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Remove unnecessary dependencies between stack and lifecycle #14

Closed ekcasey closed 6 years ago

ekcasey commented 6 years ago

Lifecycle changes

Defaults (hardcoded)

Given any present or missing PACK_* env variables in the stack images When I call /lifecycle/* with no command line flags Then default values will be as follows

Overriding defaults (cli flags only)

All of these values should be configurable with command line flags

pack cli changes

Always provides values with command line flags, even if these values match the defaults

Spec

Document new cli flags on lifecycle components where they are missing e.g. /lifecycle/builder -launch Document required env vars the stack must provide