Merge pull request #5848 from chihiro-adachi/fix-dockerbuild-m1

docker containerのm1対応

Dockerfile

@@ -54,6 +54,8 @@ RUN mkdir -p ${APACHE_DOCUMENT_ROOT} \
 RUN a2enmod rewrite headers ssl
 # Enable SSL
 RUN ln -s /etc/apache2/sites-available/default-ssl.conf /etc/apache2/sites-enabled/default-ssl.conf
+# see https://stackoverflow.com/questions/73294020/docker-couldnt-create-the-mpm-accept-mutex/73303983#73303983
+RUN echo "Mutex posixsem" >> /etc/apache2/apache2.conf
 EXPOSE 443
 
 # Use the default production configuration