https://github.com/rgl/terraform-libvirt-rke-example

an example RKE cluster in libvirt QEMU/KVM Virtual Machines using terraform
https://github.com/rgl/terraform-libvirt-rke-example

k8s libvirt rke terraform

Last synced: 13 days ago
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an example RKE cluster in libvirt QEMU/KVM Virtual Machines using terraform

• Host: GitHub
• URL: https://github.com/rgl/terraform-libvirt-rke-example
• Owner: rgl
• Created: 2021-08-15T14:17:53.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2022-09-12T18:47:41.000Z (about 2 years ago)
• Last Synced: 2024-10-11T07:16:14.182Z (27 days ago)
• Topics: k8s, libvirt, rke, terraform
• Language: HCL
• Homepage:
• Size: 18.6 KB
• Stars: 6
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# About

This creates an example [RKE cluster](https://rancher.com/docs/rke/latest/en/) in libvirt QEMU/KVM Virtual Machines using terraform.

For a vSphere equivalent see the [rgl/terraform-rke-vsphere-cloud-provider-example](https://github.com/rgl/terraform-rke-vsphere-cloud-provider-example). 

For a Pulumi equivalent see the [rgl/dotnet-pulumi-libvirt-rke-example repository](https://github.com/rgl/dotnet-pulumi-libvirt-rke-example).

## Usage (Ubuntu 20.04 host)

Create and install the [Ubuntu 20.04 vagrant box](https://github.com/rgl/ubuntu-vagrant) (because this example uses its base disk).

Install `terraform`:

```bash

wget https://releases.hashicorp.com/terraform/1.2.9/terraform_1.2.9_linux_amd64.zip

unzip terraform_1.2.9_linux_amd64.zip

sudo install terraform /usr/local/bin

rm terraform terraform_*_linux_amd64.zip

```

Install `kubectl`:

```bash

kubectl_version='1.24.2'

wget -qO /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg

echo 'deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main' | sudo tee /etc/apt/sources.list.d/kubernetes.list >/dev/null

sudo apt-get update

kubectl_package_version="$(apt-cache madison kubectl | awk "/$kubectl_version-/{print \$3}")"

sudo apt-get install -y "kubectl=$kubectl_package_version"

```

Launch this example:

```bash

export TF_VAR_controller_count=1    # number of controller nodes.

export TF_VAR_worker_count=1        # number of worker nodes.

time make recreate

```

Test accessing the cluster:

```bash

terraform output --raw rke_state >rke_state.json # might be useful for troubleshooting.

terraform output --raw kubeconfig >kubeconfig.yaml

export KUBECONFIG="$PWD/kubeconfig.yaml"

kubectl get nodes -o wide

```

Destroy everything:

```bash

make destroy

```