We have CF v214 with Diego deployed on AWS.

I am able to successfully create apps from Docker public repo, as per the apidocs, but, while creating apps from the Docker private repos, I see the below error from 'cf logs' when starting the app. 'appreciate any pointers.

[API/0] OUT Updated app with guid bcb8f363-xyz ({"route"=>"5af6948b-xyz"})
[API/0] OUT Updated app with guid bcb8f363-xyz ({"state"=>"STARTED"})
[STG/0] OUT Creating container
[STG/0] OUT Successfully created container
[STG/0] OUT Staging...
[STG/0] OUT Staging process started ...
[STG/0] ERR Staging process failed: Exit trace for group:
[STG/0] ERR builder exited with error: failed to fetch metadata from [adobecloud/go-app] with tag [latest] and insecure registries [] due to HTTP code: 404
[STG/0] OUT Exit status 2
[STG/0] ERR Staging Failed: Exited with status 2
[API/0] ERR Failed to stage application: staging failed


cf curl command for reference.

cf curl /v2/apps -X POST -H "Content-Type: application/json" -H "Authorization: bearer *accessToken*" -d '
{"name": "myapp",
"space_guid": "71b22eba-xyz",
"docker_image": "adobecloud/go-app",
"diego": true,
"docker_credentials_json":
{"docker_login_server": "https://index.docker.io/v1/",
"docker_user": ":dockerid",
"docker_password": ":dockerpwd",
"docker_email": ":email"
}
}'

Looking at the apidocs, the 'Example value' for 'docker_credentials_json' indicates a Hash value (#<RspecApiDocumentation::Views::HtmlExample:0x0000000bb883e0>), but looking inside the code, 'found the below JSON format.

let(:docker_credentials) do
{
docker_login_server: login_server,
docker_user: user,
docker_password: password,
docker_email: email
}

Pls correct me if I am missing something.

Thanks,
Dharmi