Juju 2.3-rc1 is now availible
nicholas.skaggs at canonical.com
Fri Nov 17 20:26:26 UTC 2017
A new release of Juju is here, 2.3-rc1. This is primarily a bug fix release
which addresses issues carried over from beta3.
## New and Improved
* Changed flags for deploying bundles to existing machines
When deploying bundles, machines specified in the bundle are added to the
model as new machines. In order to use the existing machines in the model
rather than create new machines, the option --map-machines=existing can be
used. To specify particular machines for the mapping, multiple comma
separated values of the form "bundle-id=existing-id" can be passed where
the bundle-id and the existing-id refer to top level machine IDs. For
example, if there were a bundle that specified machines 1, 2, and 3, and
the model had machines 1, 2, 3 and 4, the following deployment of the
bundle would use machines 1 and 2 in the model for machines 1 and 2 in the
bundle and use machine 4 in the model for the bundle machine 3.
juju deploy some-bundle --map-machines existing,3=4
* Bundle deploy flag --bundle-config replaced with --overlay.
The bundle config files used to allow overwriting configuration values of
applications that had already been defined in the base bundle, but did
The overlay files are now full bundles in their own right. The overlay
bundle can specify new applications, change values like the previous
bundle-config files, and also specify the removal of an application in the
base bundle. An application can be removed from the bundle definition by
defining the application name in the application section, but no values
specified. Removing an application also removes all the relations for that
application. If a machines section is specified in an overlay bundle it
replaces the machines section of the base bundle. No merging of machine
information is attempted. Multiple overlay bundles can be specified and
they are processed in the order they appear on the command line.
For a list of all bugs fixed in this release, see
## How can I get it?
The best way to get your hands on this release of Juju is to install it as
a snap package (see https://snapcraft.io/ for more info on snaps).
snap install juju --classic --candidate
Other packages are available for a variety of platforms. Please see the
online documentation at https://jujucharms.com/docs/stable/reference-install.
Those subscribed to a snap channel should be automatically upgraded. If
you’re using the ppa/homebrew, you should see an upgrade available.
## Feedback Appreciated!
We encourage everyone to let us know how you're using Juju. Send us a
message on Twitter using #jujucharms, join us at #juju on freenode, and
subscribe to the mailing list at juju at lists.ubuntu.com.
## More information
To learn more about juju please visit https://jujucharms.com.
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