Question regarding network-isolation heat template configuration

Solution In Progress - Updated -

Environment

  • Red Hat OpenStack 7.1 (RHOS)

Issue

What problem/issue/behavior are you having trouble with? What do you expect to see?

Hello,

I have installed a new OSP director node with the latest version 7.1 (released 8th of October)

There is a differenve between the previous version in the Heat templates for Network Isolation.

/home/stack/templates/my-overcloud/network/config/bond-with-vlans/controller.yaml
/home/stack/templates/my-overcloud/network/config/bond-with-vlans/compute.yaml.

I'm referencing to the actual documentaion at:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/7/html/Director_Installation_and_Usage/sect-Advanced-Scenario_3_Using_the_CLI_to_Create_an_Advanced_Overcloud_with_Ceph_Nodes.html#sect-Advanced-Isolating_all_Networks_into_VLANs

Question 1:

The following section in controller.yaml/compute.yaml is new with this version:

  config:
    os_net_config:
      network_config:
        -
          type: interface
          name: nic1
          use_dhcp: false
          addresses:
            -
              ip_netmask:
                list_join:
                  - '/'
                  - - {get_param: ControlPlaneIp}
                    - {get_param: ControlPlaneSubnetCidr}
          routes:
            -
              ip_netmask: 169.254.169.254/32

next_hop: {get_param: EC2MetadataIp}

Can you please explain which interface I have to specify in this section?
Is this the interface connected to the PXE/Provisioning LAN?

Question 2:

In the documentation (see reference above) the values for

  • ControlPlaneIp
  • ControlPlaneSubnetCidr

are not defined in the Network configuration file "network-environment.yaml.
Do I have to set these values or are these values set/known due to the undercloud installation?

Question3:

In the documentation there is an example "network-configation.yaml" file. Unfortuantely the explanation for the following parameter are not clear for me:

Gateway router for the provisioning network (or Undercloud IP)

ControlPlaneDefaultRoute: 192.0.2.254
# The IP address of the EC2 metadata server. Generally the IP of the Undercloud
EC2MetadataIp: 192.0.2.1

The EC2MetadataIp should be the IP of the director, but I don't know the value for

ControlPlaneDefaultRoute:

Can you please explain which IP address I have to set for this parameter?

Question 4:

In the documentatiojn at

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/7/html/Director_Installation_and_Usage/appe-Network_Environment_Options.html

there is no explanation for the new values. Did I miss something or is this a documenation bug?

[1] http://docs.openstack.org/developer/tripleo-docs/advanced_deployment/network_isolation.html

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