kjuulh/terraform-hcloud-kube-hetzner
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Karim Naufal 2022-04-12 07:24:40 +02:00
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README.md
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@ -63,7 +63,7 @@ brew install hcloud
### 💡 [Do not skip] Creating the terraform.tfvars file
1. Create a project in your [Hetzner Cloud Console](https://console.hetzner.cloud/), and go to **Security > API Tokens** of that project to grab the API key. Take note of the key! ✅
2. Either, generate a passphrase-less ed25519 SSH key-pair for your cluster, unless you already have one that you'd like to use. Take note of the respective paths of your private and public keys. Or, for a key-pair with passphrase or a device like a Yubikey, make sure you have have an SSH agent running and your key is loaded (`ssh-add -L` to verify) and set `private_key = null` in the following step. ✅
2. Generate a passphrase-less ed25519 SSH key-pair for your cluster, take note of the respective paths of your private and public keys. Or, see our detailed [SSH options](https://github.com/kube-hetzner/kube-hetzner/blob/master/docs/ssh.md). ✅
3. Copy `terraform.tfvars.example` to `terraform.tfvars`, and replace the values from steps 1 and 2. ✅
4. Make sure you have the latest Terraform version, ideally at least 1.1.0. You can check with `terraform -v`. ✅
5. (Optional) There are other variables in `terraform.tfvars` that could be customized, like Hetzner region, and the node counts and sizes.

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Kube-Hetzner requires you to have a recent version of OpenSSH (>=6.5) installed on your client, and the use of a key-pair generated with either of the following algorithms:
- ssh-ed25519 (preferred, and most simple to use without passphrase)
- rsa-sha2-512
- rsa-sha2-256
If your key-pair is of the `ssh-ed25519` sort, and without of passphrase, you do not need to do anything else. Just set `public_key` and `private_key` to their respective path values in your terraform.tfvars.
---
Otherwise, for a key-pair with passphrase or a device like a Yubikey, make sure you have have an SSH agent running and your key is loaded with:
```bash
eval ssh-agent $SHELL
ssh-add ~/.ssh/my_private-key_id
```
Verify it is loaded with:
```bash
ssh-add -l
```
Then set `private_key = null` in your terraform.tfvars, as it will be read from the ssh-agent automatically.