Add nofail function to test_helpers

This allows running a command that might fail and acting on the result
without having to set +e and set -e all over.

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>
Update provision_cf to hardcode admin/admin

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>
Update get_ip_from_vm_ifconfig regex to be more strict

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>
Update ci-aws-box-build

* Clean up old box files
* Don't update bosh-lite-ami.list

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>
Don't add the box in ci-local-box-build

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>
Sort env in test_helpers

Sorting the environment variables makes for easier scanning.

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>
Add ci/env.sh

This is for the builds in the build flow to use a consistent revision.

Signed-off-by: Adam Stegman <astegman@pivotallabs.com>