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| openstackgerrit | li,chen proposed openstack/manila: Implement versioned object for share export locations https://review.openstack.org/173692 | 02:22 |
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| openstackgerrit | OpenStack Proposal Bot proposed openstack/manila: Updated from global requirements https://review.openstack.org/197256 | 04:12 |
| openstackgerrit | li,chen proposed openstack/manila: Implement versioned object for share export locations https://review.openstack.org/173692 | 04:31 |
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| openstackgerrit | Valeriy Ponomaryov proposed openstack/manila: [DEBUG] Test Rally CI jobs with Manila https://review.openstack.org/188029 | 09:39 |
| openstackgerrit | Julia Varlamova proposed openstack/python-manilaclient: Add functional tests for access rules https://review.openstack.org/188751 | 09:39 |
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| ganso_ | vponomaryov: Hello | 13:05 |
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| vponomaryov | ganso_: ping | 16:02 |
| ganso_ | vponomaryov: pong | 16:03 |
| ganso_ | vponomaryov: hi | 16:03 |
| vponomaryov | ganso_: Hello | 16:03 |
| vponomaryov | ganso_: you were looking for me? | 16:04 |
| ganso_ | vponomaryov: my team is developing a driver and is facing a problem, I would like to ask you if you can help me or point someone that may be able to | 16:05 |
| vponomaryov | ganso_: what is the problem? | 16:06 |
| ganso_ | I have the following architecture: | 16:06 |
| ganso_ | vponomaryov: http://i.imgur.com/b0RQ2I2.jpg | 16:07 |
| ganso_ | vponomaryov: the problem is that, in order for the VMs in private networks to access the NAS server in a FLAT network, it requires a route entry in the NAS server for the packts to return | 16:08 |
| ganso_ | vponomaryov: when pinging the NAS server from the VMs I notice I do not get "Host unreachable", I get timeout | 16:08 |
| ganso_ | vponomaryov: after adding the route in the NAS server, it works | 16:09 |
| ganso_ | vponomaryov: it is unfeasible to have a cloud provider administrator add manually routes for each private network a tenant may create for a DHSS = false driver | 16:09 |
| ganso_ | vponomaryov: I am thinking about some sort of proxy or tunnel, I do not know if this is possible | 16:10 |
| ganso_ | vponomaryov: It is like if the router in the picture I sent you had a NAT, the NAS server would only need to the route to the router | 16:10 |
| ganso_ | vponomaryov: In fact, only the route to its nearest router | 16:10 |
| vponomaryov | ganso_: what restricts you to add such route from a driver? | 16:11 |
| ganso_ | vponomaryov: since you worked out some neutron magic in the generic driver and you suggested that a proxy for another scenario some time ago I wondered if you could help point me a solution | 16:11 |
| ganso_ | vponomaryov: in DHSS = true mode it is easy because the driver knows everything about the network | 16:12 |
| vponomaryov | right, in case DHSS=false Manila just do not do network actions | 16:12 |
| ganso_ | but in DHSS = false there are no share server or networks created from the driver | 16:12 |
| vponomaryov | ganso_: so, since Manila do not do network actions, why do you need "add rout each time"? | 16:14 |
| ganso_ | vponomaryov: when creating a share in DHSS = false, it does not matter the private network, since not even share networks are being used | 16:14 |
| ganso_ | vponomaryov: in the scenario like in the picture I sent you, a route is required to mount shares | 16:14 |
| vponomaryov | ganso: in case of DHSS=false, it is up-to admin of a cloud to make sure that all networks have access to NAS | 16:15 |
| ganso_ | vponomaryov: not only that, but multiple tenants creating private networks with the same address would conflict in the route entries in the NAS server | 16:15 |
| vponomaryov | ganso_: if segmentation is used then not | 16:16 |
| vponomaryov | does your NAS support segmentation? | 16:16 |
| ganso_ | is DHSS = false mode a possible scenario for a public cloud provider? I think the admin would go crazy | 16:16 |
| ganso_ | vponomaryov: pardon my ignorance, what do you mean by segmentation? VLAN? | 16:16 |
| vponomaryov | vlan, vxlan, gre ... | 16:17 |
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| ganso_ | vponomaryov: kinda, it supports VLAN in a limited way, but the route entries still conflict | 16:17 |
| vponomaryov | so, if your NAS does not support segmented networks but clients do use such, then it is problem, yes | 16:18 |
| vponomaryov | NetApp cDOT has same problem | 16:18 |
| vponomaryov | IP addresses should be unique even in different vlans | 16:18 |
| vponomaryov | then we can consider it as limitation of network design for a cloud using such storages | 16:19 |
| ganso_ | vponomaryov: hummm | 16:19 |
| ganso_ | vponomaryov: I am wondering if that, since the NAS server is inside openstack network through a neutron FLAT/VLAN network, if I could arrange a proxy or a tunnel inside openstack networks to work around this | 16:19 |
| ganso_ | vponomaryov: so I understand you are saying that there is not way, since NetApp also has not come up with a work around for this... | 16:20 |
| vponomaryov | ganso_: sure, usage of Neutron router can help | 16:20 |
| vponomaryov | but in that case networks stops to be private | 16:20 |
| vponomaryov | or in your case "private network" means "just-some-another-network-of-a-user"? | 16:21 |
| ganso_ | vponomaryov: humm what would that setup be? | 16:21 |
| ganso_ | vponomaryov: yes :) | 16:21 |
| ganso_ | vponomaryov: "just-some-another-network-of-a-user" | 16:21 |
| vponomaryov | create port in neutron | 16:22 |
| vponomaryov | use its data to your NAS | 16:22 |
| vponomaryov | then add network of this port to router and all user network too | 16:22 |
| vponomaryov | generic driver requires the same for default configuration | 16:23 |
| vponomaryov | that user network should be attached to public router | 16:23 |
| ganso_ | vponomaryov: great, the public router would be the one connected to the FLAT network | 16:24 |
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| ganso_ | vponomaryov: the FLAT network where the NAS server is | 16:24 |
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| ganso_ | vponomaryov: I am looking at https://wiki.openstack.org/wiki/Neutron/APIv2-specification#Create_Port | 16:26 |
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| vponomaryov | ganso_: but remember that there should be L2 connectivity between network node and your NAS | 16:30 |
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| ganso_ | vponomaryov: my NAS can have several network addresses, my devstack is in admin network which can ping my NAS, mount, etc and I create additional IP addresses to use for FLAT network in openstack | 16:32 |
| ganso_ | vponomaryov: are you saying that the packets are going to go through the admin network? | 16:32 |
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| vponomaryov | ganso_: I mean that to be able to use Neutron-defined network your hardware should have L2 connectivity with network node | 16:33 |
| vponomaryov | where Ip network is layer 3 | 16:33 |
| ganso_ | vponomaryov: yea, they are considered connected in the same switch | 16:34 |
| ganso_ | vponomaryov: What is exactly the name of this concept/purpose we are talking about, I am trying to look for an example | 16:36 |
| ganso_ | vponomaryov: this is not really forwarding, is it? | 16:36 |
| ganso_ | vponomaryov: is it a L2-Gateway? | 16:37 |
| vponomaryov | ganso_: yes, they should be connected via one switch | 16:38 |
| vponomaryov | ganso_: or shared switches | 16:38 |
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| ganso_ | vponomaryov: thanks for the help! | 17:50 |
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| openstackgerrit | Merged openstack/python-manilaclient: Updated from global requirements https://review.openstack.org/197279 | 18:24 |
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