diff --git a/templates/deployment.yaml b/templates/deployment.yaml
index 85a3174..f4d2c48 100644
--- a/templates/deployment.yaml
+++ b/templates/deployment.yaml
@@ -27,24 +27,21 @@ spec:
               set -e
               echo "=== WordPress Initialization Started ==="
               
-              echo "Copying WordPress files to writable location..."
-              cp -rp /usr/src/wordpress/* /wordpress/
+              echo "Copying WordPress to emptyDir..."
+              cp -rp /usr/src/wordpress/* /opt/bitnami/wordpress/
               
-              if [ ! -d /var/www/html/wp-content ]; then
-                echo "Initializing wp-content directory..."
-                mkdir -p /var/www/html/wp-content
-                cp -rp /usr/src/wordpress/wp-content/* /var/www/html/wp-content/
-                echo "wp-content initialized"
-              else
-                echo "wp-content already exists, preserving user data"
+              if [ ! -d /bitnami/wordpress/wp-content ]; then
+                echo "Initializing wp-content..."
+                mkdir -p /bitnami/wordpress/wp-content
+                cp -rp /usr/src/wordpress/wp-content/* /bitnami/wordpress/wp-content/
               fi
               
-              echo "Removing default wp-content and creating symlink..."
-              rm -rf /wordpress/wp-content
-              ln -sf /var/www/html/wp-content /wordpress/wp-content
+              echo "Removing default wp-content and linking to PVC..."
+              rm -rf /opt/bitnami/wordpress/wp-content
+              ln -sf /bitnami/wordpress/wp-content /opt/bitnami/wordpress/wp-content
               
               echo "Generating wp-config.php..."
-              cat > /wordpress/wp-config.php << 'EOF'
+              cat > /opt/bitnami/wordpress/wp-config.php << 'EOF'
               <?php
               define('DB_NAME', getenv('WORDPRESS_DB_NAME'));
               define('DB_USER', getenv('WORDPRESS_DB_USER'));
@@ -121,14 +118,11 @@ spec:
               
               if [ $attempt -eq $max_attempts ]; then
                 echo "ERROR: Database connection timeout"
-                echo "DB_HOST: ${WORDPRESS_DB_HOST}"
-                echo "DB_NAME: ${WORDPRESS_DB_NAME}"
-                echo "DB_USER: ${WORDPRESS_DB_USER}"
                 exit 1
               fi
               
               echo "Checking if WordPress is already installed..."
-              TABLES=$(/tmp/wp-cli.phar --path=/usr/src/wordpress db query "SHOW TABLES LIKE '${WORDPRESS_TABLE_PREFIX}options';" 2>/dev/null || echo "")
+              TABLES=$(/tmp/wp-cli.phar --path=/opt/bitnami/wordpress db query "SHOW TABLES LIKE '${WORDPRESS_TABLE_PREFIX}options';" 2>/dev/null || echo "")
               
               if [ -z "$TABLES" ]; then
                 echo "=== Starting WordPress Installation ==="
@@ -136,13 +130,13 @@ spec:
                 if [ -z "$WP_ADMIN_PASSWORD" ]; then
                   WP_ADMIN_PASSWORD=$(tr -dc 'A-Za-z0-9!@#$%^&*' < /dev/urandom | head -c 16)
                   echo "Generated admin password: $WP_ADMIN_PASSWORD"
-                  echo "$WP_ADMIN_PASSWORD" > /var/www/html/.initial-admin-password
+                  echo "$WP_ADMIN_PASSWORD" > /bitnami/wordpress/.initial-admin-password
                 fi
                 
                 INSTALL_URL="http://127.0.0.1"
                 
                 echo "Installing WordPress..."
-                /tmp/wp-cli.phar --path=/wordpress core install \
+                /tmp/wp-cli.phar --path=/opt/bitnami/wordpress core install \
                   --url="$INSTALL_URL" \
                   --title="$WP_SITE_TITLE" \
                   --admin_user="$WP_ADMIN_USER" \
@@ -152,24 +146,16 @@ spec:
                 
                 echo "=== WordPress Installation Completed ==="
                 echo "Admin User: $WP_ADMIN_USER"
-                if [ -f /var/www/html/.initial-admin-password ]; then
-                  echo "Admin Password: $(cat /var/www/html/.initial-admin-password)"
+                if [ -f /bitnami/wordpress/.initial-admin-password ]; then
+                  echo "Admin Password: $(cat /bitnami/wordpress/.initial-admin-password)"
                 fi
-                echo "Note: Site URL is dynamic and will be set based on HTTP_HOST"
               else
                 echo "WordPress is already installed, skipping installation"
-                
-                if /tmp/wp-cli.phar --path=/wordpress core version 2>/dev/null; then
-                  CURRENT_VERSION=$(cat /usr/src/wordpress/wp-includes/version.php | grep "wp_version = " | cut -d "'" -f 2)
-                  echo "Checking for WordPress updates... Target version: $CURRENT_VERSION"
-                  /tmp/wp-cli.phar --path=/wordpress core update --version=$CURRENT_VERSION 2>/dev/null || true
-                  /tmp/wp-cli.phar --path=/wordpress core update-db 2>/dev/null || true
-                fi
               fi
               
               {{- if .Values.wordpress.adsTxt.enabled }}
               echo "Deploying ads.txt..."
-              cat > /wordpress/ads.txt << 'ADSTXT'
+              cat > /opt/bitnami/wordpress/ads.txt << 'ADSTXT'
               {{ .Values.wordpress.adsTxt.content }}
               ADSTXT
               echo "ads.txt deployed"
@@ -177,10 +163,12 @@ spec:
               
               echo "=== WordPress Initialization Completed ==="
           volumeMounts:
-            - name: wordpress-core
-              mountPath: /wordpress
-            - name: wordpress-persistent
-              mountPath: /var/www/html
+            - name: empty-dir
+              mountPath: /opt/bitnami/wordpress
+              subPath: app-base-dir
+            - name: wordpress-data
+              mountPath: /bitnami/wordpress
+              subPath: wordpress
           env:
             - name: WORDPRESS_DB_HOST
               value: {{ .Values.wordpress.dbHost | quote }}
@@ -258,8 +246,12 @@ spec:
               containerPort: 80
               protocol: TCP
           volumeMounts:
-            - name: wordpress-core
-              mountPath: /wordpress
+            - name: empty-dir
+              mountPath: /opt/bitnami/wordpress
+              subPath: app-base-dir
+            - name: wordpress-data
+              mountPath: /bitnami/wordpress
+              subPath: wordpress
             - name: nginx-config
               mountPath: /etc/nginx/conf.d/default.conf
               subPath: default.conf
@@ -274,13 +266,7 @@ spec:
         - name: wordpress
           image: "{{ .Values.image.wordpress.registry }}/{{ .Values.image.wordpress.repository }}:{{ .Values.image.wordpress.tag }}"
           imagePullPolicy: {{ .Values.image.wordpress.pullPolicy }}
-          command: 
-            - /bin/sh
-            - -c
-            - |
-              # PHP-FPMの設定を確認・修正
-              sed -i 's|chdir = /var/www/html|chdir = /wordpress|g' /usr/local/etc/php-fpm.d/www.conf || true
-              exec php-fpm
+          command: ["php-fpm"]
           securityContext:
             runAsUser: 82
             runAsGroup: 82
@@ -299,14 +285,18 @@ spec:
             - name: WORDPRESS_TABLE_PREFIX
               value: {{ .Values.wordpress.tablePrefix | quote }}
           volumeMounts:
-            - name: wordpress-core
-              mountPath: /wordpress
+            - name: empty-dir
+              mountPath: /opt/bitnami/wordpress
+              subPath: app-base-dir
+            - name: wordpress-data
+              mountPath: /bitnami/wordpress
+              subPath: wordpress
           resources:
             {{- toYaml .Values.resources.wordpress | nindent 12 }}
       volumes:
-        - name: wordpress-core
+        - name: empty-dir
           emptyDir: {}
-        - name: wordpress-persistent
+        - name: wordpress-data
           {{- if .Values.persistence.enabled }}
           persistentVolumeClaim:
             claimName: {{ include "wordpress-nginx.fullname" . }}-pvc