chore(hetzner): setup kubernetes-dev-setup

cluster-autoscaler/cloudprovider/hetzner/dev/.gitignore

@@ -0,0 +1,5 @@
+.terraform/
+terraform.tfstate*
+*.auto.tfvars
+
+files/

cluster-autoscaler/cloudprovider/hetzner/dev/Makefile

@@ -0,0 +1,29 @@
+SHELL = bash
+
+ENV ?= dev
+K3S_CHANNEL ?= stable
+
+env.auto.tfvars:
+	@echo 'name         = "$(ENV)"' > "$@"
+	@echo 'hcloud_token = "$(HCLOUD_TOKEN)"' >> "$@"
+	@echo 'k3s_channel  = "$(K3S_CHANNEL)"' >> "$@"
+
+.terraform:
+	tofu init
+
+validate: .terraform
+	tofu validate
+
+up: .terraform env.auto.tfvars
+	tofu apply -auto-approve
+	$(MAKE) port-forward
+
+down: .terraform env.auto.tfvars
+	files/registry-port-forward.sh down
+	tofu destroy -auto-approve
+
+port-forward:
+	source files/env.sh && files/registry-port-forward.sh up
+
+clean:
+	rm -Rf files/ .terraform/ terraform.tfstate* env.auto.tfvars

cluster-autoscaler/cloudprovider/hetzner/dev/main.tf

@@ -0,0 +1,8 @@
+module "dev" {
+  source = "github.com/hetznercloud/kubernetes-dev-env?ref=v0.6.0" # x-release-please-version
+
+  name         = "cas-${replace(var.name, "/[^a-zA-Z0-9-_]/", "-")}"
+  hcloud_token = var.hcloud_token
+
+  k3s_channel = var.k3s_channel
+}

cluster-autoscaler/cloudprovider/hetzner/dev/variables.tf

@@ -0,0 +1,10 @@
+variable "name" {
+  type = string
+}
+variable "hcloud_token" {
+  type      = string
+  sensitive = true
+}
+variable "k3s_channel" {
+  type = string
+}

cluster-autoscaler/cloudprovider/hetzner/examples/cloud-init.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+export K3S_URL=https://YOUR_IP:6443
+# From /var/lib/rancher/k3s/server/token
+export K3S_TOKEN=YOUR_TOKEN
+export INSTALL_K3S_CHANNEL=v1.31
+EXTERNAL_IP=$(ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}')
+INTERNAL_IP=$(ip -4 addr show enp7s0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}')
+curl -sfL https://get.k3s.io | sh -s - --kubelet-arg=cloud-provider=external --node-external-ip $EXTERNAL_IP --node-ip $INTERNAL_IP

cluster-autoscaler/cloudprovider/hetzner/examples/kustomization.yaml

@@ -0,0 +1,12 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: kube-system
+
+resources:
+  - cluster-autoscaler-run-on-master.yaml
+
+secretGenerator:
+  - name: cluster-autoscaler-cloud-init
+    files:
+      - cloudinit=cloud-init.sh.b64

cluster-autoscaler/cloudprovider/hetzner/skaffold.yaml

@@ -0,0 +1,20 @@
+apiVersion: skaffold/v4beta3
+kind: Config
+metadata:
+  name: cluster-autoscaler-hetzner
+build:
+  artifacts:
+    - image: registry.k8s.io/autoscaling/cluster-autoscaler
+      context: ../../
+      ko:
+        flags:
+          - -tags=hetzner
+
+  local:
+    useBuildkit: true
+  insecureRegistries:
+    - localhost:30666
+manifests:
+  kustomize:
+    paths:
+      - examples/