We need to port [[ https://github.com/wikimedia/operations-puppet/blob/production/modules/varnish/files/varnishlog.py | modules/varnish/files/varnishlog.py ]] (python bindings for the VSL API using ctypes) to the new VSL API.
python-varnishapi looks like a similar effort which supports Varnish 4.
The following programs depend on varnishlog.py:
Several of these scripts are only relevant to a particular cache role, so we can postpone migrating them until we're ready to migrate that particular role:
Phase 0: Scripts needed for all Varnish roles
|modules/varnish/files/varnishreqstats||Provides request counts / rates by HTTP method and status code.|
|modules/varnish/files/varnishstatsd||Reports backend response timing by backend.|
Phase 1: Scripts needed for text role
|modules/varnish/files/varnishrls||Tracks stats on ResourceLoader (load.php) requests.|
|modules/varnish/files/varnishxcps||Reports protocol and cipher support stats based on X-Connection-Properties header.|
Phase 2: Scripts needed for upload role
|modules/varnish/files/varnishmedia||Tracks stats on image requests.|
|modules/varnish/files/varnishprocessor||Library, currently only used by varnishmedia.|