Skip to content

Latest commit

 

History

History
22 lines (16 loc) · 1.45 KB

node-image.md

File metadata and controls

22 lines (16 loc) · 1.45 KB
Raw

Node Images

To use CAPH in production it needs a node image. In Hetzner Cloud it is not possible to upload own images directly. However, a server can be created, configured and then snapshotted. For this Packer could be used, which have already support for Hetzner Cloud. In this repo is also an example packer node-image. To use it do the following:

export HCLOUD_TOKEN=<your-token>

## Only build
packer build templates/node-image/1.24.1-ubuntu-20-04-containerd/image.json

## Debug and ability to ssh into the created server
packer build --debug --on-error=abort templates/node-image/1.24.1-ubuntu-20-04-containerd/image.json

The first command is necessary so that packer is able to create a server in hcloud. The second one creates the server with packer. If you are developing your own packer image the third command could be helpful to check what's going wrong.

It's very important to know that if you create your own packer image you need to set a label so that CAPH is able to find the specified image name. We use for this label the following key: caph-image-name Please have a look into the image.json of the example node-image.

If you use your own node image. You should also use your own cluster-template.yaml and not the default one. The default one use preKubeadm commands to install all necessary things. This is very helpful for testing but is not recommended in a production system.