Open Stack

Dear Openstack users,

Can you please help to verify my configuration.


Regards
Gaurav Goyal


On Sun, Feb 12, 2017 at 8:29 PM, Gaurav Goyal <er.gauravgoyal at gmail.com>
wrote:

> Hi Dan,
>
> Thanks for your response!
>
> Can you please verify my configuration and suggest me for any change if
> required.
>
> should i do following changes   in my existing configuration?
>
> flat_networks = *
> bridge_mappings = external:br-ex,external1:br-ex1
> ovs-vsctl add-br br-ex1
> ovs-vsctl add-port br-ex *p5p3*
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> * - - /etc/neutron/plugins/ml2/ml2_conf.ini file and complete the
> following actions:1. 12345[ml2]...type_drivers =
> flat,vlan,gre,vxlantenant_network_types = gremechanism_drivers =
> openvswitch2. In the [ml2_type_flat]  123[ml2_type_flat]...flat_networks =
> external3. In the [ml2_type_gre] section,
> 123[ml2_type_gre]...tunnel_id_ranges = 1:1000 -
>  /etc/neutron/plugins/ml2/openvswitch_agent.ini [root at OSKVM1 ml2]# grep -v
> ^# openvswitch_agent.ini|grep -v ^$[ovs] local_ip = 10.24.0.4
> bridge_mappings = external:br-ex [agent] tunnel_types = gre - To configure
> the Layer-3 (L3) agentThe Layer-3 (L3) agent
> <http://docs.openstack.org/kilo/install-guide/install/yum/content/neutron-network-node.html> provides
> routing services for virtual networks.-  /etc/neutron/l3_agent.ini file 1.
> In the [DEFAULT] section,  12345[DEFAULT]...interface_driver =
> neutron.agent.linux.interface.OVSInterfaceDriverexternal_network_bridge
> =router_delete_namespaces = True NoteThe external_network_bridge option
> intentionally lacks a value to enable multiple external networks on a
> single agent.To configure the DHCP agentThe DHCP agent
> <http://docs.openstack.org/kilo/install-guide/install/yum/content/neutron-network-node.html> provides
> DHCP services for virtual networks. 1.  /etc/neutron/dhcp_agent.ini file1.
> In the [DEFAULT] section,  12345[DEFAULT]...interface_driver =
> neutron.agent.linux.interface.OVSInterfaceDriverdhcp_driver =
> neutron.agent.linux.dhcp.Dnsmasqdhcp_delete_namespaces = True 1.
>  /etc/neutron/dhcp_agent.ini file 1. In the [DEFAULT] section,
> 123[DEFAULT]...dnsmasq_config_file = /etc/neutron/dnsmasq-neutron.conf2.
> Created  /etc/neutron/dnsmasq-neutron.conf file and complete the following
> action:1. Enable the DHCP MTU option (26) and configure it to 1454 bytes:
> 1dhcp-option-force=26,1454To configure the metadata agentThe metadata agent
> <http://docs.openstack.org/kilo/install-guide/install/yum/content/neutron-network-node.html> provides
> configuration information such as credentials to instances. 1.
>  /etc/neutron/metadata_agent.ini file 1. In the [DEFAULT] section,
> 1234567891011[DEFAULT]...auth_uri = http://controller:5000auth_url =
> http://controller:35357auth_region = RegionOneauth_plugin =
> passwordproject_domain_id = defaultuser_domain_id = defaultproject_name =
> serviceusername = neutronpassword = NEUTRON_PASS In the [DEFAULT] section,
> configure the metadata host: 2. 123[DEFAULT]...nova_metadata_ip
> = controller3. 4. In the [DEFAULT] section, configure the metadata proxy
> shared secret: 123[DEFAULT]...metadata_proxy_shared_secret
> = METADATA_SECRET 1. Add the external bridge:2. # ovs-vsctl add-br br-ex3.
> Add a port to the external bridge that connects to the physical external
> network interface:Replace INTERFACE_NAME with the actual interface name.
> For example, eth2 or ens256.# ovs-vsctl add-port br-ex p5p2RegardsGaurav
> Goyal*
>
>
>
>
> On Fri, Feb 10, 2017 at 11:39 AM, Gaurav Goyal <er.gauravgoyal at gmail.com>
> wrote:
>
>> Hi,
>>
>> I need your help to configure multiple external networks in openstack
>> environment.
>>
>> I am using Liberty openstack.  openvswitch with gre tunneling.
>> I want to create multiple external networks so that all interfaces of my
>> VM can be accessible to outside world.
>> I need your help to config neutron for multiple external networks.
>>
>> should i do following changes   in my existing configuration?
>>
>> flat_networks = *
>> bridge_mappings = external:br-ex,external1:br-ex1
>> ovs-vsctl add-br br-ex1
>> ovs-vsctl add-port br-ex *p5p3*
>>
>> is it going to impact all existing VMs running in openstack environment?
>>
>>    -
>>       -
>>
>>       Edit the /etc/neutron/plugins/ml2/ml2_conf.ini file and complete
>>       the following actions:
>>       1.
>>
>>
>>
>>          1
>>          2
>>          3
>>          4
>>          5
>>          [ml2]
>>          ...
>>          type_drivers = flat,vlan,gre,vxlan
>>          tenant_network_types = gre
>>          mechanism_drivers = openvswitch
>>          2.
>>
>>          In the [ml2_type_flat]
>>
>>
>>          1
>>          2
>>          3
>>          [ml2_type_flat]
>>          ...
>>          flat_networks = external
>>          3.
>>
>>          In the [ml2_type_gre] section,
>>
>>
>>          1
>>          2
>>          3
>>          [ml2_type_gre]
>>          ...
>>          tunnel_id_ranges = 1:1000
>>
>>          -  /etc/neutron/plugins/ml2/openvswitch_agent.ini
>>
>>       [root at OSKVM1 ml2]# grep -v ^# openvswitch_agent.ini|grep -v ^$
>>
>>       [ovs]
>>       local_ip = 10.24.0.4
>>       bridge_mappings = external:br-ex
>>       [agent]
>>       tunnel_types = gre
>>
>>
>>    -
>>
>>    *To configure the Layer-3 (L3) agent*
>>
>>    The Layer-3 (L3) agent
>>    <http://docs.openstack.org/kilo/install-guide/install/yum/content/neutron-network-node.html> provides
>>    routing services for virtual networks.
>>    -
>>
>>        /etc/neutron/l3_agent.ini file
>>       1.
>>
>>          In the [DEFAULT] section,
>>
>>
>>          1
>>          2
>>          3
>>          4
>>          5
>>          [DEFAULT]
>>          ...
>>          interface_driver = neutron.agent.linux.interface.
>>          OVSInterfaceDriver
>>          external_network_bridge =
>>          router_delete_namespaces = True
>>
>>
>>
>>          Note
>>
>>          The external_network_bridge option intentionally lacks a value
>>          to enable multiple external networks on a single agent.
>>
>> *To configure the DHCP agent*
>>
>> The DHCP agent
>> <http://docs.openstack.org/kilo/install-guide/install/yum/content/neutron-network-node.html> provides
>> DHCP services for virtual networks.
>>
>>    1.
>>
>>     /etc/neutron/dhcp_agent.ini file
>>    1.
>>
>>       In the [DEFAULT] section,
>>
>>
>>       1
>>       2
>>       3
>>       4
>>       5
>>       [DEFAULT]
>>       ...
>>       interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
>>       dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
>>       dhcp_delete_namespaces = True
>>
>>
>>    1.
>>
>>     /etc/neutron/dhcp_agent.ini file
>>    1.
>>
>>       In the [DEFAULT] section,
>>
>>
>>       1
>>       2
>>       3
>>       [DEFAULT]
>>       ...
>>       dnsmasq_config_file = /etc/neutron/dnsmasq-neutron.conf
>>       2.
>>
>>    Created  /etc/neutron/dnsmasq-neutron.conf file and complete the
>>    following action:
>>    1.
>>
>>       Enable the DHCP MTU option (26) and configure it to 1454 bytes:
>>
>>
>>       1
>>       dhcp-option-force=26,1454
>>
>> *To configure the metadata agent*
>>
>> The metadata agent
>> <http://docs.openstack.org/kilo/install-guide/install/yum/content/neutron-network-node.html> provides
>> configuration information such as credentials to instances.
>>
>>    1.
>>
>>     /etc/neutron/metadata_agent.ini file
>>    1.
>>
>>       In the [DEFAULT] section,
>>
>>
>>       1
>>       2
>>       3
>>       4
>>       5
>>       6
>>       7
>>       8
>>       9
>>       10
>>       11
>>       [DEFAULT]
>>       ...
>>       auth_uri = http://controller:5000
>>       auth_url = http://controller:35357
>>       auth_region = RegionOne
>>       auth_plugin = password
>>       project_domain_id = default
>>       user_domain_id = default
>>       project_name = service
>>       username = neutron
>>       password = NEUTRON_PASS
>>
>>
>>       In the [DEFAULT] section, configure the metadata host:
>>       2.
>>
>>
>>       1
>>       2
>>       3
>>       [DEFAULT]
>>       ...
>>       nova_metadata_ip = controller
>>       3.
>>
>>
>>       4.
>>
>>       In the [DEFAULT] section, configure the metadata proxy shared
>>       secret:
>>
>>
>>       1
>>       2
>>       3
>>       [DEFAULT]
>>       ...
>>       metadata_proxy_shared_secret = METADATA_SECRET
>>
>>
>>
>>
>>
>>    1.
>>
>>    Add the external bridge:
>>    2.
>>
>>    # ovs-vsctl add-br br-ex
>>    3.
>>
>>    Add a port to the external bridge that connects to the physical
>>    external network interface:
>>
>>    Replace *INTERFACE_NAME* with the actual interface name. For example,
>>    *eth2* or *ens256*.
>>
>>    # ovs-vsctl add-port br-ex *p5p2*
>>
>>
>>
>> *Regards*
>> *Gaurav Goyal*
>>
>>
>>
>
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