Spotty

- changed the default working directory for a container to a project directory
- changed a Docker build's context path to a Dockerfile directory
- added the "container" alias to connect to the Docker container from the host OS

- added the "availabilityZone" parameter
- added the "retain" deletion policy
- capability to attach existing volumes to the instance
- "snapshotName" parameter renamed to "name"
- set the "create_snapshot" deletion policy as a default one
- auto-resize volumes restored from snapshots
- display current spot price once an instance is started
- checking the maximum price before starting an instance

CF template fix

Disable daily updates for apt: fix for the issue when the cloud-init fails to install packages because the "/var/lib/dpkg/lock" file is locked.

- updated CF template for AMI creation
- fixes

- attaching multiple volumes to the instance
- 2 snapshot modes for volumes: "update_snapshot" and "create_snapshot"
- Instance Profile resource moved to separated stack to launch an instance faster
- "volumes" parameter is optional
- other fixes