shaker/cacher/README

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This is a caching proxy, based on apt-cacher-ng.
Config files are included, which will work out of the box for Debian,Ubuntu,Arch, and Fedora.
The cache and log directories are bind-mounted in /rw in the cacher qube.
Copy directory to /srv/salt, then run:
qubesctl state.apply cacher.create
qubesctl --skip-dom0 --targets=template-cacher state.apply cacher.install
qubesctl --skip-dom0 --targets=cacher state.apply cacher.configure
To automatically use the proxy run:
qubesctl state.apply cacher.use
This will configure /etc/qubes/policy.d/30-user.policy to use the caching proxy by default.
apt-cacher-ng will cache HTTPS requests if you change https:// to http://HTTPS/// in repo source lists.
To configure all templates to use the proxy in this way, run:
qubesctl --skip-dom0 --templates state.apply cacher.change_templates
Or target individual templates, as you wish:
qubesctl --skip-dom0 --targets=TEMPLATE1,TEMPLATE2 state.apply cacher.change_templates
N.B
apt-cacher-ng works well for Debian,Ubuntu,and Arch.
It works reasonably well for Fedora, but may require further tweaking of the apt-cacher-ng control file, and the fedora_mirrors lists.
To restore a template to the default state, a state is provided, restore_templates.sls.
Apply it like this:
qubesctl --skip-dom0 --targets=TEMPLATE1,TEMPLATE2 state.apply cacher.restore_templates
The qrexec policy file at /etc/qubes/policy.d/30-user.policy should be edited so that these templates use the default system proxy.