Thomas Riccardi 591f4efdfb Improve build cache miss doc for ARG and RUN ...

The documentation already says the cache miss happens only at `ARG`
variable usage, not declaration, but there is a very common implicit
usage: `RUN`, which this commit documents even more, improving on #21790.

Also, use `definition` instead of `declaration`: it's the same thing, and
`definition` is already used in this documentation, contrary to
`declaration`.

Also, distinguish between "instructions" and "variables defined by `ARG`
instructions".

Signed-off-by: Thomas Riccardi <riccardi@systran.fr>
Upstream-commit: 6ded7e8279
Component: cli

2017-06-02 00:07:36 +00:00

components/cli

Improve build cache miss doc for ARG and RUN

2017-06-02 00:07:36 +00:00

Description

No description provided

310 MiB

Languages

Go 92%

Shell 5.5%

Dockerfile 1.1%

Go-Checksums 0.9%

Makefile 0.3%

Other 0.2%