hub had a problem with the quotes in the sed expression so rather than
worry about it, I've dropped the problem completely. The double quotes
don't mask the slash in the path for cat. Thus, using a different
separator removes the problem of a truncated expression.
RUN sed -e 's|/var/www/html|/var/www/public_html|' -e 's/\(Log \+\)[^ ]\+/\1"|/bin/cat"/' -i /etc/apache2/sites-available/000-default.conf
RUN sed -e 's|/var/www/html|/var/www/public_html|' -e 's@\(Log \+\)[^ ]\+@\1"|/bin/cat"@' -i /etc/apache2/sites-available/000-default.conf
RUN a2ensite 000-default
RUN a2ensite 000-default
RUN sed -e 's|/var/www/html|/var/www/public_html|' -e 's/\(Log \+\)[^ ]\+/\1"|/bin/cat"/' -i /etc/apache2/sites-available/default-ssl.conf
RUN sed -e 's|/var/www/html|/var/www/public_html|' -e 's@\(Log \+\)[^ ]\+@\1"|/bin/cat"@' -i /etc/apache2/sites-available/default-ssl.conf
RUN sed -e '/SSLCertificateKeyFile/s|ssl-cert-snakeoil.key|ssl-cert.key|' -e '/SSLCertificateFile/s|ssl-cert-snakeoil.pem|ssl-cert.pem|' -i /etc/apache2/sites-available/default-ssl.conf
RUN sed -e '/SSLCertificateKeyFile/s|ssl-cert-snakeoil.key|ssl-cert.key|' -e '/SSLCertificateFile/s|ssl-cert-snakeoil.pem|ssl-cert.pem|' -i /etc/apache2/sites-available/default-ssl.conf
RUN ln -snf ssl-cert-snakeoil.pem /etc/ssl/certs/ssl-cert.pem
RUN ln -snf ssl-cert-snakeoil.pem /etc/ssl/certs/ssl-cert.pem
RUN ln -snf ssl-cert-snakeoil.key /etc/ssl/private/ssl-cert.key
RUN ln -snf ssl-cert-snakeoil.key /etc/ssl/private/ssl-cert.key