add k8s stop

01_Basic_Setup/justfile

@@ -10,6 +10,7 @@ export K3S_ENABLE_REGISTRY := env("K3S_ENABLE_REGISTRY", "true")
 export SERVER_IP := env("K3S_SERVER_IP","192.168.178.45")
 export AGENT_IP := env("K3S_AGENT_IP","192.168.178.75")
 export USER := env("K3S_USER","basti")
+export LONGHORN_NAMESPACE := env("LONGHORN_NAMESPACE","longhorn-system")
 
 [private]
 default:
@@ -145,4 +146,50 @@ configure-registry:
 
     echo "Restarting k3s to apply registry configuration..."
     ssh "${K8S_MASTER_NODE_NAME}" "sudo systemctl restart k3s"
-    echo "✓ Registry configuration applied"
+    echo "✓ Registry configuration applied"
+
+
+stop:
+    #!/bin/bash
+    set -euo pipefail
+    START_TIME=$(date +%s)
+    elapsed() {
+        echo "$(($(date +%s) - START_TIME))s"
+    }
+    nodenames=$(kubectl get nodes -o=jsonpath="{.items[*]['metadata.name']}")
+    # for node in ${nodenames}; do
+    #     kubectl drain "${node}" --ignore-daemonsets --delete-emptydir-data --force --disable-eviction --grace-period=60 --timeout=180s 2>&1 || true
+    #     kubectl cordon "${node}"
+    #     echo "Node ${node} stopped."
+    # done
+    # echo "Drain complete. Nodes are cordoned and drained."
+
+    # if helm status longhorn -n ${LONGHORN_NAMESPACE} &>/dev/null; then
+    #     echo "[$(elapsed)] Waiting for Longhorn volumes to be detached..."
+    #     TIMEOUT=90
+    #     ELAPSED=0
+    #     while [ $ELAPSED -lt $TIMEOUT ]; do
+
+    #         ATTACHED=$(kubectl get volumes.longhorn.io -n ${LONGHORN_NAMESPACE} -o json 2>/dev/null | \
+    #             jq -r '.items[] | select(.status.state == "attached") | .metadata.name' 2>/dev/null || true)
+
+    #         if [ -z "$ATTACHED" ]; then
+    #             echo "[$(elapsed)] ✓ All Longhorn volumes detached successfully"
+    #             break
+    #         fi
+
+    #         ATTACHED_COUNT=$(echo "$ATTACHED" | grep -c . || echo 0)
+    #         echo "  Still waiting for $ATTACHED_COUNT volume(s) to detach..."
+    #         sleep 2
+    #         ELAPSED=$((ELAPSED + 2))
+    #     done
+    #     if [ $ELAPSED -ge $TIMEOUT ]; then
+    #         echo "[$(elapsed)] ⚠ Warning: Timeout waiting for volumes to detach"
+    #     fi
+    # fi
+
+    for node in ${nodenames}; do
+        echo "[$(elapsed)] Stopping and disabling k3s service..."
+        ssh "${node}" "sudo systemctl stop k3s 2>/dev/null || true"
+        ssh "${node}" "sudo systemctl disable k3s 2>/dev/null || true"
+    done