Kind ready

# Create Kind Cluster

Install kind:

```bash

[ $(uname -m) = x86_64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.29.0/kind-linux-amd64

chmod +x ./kind

sudo mv ./kind /usr/local/bin/kind

```

Create the cluster:

```bash

kind create cluster --name operator-platform --config kind-config.yaml

```

Once the cluster is up, run `docker ps` on your host. You should see the `operator-platform-control-plane` container, and its `PORTS` section should include `0.0.0.0:6443->6443/tcp`. You might also see a `127.0.0.1:RANDOM_PORT->6443/tcp`—this is KinD’s default internal mapping, which you can ignore.

Export the kubeconfig:

```bash

kind get kubeconfig --name operator-platform > operator-platform-external-kubeconfig.yaml

```

Now, edit `operator-platform-external-kubeconfig.yaml`. Find the `server:` line (it will likely point to `https://0.0.0.0:6443`). Change it to use your host IP and port 6443.

# Kind Cluster Automation

Simple scripts to deploy and undeploy a Kind (Kubernetes in Docker) cluster.

## Prerequisites

- Docker installed and running

- `curl` (for downloading Kind if not installed)

- `sudo` privileges (for installing Kind if needed)

## Quick Start

### Deploy the Cluster

```bash

./deploy.sh

```

This script will:

1. Install Kind if it's not already installed

2. Create a Kind cluster named `operator-platform` with 1 control-plane and 2 worker nodes

3. Export the kubeconfig to `operator-platform-external-kubeconfig.yaml`

4. Display instructions for accessing the cluster

### Undeploy the Cluster

```bash

./undeploy.sh

```

This script will:

1. Delete the Kind cluster

2. Remove the kubeconfig file

3. Clean up all associated Docker containers

## Accessing the Cluster

After running `deploy.sh`:

1. Edit `operator-platform-external-kubeconfig.yaml`

2. Find the `server:` line (will be `https://0.0.0.0:6443`)

3. Change it to:

   - `https://localhost:6443` for local access

   - `https://<YOUR_HOST_IP>:6443` for remote access

4. Use the kubeconfig:

   ```bash

   export KUBECONFIG=$(pwd)/operator-platform-external-kubeconfig.yaml

   kubectl get nodes

   ```

## Cluster Configuration

The cluster is configured in `kind-config.yaml` with:

- 1 control-plane node

- 2 worker nodes

- API server accessible on `0.0.0.0:6443`

- Containerd configured to keep unpacked layers

## Troubleshooting

### Port 6443 already in use

If port 6443 is already in use, you'll need to:

1. Stop the service using that port, or

2. Modify `kind-config.yaml` to use a different `hostPort`

### Cannot connect to cluster

Make sure:

- The cluster is running: `kind get clusters`

- Docker containers are up: `docker ps | grep operator-platform`

- You've edited the kubeconfig server URL correctly

### Cluster creation fails

Check Docker is running:

```bash

docker ps

```

View detailed logs:

```bash

kind create cluster --name operator-platform --config kind-config.yaml -v 3

```

## Manual Management

If you prefer manual control:

```bash

# List clusters

kind get clusters

# Delete a specific cluster

kind delete cluster --name operator-platform

# Get kubeconfig

kind get kubeconfig --name operator-platform

# Load a Docker image into the cluster

kind load docker-image <image-name> --name operator-platform

```

#!/bin/bash

set -e

echo "=========================================="

echo "Deploying Kind Cluster"

echo "=========================================="

# Check if Kind is installed

if ! command -v kind &> /dev/null; then

    echo "Kind not found. Installing Kind..."

    [ $(uname -m) = x86_64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.29.0/kind-linux-amd64

    chmod +x ./kind

    sudo mv ./kind /usr/local/bin/kind

    echo "✓ Kind installed successfully"

else

    echo "✓ Kind is already installed ($(kind version))"

fi

# Check if cluster already exists

if kind get clusters 2>/dev/null | grep -q "operator-platform"; then

    echo "⚠ Cluster 'operator-platform' already exists"

    read -p "Do you want to recreate it? (y/N): " -n 1 -r

    echo

    if [[ $REPLY =~ ^[Yy]$ ]]; then

        echo "Deleting existing cluster..."

        kind delete cluster --name operator-platform

    else

        echo "Keeping existing cluster. Exiting."

        exit 0

    fi

fi

# Create the cluster

echo "Creating Kind cluster 'operator-platform'..."

kind create cluster --name operator-platform --config kind-config.yaml

# Wait a bit for the cluster to be fully ready

echo "Waiting for cluster to be ready..."

sleep 5

# Verify the cluster

echo ""

echo "Checking cluster status..."

docker ps --filter name=operator-platform

# Export kubeconfig

echo ""

echo "Exporting kubeconfig..."

kind get kubeconfig --name operator-platform > operator-platform-external-kubeconfig.yaml

# Get host IP (try to detect it)

HOST_IP=$(hostname -I | awk '{print $1}')

echo ""

echo "=========================================="

echo "✓ Kind cluster deployed successfully!"

echo "=========================================="

echo ""

echo "Next steps:"

echo "1. Edit operator-platform-external-kubeconfig.yaml"

echo "2. Find the 'server:' line (currently https://0.0.0.0:6443)"

echo "3. Change it to: https://localhost:6443 (for local access)"

echo "   Or use: https://${HOST_IP}:6443 (for remote access)"

echo ""

echo "4. Then use the kubeconfig:"

echo "   export KUBECONFIG=\$(pwd)/operator-platform-external-kubeconfig.yaml"

echo "   kubectl get nodes"

echo ""

echo "The cluster has 1 control-plane and 2 worker nodes."

echo "=========================================="

kind: Cluster

apiVersion: kind.x-k8s.io/v1alpha4

networking:

  apiServerAddress: "0.0.0.0"

nodes:

  - role: control-plane

    kubeadmConfigPatches:

      - |

        kind: ClusterConfiguration

        apiServer:

          certSANs:

          # TODO Parametrise this later on somehow

          # - "172.27.13.254" # <-- REPLACE with your host IP 

          - "localhost"

          - "127.0.0.1"

    extraPortMappings:

      - containerPort: 6443

        hostPort: 6443

        listenAddress: "0.0.0.0"

        protocol: TCP

  - role: worker

  - role: worker

containerdConfigPatches:

  - |-

    [plugins."io.containerd.grpc.v1.cri".containerd]

      discard_unpacked_layers = false

#!/bin/bash

set -e

echo "=========================================="

echo "Undeploying Kind Cluster"

echo "=========================================="

# Check if Kind is installed

if ! command -v kind &> /dev/null; then

    echo "✗ Kind is not installed. Nothing to undeploy."

    exit 1

fi

# Check if cluster exists

if ! kind get clusters 2>/dev/null | grep -q "operator-platform"; then

    echo "✗ Cluster 'operator-platform' does not exist."

    exit 0

fi

# Delete the cluster

echo "Deleting Kind cluster 'operator-platform'..."

kind delete cluster --name operator-platform

# Clean up kubeconfig file if it exists

if [ -f "operator-platform-external-kubeconfig.yaml" ]; then

    echo "Removing kubeconfig file..."

    rm operator-platform-external-kubeconfig.yaml

fi

echo ""

echo "=========================================="

echo "✓ Kind cluster undeployed successfully!"

echo "=========================================="

echo ""

echo "The cluster and all its resources have been removed."

echo "Docker containers for the cluster nodes have been deleted."

echo ""