Refreshed app-autoscaler base manifest switch #3199
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What
https://www.pivotaltracker.com/story/show/184549339
This involves moving almost all jobs out into their own instance groups and changing a lot of naming to be based on ((deployment_name)), meaning quite a bit of hostname adaptation etc.
It also currently points manifests/app-autoscaler/upstream at our own fork until cloudfoundry/app-autoscaler-release#1653 or a similar fix makes it upstream. Left as a draft until that happens (or we abandon all hope).
(This also means this is likely to bump to the latest autoscaler version once that happens so we can include that change)
How to review
Deploy to a dev env, see the autoscaler acceptance tests passing.
Check the dev env's alertmanager (https://alertmanager-1.) to ensure AppAutoscalingIsNotScalingSingleProc and AppAutoscalingIsNotScalingMultiProc alerts aren't going off.
馃毃鈿狅笍 Please do not merge this pull request via the GitHub UI 鈿狅笍 馃毃