[MESOS-7427] Registry puller cannot fetch manifests from Amazon ECR: 405 Unsupported.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.1, 1.3.0
• Component/s: containerization
• Target Version/s: 1.2.1, 1.3.0
• Assignee: Chun-Hung Hsiao
• Reporter: Chun-Hung Hsiao
• Shepherd: Jie Yu
• Created: 26/Apr/17 00:14
• Updated: 05/May/17 22:07
• Resolved: 05/May/17 21:57

Description

When the registry puller is pulling a repository from Amazon ECR, a '405 Unsupported' error occurs when fetching manifests. The error message is as follows:

{"errors":[{"code":"UNSUPPORTED","message":"Invalid parameter at 'acceptedMediaTypes' failed to satisfy constraint: 'Member must satisfy constraint: [Member must satisfy regular expression pattern: \\w{1,127}\\/[-+.\\w]{1,127}]'"}]}}

The reason is that Amazon ECR checks the 'Accept' header strictly, which is not provided when fetching the manifests. See the following link for more details:
https://forums.aws.amazon.com/thread.jspa?threadID=254382