image-index: remove platform.features field #672
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Can we still reserve the field name and mark it MUST NOT BE USED? |
Yes. |
This was referenced May 12, 2017
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@AkihiroSuda @vbatts Updated to be a reserved property. |
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LGTM |
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@opencontainers/image-spec-maintainers PTAL |
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LGTM |
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@stevvooe conflicts :( |
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@philips BAH!!! So close. Wait right there... |
While the intended use of the `platform.features` field was to express the availability of hardware instructions on CPUs, the practicality of expressing and implementing such a standard has been called into question. Much of the functionality is usually hidden deep within kernel code or is defined by hardware vendors in ways that will make the field unusable without future additions. Applications that can make use of such field will likely have other requirements on top of this field that are specific to a deployment. In that regard, it is best to remove this field and defer to hardware to make the decision about what can be run. Signed-off-by: Stephen J Day <stephen.day@docker.com>
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LGTM |
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@philips review please |
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LGTM |
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Thanks, folks! |
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While the intended use of the
platform.featuresfield was to expressthe availability of hardware instructions on CPUs, the practicality of
expressing and implementing such a standard has been called into
question. Much of the functionality is usually hidden deep within kernel
code or is defined by hardware vendors in ways that will make the field
unusable without future additions. Applications that can make use of such
field will likely have other requirements on top of this field that are
specific to a deployment.
In that regard, it is best to remove this field and defer to hardware to
make the decision about what can be run.
Signed-off-by: Stephen J Day stephen.day@docker.com
Closes #622