v2.2-beta.2

New beta agent release (Comparison) 🎉

• New: Added support for environment variable substitution in pipeline files (#246)
• New: Added support for Google Cloud Storage for artifacts (#207)
• New: Added support for BUILDKITE_DOCKER_COMPOSE_LEAVE_VOLUMES (#252) which allows you to keep the docker-compose volumes once a job has been run

This release also includes the following fixes that are also available in the latest stable release:

• New: Added support for BUILDKITE_S3_ACCESS_URL (#261) allowing you set your own host for build artifact links. This means you can set up your own proxy/web host that sits in front of your private S3 artifact bucket, and click directly through to them from Buildkite.
• New: Added support for BUILDKITE_GIT_CLEAN_FLAGS (#270) allowing you to ensure all builds have completely clean checkouts using an environment hook with export BUILDKITE_GIT_CLEAN_FLAGS=-fqdx
• New: Added support for various new ARM builds (#258) allowing you to run the agent on services such as Scaleway
• Fix: Increased many of the HTTP timeouts to ease the stampede on the agent endpoint (#259)
• Fix: Corrected bash escaping errors which could cause problems for installs to non-standard paths (#262)
• Fix: Made HTTPS the default for all artifact upload URLs (#265)
• Fix: Added Buildkite's bin dir to the end, not the start, of $PATH (#267)
• Fix: Ensured that multiple commands separated by newlines fail as soon as a command fails (#272)