Initial backup skill implementation

scripts/autorun.sh

@@ -0,0 +1,91 @@
+#!/bin/bash
+set -e
+
+BACKUP_TARGET="${BACKUP_TARGET:-/backups}"
+BACKUP_PASSWORD="${BACKUP_PASSWORD:-}"
+
+# Idempotent restic installation
+install_restic() {
+    if command -v restic &>/dev/null; then
+        echo "restic already installed: $(restic version)"
+        return 0
+    fi
+
+    echo "Installing restic..."
+
+    # Install from official repository
+    apt-get update
+    apt-get install -y restic
+
+    # Update to latest version
+    restic self-update 2>/dev/null || true
+
+    echo "restic installed: $(restic version)"
+}
+
+# Install cron for scheduled backups
+install_cron() {
+    if command -v cron &>/dev/null; then
+        echo "cron already installed"
+        return 0
+    fi
+
+    echo "Installing cron..."
+    apt-get update
+    apt-get install -y cron
+
+    echo "cron installed"
+}
+
+# Setup directories
+setup_dirs() {
+    # Create local backup directory if using local target
+    if [[ "$BACKUP_TARGET" == /* ]]; then
+        mkdir -p "$BACKUP_TARGET"
+        echo "Local backup directory: $BACKUP_TARGET"
+    fi
+
+    # Create status directory
+    mkdir -p /run/vibestack
+}
+
+# Initialize restic repository
+init_repository() {
+    if [ -z "$BACKUP_PASSWORD" ]; then
+        echo "WARNING: BACKUP_PASSWORD not set - skipping repository init"
+        echo "Set BACKUP_PASSWORD to enable backups"
+        return 0
+    fi
+
+    export RESTIC_PASSWORD="$BACKUP_PASSWORD"
+    export RESTIC_REPOSITORY="$BACKUP_TARGET"
+
+    # Setup cloud credentials if provided
+    if [ -n "$BACKUP_S3_ACCESS_KEY" ]; then
+        export AWS_ACCESS_KEY_ID="$BACKUP_S3_ACCESS_KEY"
+        export AWS_SECRET_ACCESS_KEY="$BACKUP_S3_SECRET_KEY"
+    fi
+
+    if [ -n "$BACKUP_B2_ACCOUNT_ID" ]; then
+        export B2_ACCOUNT_ID="$BACKUP_B2_ACCOUNT_ID"
+        export B2_ACCOUNT_KEY="$BACKUP_B2_ACCOUNT_KEY"
+    fi
+
+    # Check if repository exists
+    if restic cat config &>/dev/null; then
+        echo "Backup repository already initialized"
+        return 0
+    fi
+
+    echo "Initializing backup repository at $BACKUP_TARGET..."
+    restic init
+
+    echo "Backup repository initialized"
+}
+
+install_restic
+install_cron
+setup_dirs
+init_repository
+
+echo "Backup setup complete"