This commit changes the working directory used for the redis-server
process from /etc/redis, which the redis user does not have write access
to, to /var/lib/redis, which is writable by the redis user.
Previously, pyzmq and redis were pip installed using the default pip,
which was for Python 3. This resulted in the pyzmq and redis packages
not being found when the MISP server spawned the mispzmq script using
the default python, which is version 2. With this commit, pyzmq and
redis would be installed for both Python 2 (via pip2) and Python 3
(via pip3), which should allow the packages to be available to scripts
which use it from different Python versions.
Previously, the redis-server program was started from supervisord.conf
without a configuration file specifying the data directory to use. This
resulted in redis "not able to persist to disk" errors when the mispzmq
script performed some redis commands. The error was due to the default
redis data directory, /etc/redis, not being writable by the user that
the redis process runs as, redis.
This commit passes the /etc/redis/redis.conf configuration file to the
redis-server process at startup. The configuration file already sets the
data directory to a directory that the redis user has write access to,
/var/lib/redis.
Ventz Petkov