Some Tweaks and Minor Features

(these have been piling up for a while)

clouds/

• remove_image -> delete_image
• add optional encryption to AWS images (!139 (closed)), other misc. cleanup
• image format conversion moved to image_configs.py

configs/

• cloud_image_url --> cloud_region_url
• add storage_url and download_url for non-cloud image storage/retrieval

alpine.pkr.hcl

• post-processing will happen for all actions
• builder is always going to be qemu and its image format will always be qcow2

build

• add the full range of target steps (still working on upload and release, though)
• rollback target step forces --revise

cloud_helper.py

• add the full range of target steps (still working on upload and release)
• save image metadata after every target step

image_configs.py

• ImageConfigManager passes yaml object and log context to ImageConfig
• allow EXCLUDE/end_of_life to be defined inside WHEN blocks
• image conversion from qcow2 to other formats is done here now, and checksum is also generated
• metadata (i.e. tags) is also saved next to local converted image (with its own checksum)

gen_mksite_releases.py

• has replaced gen_releases.py