Setup talos cluster

This will not be perfect, it's for my own use and for learning :)

Target

• running talos with defined number of controlplanes/workers
• install Hetzner Cloud Controller Manager
• install Cilium with Gateway API

Configured correctly and Hetzner has no issues, talos + kubernetes is up and runing in about 5 minutes.

Requirements

• Hetzner customer :)
• Domain at Hetzner, not needed, can be removed/adapted
• packer for creating a talos base image
• tofu (Should work with terraform too)
• I use direnv to setup all the needed configuration variables

Config

Required environment variables:

# to use hcloud command in shell, optional
export HCLOUD_TOKEN=....
# for provider setup
export TF_VAR_hcloud_token=$HCLOUD_TOKEN

# provider setup
export HETZNER_DNS_API_TOKEN=...

# not needed, but useful when used with direnv in .envrc file
# tofu output -raw kubeconfig >kubeconfig; tofu output -raw talosconfig >talosconfig
export KUBECONFIG=kubeconfig
export TALOSCONFIG=talosconfig

Input Parameter

see test.tfvars.sample

Create cluster

cd <repodir>
cp test.tfvars.sample test.tfvars
# adapt parameters

# initialize tofu/packer
tofu init
packer init --upgrade packer/talos_image.pkr.hcl

tofu apply -var-file=test.tfvars

Todo

• define cilium version to be installed (hardcoded to 1.16rc right now)
• maybe some other tweaks
• maybe instsall flux, not sure if that should be part of initial setup