The --builder flag was being ignored by imagetools because of pointer
problems. Essentially, because the root cmds aren't parsed immediately,
we need to pass a pointer to the builder string so that it can be
updated before the RunE function gets called.
Signed-off-by: Justin Chadwell <me@jedevc.com>
This allows all subcommands to use this flag.
Additionally reads the default value for the flag from the
`BUILDX_BUILDER` env var.
Precedence is:
CLI ARG > flag > env var > config file
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Currently the user can type `docker buildx` to use this tool.
This patch allows the user to install buildx as a `docker builder` alias.
As an additional benefit, this allows the regular `docker build` to hook
into `buildx build`.
Note that the install and uninstall commands are currently hidden.
Signed-off-by: Tibor Vass <tibor@docker.com>
CrazyMax