auto update script

.gitignore

@@ -14,3 +14,6 @@ compose.override.yml
 
 # Coverage
 .coverage
+
+# deployment
+*.log

scripts/auto_update.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+
+# Auto-update script for Docker Compose projects
+# This script checks for new commits and updates Docker Compose when changes are detected
+
+# Configuration - can be overridden by environment variables with sensible defaults
+REPO_DIR="${REPO_DIR:-/home/ubuntu/proxy}"
+LOG_FILE="${LOG_FILE:-/home/ubuntu/proxy/update.log}"
+LOCK_FILE="${LOCK_FILE:-/tmp/proxy_update.lock}"
+
+# Function to log messages with timestamp
+log_message() {
+    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" >> "$LOG_FILE"
+}
+
+# Function to cleanup on exit
+cleanup() {
+    rm -f "$LOCK_FILE"
+}
+
+# Set trap to cleanup on exit
+trap cleanup EXIT
+
+# Check if another instance is running
+if [ -f "$LOCK_FILE" ]; then
+    log_message "Another update process is already running. Exiting."
+    exit 1
+fi
+
+# Create lock file
+touch "$LOCK_FILE"
+
+# Change to repository directory
+cd "$REPO_DIR" || {
+    log_message "ERROR: Cannot change to repository directory $REPO_DIR"
+    exit 1
+}
+
+# Fetch latest changes from remote
+log_message "Fetching latest changes from remote..."
+git fetch origin 2>/dev/null
+
+# Check if local branch is behind remote
+LOCAL_HASH=$(git rev-parse HEAD)
+REMOTE_HASH=$(git rev-parse origin/$(git branch --show-current))
+
+if [ "$LOCAL_HASH" != "$REMOTE_HASH" ]; then
+    log_message "New commits detected. Current: $LOCAL_HASH, Remote: $REMOTE_HASH"
+    
+    # Pull latest changes
+    log_message "Pulling latest changes..."
+    if git pull origin $(git branch --show-current) 2>&1 | tee -a "$LOG_FILE"; then
+        log_message "Successfully pulled latest changes"
+        
+        # Stop current containers
+        log_message "Stopping current containers..."
+        sudo docker compose down 2>&1 | tee -a "$LOG_FILE"
+        
+        # Build and start updated containers
+        log_message "Building and starting updated containers..."
+        if sudo docker compose up -d --build 2>&1 | tee -a "$LOG_FILE"; then
+            log_message "Successfully updated and restarted containers"
+        else
+            log_message "ERROR: Failed to start containers"
+            exit 1
+        fi
+    else
+        log_message "ERROR: Failed to pull changes"
+        exit 1
+    fi
+else
+    log_message "No new commits found. Repository is up to date."
+fi
+
+log_message "Update check completed successfully"