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📖 Add explanation how to set the k8s version #139

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merged 5 commits into from
May 30, 2024
Merged

📖 Add explanation how to set the k8s version #139

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0c49e4c
Add explanation how to set the k8s version
jriedel-ionos May 29, 2024
86ace68
Add info about default k8s version
jriedel-ionos May 29, 2024
7fec4d5
Add codeblock syntax highlighting
jriedel-ionos May 29, 2024
da53801
Add note about basic auth and token for FTP
jriedel-ionos May 29, 2024
293427c
use alert and proper grammar
jriedel-ionos May 29, 2024
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15 changes: 14 additions & 1 deletion docs/custom-image.md
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,8 @@ If you take a look at the [book](https://image-builder.sigs.k8s.io/capi/provider
- Packer version >= 1.6.0
- Goss plugin for Packer version >= 1.2.0
- Ansible version >= 2.10.0
- Qemu plugin for Packer version >= 1.1.0


First, clone the repo `git clone git@github.com:kubernetes-sigs/image-builder.git`
The build prerequisites for using image-builder for building raw images are managed by running:
Expand All @@ -19,6 +21,15 @@ make deps-qemu

### Build the image

Before we can build the image, we have to set the k8s version we want to build the image for.
By default, images will be built with current latest version - 2, e.g. if latest is 1.30.X then 1.28.X will be used.

For example for k8s version `1.28.3`:

```sh
export PACKER_FLAGS="--var 'kubernetes_rpm_version=1.28.3' --var 'kubernetes_semver=v1.28.3' --var 'kubernetes_series=v1.28' --var 'kubernetes_deb_version=1.28.3-1.1'"
```

Now you can build the image:
```sh
make build-qemu-ubuntu-2204
Expand All @@ -35,7 +46,9 @@ qemu-img convert -O qcow2 <image> "<image>.qcow2"

### Upload image to IONOS Cloud

You can now upload the qcow2 image to IONOS Cloud via:
You can now upload the qcow2 image to IONOS Cloud via:
> [!IMPORTANT]
> You have to use basic auth (username:password). Token authentication is not working with FTP.
```sh
ionosctl img upload -l txl -i <image>
```
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