• David Johnson's avatar
    Send provider:physical_network attr from get_networks if net is shared. · 0162f233
    David Johnson authored
    The default Neutron policy is that the provider:* attributes are only
    sent on a get_networks() call if the caller is an admin.  Well, Capnet
    needs that attribute so it knows which Capnet bridge to put a virtual
    NIC into.  And it turns out that if a non-admin user adds a VM to an
    admin-owned shared network, when Nova sets up the VM, it calls out to
    Neutron to collect network info for the VM -- but it must be doing it as
    the tenant user -- not with its admin powers.  Well, we have to know
    this attribute... so we open up the policy a tiny bit to send the
    provider:physical_network attribute if the network is a shared network.
    
    So we override that default Neutron policy bit here.
    
    This is really the wrong thing to do, I suppose, because it leaks
    provider info through get_networks for shared networks.  But the
    alternative is to make a secondary call in our Nova plugin to
    get_networks() with admin creds, and that I don't have time for right
    now.
    
    (The bit of our Nova plugin that requires this is in
    compute_capnet/network/neutronv2/api.py .)
    Nova agent collected the port's network info
    0162f233
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