Fixes

backend.dockerfile

@@ -17,10 +17,9 @@ ARG WP_LOGGED_IN_SALT
 ARG WP_NONCE_SALT
 ARG WP_JWT_AUTH_SECRET_KEY
 
-ENV WP_ENV development
+ENV WP_ENV ${WP_ENV}
 ENV WP_HOME ${API_URL}
 
-ENV MYSQL_HOST db
 ENV MYSQL_DATABASE ${MYSQL_DATABASE}
 ENV MYSQL_USER ${MYSQL_USER}
 ENV MYSQL_PASSWORD ${MYSQL_PASSWORD}