me.
==> Builds finished. The artifacts of successful builds are:
--> hcloud.x86: A snapshot was created: 'flatcar-x86' (ID: 157132241)
--> hcloud.arm: A snapshot was created: 'flatcar-arm' (ID: 157132242)
$ hcloud image list --type=snapshot --selector=os=flatcar
ID TYPE NAME DESCRIPTION ARCHITECTURE IMAGE SIZE DISK SIZE CREATED DEPRECATED
157132241 snapshot - flatcar-x86 x86 0.47 GB 20 GB Sat Mar 30 16:48:22 CET 2024 -
157132242 snapshot - flatcar-arm arm 0.44 GB 20 GB Sat Mar 30 16:48:22 CET 2024 -
```
## Create a Server