Add comprehensive documentation and automated update script

- Add README.md: Complete repository overview, architecture, and usage guide - Add update.sh: Automated K3s cluster upgrade script for all nodes - Add CLAUDE.md: Claude Code integration documentation 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
2025-07-28 14:18:07 +02:00
parent 620d757f8b
commit ff3e6f723c
4 changed files with 439 additions and 0 deletions
@@ -0,0 +1,180 @@
+#!/bin/bash
+
+set -e
+
+# Colors for output
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+# Configuration
+MASTER_NODE="turing1"
+WORKER_NODES=("turing2" "turing3" "turing4")
+BEELINK_NODE="beelink.lan"
+MASTER_IP="192.168.222.237"
+TOKEN="torino"
+SSH_PASSWORD="turing"
+
+# Function to print colored output
+print_status() {
+    echo -e "${GREEN}[INFO]${NC} $1"
+}
+
+print_warning() {
+    echo -e "${YELLOW}[WARN]${NC} $1"
+}
+
+print_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+# Function to check if sshpass is available
+check_dependencies() {
+    if ! command -v sshpass &> /dev/null; then
+        print_warning "sshpass not found, installing..."
+        if command -v pacman &> /dev/null; then
+            sudo pacman -S sshpass --noconfirm
+        elif command -v apt-get &> /dev/null; then
+            sudo apt-get update && sudo apt-get install -y sshpass
+        else
+            print_error "Cannot install sshpass automatically. Please install it manually."
+            exit 1
+        fi
+    fi
+}
+
+# Function to upgrade master node
+upgrade_master() {
+    print_status "Upgrading master node: $MASTER_NODE"
+    
+    sshpass -p "$SSH_PASSWORD" ssh -o StrictHostKeyChecking=no root@$MASTER_NODE '
+        curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_DOWNLOAD=false sh -s - \
+          --write-kubeconfig-mode 644 \
+          --disable servicelb \
+          --token torino \
+          --node-ip 192.168.222.237 \
+          --disable-cloud-controller \
+          --disable local-storage
+    '
+    
+    if [ $? -eq 0 ]; then
+        print_status "Master node $MASTER_NODE upgraded successfully"
+    else
+        print_error "Failed to upgrade master node $MASTER_NODE"
+        exit 1
+    fi
+}
+
+# Function to upgrade worker nodes
+upgrade_worker() {
+    local node=$1
+    print_status "Upgrading worker node: $node"
+    
+    sshpass -p "$SSH_PASSWORD" ssh -o StrictHostKeyChecking=no root@$node "
+        curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_DOWNLOAD=false \
+          K3S_URL=https://$MASTER_IP:6443 \
+          K3S_TOKEN=$TOKEN sh -
+    "
+    
+    if [ $? -eq 0 ]; then
+        print_status "Worker node $node upgraded successfully"
+    else
+        print_error "Failed to upgrade worker node $node"
+        return 1
+    fi
+}
+
+# Function to upgrade beelink node
+upgrade_beelink() {
+    print_status "Upgrading beelink node: $BEELINK_NODE"
+    
+    ssh -o PasswordAuthentication=no -o StrictHostKeyChecking=no gilgamezh@$BEELINK_NODE "
+        sudo curl -sfL https://get.k3s.io | INSTALL_K3S_SKIP_DOWNLOAD=false \
+          K3S_URL=https://$MASTER_IP:6443 \
+          K3S_TOKEN=$TOKEN sh -
+    "
+    
+    if [ $? -eq 0 ]; then
+        print_status "Beelink node $BEELINK_NODE upgraded successfully"
+    else
+        print_error "Failed to upgrade beelink node $BEELINK_NODE"
+        return 1
+    fi
+}
+
+# Function to verify cluster health
+verify_cluster() {
+    print_status "Verifying cluster health..."
+    
+    # Wait a moment for nodes to register
+    sleep 10
+    
+    print_status "Cluster nodes:"
+    kubectl get nodes
+    
+    print_status "Checking for unhealthy pods..."
+    unhealthy_pods=$(kubectl get pods --all-namespaces | grep -v Running | grep -v Completed | wc -l)
+    
+    if [ "$unhealthy_pods" -gt 1 ]; then  # Greater than 1 because header line counts
+        print_warning "Found unhealthy pods:"
+        kubectl get pods --all-namespaces | grep -v Running | grep -v Completed
+    else
+        print_status "All pods are healthy"
+    fi
+    
+    print_status "Cluster upgrade completed successfully!"
+}
+
+# Main execution
+main() {
+    print_status "Starting K3s cluster upgrade..."
+    print_status "This will upgrade all nodes in the TuringPi cluster"
+    
+    # Check dependencies
+    check_dependencies
+    
+    # Show current cluster state
+    print_status "Current cluster state:"
+    kubectl get nodes
+    
+    read -p "Do you want to continue with the upgrade? (y/N): " -n 1 -r
+    echo
+    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+        print_status "Upgrade cancelled"
+        exit 0
+    fi
+    
+    # Upgrade master node first
+    upgrade_master
+    
+    # Wait a bit for master to stabilize
+    sleep 15
+    
+    # Upgrade worker nodes
+    failed_workers=0
+    for worker in "${WORKER_NODES[@]}"; do
+        if ! upgrade_worker "$worker"; then
+            ((failed_workers++))
+        fi
+        sleep 5  # Brief pause between worker upgrades
+    done
+    
+    # Upgrade beelink node
+    if ! upgrade_beelink; then
+        print_warning "Beelink node upgrade failed, but continuing..."
+    fi
+    
+    # Verify cluster health
+    verify_cluster
+    
+    if [ $failed_workers -gt 0 ]; then
+        print_warning "Upgrade completed with $failed_workers failed worker node(s)"
+        exit 1
+    else
+        print_status "All nodes upgraded successfully!"
+    fi
+}
+
+# Run main function
+main "$@"