Juju 2.3.0 is here!

[Andrew Wilkins]

On Fri, Dec 8, 2017 at 6:59 AM Nicholas Skaggs <
nicholas.skaggs at canonical.com> wrote:

> The Juju team are extremely pleased to announce the release of Juju 2.3.
> Juju is now more versatile, more efficient, and more configurable than ever.
>
> Cross Model Relations deliver a new way of organising your software stack.
> Deploy a database in one model and connect it to an application running
> another, even one running on a different controller, or even a different
> cloud.
>
> For containers at scale, Juju now integrates Canonical's Fan overlay
> network system. This allows containers to map network traffic to any other
> container on the fan network without distributed databases, consensus
> protocols, or any extra overhead.
>
> Juju's support for bundles has made it possible to quickly deploy
> connected sets of applications for some time now, but no two use cases are
> the same. That's why we have introduced the concept of an 'overlay' bundle
> - now you can easily add your own configuration and tweaks to a bundle at
> deploy time. See below for links to more information on this and other key
> features.
>

Hi folks,

Unfortunately a critical bug [0] has escaped to the field. This bug affects
existing relations in upgraded models. Models created after upgrading, or
with a fresh bootstrap, or where relations are created after upgrading,
will not be affected.

I would not recommend upgrading from 2.x. to 2.3.0. We will be working on a
fix for 2.3.1, and I expect this issue will bring that release forward much
sooner. If you have already upgraded and are affected, then you can fix it
by adding a document to the "statuses" collection in Mongo, as described in
the bug.

Cheers,
Andrew

[0] https://bugs.launchpad.net/juju/+bug/1737107


>
>
> ## How can I get it?
>
>
> The best way to get your hands on this release of Juju is to install it
> via snap packages (see https://snapcraft.io/for more info on snaps).
>
>
>    snap install juju --classic
>
>
> Other packages are available for a variety of platforms. Please see the
> online documentation at https://jujucharms.com/docs/2.3/reference-install
>  <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.
>
>
> For highlights of this release, please see the documentation at
>
> https://jujucharms.com/docs/2.3/whats-new. Further details are below.
>
>
>
> ## New
>
>
> * Cross Model Relations:
>
>  - see https://jujucharms.com/docs/2.3/models-cmr
>
>
> * Persistent Storage:
>
>  - see https://jujucharms.com/docs/2.3/charms-storage
>
>
> * FAN:
>
>  - see https://jujucharms.com/docs/2.3/charms-fan
>
>
> * Bundle deployments:
>
>  - Changed flags for deploying bundles to existing machines
>
>  - Bundle deploy flag --bundle-config replaced with --overlay
>
>  - Deploying bundles now supports --dry-run
>
>  - Deploying bundles can now target existing machines
>
>
> * Update Application Series:
>
>  - see https://jujucharms.com/docs/2.3/howto-updateseries
>
>
> * Parallelization of the Machine Provisioner:
>
> - Groups of machines will now be provisioned in parallel reducing
> deployment time, especially on large bundles.
>
>
> * open_port and close_port hook tools now support ICMP
>
> - The open_port and close_port hook tools now support opening firewall
> access for ICMP. The syntax is:
>
> open_port icmp
>
>
> * LXD Storage Provider:
>
>  - see https://jujucharms.com/docs/2.3/charms-storage#lxd-(lxd)
>
>
> ## Fixes
>
>
> * Listing of Juju models is more efficient and can now handle more models
> gracefully
>
> * Leadership coordinations is no longer tied to local time which avoids
> problems with clock skew and reduces overall load on the database
>
> * Models are now more reliably destroyed and several fixes to avoid
> negative impacts while they are being removed
>
>
> You can check the milestones for a detailed breakdown of the Juju bugs we
> have fixed:
>
>
> https://launchpad.net/juju/+milestone/2.3.0
>
> https://launchpad.net/juju/+milestone/2.3-rc2
>
> https://launchpad.net/juju/+milestone/2.3-rc1
>
> https://launchpad.net/juju/+milestone/2.3-beta3
>
> https://launchpad.net/juju/+milestone/2.3-beta2
>
> https://launchpad.net/juju/+milestone/2.3-beta1
>
>
>
> ## Known issues
>
> The issues are targeted to be addressed in the upcoming 2.3.1 release.
>
>
> * Firewaller issues on vmware vsphere
> https://bugs.launchpad.net/juju/+bug/1732665
>
>
> * LXD broken on vmware
> https://bugs.launchpad.net/juju/+bug/1733882
>
>
> * Can't deploy bundle with map-machines=existing and subordinates
> https://bugs.launchpad.net/juju/+bug/1736592
>
>
> * load spike on controller following remove-application
> https://bugs.launchpad.net/juju/+bug/1733708
>
>
>
> ## Feedback Appreciated!
>
>
> We encourage everyone to let us know how you're using Juju.
>
>
> Join us at regular Juju shows - subscribe to our Youtube channel
> https://youtube.com/jujucharms
>
> 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.
>
>
> https://jujucharms.com/docs/2.3/contact-us <
> https://jujucharms.com/docs/stable/contact-us>
>
>
> ## More information
>
>
> To learn more about Juju please visit https://jujucharms.com.
> --
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>
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