Upgrades broken in 1.22 tip

[Curtis Hovey]

As seen at
    http://reports.vapour.ws/releases/3232

2015-10-28 07:14:56 ERROR juju.cmd supercommand.go:430 no matching tools available

Juju cannot upgrade after the commit of
    https://github.com/juju/juju/commit/a02fbc8812e40f5754a36bd2252747a98a74d3e2

The commit can be backed put or fixed.

[Curtis Hovey (sinzui)]

This bug might be related to bug1507867. This bug is not limited to canonistack and keystone, but since that bug has mutated, we might find a common reason for no matching agents.

[Curtis Hovey (sinzui)]

This bug might be in other branches or a variation of it has merged into master which feature branches merge often.

<stokaboo> reported that --upload-tools didn't work with the lxd-provider branch because "no matching tools available"
machine-0: 2015-10-29 12:22:24 ERROR juju.worker runner.go:223 exited "toolsversionchecker": cannot update tools information: cannot get latest version: canot find available tools: no matching tools available

[Cheryl Jennings (cherylj)]

That error from toolsversionchecker is spurious and was fixed in bug 1502202 (should be in 1.25.1).

The other reports of "no matching tools" from the various commands is definitely valid and needs investigating.