To debug an issue I'm having I need an Apache + Subversion server which dumps all requests and responses into a log file. This is not meant for production, that's why authentication is disabled as well.
I'm stuck with dump_io, my error.log does not contain requests/responses.
Here's the relevant setup.
Dockerfile
FROM ubuntu:18.04
RUN apt-get update
RUN apt-get install -y apache2
RUN apt-get install -y subversion libapache2-mod-svn libsvn-dev
RUN apt-get install -y less nano
RUN a2enmod dav
RUN a2enmod dav_svn
RUN a2enmod dump_io
RUN printf "DumpIOInput On\nDumpIOOutput On\nLogLevel debug" >> /etc/apache2/apache2.conf
RUN service apache2 restart
COPY dav_svn.conf /etc/apache2/mods-enabled/dav_svn.conf
COPY 000-default.conf /etc/apache2/sites-enabled/000-default.conf
RUN mkdir -p /var/local/svn
RUN svnadmin create /var/local/svn/myrepo
RUN chown -R www-data:www-data /var/local/svn
RUN chmod -R 775 /var/local/svn
EXPOSE 80
CMD ["/usr/sbin/apache2ctl", "-D", "FOREGROUND"]
dav_svn.conf
<Location /svn/>
DAV svn
DavDepthInfinity on
SVNParentPath /var/local/svn/
Satisfy Any
Allow from all
DirectorySlash Off
LogLevel debug
</Location>
000-default.conf (this is the default, I only added the LogLevel line)
<VirtualHost *:80>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
#ServerName www.example.com
ServerAdmin webmaster@localhost
DocumentRoot /var/www/html
# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn
LogLevel debug
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf
</VirtualHost>
Put the three files in a folder and
docker build -t svn-server .
docker run -it -p 3570:80 --rm svn-server
curl http://localhost:3570/svn/myrepo
After making the request I would expect /var/log/apache2/error.log to contain the full response of GET /svn/myrepo.
After a night of sleep and some RTFM I found the solution.
I sprinkled some
LogLevel dumpio:trace7
all over and it works.
Why that isn't the default is beyond me. You have to enable/disable DumpIOInput and DumpIOOutput anyway.
Additionally, mod_dumpio needs to be configured to LogLevel trace7: