feat(docker): add Docker configuration and production environment setup

docker/entrypoint.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env sh
+set -eu
+
+mkdir -p \
+    storage/app/public \
+    storage/framework/cache/data \
+    storage/framework/sessions \
+    storage/framework/views \
+    storage/logs \
+    bootstrap/cache
+
+if [ ! -L public/storage ]; then
+    rm -rf public/storage
+    ln -s ../storage/app/public public/storage
+fi
+
+if [ "$(id -u)" = "0" ]; then
+    chown -R www-data:www-data storage bootstrap/cache
+fi
+
+if [ -z "${APP_KEY:-}" ]; then
+    echo "ERROR: APP_KEY is empty. Set it in .env.production, then restart containers." >&2
+    echo "  php artisan key:generate --show" >&2
+    exit 1
+fi
+
+if [ "${APP_ENV:-production}" = "production" ]; then
+    php artisan config:cache --no-interaction
+    php artisan event:cache --no-interaction
+    php artisan view:cache --no-interaction
+fi
+
+exec "$@"