juju HA lands on tip

[Richard Harding]

On Thu, 17 Apr 2014, roger peppe wrote:

> I've just landed some changes on juju tip that enable "highly available"
> juju environments. In a HA environment, there are several state servers -
> if one dies, one of the others should take over.
>
> ...
>
> There is one major caveat: upgrading an existing environment
> to HA is not supported currently (Andrew Wilkins has a branch in review that
> should fix this).

Thanks for the heads up Roger. We'll definitely take a peek at this. From a
GUI perspective, is this something that can be done via the API or planned
for that? From our end we'd love to be able to have juju-quickstart
bootstrap an HA environment. We'd also want to monitor and expose the HA
status in the GUI. Once the upgrading an existing environment lands, it's
something we'd like to enable to users to be able to take their current
environment and bring up a HA state server within it.

These instructions sounds like the work for juju-quickstart should be
possible to just script into the bootstrap process. The rest I've not look
into yet.

--

Rick Harding

Juju UI Engineering
https://launchpad.net/~rharding
@mitechie