Gubuntu@juju-openstack3-machine-3:~$ sudo apt-get --assume-yes --option=Dpkg::Options::=--force-confold install haproxy python-jinja2                                                                       
Reading package lists... Done
Building dependency tree       
Reading state information... Done
haproxy is already the newest version.
python-jinja2 is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 17 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up haproxy (1.6.3-1~cloud0) ...
 * Starting haproxy haproxy
/usr/sbin/haproxy: symbol lookup error: /usr/lib/x86_64-linux-gnu/liblua5.3.so.0: undefined symbol: _ZTVN10__cxxabiv117__class_type_infoE
/usr/sbin/haproxy: symbol lookup error: /usr/lib/x86_64-linux-gnu/liblua5.3.so.0: undefined symbol: _ZTVN10__cxxabiv117__class_type_infoE
   ...fail!
invoke-rc.d: initscript haproxy, action "start" failed.
dpkg: error processing package haproxy (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 haproxy
E: Sub-process /usr/bin/dpkg returned an error code (1)