On Fri, 24 Feb 2017 at 10:07 Adam Israel <adam.isr...@canonical.com> wrote:
> Thanks for calling this out, Simon! We should be shouting this from the > rooftops and celebrating in the streets. > Only if you also wave a big WARNING banner! I can definitely see value in pre-installing a bunch of things in your LXD images as a way of speeding up the development/testing cycle, but doing so might give you false confidence in your charm. It will become much easier to forget to list a package that you need installing, or to ensure that you have the correct access (PPA credentials, or proxy details etc.) and having your charm gracefully handle when those are missing. Juju promises charms encoding operations that can work across multiple cloud providers, bare metal and containers please keep that in mind :) > On Fri, Feb 24, 2017 at 8:42 AM Stuart Bishop <stuart.bis...@canonical.com> > wrote: > > On 23 February 2017 at 23:20, Simon Davy <simon.d...@canonical.com> wrote: > > > One thing that seems to have landed in 2.1, which is worth noting IMO, is > > the local juju lxd image aliases. > > > > tl;dr: juju 2.1 now looks for the lxd image alias juju/$series/$arch in > the > > local lxd server, and uses that if it finds it. > > > > This is amazing. I can now build a local nightly image[1] that > pre-installs > > and pre-downloads a whole set of packages[2], and my local lxd units > don't > > have to install them when they spin up. Between layer-basic and Canonical > > IS' basenode, for us that's about 111 packages that I don't need to > install > > on every machine in my 10 node bundle. Took my install hook times from > 5min+ > > each to <1min, and probably halfs my initial deploy time, on average. > > Ooh, thanks for highlighting this! I've needed this feature for a long > time for exactly the same reasons. > > > > [2] my current nightly cron: > > https://gist.github.com/bloodearnest/3474741411c4fdd6c2bb64d08dc75040 > > /me starts stealing > > -- > Stuart Bishop <stuart.bis...@canonical.com> > > -- > Juju-dev mailing list > juju-...@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/juju-dev > > -- > Adam Israel, Software Engineer > Canonical // Cloud DevOps // Juju // Ecosystem > -- > Juju-dev mailing list > juju-...@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/juju-dev >
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