Announcing the "ubuntu-mirror" charm

Christopher Glass tribaal at
Tue Sep 23 03:53:18 UTC 2014

Yes, I realize the use case is pretty narrow :)

You can mirror single components as well (just the apt archives, just cloud
images, etc...), so maybe you can use it as offline helper as well (juju
deploy on the plane?)

On Sep 23, 2014 6:01 AM, "Marco Ceppi" <marco.ceppi at> wrote:

> Hi Chris!
> Awesome work on the charm, I'm not sure I'll ever need to mirror the
> entire Ubuntu repository, but if I ever did I'm happy there's a charm for
> it! I do like that it leverages the storage charm and is scaleout safe
> (safe for bandwidth + wallet too).
> Marco
> On Sat, Sep 20, 2014 at 10:55 AM, Christopher Glass <tribaal at>
> wrote:
>> Hi all,
>> I've started playing with and deploying my "ubuntu-mirror" charm, that
>> leverages the excellent "storage" subordinate charm to create full
>> ubuntu mirrors.
>> That allows you to mirror a lot of the bits that make up ubuntu: the
>> apt repositories of course, but also cdimages, releases, ports and
>> cloud-images, and hopefully more in the near future (the MAAS images
>> are in the pipe, too, for example).
>> I've kicked the tires and deployed the full mirror a couple of times,
>> and I think it's now time for more eyes to look at the code, and
>> hopefully somebody else will find it useful.
>> For what it's worth, I am currently using a very similar setup as an
>> official Ubuntu archive and it seems to be doing pretty good.
>> The code lives at: lp:~tribaal/charms/trusty/ubuntu-mirror/trunk and
>> merge proposals are very welcome, either against the charm or the
>> "ubumirror" package it is using (that I also happen to maintain). You
>> can deploy it with:
>> juju deploy cs:~tribaal/trusty/ubuntu-mirror
>> juju deploy storage
>> juju set storage "nfs"  # Or whatever storage provider you have a few Tb
>> on
>> juju add-relation storage ubuntu-mirror
>> # Wait a few hours :)
>> Future plans are roughly: get some tests written (it's a very simple
>> charm, but hey), get some version approved in the "official"
>> charmstore, and add the maas images to the syncing options. I'd also
>> like to randomize the crontab schedules a little if left unchanged,
>> but I've hit a few problems with the approach I took (using peer
>> storage). I'm happy to discuss good ways to solve that, too.
>> Note: I've seen an ubuntu proxy charm around here some time ago - this
>> one is a *mirror*, so it'll rsync a few *terrabytes* of data if you
>> let it do its thing :) It should hopefully not download the whole
>> thing multiple times if you scale out, however, so "add-unit" away!
>> Hope this helps somebody somewhere :)
>> - Chris
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