Setup scripts added

scripts/install_docker_rpi.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+#
+# Docker Installation Script for Raspberry Pi OS 64-bit Lite
+# Usage: sudo bash install_docker_rpi.sh
+#
+
+set -euo pipefail
+
+log() { echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*"; }
+
+if [ "$(id -u)" -ne 0 ]; then
+    log "ERROR: This script must be run as root (use sudo)."
+    exit 1
+fi
+
+SWARM_INIT=false
+SWARM_JOIN=false
+SWARM_MANAGER_IP=""
+SWARM_TOKEN=""
+
+echo "=== Docker Swarm Configuration ==="
+read -r -p "Is this the first node of a new Docker Swarm? (y/N): " init_choice
+if [[ "$init_choice" =~ ^[Yy]$ ]]; then
+    SWARM_INIT=true
+else
+    read -r -p "Do you want to join an existing Docker Swarm? (y/N): " join_choice
+    if [[ "$join_choice" =~ ^[Yy]$ ]]; then
+        SWARM_JOIN=true
+        read -r -p "Enter Swarm Manager IP address: " SWARM_MANAGER_IP
+        read -r -p "Enter Swarm Join Token: " SWARM_TOKEN
+    fi
+fi
+
+log "Updating system packages..."
+apt-get update
+apt-get upgrade -y
+
+log "Downloading and running Docker's official convenience script..."
+curl -fsSL https://get.docker.com -o /tmp/get-docker.sh
+sh /tmp/get-docker.sh
+
+log "Configuring user permissions..."
+# Use the user who invoked sudo, otherwise default to 'pi'
+TARGET_USER="${SUDO_USER:-pi}"
+
+if id "$TARGET_USER" &>/dev/null; then
+    usermod -aG docker "$TARGET_USER"
+    log "Added user '$TARGET_USER' to the 'docker' group."
+else
+    log "WARNING: User '$TARGET_USER' not found, skipping group assignment."
+fi
+
+log "Enabling Docker service to start on boot..."
+systemctl enable docker
+systemctl start docker
+
+# Grab the primary local IP address to advertise for Swarm
+LOCAL_IP=$(hostname -I | awk '{print $1}')
+
+if [ "$SWARM_INIT" = true ]; then
+    log "Initializing Docker Swarm..."
+    docker swarm init --advertise-addr "$LOCAL_IP"
+    WORKER_TOKEN=$(docker swarm join-token worker -q)
+elif [ "$SWARM_JOIN" = true ]; then
+    log "Joining Docker Swarm at $SWARM_MANAGER_IP..."
+    # Append default swarm port if the user didn't specify one
+    if [[ "$SWARM_MANAGER_IP" != *":"* ]]; then
+        SWARM_MANAGER_IP="${SWARM_MANAGER_IP}:2377"
+    fi
+    docker swarm join --advertise-addr "$LOCAL_IP" --token "$SWARM_TOKEN" "$SWARM_MANAGER_IP"
+fi
+
+log "Cleaning up..."
+rm -f /tmp/get-docker.sh
+
+log "=== Installation Complete ==="
+log "Note: You must log out and log back in for the group changes to take effect,"
+log "      or run 'newgrp docker' to use Docker as a non-root user immediately."
+
+if [ "$SWARM_INIT" = true ]; then
+    echo ""
+    log "=== Swarm Initialized ==="
+    log "To add worker nodes to this swarm, use the following as input variables:"
+    log "Manager IP: $LOCAL_IP"
+    log "Join Token: $WORKER_TOKEN"
+fi