A project to automate the windows image build

A collection of python scripts to use on a scheduled AWS lambda to:

• Clone, branch, update, and push an updated packer file from the machine-executor-images repo
• lambda will open a PR for windows-update/* branch
• when windows-update/* pr is opened workflow will notify #execution-teams about the PR being ready for merge
• when windows-update/* pr is merged to master workflow will trigger vm-service update lambda with image version names
• vm-service update lambda will clone, branch, and update the config.edn file with the new values
• vm-service update lambda will open PR for vm-service windows-update/* branch
• when windows-update/* pr is opened workflow will notify #execution-teams of PR being ready for merge
• when windows-update/* pr is merged to master, workflow will push a notification to #custeng-support #investigation and #execution-teams slack notifying of update

• windows update specific steps will trigger on windows-update/* titled branches
• workflow behaviour will depend on if it is a widnows-update/* push or merge to master

• where to gen github tokens from, shouldn't be linked to a single engineers creds, do we have CCI github bot creds?

Each lambda will use the whole hephaestus package, and an entry point module will determine the behaviour depending on how the lambda calls

All configuration data will be passed as environment variables:

• USERNAME : The git username to use for the git ops
• PASSWORD : The git password to use for the git ops

Calling requires a map of the images to their URL formatted as

  {"windows-server-2019-base" : "base",
   "windows-server-2019-nvidia-small" : "nvidia-small",
   "windows-server-2019-nvidia-medium" : "nvidia-medium",
   "windows-server-2019-nvidia-large" : "nvidia-large"}

Developed in a python3:buster where the project is attached as a bind, and the requirements.txt is loaded manually. Once CI is implemented the CI can take care of building a dev conatiner with the latest requirements and stick its somewhere

use draw.io to modify the image with the docs/windows-machine-updater.drawio file

• Finish writing machine-image updater script and tests
• Merge requirements.txt to one top level package
• Start on vm-service tests
• set up lambdas
  • possibly via terraform in execution-infrastructure, probs doesn't belong in our main terraform
• design lambda CLI implementation
• setup CCI workflows