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https://github.com/qjoly/pulumi-kubernetes-openstack

Simple example to deploy nodes for a Kubernetes cluster on Openstack using Pulumi
https://github.com/qjoly/pulumi-kubernetes-openstack

kubernetes openstack pulumi python

Last synced: about 2 months ago
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Simple example to deploy nodes for a Kubernetes cluster on Openstack using Pulumi

Host: GitHub
URL: https://github.com/qjoly/pulumi-kubernetes-openstack
Owner: qjoly
License: apache-2.0
Created: 2024-04-10T11:06:14.000Z (9 months ago)
Default Branch: main
Last Pushed: 2024-10-16T18:43:33.000Z (3 months ago)
Last Synced: 2024-11-30T16:40:52.452Z (about 2 months ago)
Topics: kubernetes, openstack, pulumi, python
Language: Python
Homepage:
Size: 38.1 KB
Stars: 0
Watchers: 2
Forks: 0
Open Issues: 2
Metadata Files:
- Readme: README.md
- License: LICENSE

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## Pulumi Kubernetes Openstack Example

This example demonstrates how to deploy nodes for a Kubernetes cluster on Openstack using Pulumi.

Note: By default, the values in the `Pulumi.yaml` use Infomaniak Openstack. You can change the values in the `Pulumi.yaml` file to match your Openstack configuration.

### Prerequisites

1. [Install Pulumi](https://www.pulumi.com/docs/get-started/install/)
2. [Install Python3](https://www.python.org/downloads/)
3. Create a virtual environment:
```bash
python3 -m venv venv
```
4. Install the required Python packages:
```bash
python3 -m pip install -r requirements.txt
```

### Running the Example

Create a new project using this template:
```bash
pulumi new https://github.com/qjoly/pulumi-kubernetes-openstack/tree/main
```

Run the pulumi program:
```bash
pulumi up
```

### Install Kubernetes cluster

Export the private key that can be used to connect to the nodes:

```bash
pulumi stack output nodes_keypair --show-secrets > nodes_keypair.pem
```

Send it to the admin node:

```bash
scp nodes_keypair.pem debian@$(pulumi stack output admin_external_ip):.ssh/id_rsa
ssh debian@$(pulumi stack output admin_external_ip) chmod 600 .ssh/id_rsa
```

*:warning: Note that you have to set the pulumi config passphrase to access content of the private key.*

Generate the inventory file:

```bash
pulumi stack output ip_addresses --json | python3 generate_inventory.py > inventory.ini
scp inventory.ini debian@$(pulumi stack output admin_external_ip):./inventory.ini
```

On the admin node, Create a virtual environment and install the required packages:

```bash
ssh debian@$(pulumi stack output admin_external_ip)
git clone https://github.com/kubernetes-sigs/kubespray && cd kubespray
cp -r inventory/sample/ ./inventory/pulumi-cluster
cp ~/inventory.ini ./inventory/pulumi-cluster/inventory.ini
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt
```

```bash
ansible-playbook -i ./inventory/pulumi-cluster/inventory.ini -u debian --become --become-user=root cluster.yml
```

All in one script

:warning: Only run this script if you are sure of what you are doing. :warning:

```bash
pulumi stack output nodes_keypair --show-secrets > nodes_keypair.pem
scp nodes_keypair.pem debian@$(pulumi stack output admin_external_ip):.ssh/id_rsa
ssh debian@$(pulumi stack output admin_external_ip) chmod 600 .ssh/id_rsa
pulumi stack output ip_addresses --json | python3 generate_inventory.py > inventory.ini
scp inventory.ini debian@$(pulumi stack output admin_external_ip):./inventory.ini
ssh debian@$(pulumi stack output admin_external_ip) \ '
git clone https://github.com/kubernetes-sigs/kubespray && cd kubespray && \
cp -r inventory/sample/ ./inventory/pulumi-cluster && \
cp ~/inventory.ini ./inventory/pulumi-cluster/inventory.ini && \
python3 -m venv venv && \
source venv/bin/activate && \
pip install -r requirements.txt && \
ansible-playbook -i ./inventory/pulumi-cluster/inventory.ini -u debian --become --become-user=root cluster.yml'

CP_IP=$(pulumi stack output 'ip_addresses' | jq -r '."kube-controlplane"[0]')
ssh debian@$(pulumi stack output admin_external_ip) "ssh-keyscan -H $CP_IP >> ~/.ssh/known_hosts && mkdir -p .kube && ssh $CP_IP sudo cat /root/.kube/config > .kube/config && sed -i 's/127.0.0.1/$CP_IP/g' ~/.kube/config && chmod 600 .kube/config && echo 'Done'"
```

### Output of the Pulumi program

:warning: Note that the output of the pulumi program will be different as the resources are created dynamically.

### Destroy the resources

To destroy the resources created by the Pulumi program, run the following command:

```bash
pulumi destroy
```