mirror of
https://github.com/sailor-sh/CK-X.git
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86 lines
3.1 KiB
Bash
Executable File
86 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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# ===============================================================================
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# KIND Cluster Creation
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# this script access the parametter i.e num of nodes i.e NUM_WORKERS
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# example command to run this script ./setup.sh 3 cluster1
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# ===============================================================================
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NUM_WORKERS=${1:-0} # Default to 1 worker if not provided
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CLUSTER_NAME=${2:-cluster}
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NODE_IMAGE=${3:-kindest/node:v1.32.3}
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#delete kind-config.yaml if present
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if [ -f "kind-config.yaml" ]; then
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echo "kind-config.yaml already exists, deleting it"
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rm -f kind-config.yaml
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fi
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cat <<EOF > /tmp/kind-config.yaml
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kind: Cluster
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apiVersion: kind.x-k8s.io/v1alpha4
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nodes:
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- role: control-plane
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extraPortMappings:
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- containerPort: 6443
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hostPort: 6443
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kubeadmConfigPatches:
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- |
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apiVersion: kubeadm.k8s.io/v1beta3
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kind: ClusterConfiguration
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apiServer:
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certSANs:
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- "k8s-api-server"
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- "127.0.0.1"
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- "localhost"
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EOF
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for i in $(seq 1 "$NUM_WORKERS"); do
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echo " - role: worker" >> /tmp/kind-config.yaml
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done
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echo "Cluster config with $NUM_WORKERS worker nodes generated: /tmp/kind-config.yaml"
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echo "$(date '+%Y-%m-%d %H:%M:%S') | Creating KIND cluster with configuration..."
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echo "$(date '+%Y-%m-%d %H:%M:%S') | ├── Name: $CLUSTER_NAME"
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echo "$(date '+%Y-%m-%d %H:%M:%S') | ├── Image: $NODE_IMAGE"
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echo "$(date '+%Y-%m-%d %H:%M:%S') | ├── Config: /tmp/kind-config.yaml"
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echo "$(date '+%Y-%m-%d %H:%M:%S') | └── Number of nodes: $NUM_WORKERS"
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# Create kind cluster
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kind create cluster --name $CLUSTER_NAME --image $NODE_IMAGE --config /tmp/kind-config.yaml
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# ===============================================================================
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# Cluster Readiness Check
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# ===============================================================================
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echo "$(date '+%Y-%m-%d %H:%M:%S') | Verifying cluster status..."
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CLUSTER_CHECK_COUNT=0
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# Wait for kind cluster to be ready
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while ! kind get clusters | grep "$CLUSTER_NAME"; do
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CLUSTER_CHECK_COUNT=$((CLUSTER_CHECK_COUNT+1))
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echo "$(date '+%Y-%m-%d %H:%M:%S') | [WAITING] KIND cluster not ready yet... (attempt $CLUSTER_CHECK_COUNT)"
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sleep 10
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done
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echo "$(date '+%Y-%m-%d %H:%M:%S') | [SUCCESS] KIND cluster $CLUSTER_NAME is ready and operational"
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# ===============================================================================
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# Setup Complete
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# ===============================================================================
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echo "$(date '+%Y-%m-%d %H:%M:%S') | Docker and KIND environment is ready for use"
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# Save kubeconfig and set API server address
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cp /home/candidate/.kube/config /home/candidate/.kube/kubeconfig
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sed -i 's|server: https://.*|server: https://k8s-api-server:6443|' /home/candidate/.kube/kubeconfig
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echo "127.0.0.1 k8s-api-server" >> /etc/hosts
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export KUBECONFIG=/home/candidate/.kube/kubeconfig
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#info on config file setup done
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echo "$(date '+%Y-%m-%d %H:%M:%S') | Config file setup done"
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#info on cluster setup done
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echo "$(date '+%Y-%m-%d %H:%M:%S') | Cluster setup done"
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exit 0 |