The problem is explaned here: https://bugs.chromium.org/p/chromium/issues/detail?id=260239

The use of header Vary: Origin dosen't fix the problem on chrome so I disabled the cache
with Pragma "no-cache". This doesn't cause issue because most of monitor files are
modified every minutes and sync happen at least every 5 minutes. So the better solution
is to disable cached.

so that build will not fail if the directory was left during previous
builds.

Compatibility with runner config is to be checked

Informations about what failed and what succeeded.

Copy templates in parts directory, according to the slapos'architecture

monitor: move httpd configuration template to jinja2