Tuesday, October 27, 2015

VRRP four nodes setup on RDO Liberty (CentOS 7.1)

  Sample bellow demonstrates uninterrupted access, providing via HA Neutron router,  to cloud VMs  running on Compute node, when two installed Network Nodes node are swapping MASTER and BACKUP roles (as members of keepalived pair).

    Following bellow is brief instruction for 4 node deployment test Controller & 2xNetwork & Compute on RDO Liberty (CentOS 7.1), which was performed on Fedora 21 host with KVM/Libvirt Hypervisor  (32 GB RAM, Intel Core i7-4790  Haswell CPU, ASUS Z97-P ) .Four VMs (4 GB RAM, 4 VCPUS)  have been setup. Performing this setup I didn't have any problems with memory
swapping and did have problems with i7 CPU 4 CORES limitations.
 Actually , I am forced to to run packstack not because I love it so much ,
because I have no choice.

  Controller VM one (management subnet) VNIC, 2xNetwork Nodes VM three VNICS (management,vtep's external subnets),  Compute Node VM two VNICS (management,vtep's subnets)

Setup :-


192.169.142.127 - Controller Node
192.169.142.147,192.169.142.157 - Network Nodes
192.169.142.137 - Compute Node

*******************************************
Three Libvirt networks created
*******************************************


# cat openstackvms.xml
<network>
   <name>openstackvms</name>
   <uuid>d0e9964a-f91a-40c0-b769-a609aee41bf2</uuid>
   <forward mode='nat'>
     <nat>
       <port start='1024' end='65535'/>
     </nat>
   </forward>
   <bridge name='virbr1' stp='on' delay='0' />
   <mac address='52:54:00:60:f8:6d'/>
   <ip address='192.169.142.1' netmask='255.255.255.0'>
     <dhcp>
       <range start='192.169.142.2' end='192.169.142.254' />
     </dhcp>
   </ip>
 </network>



# cat external.xml
<network>
   <name>external</name>
   <uuid>d0e9965b-f92c-40c1-b749-b609aed42cf2</uuid>
   <forward mode='nat'>
     <nat>
       <port start='1024' end='65535'/>
     </nat>
   </forward>
   <bridge name='virbr2' stp='on' delay='0' />
   <mac address='52:54:00:60:f8:6d'/>
   <ip address='172.24.4.225' netmask='255.255.255.240'>
     <dhcp>
       <range start='172.24.4.226' end='172.24.4.238' />
     </dhcp>
   </ip>
&</network>


# cat vteps.xml
<network>
   <name>vteps</name>
   <uuid>d0e9965b-f92c-40c1-b749-b609aed42cf2</uuid>
   <forward mode='nat'>
     <nat>
       <port start='1024' end='65535'/>
     </nat>
   </forward>
   <bridge name='virbr3' stp='on' delay='0' />
   <mac address='52:54:00:60:f8:6d'/>
   <ip address='10.0.0.1' netmask='255.255.255.0'>
     <dhcp>
       <range start='10.0.0.1' end='10.0.0.254' />
     </dhcp>
   </ip>
 </network>

# virsh net-list

 Name                 State      Autostart     Persistent

--------------------------------------------------------------------------
 default               active        yes           yes
 openstackvms          active        yes           yes
 external              active        yes           yes
 vteps                 active        yes          yes
***********************************************************************************
1. First Libvirt subnet "openstackvms"  serves as management network.
All 4 VM are attached to this subnet
***********************************************************************************
2. Second Libvirt subnet "external" serves for simulation external network 
Network Nodes attached to "external",latter on "eth2" interfaces (belongs to "external") which are supposed to be converted into OVS ports of br-ex(s) on Network Nodes. This Libvirt subnet via bridge virbr2 172.24.4.25 provides VMs running on Compute Node access to Internet due to match to external network created by packstack installation 172.24.4.224/28.
***********************************************************************************
3. Third Libvirt subnet "vteps" serves  for VTEPs endpoint simulation. Network and Compute Nodes are attached to this subnet.
***********************************************************************************

***************************************
Answer file (answer4Node.txt)
***************************************
[general]
CONFIG_SSH_KEY=/root/.ssh/id_rsa.pub
CONFIG_DEFAULT_PASSWORD=
CONFIG_MARIADB_INSTALL=y
CONFIG_GLANCE_INSTALL=y
CONFIG_CINDER_INSTALL=y
CONFIG_MANILA_INSTALL=n
CONFIG_NOVA_INSTALL=y
CONFIG_NEUTRON_INSTALL=y
CONFIG_HORIZON_INSTALL=y
CONFIG_SWIFT_INSTALL=y
CONFIG_CEILOMETER_INSTALL=y
CONFIG_HEAT_INSTALL=n
CONFIG_SAHARA_INSTALL=n
CONFIG_TROVE_INSTALL=n
CONFIG_IRONIC_INSTALL=n
CONFIG_CLIENT_INSTALL=y
CONFIG_NTP_SERVERS=
CONFIG_NAGIOS_INSTALL=y
EXCLUDE_SERVERS=
CONFIG_DEBUG_MODE=n
CONFIG_CONTROLLER_HOST=192.169.142.127
CONFIG_COMPUTE_HOSTS=192.169.142.137
CONFIG_NETWORK_HOSTS=192.169.142.147,192.169.142.157

CONFIG_VMWARE_BACKEND=n
CONFIG_UNSUPPORTED=n
CONFIG_USE_SUBNETS=n
CONFIG_VCENTER_HOST=
CONFIG_VCENTER_USER=
CONFIG_VCENTER_PASSWORD=
CONFIG_VCENTER_CLUSTER_NAME=
CONFIG_STORAGE_HOST=192.169.142.127
CONFIG_SAHARA_HOST=192.169.142.127
CONFIG_USE_EPEL=y
CONFIG_REPO=
CONFIG_ENABLE_RDO_TESTING=n
CONFIG_RH_USER=
CONFIG_SATELLITE_URL=
CONFIG_RH_PW=
CONFIG_RH_OPTIONAL=y
CONFIG_RH_PROXY=
CONFIG_RH_PROXY_PORT=
CONFIG_RH_PROXY_USER=
CONFIG_RH_PROXY_PW=
CONFIG_SATELLITE_USER=
CONFIG_SATELLITE_PW=
CONFIG_SATELLITE_AKEY=
CONFIG_SATELLITE_CACERT=
CONFIG_SATELLITE_PROFILE=
CONFIG_SATELLITE_FLAGS=
CONFIG_SATELLITE_PROXY=
CONFIG_SATELLITE_PROXY_USER=
CONFIG_SATELLITE_PROXY_PW=
CONFIG_SSL_CACERT_FILE=/etc/pki/tls/certs/selfcert.crt
CONFIG_SSL_CACERT_KEY_FILE=/etc/pki/tls/private/selfkey.key
CONFIG_SSL_CERT_DIR=~/packstackca/
CONFIG_SSL_CACERT_SELFSIGN=y
CONFIG_SELFSIGN_CACERT_SUBJECT_C=--
CONFIG_SELFSIGN_CACERT_SUBJECT_ST=State
CONFIG_SELFSIGN_CACERT_SUBJECT_L=City
CONFIG_SELFSIGN_CACERT_SUBJECT_O=openstack
CONFIG_SELFSIGN_CACERT_SUBJECT_OU=packstack
CONFIG_SELFSIGN_CACERT_SUBJECT_CN=ip-192-169-142-127.ip.secureserver.net
CONFIG_SELFSIGN_CACERT_SUBJECT_MAIL=admin@ip-192-169-142-127.ip.secureserver.net
CONFIG_AMQP_BACKEND=rabbitmq
CONFIG_AMQP_HOST=192.169.142.127
CONFIG_AMQP_ENABLE_SSL=n
CONFIG_AMQP_ENABLE_AUTH=n
CONFIG_AMQP_NSS_CERTDB_PW=PW_PLACEHOLDER
CONFIG_AMQP_AUTH_USER=amqp_user
CONFIG_AMQP_AUTH_PASSWORD=PW_PLACEHOLDER
CONFIG_MARIADB_HOST=192.169.142.127
CONFIG_MARIADB_USER=root
CONFIG_MARIADB_PW=7207ae344ed04957
CONFIG_KEYSTONE_DB_PW=abcae16b785245c3
CONFIG_KEYSTONE_DB_PURGE_ENABLE=True
CONFIG_KEYSTONE_REGION=RegionOne
CONFIG_KEYSTONE_ADMIN_TOKEN=3ad2de159f9649afb0c342ba57e637d9
CONFIG_KEYSTONE_ADMIN_EMAIL=root@localhost
CONFIG_KEYSTONE_ADMIN_USERNAME=admin
CONFIG_KEYSTONE_ADMIN_PW=7049f834927e4468
CONFIG_KEYSTONE_DEMO_PW=bf737b785cfa4398
CONFIG_KEYSTONE_API_VERSION=v2.0
CONFIG_KEYSTONE_TOKEN_FORMAT=UUID
CONFIG_KEYSTONE_SERVICE_NAME=httpd
CONFIG_KEYSTONE_IDENTITY_BACKEND=sql
CONFIG_KEYSTONE_LDAP_URL=ldap://192.169.142.127
CONFIG_KEYSTONE_LDAP_USER_DN=
CONFIG_KEYSTONE_LDAP_USER_PASSWORD=
CONFIG_KEYSTONE_LDAP_SUFFIX=
CONFIG_KEYSTONE_LDAP_QUERY_SCOPE=one
CONFIG_KEYSTONE_LDAP_PAGE_SIZE=-1
CONFIG_KEYSTONE_LDAP_USER_SUBTREE=
CONFIG_KEYSTONE_LDAP_USER_FILTER=
CONFIG_KEYSTONE_LDAP_USER_OBJECTCLASS=
CONFIG_KEYSTONE_LDAP_USER_ID_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_NAME_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_MAIL_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_ENABLED_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_ENABLED_MASK=-1
CONFIG_KEYSTONE_LDAP_USER_ENABLED_DEFAULT=TRUE
CONFIG_KEYSTONE_LDAP_USER_ENABLED_INVERT=n
CONFIG_KEYSTONE_LDAP_USER_ATTRIBUTE_IGNORE=
CONFIG_KEYSTONE_LDAP_USER_DEFAULT_PROJECT_ID_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_ALLOW_CREATE=n
CONFIG_KEYSTONE_LDAP_USER_ALLOW_UPDATE=n
CONFIG_KEYSTONE_LDAP_USER_ALLOW_DELETE=n
CONFIG_KEYSTONE_LDAP_USER_PASS_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_ENABLED_EMULATION_DN=
CONFIG_KEYSTONE_LDAP_USER_ADDITIONAL_ATTRIBUTE_MAPPING=
CONFIG_KEYSTONE_LDAP_GROUP_SUBTREE=
CONFIG_KEYSTONE_LDAP_GROUP_FILTER=
CONFIG_KEYSTONE_LDAP_GROUP_OBJECTCLASS=
CONFIG_KEYSTONE_LDAP_GROUP_ID_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_GROUP_NAME_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_GROUP_MEMBER_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_GROUP_DESC_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_GROUP_ATTRIBUTE_IGNORE=
CONFIG_KEYSTONE_LDAP_GROUP_ALLOW_CREATE=n
CONFIG_KEYSTONE_LDAP_GROUP_ALLOW_UPDATE=n
CONFIG_KEYSTONE_LDAP_GROUP_ALLOW_DELETE=n
CONFIG_KEYSTONE_LDAP_GROUP_ADDITIONAL_ATTRIBUTE_MAPPING=
CONFIG_KEYSTONE_LDAP_USE_TLS=n
CONFIG_KEYSTONE_LDAP_TLS_CACERTDIR=
CONFIG_KEYSTONE_LDAP_TLS_CACERTFILE=
CONFIG_KEYSTONE_LDAP_TLS_REQ_CERT=demand
CONFIG_GLANCE_DB_PW=41264fc52ffd4fe8
CONFIG_GLANCE_KS_PW=f6a9398960534797
CONFIG_GLANCE_BACKEND=file
CONFIG_CINDER_DB_PW=5ac08c6d09ba4b69
CONFIG_CINDER_DB_PURGE_ENABLE=True
CONFIG_CINDER_KS_PW=c8cb1ecb8c2b4f6f
CONFIG_CINDER_BACKEND=lvm
CONFIG_CINDER_VOLUMES_CREATE=y
CONFIG_CINDER_VOLUMES_SIZE=10G
CONFIG_CINDER_GLUSTER_MOUNTS=
CONFIG_CINDER_NFS_MOUNTS=
CONFIG_CINDER_NETAPP_LOGIN=
CONFIG_CINDER_NETAPP_PASSWORD=
CONFIG_CINDER_NETAPP_HOSTNAME=
CONFIG_CINDER_NETAPP_SERVER_PORT=80
CONFIG_CINDER_NETAPP_STORAGE_FAMILY=ontap_cluster
CONFIG_CINDER_NETAPP_TRANSPORT_TYPE=http
CONFIG_CINDER_NETAPP_STORAGE_PROTOCOL=nfs
CONFIG_CINDER_NETAPP_SIZE_MULTIPLIER=1.0
CONFIG_CINDER_NETAPP_EXPIRY_THRES_MINUTES=720
CONFIG_CINDER_NETAPP_THRES_AVL_SIZE_PERC_START=20
CONFIG_CINDER_NETAPP_THRES_AVL_SIZE_PERC_STOP=60
CONFIG_CINDER_NETAPP_NFS_SHARES=
CONFIG_CINDER_NETAPP_NFS_SHARES_CONFIG=/etc/cinder/shares.conf
CONFIG_CINDER_NETAPP_VOLUME_LIST=
CONFIG_CINDER_NETAPP_VFILER=
CONFIG_CINDER_NETAPP_PARTNER_BACKEND_NAME=
CONFIG_CINDER_NETAPP_VSERVER=
CONFIG_CINDER_NETAPP_CONTROLLER_IPS=
CONFIG_CINDER_NETAPP_SA_PASSWORD=
CONFIG_CINDER_NETAPP_ESERIES_HOST_TYPE=linux_dm_mp
CONFIG_CINDER_NETAPP_WEBSERVICE_PATH=/devmgr/v2
CONFIG_CINDER_NETAPP_STORAGE_POOLS=
CONFIG_MANILA_DB_PW=PW_PLACEHOLDER
CONFIG_MANILA_KS_PW=PW_PLACEHOLDER
CONFIG_MANILA_BACKEND=generic
CONFIG_MANILA_NETAPP_DRV_HANDLES_SHARE_SERVERS=false
CONFIG_MANILA_NETAPP_TRANSPORT_TYPE=https
CONFIG_MANILA_NETAPP_LOGIN=admin
CONFIG_MANILA_NETAPP_PASSWORD=
CONFIG_MANILA_NETAPP_SERVER_HOSTNAME=
CONFIG_MANILA_NETAPP_STORAGE_FAMILY=ontap_cluster
CONFIG_MANILA_NETAPP_SERVER_PORT=443
CONFIG_MANILA_NETAPP_AGGREGATE_NAME_SEARCH_PATTERN=(.*)
CONFIG_MANILA_NETAPP_ROOT_VOLUME_AGGREGATE=
CONFIG_MANILA_NETAPP_ROOT_VOLUME_NAME=root
CONFIG_MANILA_NETAPP_VSERVER=
CONFIG_MANILA_GENERIC_DRV_HANDLES_SHARE_SERVERS=true
CONFIG_MANILA_GENERIC_VOLUME_NAME_TEMPLATE=manila-share-%s
CONFIG_MANILA_GENERIC_SHARE_MOUNT_PATH=/shares
CONFIG_MANILA_SERVICE_IMAGE_LOCATION=https://www.dropbox.com/s/vi5oeh10q1qkckh/ubuntu_1204_nfs_cifs.qcow2
CONFIG_MANILA_SERVICE_INSTANCE_USER=ubuntu
CONFIG_MANILA_SERVICE_INSTANCE_PASSWORD=ubuntu
CONFIG_MANILA_NETWORK_TYPE=neutron
CONFIG_MANILA_NETWORK_STANDALONE_GATEWAY=
CONFIG_MANILA_NETWORK_STANDALONE_NETMASK=
CONFIG_MANILA_NETWORK_STANDALONE_SEG_ID=
CONFIG_MANILA_NETWORK_STANDALONE_IP_RANGE=
CONFIG_MANILA_NETWORK_STANDALONE_IP_VERSION=4
CONFIG_MANILA_GLUSTERFS_SERVERS=
CONFIG_MANILA_GLUSTERFS_NATIVE_PATH_TO_PRIVATE_KEY=
CONFIG_MANILA_GLUSTERFS_VOLUME_PATTERN=
CONFIG_MANILA_GLUSTERFS_TARGET=
CONFIG_MANILA_GLUSTERFS_MOUNT_POINT_BASE=
CONFIG_MANILA_GLUSTERFS_NFS_SERVER_TYPE=gluster
CONFIG_MANILA_GLUSTERFS_PATH_TO_PRIVATE_KEY=
CONFIG_MANILA_GLUSTERFS_GANESHA_SERVER_IP=
CONFIG_IRONIC_DB_PW=PW_PLACEHOLDER
CONFIG_IRONIC_KS_PW=PW_PLACEHOLDER
CONFIG_NOVA_DB_PURGE_ENABLE=True
CONFIG_NOVA_DB_PW=1e1b5aeeeaf342a8
CONFIG_NOVA_KS_PW=d9583177a2444f06
CONFIG_NOVA_SCHED_CPU_ALLOC_RATIO=16.0
CONFIG_NOVA_SCHED_RAM_ALLOC_RATIO=1.5
CONFIG_NOVA_COMPUTE_MIGRATE_PROTOCOL=tcp
CONFIG_NOVA_COMPUTE_MANAGER=nova.compute.manager.ComputeManager
CONFIG_VNC_SSL_CERT=
CONFIG_VNC_SSL_KEY=
CONFIG_NOVA_COMPUTE_PRIVIF=
CONFIG_NOVA_NETWORK_MANAGER=nova.network.manager.FlatDHCPManager
CONFIG_NOVA_NETWORK_PUBIF=eth0
CONFIG_NOVA_NETWORK_PRIVIF=
CONFIG_NOVA_NETWORK_FIXEDRANGE=192.168.32.0/22
CONFIG_NOVA_NETWORK_FLOATRANGE=10.3.4.0/22
CONFIG_NOVA_NETWORK_AUTOASSIGNFLOATINGIP=n
CONFIG_NOVA_NETWORK_VLAN_START=100
CONFIG_NOVA_NETWORK_NUMBER=1
CONFIG_NOVA_NETWORK_SIZE=255
CONFIG_NEUTRON_KS_PW=808e36e154bd4cee
CONFIG_NEUTRON_DB_PW=0e2b927a21b44737
CONFIG_NEUTRON_L3_EXT_BRIDGE=br-ex
CONFIG_NEUTRON_METADATA_PW=a965cd23ed2f4502
CONFIG_LBAAS_INSTALL=n
CONFIG_NEUTRON_METERING_AGENT_INSTALL=n
CONFIG_NEUTRON_FWAAS=n
CONFIG_NEUTRON_VPNAAS=n
CONFIG_NEUTRON_ML2_TYPE_DRIVERS=vxlan
CONFIG_NEUTRON_ML2_TENANT_NETWORK_TYPES=vxlan
CONFIG_NEUTRON_ML2_MECHANISM_DRIVERS=openvswitch
CONFIG_NEUTRON_ML2_FLAT_NETWORKS=*
CONFIG_NEUTRON_ML2_VLAN_RANGES=
CONFIG_NEUTRON_ML2_TUNNEL_ID_RANGES=1001:2000
CONFIG_NEUTRON_ML2_VXLAN_GROUP=239.1.1.2
CONFIG_NEUTRON_ML2_VNI_RANGES=1001:2000
CONFIG_NEUTRON_L2_AGENT=openvswitch
CONFIG_NEUTRON_LB_INTERFACE_MAPPINGS=
CONFIG_NEUTRON_OVS_BRIDGE_MAPPINGS=physnet1:br-ex
CONFIG_NEUTRON_OVS_BRIDGE_IFACES=
CONFIG_NEUTRON_OVS_TUNNEL_IF=eth1
CONFIG_NEUTRON_OVS_VXLAN_UDP_PORT=4789
CONFIG_HORIZON_SSL=n
CONFIG_HORIZON_SECRET_KEY=33cade531a764c858e4e6c22488f379f
CONFIG_HORIZON_SSL_CERT=
CONFIG_HORIZON_SSL_KEY=
CONFIG_HORIZON_SSL_CACERT=
CONFIG_SWIFT_KS_PW=8f75bfd461234c30
CONFIG_SWIFT_STORAGES=
CONFIG_SWIFT_STORAGE_ZONES=1
CONFIG_SWIFT_STORAGE_REPLICAS=1
CONFIG_SWIFT_STORAGE_FSTYPE=ext4
CONFIG_SWIFT_HASH=a60aacbedde7429a
CONFIG_SWIFT_STORAGE_SIZE=2G
CONFIG_HEAT_DB_PW=PW_PLACEHOLDER
CONFIG_HEAT_AUTH_ENC_KEY=09e304c52d714220
CONFIG_HEAT_KS_PW=PW_PLACEHOLDER
CONFIG_HEAT_CLOUDWATCH_INSTALL=n
CONFIG_HEAT_CFN_INSTALL=n
CONFIG_HEAT_DOMAIN=heat
CONFIG_HEAT_DOMAIN_ADMIN=heat_admin
CONFIG_HEAT_DOMAIN_PASSWORD=PW_PLACEHOLDER
CONFIG_PROVISION_DEMO=y
CONFIG_PROVISION_TEMPEST=n
CONFIG_PROVISION_DEMO_FLOATRANGE=172.24.4.224/28
CONFIG_PROVISION_IMAGE_NAME=cirros
CONFIG_PROVISION_IMAGE_URL=http://download.cirros-cloud.net/0.3.3/cirros-0.3.3-x86_64-disk.img
CONFIG_PROVISION_IMAGE_FORMAT=qcow2
CONFIG_PROVISION_IMAGE_SSH_USER=cirros
CONFIG_PROVISION_TEMPEST_USER=
CONFIG_PROVISION_TEMPEST_USER_PW=PW_PLACEHOLDER
CONFIG_PROVISION_TEMPEST_FLOATRANGE=172.24.4.224/28
CONFIG_PROVISION_TEMPEST_REPO_URI=https://github.com/openstack/tempest.git
CONFIG_PROVISION_TEMPEST_REPO_REVISION=master
CONFIG_PROVISION_OVS_BRIDGE=n
CONFIG_CEILOMETER_SECRET=19ae0e7430174349
CONFIG_CEILOMETER_KS_PW=337b08d4b3a44753
CONFIG_CEILOMETER_COORDINATION_BACKEND=redis
CONFIG_MONGODB_HOST=192.169.142.127
CONFIG_REDIS_MASTER_HOST=192.169.142.127
CONFIG_REDIS_PORT=6379
CONFIG_REDIS_HA=n
CONFIG_REDIS_SLAVE_HOSTS=
CONFIG_REDIS_SENTINEL_HOSTS=
CONFIG_REDIS_SENTINEL_CONTACT_HOST=
CONFIG_REDIS_SENTINEL_PORT=26379
CONFIG_REDIS_SENTINEL_QUORUM=2
CONFIG_REDIS_MASTER_NAME=mymaster
CONFIG_SAHARA_DB_PW=PW_PLACEHOLDER
CONFIG_SAHARA_KS_PW=PW_PLACEHOLDER
CONFIG_TROVE_DB_PW=PW_PLACEHOLDER
CONFIG_TROVE_KS_PW=PW_PLACEHOLDER
CONFIG_TROVE_NOVA_USER=trove
CONFIG_TROVE_NOVA_TENANT=services
CONFIG_TROVE_NOVA_PW=PW_PLACEHOLDER
CONFIG_NAGIOS_PW=02f168ee8edd44e4
**************************************
At this point run on Controller:-
**************************************
 # yum -y  install centos-release-openstack-liberty
 # yum -y  install openstack-packstack
 # packstack --answer-file=./answer4Node.txt

***********************************************************
Upon completion on Network node 192.169.142.147
***********************************************************
[root@ip-192-169-142-147 network-scripts]# cat ifcfg-br-ex
DEVICE="br-ex"
BOOTPROTO="static"
IPADDR="172.24.4.229"
NETMASK="255.255.255.240"
DNS1="83.221.202.254"
BROADCAST="172.24.4.239"
GATEWAY="172.24.4.225"
NM_CONTROLLED="no"
TYPE="OVSIntPort"
OVS_BRIDGE=br-ex
DEVICETYPE="ovs"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="yes"
IPV6INIT=no

[root@ip-192-169-142-147 network-scripts]# cat ifcfg-eth2
DEVICE="eth2"
# HWADDR=00:22:15:63:E4:E2
ONBOOT="yes"
TYPE="OVSPort"
DEVICETYPE="ovs"
OVS_BRIDGE=br-ex
NM_CONTROLLED=no
IPV6INIT=no

***********************************************************
Upon completion on Network node 192.169.142.157
***********************************************************
[root@ip-192-169-142-147 network-scripts]# cat ifcfg-br-ex
DEVICE="br-ex"
BOOTPROTO="static"
IPADDR="172.24.4.230"
NETMASK="255.255.255.240"
DNS1="83.221.202.254"
BROADCAST="172.24.4.239"
GATEWAY="172.24.4.225"
NM_CONTROLLED="no"
TYPE="OVSIntPort"
OVS_BRIDGE=br-ex
DEVICETYPE="ovs"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="yes"
IPV6INIT=no

[root@ip-192-169-142-147 network-scripts]# cat ifcfg-eth2
DEVICE="eth2"
# HWADDR=00:22:15:63:E4:E2
ONBOOT="yes"
TYPE="OVSPort"
DEVICETYPE="ovs"
OVS_BRIDGE=br-ex
NM_CONTROLLED=no
IPV6INIT=no

*************************************************
Next step to performed on both Network Nodes :-
*************************************************
# chkconfig network on
# systemctl stop NetworkManager
# systemctl disable NetworkManager
# service network restart

*****************************************************
On each Network Node
*****************************************************
# systemctl start keepalived
# systemctl enable keepalived
****************************************************************************
On Controller and both Network Nodes
Update /etc/neutron/neutron.conf as follows
****************************************************************************
[DEFAULT]
 router_distributed = False
 l3_ha = True
 max_l3_agents_per_router = 2
 dhcp_agents_per_network  = 2
*****************************************************************************

All nodes restart




 ******************************************************************
Creating HA Neutron Router belongs tenant demo
******************************************************************
[root@ip-192-169-142-127 ~(keystone_admin)]# python
Python 2.7.5 (default, Jun 24 2015, 00:41:19)
[GCC 4.8.3 20140911 (Red Hat 4.8.3-9)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from keystoneclient.v2_0 import client
>>> token = '3ad2de159f9649afb0c342ba57e637d9'
>>> endpoint = 'http://192.169.142.127:35357/v2.0'
>>> keystone = client.Client(token=token, endpoint=endpoint)
>>>  keystone.tenants.list()
[<Tenant {u'enabled': True, u'description': u'Tenant for the openstack services', u'name': u'services', u'id': u'20d1f633cb384e07b9019cb01ee9f02c'}>, <Tenant {u'enabled': True, u'description': u'admin tenant', u'name': u'admin', u'id': u'cce9a541723a4c26b70b746bab051f6c'}>, <Tenant {u'enabled': True, u'description': u'default tenant', u'name': u'demo', u'id': u'd9d06a467fb54b6e9612cbb1a245c370'}>]
>>>
# neutron router-create --ha True --tenant_id  d9d06a467fb54b6e9612cbb1a245c370 RouterHA

Attach demo_network and external network to RouterHA



[root@ip-192-169-142-127 ~(keystone_admin)]# neutron l3-agent-list-hosting-router RouterHA
+--------------------------------------+----------------------------------------+----------------+-------+----------+
| id                                   | host                                   | admin_state_up | alive | ha_state |
+--------------------------------------+----------------------------------------+----------------+-------+----------+
| 1e8aec09-e4a4-473a-91c7-9771e0499b1c | ip-192-169-142-157.ip.secureserver.net | True           | :-)   | active   |
| 33b5ec51-33b6-49ee-b5bf-1c66c283b818 | ip-192-169-142-147.ip.secureserver.net | True           | :-)   | standby  |
+--------------------------------------+----------------------------------------+----------------+--
 
[root@ip-192-169-142-127 ~(keystone_admin)]# neutron agent-list | grep "147"
| 30c38f80-4dee-4144-a2aa-a088629f33fb | Metadata agent     | ip-192-169-142-147.ip.secureserver.net | :-)   | True           | neutron-metadata-agent    |
| 33b5ec51-33b6-49ee-b5bf-1c66c283b818 | L3 agent           | ip-192-169-142-147.ip.secureserver.net | :-)   | True           | neutron-l3-agent          |
| 8390e450-c5ff-4697-aff3-7cfd66873055 | Open vSwitch agent | ip-192-169-142-147.ip.secureserver.net | :-)   | True           | neutron-openvswitch-agent |
| d01a0e08-31ab-41d9-bf4b-11888d82bc41 | DHCP agent         | ip-192-169-142-147.ip.secureserver.net | :-)   | True           | neutron-dhcp-agent        |

[root@ip-192-169-142-127 ~(keystone_admin)]# neutron agent-list | grep "157"
| 1e8aec09-e4a4-473a-91c7-9771e0499b1c | L3 agent           | ip-192-169-142-157.ip.secureserver.net | :-)   | True           | neutron-l3-agent          |
| 84ce6181-1eaa-445b-8f14-e865c3658bad | DHCP agent         | ip-192-169-142-157.ip.secureserver.net | :-)   | True           | neutron-dhcp-agent        |
| bf54ed7a-e478-4e0f-b38a-612cc89af26c | Open vSwitch agent | ip-192-169-142-157.ip.secureserver.net | :-)   | True           | neutron-openvswitch-agent |
| f1a1d7fc-6cc2-44c0-9254-367d9dcbb74c | Metadata agent     | ip-192-169-142-157.ip.secureserver.net | :-)   | True           | neutron-metadata-agent    |

[root@ip-192-169-142-127 ~(keystone_admin)]# neutron router-show RouterHA
+-----------------------+--------------------------------------------------------------------------------------------+
| Field  | Value                |
+-----------------------+---------------------------------------------------------------------------------------------+
| admin_state_up | True
| distributed        | False
| external_gateway_info | {"network_id": "b87a1cdf-8635-424b-b986-347aa1b2d4a7", "enable_snat": true, "external_fixed_ips": [{"subnet_id": "65472e1a-f6ff-4549-b7e8-ab2010b88c69", "ip_address": "172.24.4.227"}]} |
| ha | True                   |
| id  | a4bdf550-76a5-4069-9d03-075b8668f3c5                  |
| name  | RouterHA                 |
| routes                |
| status   | ACTIVE              |
|tenant_id  | d9d06a467fb54b6e9612cbb1a245c370
+-----------------------+---------------------------------------------------------------------------------------------------+
  Verify VRRP advertisements from the master node HA interface IP address on the corresponding network interface:
  


  Verification status of neutron services  on each one of Network Nodes
 

  Runing VMs
  
     Connectivity verification
  

   Current MASTER is 192.169.142.157
  

   
   MASTER 192.169.142.157 stopped , 192.169.142.147 changing state from   BACKUP to MASTER
  


   Connectivity verification to 172.24.4.231
  


192.169.142.157 brought up again
 


      192.169.142.157 goes to MASTER State again due to 192.169.142.147 shutdown.
  
   **************************************
   Network node 192.169.142.147
   **************************************
   [root@ip-192-169-142-147 ~]# ovs-vsctl show
5b798479-567a-4d14-bbb7-d014e001307c
    Bridge br-tun
        fail_mode: secure
        Port "vxlan-0a00009d"
            Interface "vxlan-0a00009d"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="10.0.0.147", out_key=flow, remote_ip="10.0.0.157"}

        Port br-tun
            Interface br-tun
                type: internal
        Port "vxlan-0a000089"
            Interface "vxlan-0a000089"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="10.0.0.147", out_key=flow, remote_ip="10.0.0.137"}

        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
    Bridge br-int
        fail_mode: secure
        Port "tap9b85b5b7-4c"
            tag: 2
            Interface "tap9b85b5b7-4c"
                type: internal
        Port int-br-ex
            Interface int-br-ex
                type: patch
                options: {peer=phy-br-ex}
        Port "qr-299a4e77-af"
            tag: 2
            Interface "qr-299a4e77-af"
                type: internal
        Port br-int
            Interface br-int
                type: internal
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port "ha-3c63186b-f7"
            tag: 1
            Interface "ha-3c63186b-f7"
                type: internal
    Bridge br-ex
        Port "qg-c88a6f64-88"
            Interface "qg-c88a6f64-88"
                type: internal
        Port "eth2"
            Interface "eth2"
        Port br-ex
            Interface br-ex
                type: internal
        Port phy-br-ex
            Interface phy-br-ex
                type: patch
                options: {peer=int-br-ex}
    ovs_version: "2.4.0"
**************************************
Network node 192.169.142.157
**************************************
[root@ip-192-169-142-157 ~]# ovs-vsctl show
15fa30fd-6900-4de7-ac1b-69760ccdfa4f
    Bridge br-ex
        Port phy-br-ex
            Interface phy-br-ex
                type: patch
                options: {peer=int-br-ex}
        Port "eth2"
            Interface "eth2"
        Port "qg-c88a6f64-88"
            Interface "qg-c88a6f64-88"
                type: internal
        Port br-ex
            Interface br-ex
                type: internal
    Bridge br-tun
        fail_mode: secure
        Port "vxlan-0a000089"
            Interface "vxlan-0a000089"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="10.0.0.157", out_key=flow, remote_ip="10.0.0.137"}

        Port patch-int
            Interface patch-int
                type: patch
                options: {peer=patch-tun}
        Port br-tun
            Interface br-tun
                type: internal
        Port "vxlan-0a000093"
            Interface "vxlan-0a000093"
                type: vxlan
                options: {df_default="true", in_key=flow, local_ip="10.0.0.157", out_key=flow, remote_ip="10.0.0.147"}

    Bridge br-int
        fail_mode: secure
        Port patch-tun
            Interface patch-tun
                type: patch
                options: {peer=patch-int}
        Port br-int
            Interface br-int
                type: internal
        Port "ha-083e9c72-69"
            tag: 2
            Interface "ha-083e9c72-69"
                type: internal
        Port int-br-ex
            Interface int-br-ex
                type: patch
                options: {peer=phy-br-ex}
        Port "qr-299a4e77-af"
            tag: 1
            Interface "qr-299a4e77-af"
                type: internal
    ovs_version: "2.4.0"