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https://github.com/alexzimmer96/rancher-hcloud
A Terraform script to deploy a highly available Rancher installation on Hetzner Cloud
https://github.com/alexzimmer96/rancher-hcloud
hetzner-cloud kubernetes rancher rke terraform
Last synced: 4 days ago
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A Terraform script to deploy a highly available Rancher installation on Hetzner Cloud
- Host: GitHub
- URL: https://github.com/alexzimmer96/rancher-hcloud
- Owner: alexzimmer96
- License: mit
- Created: 2020-11-14T10:05:30.000Z (about 4 years ago)
- Default Branch: master
- Last Pushed: 2022-06-18T20:08:58.000Z (over 2 years ago)
- Last Synced: 2024-08-02T21:02:53.003Z (4 months ago)
- Topics: hetzner-cloud, kubernetes, rancher, rke, terraform
- Language: HCL
- Homepage:
- Size: 16.6 KB
- Stars: 50
- Watchers: 6
- Forks: 26
- Open Issues: 8
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-hcloud - Rancher on Hetzner Cloud
README
# Rancher on Hetzner Cloud
This repository contains Terraform templates for deploying a highly available RKE cluster on Hetzner Cloud and installing Rancher into it.
The Rancher installation can be used to create more clusters using the [Hetzner UI Driver](https://github.com/mxschmitt/ui-driver-hetzner).
Please feel free to make contributions or use this for your own projects.
## Running the Scripts
First, take the terraform.tfvars.example and make your configuration.
After this, you're ready to run.
```bash
# Initalizing the module
terraform init
# Creating the cluster
terraform apply -target=module.cluster_init
# Installing Cert-Manager and Rancher
terraform apply -target=module.rancher_init
# Create default node templates
terraform apply -target=module.node_init
```
## Project Structure
This Project consists of three modules.
The `module-cluster-init` is for creating a basic RKE-Cluster on Hetzner Cloud, including server provisioning.
The `module-rancher-init` is for installing Cert-Manager and Rancher on top of your provisioned cluster.
The `module-node-init` creates Node Templates for Hetzner Cloud on your newly created Rancher instance.
### Why is this divided into modules?
First, there is a bug in the Terraform k8s-provider.
The existence of the kubeconfig-file is checked at planning phase.
Unfortunately, that does not work because the cluster did not exist in planning phase.
Second, this gives you the possibility to create a DNS-Entry for the Load Balancer.
This step could be automated, but my personal domain is not at a DNS provider which has an API to automate this.
## Next Steps
At the moment, there is no integration for the [hcloud-controller-manager](https://github.com/hetznercloud/hcloud-cloud-controller-manager) or their [CSI driver](https://github.com/hetznercloud/csi-driver).
This could be added to provide a tighter integration to the Hetzner Cloud Environment.
Also, i want to add a module to perform the installation of the [Hetzner UI Driver](https://github.com/mxschmitt/ui-driver-hetzner)
Maybe some of this code can be used to create a more generic Terraform project to build production ready RKE clusters on Hetzner.