This patch implements `docker build --secret id=mysecret,src=/secret/file`
for buildkit frontends that request the mysecret secret.
It is currently implemented in the tonistiigi/dockerfile:secrets20180808
frontend via RUN --mount=type=secret,id=mysecret
Signed-off-by: Tibor Vass <tibor@docker.com>
Upstream-commit: c4c4825591
Component: cli
removes the stevvooe/continuity dependency, which has moved to
containerd/continuity.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 197842fd45
Component: cli
