WIP: Juju 2.8.2 Release Notes

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The Juju team is proud to release Juju 2.8.2!

The Juju team is proud to release Juju 2.8.2! This is a bugfix release for the 2.8 series.

What’s new

Interactive shell

This release includes fixes to the following issues:

  • LP #1849746 - dump-model fails if a machine is allocating
  • LP #1886369 - dump-model fails if one or more units are in error / executing state
  • LP #1877380 - juju storage should use UUIDs in fstab, and possibly set mount option “nofail”
  • LP #1879972 - juju model-config does not export in a way that is reusable
  • LP #1880422 - Bootstrapping manual controller on arm64 fails
  • LP #1869939 - Unable to add credential for Azure cloud
  • LP #1887887 - azure instance type selection is broken
  • LP #1884490 - Cannot bootstrap with vSphere data center under a folder
  • LP #1890828 - relation data lost during upgrade to juju 2.8.1
  • LP #1891524 - Deploying a bundle with caas charm specific setting fails on subsequent deploy
  • LP #1892216 - Can’t set application version string in K8s charm

The entire list can be found on the milestone’s page.

Known issues

Upgrading from 2.8.0 on k8s

If you are running a k8s deployment on 2.8.0, there are extra steps needed to upgrade that deployment to this release.

Upgrading a k8s controller

When running juju upgrade-controller on k8s, the selection of the next JUju version to upgrade to is broken. As a work around, specify the version manually, eg

juju upgrade-controller --agent-version=2.8.2

How do I install Juju?

The best way to get your hands on this release of Juju is to install it as a snap:

sudo snap install juju --classic

Other packages are available for a variety of platforms, including Windows and macOS. Refer to the full Juju installation documentation.

Those subscribed to a snap channel should be automatically upgraded. If you’re using the PPA or Homebrew for macOS, you should see an upgrade available.

How do I upgrade?

Upgrading Juju is a multi-step process:

If you are upgrading Juju from 2.8.0 and have either a Kubernetes Juju controller or a Kubernetes Models the following steps will need to be performed

  • upgrade the client (the Juju binary that you interact with on the command-line)
  • (recommended) verify that the client upgrade was successful
  • (recommended) back up the controller
  • upgrade the controller
  • upgrade models

Upgrade the client

If you’ve installed Juju via the snap, your Juju will automatically be installed overnight. To force the update, run:

snap refresh juju
Upgrading the Juju client through other channels

If you’re using the PPA:

sudo apt update
sudo apt upgrade

On Homebrew for macOS:

brew update
brew upgrade

Check version

To prevent any confusion in later steps, ensure that you’re using the new Juju version.

juju version
What to do if Juju reports an old version

Check your $PATH environment variable and that you’ve installed the new version correctly.

On Linux and macOS, use the env command to inspect the environment. On MS Windows, use SET.

Backing up

The controller state can be saved to allow for recovery in case the upgrade process encounters a serious error.

juju create-backup

Upgrading controllers

Juju includes a command that instructs the controller to upgrade itself to the latest version.

juju upgrade-controller
How to upgrade the controller

First, check that you’re interacting with the intended controller. The juju models command reports the current controller on the first line.

juju models

To verify what will occur, use the --dry-run option.

juju upgrade-controller --dry-run

When you’re happy, omit the flag:

juju upgrade-controller

Upgrade models

Your models remain at the same version until you have explicitly told Juju to upgrade them.

juju upgrade-model
How to upgrade your model(s)

Check that you’re operating in the correct model. juju model highlights the current model with an asterisk:

juju models

To verify what will occur, use the --dry-run option.

juju upgrade-juju --dry-run

When you’re happy, omit the flag:

juju upgrade-juju

Further instructions

Juju’s documentation pages provide detailed information about the upgrade process:

Feedback Appreciated!

We encourage everyone to let us know how you’re using Juju. Please ask questions on on Discourse, send us a message to our Twitter account @juju_devops, tweet using the hashtag #juju_devops, and chat with us at #juju on Freenode.

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