New release (3.0?)

[itsdalmo]

I think we might be ready for a new release since merging the following PRs:

• https://github.com/buildkite/lifecycled/pull/45
• https://github.com/buildkite/lifecycled/pull/52

Perhaps a 3.0, since technically, the public interface has changed with the addition of a --spot flag? Thoughts @lox?

[lox]

Yeah, I was going to do a bit of testing and get #49 merged and then put out a 3.0!

[itsdalmo]

Have you had a chance to do any tests @lox?

I ask because I'm working on a deployment using lifecycled v2.1.1 (Concourse), and dangling queues are troubling me. The current version does not clean up the queue if the handler script exits with an error, since complete() is never reached in this case.

[lox]

Hmmmm. I haven't, apologies. I'll prioritize it if it's still an issue in the 2.x series.

[lox]

Ok, I did some testing today. I reckon we should have spot enabled by default and add a --no-spot flag to opt out. Thoughts @itsdalmo?

[itsdalmo]

Roger that! I don't use lifecycled with spot instances myself since the handler can take more >2min to execute, but for backwards compatibility it makes sense to inverse the logic - I'll submit a PR 👍

[itsdalmo]

@lox - are you still testing the current master branch?

[lox]

Sorry, I finished testing, everything looks good. Let's put out a release!

[itsdalmo]

Awesome, thanks!