Michael A. Smith ed0cd8ff3b Distinguish ENV from setting environment inline ...

It's ambiguous to say that `ENV` is _functionally equivalent to prefixing the command with `<key>=<value>`_. `ENV` sets the environment for all future commands, but `RUN` can take chained commands like `RUN foo=bar bash -c 'echo $foo' && bash -c 'echo $foo $bar'`. Users with a solid understanding of `exec` may grok this without confusion, but less experienced users may need this distinction.

Signed-off-by: Michael A. Smith <msmith3@ebay.com>

Improve Environment Handling Descriptions

- Link `ENV` and `Environment Replacement`
- Improve side-effects of `ENV` text
- Rearrange avoiding side effects text

Signed-off-by: Michael A. Smith <msmith3@ebay.com>
Upstream-commit: 9f6e7e9aed85464651745090692317b30e4a3526
Component: engine

2015-02-02 14:55:25 -05:00

..

engine

Distinguish ENV from setting environment inline

2015-02-02 14:55:25 -05:00