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podman/docs/source/markdown/options/platform.md
Valentin Rothberg fbe2bd87b0 [CI:DOCS] elaborate on image lookups of foreign platforms 
After pulling/creating an image of a foreign platform, Podman will
happily use it when looking it up in the local storage and will not
pull down the image matching the host platform.

As discussed in #12682, the reasoning for it is Docker compatibility and
the fact that user already rely on the behavior.  While Podman is now
emitting a warning when an image is in use not matching the local
platform, the documentation was lacking that information.

Fixes: #15300
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
2022-08-22 16:38:20 +02:00

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--platform=OS/ARCH

Specify the platform for selecting the image. (Conflicts with --arch and --os) The --platform option can be used to override the current architecture and operating system. Unless overridden, subsequent lookups of the same image in the local storage will match this platform, regardless of the host.