With the recent changes on platform.sh / eZ Platform Cloud about varnish, the demo installer does not work anymore.

KaliopMigration scripts failed because of not enough memory. At some point during the installation, the memory reach 600MB and the process is killed.

 0%  81.6%  626 MB  /usr/bin/php7.3-zts
0%  15.3%  117 MB  /usr/bin/python2.7
0%  14.4%  110 MB  php-fpm:
0%  5.6%  43 MB  php
0%   2.2%  17 MB  nginx:

Explanation: varnish is trying to purge everything during the install.