Juju Actions: opt-in to new behaviour from Juju 2.8

[timClicks (Tim McNamara)]

@wallyworld

client only feature flag - trivial to turn on.

Spoken as a core developer

If you look at the docs for feature flags, there are massive warning lights saying that they shouldn’t be used for production systems.

I’ve just added a suggestion that might make enabling feature flags more accessible:

Change the feature flag environment variable to JUJU_FEATURES

An idea, let’s simplify the feature flag that people need to use to enable feature flags. The current one is unwieldy and all of the documentation surrounding them notes that they are experimental, e.g.: JUJU_DEV_FEATURE_FLAGS This setting takes effect on an environment only at bootstrap time. Unstable or pre-release features are enabled only when the feature flag is enabled prior to bootstrapping the environment. JUJU_DEV_FEATURE_FLAGS=<flag1,flag2> juju bootstrap Unforeseen and detrimental…