> On April 26, 2017, 1:01 p.m., Ilya Pronin wrote:
> > We can check if we got a schema 1 manifest by parsing manifest JSON first 
> > and checking `schemaVersion` field in it as I did here: 
> > https://reviews.apache.org/r/53850/diff/1#0 Otherwise we may get a cryptic 
> > error message saying that some fields are missing. What do you think?
> 
> Jie Yu wrote:
>     Also related to https://reviews.apache.org/r/58725
>     
>     Maybe we should just land Ilya's scheme 2 support? Gilbert, thouughts?
> 
> Gilbert Song wrote:
>     Thank you guys.
>     
>     I think they are separate issues. There is a bug in the check after 
> reading the docker spec doc:
>     In https://docs.docker.com/registry/spec/manifest-v2-1/:
>     ```
>     Manifest Type     Media Type
>     manifest  “application/vnd.docker.distribution.manifest.v1+json”
>     signed manifest   
> “application/vnd.docker.distribution.manifest.v1+prettyjws”
>     Note that “application/json” will also be accepted for schema 1.
>     ```
>     
>     The check introduced in r/53848 does not capture the `Note` that 
> `“application/json” will also be accepted for schema 1`. This supposes to be 
> the backward compactible note for old registries < 2.3.
>     
>     I would +1 to land Ilya's schema 2 support, but it may not catch up with 
> 1.3 release. Should we land this quick fix first then land the schema 2 
> support?
> 
> Chun-Hung Hsiao wrote:
>     Do you guys prefer adding "application/json" into the integrity check, or 
> just remove this check?

@Chun, already added in the patch.


- Gilbert


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On April 26, 2017, 4:12 p.m., Gilbert Song wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/58747/
> -----------------------------------------------------------
> 
> (Updated April 26, 2017, 4:12 p.m.)
> 
> 
> Review request for mesos, Chun-Hung Hsiao, Ilya Pronin, and Jie Yu.
> 
> 
> Bugs: MESOS-7272
>     https://issues.apache.org/jira/browse/MESOS-7272
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> This check was introduced from this patch:
> https://reviews.apache.org/r/53848/
> 
> The check on registry v2 schema 1 is incorrect. It does not work
> for registries that are older version < 2.3, because the ContentType
> header may be something like this "application/json; charset=utf-8".
> The check missed a note from docker registry spec that
> "application/json" will also be accepted for schema 1.
> 
> Depending on the docker registry spec doc, docker support the
> following three media type for V2 schema 1 manifest:
>   1. application/vnd.docker.distribution.manifest.v1+json
>   2. application/vnd.docker.distribution.manifest.v1+prettyjws
>   3. application/json
> For more details, see:
>   https://docs.docker.com/registry/spec/manifest-v2-1/
> 
> 
> Diffs
> -----
> 
>   src/uri/fetchers/docker.cpp 1c6ab929deacfc29aa6b4f1df04c2b9782044a90 
> 
> 
> Diff: https://reviews.apache.org/r/58747/diff/2/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Gilbert Song
> 
>

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