* Create one log file per container mode
* Make singularity 3 work
* Minor fixes
* Fix cascade with docker image and singularity image
* Add capability to pull from library://
* Add singularity signed images to config file
* Add singularity signed images to the global resource table
* Pull and verify signed singularity images
* Put the singularity sypgp directory in the mount directory
* Add ability to provide key file to verify a singularity image
* Resolve PR comments
* Fix Singularity registry credemtials
* Extract cascade logic from nodeprep
* Re-run cascade if the image update command has no specified image
* Fix prefix errors when using shipyard docker image
* Make sure that the cascade log files are not overridden
* Fix wrong parameter name
* Clarify error message when trying to update images on Windows
* Update documentation
* Fix checks
* Resolve PR comments
* Create one log file per container mode
* Make singularity 3 work
* Minor fixes
* Fix cascade with docker image and singularity image
* Add capability to pull from library://
* Add singularity signed images to config file
* Add singularity signed images to the global resource table
* Pull and verify signed singularity images
* Put the singularity sypgp directory in the mount directory
* Add ability to provide key file to verify a singularity image
* Resolve PR comments
* Fix Singularity registry credemtials
* Create one log file per container mode
* Make singularity 3 work
* Minor fixes
* Fix cascade with docker image and singularity image
* Add capability to pull from library://
- Omit registry info for native container pools when
delay_docker_image_preload is enabled
- Allow cascade image management to scale to large node counts
- Shellcheck-induced regressions in containers
- Split Docker image build into own build env on appveyor
- Update to Python 3.6.5 for cargo Docker image build on Windows
- Fix image update to work in multi-instance mode with registry logins
- Allow CentOS 7.3 provisioning to continue to work
- Allow CentOS-HPC 7.1 provisioning
- Add CentOS 7.4 support
- Add Debian 9 support
- Update dependencies
- Remove private registry back to Azure storage blob support (#44)
- Require fully qualified Docker image names (#106)
- Support multiple public/private registries on a single pool (#127)