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    <div class="moz-cite-prefix">On 04/17/2014 02:15 AM, Reza
      Bakhshayeshi wrote:<br>
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cite="mid:CAMGoRG3X2gdvVP-5GZ-t1Kx5Gn+sqg-E0XqXJBgfXLBJijFMCw@mail.gmail.com"
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        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:#000066">Hi,</div>
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          style="font-family:tahoma,sans-serif;color:#000066"><br>
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        <div class="gmail_default"
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          I want to integrate an external service with keystone, in a
          way that only an authorized user in keystone could make access
          to that service.</div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:#000066">
          In the simplest form, consider it as a web service which
          receive the user's request and return a specific feature of
          his/her instance.</div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:#000066">
          Surely, users should be unable to see other's instance
          specifications, and must be authorized in the keystone.</div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:#000066">What do
          you think is the best way of performing this scenario?</div>
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    <br>
    Use RBAC, create a Role specific to your new service, and only
    assign that role to people that you trust.  Create a policy file
    that checks for that the calling user has that role before any
    operations. <br>
    <blockquote
cite="mid:CAMGoRG3X2gdvVP-5GZ-t1Kx5Gn+sqg-E0XqXJBgfXLBJijFMCw@mail.gmail.com"
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        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:#000066">Thanks,</div>
        <div class="gmail_default"
          style="font-family:tahoma,sans-serif;color:#000066">
          Reza</div>
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      <pre wrap="">_______________________________________________
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</pre>
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