redaction (#1)

Add the redacted source file for demo purposes

Reviewed-on: https://source.michaeldileo.org/michael_dileo/Keybard-Vagabond-Demo/pulls/1
Co-authored-by: Michael DiLeo <michael_dileo@proton.me>
Co-committed-by: Michael DiLeo <michael_dileo@proton.me>

build/piefed/piefed-base/entrypoint-common.sh

@@ -0,0 +1,83 @@
+#!/bin/sh
+set -e
+
+# Common initialization functions for PieFed containers
+
+log() {
+    echo "[$(date +'%Y-%m-%d %H:%M:%S')] $1"
+}
+
+# Wait for database to be available
+wait_for_db() {
+    log "Waiting for database connection..."
+    until python -c "
+import psycopg2
+import os
+from urllib.parse import urlparse
+
+try:
+    # Parse DATABASE_URL
+    database_url = os.environ.get('DATABASE_URL', '')
+    if not database_url:
+        raise Exception('DATABASE_URL not set')
+    
+    # Parse the URL to extract connection details
+    parsed = urlparse(database_url)
+    conn = psycopg2.connect(
+        host=parsed.hostname,
+        port=parsed.port or 5432,
+        database=parsed.path[1:],  # Remove leading slash
+        user=parsed.username,
+        password=parsed.password
+    )
+    conn.close()
+    print('Database connection successful')
+except Exception as e:
+    print(f'Database connection failed: {e}')
+    exit(1)
+" 2>/dev/null; do
+        log "Database not ready, waiting 2 seconds..."
+        sleep 2
+    done
+    log "Database connection established"
+}
+
+# Wait for Redis to be available  
+wait_for_redis() {
+    log "Waiting for Redis connection..."
+    until python -c "
+import redis
+import os
+
+try:
+    cache_redis_url = os.environ.get('CACHE_REDIS_URL', '')
+    if cache_redis_url:
+        r = redis.from_url(cache_redis_url)
+    else:
+        # Fallback to separate host/port for backwards compatibility
+        r = redis.Redis(host='redis', port=6379, password=os.environ.get('REDIS_PASSWORD', ''))
+    r.ping()
+    print('Redis connection successful')
+except Exception as e:
+    print(f'Redis connection failed: {e}')
+    exit(1)
+" 2>/dev/null; do
+        log "Redis not ready, waiting 2 seconds..."
+        sleep 2
+    done
+    log "Redis connection established"
+}
+
+# Common startup sequence
+common_startup() {
+    log "Starting PieFed common initialization..."
+    
+    # Change to application directory
+    cd /app
+    
+    # Wait for dependencies
+    wait_for_db
+    wait_for_redis
+    
+    log "Common initialization completed"
+}