Session manager update & termination protection - v0.81-beta

[daidokoro]

This pull requests (v0.81-beta) adds the following features and bug fixes.

Bug Fixes

• Added errror checking to terminating stacks. Fixes intermittent stack trace during termination commands in shell-mode

Features

• region can now be specified in config for each stack as a keyword.

stacks:
  mystack:
    region: us-east-1
    source: some.template
    cf:
      some: value

As each stack will have it's own session, the stack_output gen-time template command can be used for cross-region output sharing, without the need to setting up a new AWS profile.

• Termination Protects can now be enabled for all stacks.

$ qaz protect --al --config some.yaml  # turns on protection for all
$ qaz protect --all --off --config some.yaml # turns off protection for all

Individual stacks can also be specified.

$ qaz protect mystack --config some.yaml

• git-status
  A git-status command has been added. This command allows you to check the status of a deployment by calling the config file on a Git Repo directly.

qaz git-status https://github.com/cfn-deployable/simplevpc

info: fetching git repo: [simplevpc]
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Counting objects: 14, done.
Total 14 (delta 0), reused 0 (delta 0), pack-reused 14
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create_pending -> vpc [qaz-project-vpc]