Open Stack

Thanks, Remo.

Are you saying that there's no pre-configuration of the network 
interfaces required for a packstack install?  I am using packstack. My 
packstack file is below.

Regarding neutron, I banged on it for a week or two and it seemed like 
serious overkill for a config with a single control host and one or two 
compute hosts with no network host.  I want to route tenant traffic for 
each compute box separately.   Neutron just seems like way more trouble 
than its worth for a very small implementation.  I got it to work for an 
allinone install, but the move to multiple hosts left me frustrated and 
disgusted.  Plus, we're a small shop and the obtuse nature of neutron 
networking led me to decide that it would be irresponsible to implement 
our cloud based on technology that was effectively unsupportable.  I'm 
sure neutron is just lovely if you have a team of network engineers 
available to support it.    The architecture that was requested of me is 
to have two hosts that handle everything and fail over for one another.  
We currently have one host running release 2.x for the past few years.  
When I started down this path, that's what we thought we'd be setting 
up.  Nova with flat networking is as close as I've been able to get to 
an architecture that uses few hosts, avoids the single point of failure 
network host and I could get it to work.

So, I'm still left with the question of how to pre-configure my 
network.  My approach again is to use my first nic (em1) with no ip, but 
as a member of the br100 bridge for primary tenant traffic.  The 2nd NIC 
will be used for mgmt/api and will get a standard IP and will reside on 
a separate private vlan.

We also want to have a back net which will carry traffic between, for 
example, the databases and the web servers, but which will not be 
accessible directly from the public network.  I think I can make that 
happen with another virtual network without too much problem.

Here's my packstack answers file.

[general]
CONFIG_SSH_KEY=/root/.ssh/id_rsa.pub
CONFIG_MYSQL_INSTALL=y
CONFIG_GLANCE_INSTALL=y
CONFIG_CINDER_INSTALL=y
CONFIG_NOVA_INSTALL=y
CONFIG_NEUTRON_INSTALL=n
CONFIG_HORIZON_INSTALL=y
CONFIG_SWIFT_INSTALL=y
CONFIG_CEILOMETER_INSTALL=y
CONFIG_HEAT_INSTALL=n
CONFIG_CLIENT_INSTALL=y
CONFIG_NTP_SERVERS=
CONFIG_NAGIOS_INSTALL=y
EXCLUDE_SERVERS=
CONFIG_DEBUG_MODE=y
CONFIG_VMWARE_BACKEND=n
CONFIG_VCENTER_HOST=
CONFIG_VCENTER_USER=
CONFIG_VCENTER_PASSWORD=
CONFIG_VCENTER_CLUSTER_NAME=
CONFIG_MYSQL_HOST=192.168.0.37
CONFIG_MYSQL_USER=root
CONFIG_MYSQL_PW=qweqwe
CONFIG_AMQP_SERVER=rabbitmq
CONFIG_AMQP_HOST=192.168.0.37
CONFIG_AMQP_ENABLE_SSL=n
CONFIG_AMQP_ENABLE_AUTH=n
CONFIG_AMQP_NSS_CERTDB_PW=qweqwe
CONFIG_AMQP_SSL_PORT=5671
CONFIG_AMQP_SSL_CERT_FILE=/etc/pki/tls/certs/amqp_selfcert.pem
CONFIG_AMQP_SSL_KEY_FILE=/etc/pki/tls/private/amqp_selfkey.pem
CONFIG_AMQP_SSL_SELF_SIGNED=y
CONFIG_AMQP_AUTH_USER=amqp_user
CONFIG_AMQP_AUTH_PASSWORD=10c8e15e798e494d
CONFIG_KEYSTONE_HOST=192.168.0.37
CONFIG_KEYSTONE_DB_PW=qweqwe
CONFIG_KEYSTONE_ADMIN_TOKEN=03bf026a2b9d42ec8556d07729740993
CONFIG_KEYSTONE_ADMIN_PW=qweqwe
CONFIG_KEYSTONE_DEMO_PW=qweqwe
CONFIG_KEYSTONE_TOKEN_FORMAT=PKI
CONFIG_GLANCE_HOST=192.168.0.37
CONFIG_GLANCE_DB_PW=qweqwe
CONFIG_GLANCE_KS_PW=qweqwe
CONFIG_CINDER_HOST=192.168.0.37
CONFIG_CINDER_DB_PW=qweqwe
CONFIG_CINDER_KS_PW=qweqwe
CONFIG_CINDER_BACKEND=lvm
CONFIG_CINDER_VOLUMES_CREATE=y
CONFIG_CINDER_VOLUMES_SIZE=20G
CONFIG_CINDER_GLUSTER_MOUNTS=
CONFIG_CINDER_NFS_MOUNTS=
CONFIG_NOVA_API_HOST=192.168.0.37
CONFIG_NOVA_CERT_HOST=192.168.0.37
CONFIG_NOVA_VNCPROXY_HOST=192.168.0.37
CONFIG_NOVA_COMPUTE_HOSTS=192.168.0.21
CONFIG_NOVA_CONDUCTOR_HOST=192.168.0.37
CONFIG_NOVA_DB_PW=qweqwe
CONFIG_NOVA_KS_PW=qweqwe
CONFIG_NOVA_SCHED_HOST=192.168.0.37
CONFIG_NOVA_SCHED_CPU_ALLOC_RATIO=16.0
CONFIG_NOVA_SCHED_RAM_ALLOC_RATIO=1.5
CONFIG_NOVA_COMPUTE_PRIVIF=em2
CONFIG_NOVA_NETWORK_HOSTS=192.168.0.21
CONFIG_NOVA_NETWORK_MANAGER=nova.network.manager.FlatDHCPManager
CONFIG_NOVA_NETWORK_PUBIF=em1
CONFIG_NOVA_NETWORK_PRIVIF=em2
CONFIG_NOVA_NETWORK_FIXEDRANGE=10.0.0.0/22
CONFIG_NOVA_NETWORK_FLOATRANGE=192.168.20.0/24
CONFIG_NOVA_NETWORK_DEFAULTFLOATINGPOOL=nova
CONFIG_NOVA_NETWORK_AUTOASSIGNFLOATINGIP=n
CONFIG_NOVA_NETWORK_VLAN_START=100
CONFIG_NOVA_NETWORK_NUMBER=1
CONFIG_NOVA_NETWORK_SIZE=254
CONFIG_NEUTRON_SERVER_HOST=192.168.0.37
CONFIG_NEUTRON_KS_PW=qweqwe
CONFIG_NEUTRON_DB_PW=qweqwe
CONFIG_NEUTRON_L3_HOSTS=192.168.0.37
CONFIG_NEUTRON_L3_EXT_BRIDGE=br-ex
CONFIG_NEUTRON_DHCP_HOSTS=192.168.0.37
CONFIG_NEUTRON_LBAAS_HOSTS=
CONFIG_NEUTRON_L2_PLUGIN=openvswitch
CONFIG_NEUTRON_METADATA_HOSTS=192.168.0.37
CONFIG_NEUTRON_METADATA_PW=qweqwe
CONFIG_NEUTRON_ML2_TYPE_DRIVERS=local
CONFIG_NEUTRON_ML2_TENANT_NETWORK_TYPES=local
CONFIG_NEUTRON_ML2_MECHANISM_DRIVERS=openvswitch
CONFIG_NEUTRON_ML2_FLAT_NETWORKS=*
CONFIG_NEUTRON_ML2_VLAN_RANGES=
CONFIG_NEUTRON_ML2_TUNNEL_ID_RANGES=
CONFIG_NEUTRON_ML2_VXLAN_GROUP=
CONFIG_NEUTRON_ML2_VNI_RANGES=
CONFIG_NEUTRON_L2_AGENT=openvswitch
CONFIG_NEUTRON_LB_TENANT_NETWORK_TYPE=local
CONFIG_NEUTRON_LB_VLAN_RANGES=
CONFIG_NEUTRON_LB_INTERFACE_MAPPINGS=
CONFIG_NEUTRON_OVS_TENANT_NETWORK_TYPE=vxlan
CONFIG_NEUTRON_OVS_VLAN_RANGES=physnet1
CONFIG_NEUTRON_OVS_BRIDGE_MAPPINGS=physnet1:br-ex
CONFIG_NEUTRON_OVS_BRIDGE_IFACES=
CONFIG_NEUTRON_OVS_TUNNEL_RANGES=1:3000
CONFIG_NEUTRON_OVS_TUNNEL_IF=eth1
CONFIG_NEUTRON_OVS_VXLAN_UDP_PORT=4789
CONFIG_OSCLIENT_HOST=192.168.0.37
CONFIG_HORIZON_HOST=192.168.0.37
CONFIG_HORIZON_SSL=n
CONFIG_SSL_CERT=
CONFIG_SSL_KEY=
CONFIG_SWIFT_PROXY_HOSTS=192.168.0.37
CONFIG_SWIFT_KS_PW=qweqwe
CONFIG_SWIFT_STORAGE_HOSTS=192.168.0.37
CONFIG_SWIFT_STORAGE_ZONES=1
CONFIG_SWIFT_STORAGE_REPLICAS=1
CONFIG_SWIFT_STORAGE_FSTYPE=ext4
CONFIG_SWIFT_HASH=606f14f8a4474af3
CONFIG_SWIFT_STORAGE_SIZE=2G
CONFIG_PROVISION_DEMO=n
CONFIG_PROVISION_TEMPEST=n
CONFIG_PROVISION_DEMO_FLOATRANGE=192.168.20.0/24
CONFIG_PROVISION_TEMPEST_REPO_URI=https://github.com/openstack/tempest.git
CONFIG_PROVISION_TEMPEST_REPO_REVISION=master
CONFIG_PROVISION_ALL_IN_ONE_OVS_BRIDGE=n
CONFIG_HEAT_HOST=192.168.0.37
CONFIG_HEAT_DB_PW=qweqwe
CONFIG_HEAT_AUTH_ENC_KEY=6282b556fce5463a
CONFIG_HEAT_KS_PW=qweqwe
CONFIG_HEAT_CLOUDWATCH_INSTALL=n
CONFIG_HEAT_CFN_INSTALL=n
CONFIG_HEAT_CLOUDWATCH_HOST=192.168.0.37
CONFIG_HEAT_CFN_HOST=192.168.0.37
CONFIG_CEILOMETER_HOST=192.168.0.37
CONFIG_CEILOMETER_SECRET=6393b48eeeea415e
CONFIG_CEILOMETER_KS_PW=qweqwe
CONFIG_MONGODB_HOST=192.168.0.37
CONFIG_NAGIOS_HOST=192.168.0.37
CONFIG_NAGIOS_PW=qweqwe
CONFIG_USE_EPEL=y
CONFIG_REPO=
CONFIG_RH_USER=
CONFIG_RH_PW=
CONFIG_RH_BETA_REPO=n
CONFIG_SATELLITE_URL=
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=



On 6/16/14, 4:33 PM, Remo Mattei wrote:
> Hi Eric,
> I would use packstack it works really well for what you need to do. 
> Any reasons why you want Nova Network vs Neutron?
>
> The only thing you need is make sure your two nics are up and running.
>
>
> On Jun 16, 2014, at 13:19, Eric Berg <eberg at rubensteintech.com 
> <mailto:eberg at rubensteintech.com>> wrote:
>
>> I'm trying to implement this architecture:
>>
>>   * RDO on CentOS 6.5 installed via packstack
>>   * nova networking.  Not neutron.
>>   * flat network
>>   * one control host (single NIC)
>>   * initially, one compute host with another to be added ( 2 NICs)
>>   * My internal office network is 192.168.0.0/16, and 192.168.20.0/24
>>     is dedicated to the floating IPs for our OpenStack cloud
>>
>> Much of the network documentation leaves out on which host the 
>> specific configs are to be done, so it's not clear to me how to 
>> prepare my hosts for openstack installation.  There are indications 
>> that some nics should have no IP address assigned but rather be part 
>> of a bridge which has the IP address, but the docs are vague about 
>> that and different architectures seem to need different configs.
>>
>> Packstack may be complicating things -- at least in my mind -- since 
>> I'm not sure what network configuration puppet is implementing via 
>> packstack and what I have to do before the install.
>>
>> My primary question is, "How do I set up my network before installation?"
>>
>> My Ethernet interfaces are em1 and em2.  Here's my understanding at 
>> this point:
>>
>>   * I will use em2 as the management interface, which I should
>>     configure with an IP address (already has this address...just
>>     leave this interface as is)
>>   * The em1 interface is the one that will interface with my VMs via
>>     a bridge (br100), so that interface should not have an IP
>>     address, because the bridge will.
>>
>> What parts of this have to be set up before the installation?
>>
>> Thanks!
>>
>> Eric
>>
>>

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