wordpress/rootfs/etc/cont-init.d/10-init-wordpress

#!/usr/bin/with-contenv bash
set -e

DISABLE_WP_UPDATES="${ENFORCE_DISABLE_WP_UPDATES:-true}"

# Designed to replace original, overcomplicated entrypoint script from official wordpress docker repository
# Why not use already available tools instead?!

function wp() {
  # Running as root in container is OK as long as all security implications are observed and maintained
  /usr/local/bin/wp --allow-root "$@"
}

echo "> Verifying 'WordPress ${WP_VERSION}' installation..."
if wp core version;
then
  echo "> Identified 'WordPress ${WP_VERSION}'"
else
  echo "> Downloading 'WordPress ${WP_VERSION}'..."
  wp core download --locale="${WP_LOCALE}" --version="${WP_VERSION}"

  if [ "${DISABLE_WP_UPDATES}" != "false" ]; then
    echo "> Disabling WordPress updates..."
    patch /var/www/html/wp-admin/update-core.php < /etc/wp-mods/wp-admin/update-core.php.patch
  fi
fi