There has been a lot of discussion (issues 4242 and 5262) about making
`FROM scratch` either a special case or making `FROM` optional, implying
starting from an empty file system.
This patch makes the build command `FROM scratch` special cased from now on
and if used does not pull/set the the initial layer of the build to the ancient
image ID (511136ea..) but instead marks the build as having no base image. The
next command in the dockerfile will create an image with a parent image ID of "".
This means every image ever can now use one fewer layer!
This also makes the image name `scratch` a reserved name by the TagStore. You
will not be able to tag an image with this name from now on. If any users
currently have an image tagged as `scratch`, they will still be able to use that
image, but will not be able to tag a new image with that name.
Goodbye '511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158',
it was nice knowing you.
Fixes#4242
Docker-DCO-1.1-Signed-off-by: Josh Hawn <josh.hawn@docker.com> (github: jlhawn)
Upstream-commit: 8936789919c5c8004f346f44a3452d1521818b60
Component: engine
Remove deprecated cmd function in integration-cli
and change cmd to dockerCmd in all test files
Signed-off-by: Daehyeok Mun <daehyeok@gmail.com>
Upstream-commit: 7fbbd515b1018721e91199960d1933383a8262a1
Component: engine
Common patterns:
- Multiple images were built with same name but only one cleanup.
- Containers were deleted after images.
- Images not removed after retagging.
Signed-off-by: Tõnis Tiigi <tonistiigi@gmail.com> (github: tonistiigi)
Upstream-commit: da3d3b97ebe1e6fe1254367521c725ca12a5e61d
Component: engine
Docker-DCO-1.1-Signed-off-by: Samuel Reis <srijs@airpost.net> (github: srijs)
Upstream-commit: 560eb07009d65fbcfb49b2fa8b04a2e3f4d647e8
Component: engine
Docker-DCO-1.1-Signed-off-by: Samuel Reis <srijs@airpost.net> (github: srijs)
Upstream-commit: 46747963b603a5573a0b26dcef407a96757926e7
Component: engine
