Chapter 5. Ansible-based overcloud registration

Director uses Ansible-based methods to register overcloud nodes to the Red Hat Customer Portal or to a Red Hat Satellite Server.

If you used the rhel-registration method from previous Red Hat OpenStack Platform versions, you must disable it and switch to the Ansible-based method. For more information, see Section 5.6, “Switching to the rhsm composable service” and Section 5.7, “rhel-registration to rhsm mappings”.

In addition to the director-based registration method, you can also manually register after deployment. For more information, see Section 5.9, “Running Ansible-based registration manually”

5.1. Red Hat Subscription Manager (RHSM) composable service

You can use the rhsm composable service to register overcloud nodes through Ansible. Each role in the default roles_data file contains a OS::TripleO::Services::Rhsm resource, which is disabled by default. To enable the service, register the resource to the rhsm composable service file:

resource_registry:
  OS::TripleO::Services::Rhsm: /usr/share/openstack-tripleo-heat-templates/deployment/rhsm/rhsm-baremetal-ansible.yaml

The rhsm composable service accepts a RhsmVars parameter, which you can use to define multiple sub-parameters relevant to your registration:

parameter_defaults:
  RhsmVars:
    rhsm_repos:
      - rhel-8-for-x86_64-baseos-eus-rpms
      - rhel-8-for-x86_64-appstream-eus-rpms
      - rhel-8-for-x86_64-highavailability-eus-rpms
      …​
    rhsm_username: "myusername"
    rhsm_password: "p@55w0rd!"
    rhsm_org_id: "1234567"
    rhsm_release: 8.4

You can also use the RhsmVars parameter in combination with role-specific parameters, for example, ControllerParameters, to provide flexibility when enabling specific repositories for different nodes types.

5.2. RhsmVars sub-parameters

Use the following sub-parameters as part of the RhsmVars parameter when you configure the rhsm composable service. For more information about the Ansible parameters that are available, see the role documentation.

rhsmDescription

rhsm_method

Choose the registration method. Either portal, satellite, or disable.

rhsm_org_id

The organization that you want to use for registration. To locate this ID, run sudo subscription-manager orgs from the undercloud node. Enter your Red Hat credentials at the prompt, and use the resulting Key value. For more information on your organization ID, see "Understanding the Red Hat Subscription Management Organization ID ".

rhsm_pool_ids

The subscription pool ID that you want to use. Use this parameter if you do not want to auto-attach subscriptions. To locate this ID, run sudo subscription-manager list --available --all --matches="*Red Hat OpenStack*" from the undercloud node, and use the resulting Pool ID value.

rhsm_activation_key

The activation key that you want to use for registration.

rhsm_autosubscribe

Use this parameter to attach compatible subscriptions to this system automatically. Set the value to true to enable this feature.

rhsm_baseurl

The base URL for obtaining content. The default URL is the Red Hat Content Delivery Network. If you use a Satellite server, change this value to the base URL of your Satellite server content repositories.

rhsm_server_hostname

The hostname of the subscription management service for registration. The default is the Red Hat Subscription Management hostname. If you use a Satellite server, change this value to your Satellite server hostname.

rhsm_repos

A list of repositories that you want to enable.

rhsm_username

The username for registration. If possible, use activation keys for registration.

rhsm_password

The password for registration. If possible, use activation keys for registration.

rhsm_release

Red Hat Enterprise Linux release for pinning the repositories. This is set to 8.4 for Red Hat OpenStack Platform

rhsm_rhsm_proxy_hostname

The hostname for the HTTP proxy. For example: proxy.example.com.

rhsm_rhsm_proxy_port

The port for HTTP proxy communication. For example: 8080.

rhsm_rhsm_proxy_user

The username to access the HTTP proxy.

rhsm_rhsm_proxy_password

The password to access the HTTP proxy.

Important

You can use rhsm_activation_key and rhsm_repos together only if rhsm_method is set to portal. If rhsm_method is set to satellite, you can only use either rhsm_activation_key or rhsm_repos.

5.3. Registering the overcloud with the rhsm composable service

Create an environment file that enables and configures the rhsm composable service. Director uses this environment file to register and subscribe your nodes.

Procedure

  1. Create an environment file named templates/rhsm.yml to store the configuration.
  2. Include your configuration in the environment file. For example:

    resource_registry:
      OS::TripleO::Services::Rhsm: /usr/share/openstack-tripleo-heat-templates/deployment/rhsm/rhsm-baremetal-ansible.yaml
    parameter_defaults:
      RhsmVars:
        rhsm_repos:
          - rhel-8-for-x86_64-baseos-eus-rpms
          - rhel-8-for-x86_64-appstream-eus-rpms
          - rhel-8-for-x86_64-highavailability-eus-rpms
          …​
        rhsm_username: "myusername"
        rhsm_password: "p@55w0rd!"
        rhsm_org_id: "1234567"
        rhsm_pool_ids: "1a85f9223e3d5e43013e3d6e8ff506fd"
        rhsm_method: "portal"
        rhsm_release: 8.4
    • The resource_registry section associates the rhsm composable service with the OS::TripleO::Services::Rhsm resource, which is available on each role.
    • The RhsmVars variable passes parameters to Ansible for configuring your Red Hat registration.
  3. Save the environment file.

5.4. Applying the rhsm composable service to different roles

You can apply the rhsm composable service on a per-role basis. For example, you can apply different sets of configurations to Controller nodes, Compute nodes, and Ceph Storage nodes.

Procedure

  1. Create an environment file named templates/rhsm.yml to store the configuration.
  2. Include your configuration in the environment file. For example:

    resource_registry:
      OS::TripleO::Services::Rhsm: /usr/share/openstack-tripleo-heat-templates/deployment/rhsm/rhsm-baremetal-ansible.yaml
    parameter_defaults:
      ControllerParameters:
        RhsmVars:
          rhsm_repos:
            - rhel-8-for-x86_64-baseos-eus-rpms
            - rhel-8-for-x86_64-appstream-eus-rpms
            - rhel-8-for-x86_64-highavailability-eus-rpms
            - ansible-2.9-for-rhel-8-x86_64-rpms
            - advanced-virt-for-rhel-8-x86_64-rpms
            - openstack-16.2-for-rhel-8-x86_64-rpms
            - fast-datapath-for-rhel-8-x86_64-rpms
          rhsm_username: "myusername"
          rhsm_password: "p@55w0rd!"
          rhsm_org_id: "1234567"
          rhsm_pool_ids: "55d251f1490556f3e75aa37e89e10ce5"
          rhsm_method: "portal"
          rhsm_release: 8.4
      ComputeParameters:
        RhsmVars:
          rhsm_repos:
            - rhel-8-for-x86_64-baseos-eus-rpms
            - rhel-8-for-x86_64-appstream-eus-rpms
            - rhel-8-for-x86_64-highavailability-eus-rpms
            - ansible-2.9-for-rhel-8-x86_64-rpms
            - advanced-virt-for-rhel-8-x86_64-rpms
            - openstack-16.2-for-rhel-8-x86_64-rpms
            - fast-datapath-for-rhel-8-x86_64-rpms
          rhsm_username: "myusername"
          rhsm_password: "p@55w0rd!"
          rhsm_org_id: "1234567"
          rhsm_pool_ids: "55d251f1490556f3e75aa37e89e10ce5"
          rhsm_method: "portal"
          rhsm_release: 8.4
      CephStorageParameters:
        RhsmVars:
          rhsm_repos:
            - rhel-8-for-x86_64-baseos-rpms
            - rhel-8-for-x86_64-appstream-rpms
            - rhel-8-for-x86_64-highavailability-rpms
            - ansible-2.9-for-rhel-8-x86_64-rpms
            - openstack-16.2-deployment-tools-for-rhel-8-x86_64-rpms
          rhsm_username: "myusername"
          rhsm_password: "p@55w0rd!"
          rhsm_org_id: "1234567"
          rhsm_pool_ids: "68790a7aa2dc9dc50a9bc39fabc55e0d"
          rhsm_method: "portal"
          rhsm_release: 8.4

    The resource_registry associates the rhsm composable service with the OS::TripleO::Services::Rhsm resource, which is available on each role.

    The ControllerParameters, ComputeParameters, and CephStorageParameters parameters each use a separate RhsmVars parameter to pass subscription details to their respective roles.

    Note

    Set the RhsmVars parameter within the CephStorageParameters parameter to use a Red Hat Ceph Storage subscription and repositories specific to Ceph Storage. Ensure the rhsm_repos parameter contains the standard Red Hat Enterprise Linux repositories instead of the Extended Update Support (EUS) repositories that Controller and Compute nodes require.

  3. Save the environment file.

5.5. Registering the overcloud to Red Hat Satellite Server

Create an environment file that enables and configures the rhsm composable service to register nodes to Red Hat Satellite instead of the Red Hat Customer Portal.

Procedure

  1. Create an environment file named templates/rhsm.yml to store the configuration.
  2. Include your configuration in the environment file. For example:

    resource_registry:
      OS::TripleO::Services::Rhsm: /usr/share/openstack-tripleo-heat-templates/deployment/rhsm/rhsm-baremetal-ansible.yaml
    parameter_defaults:
      RhsmVars:
        rhsm_activation_key: "myactivationkey"
        rhsm_method: "satellite"
        rhsm_org_id: "ACME"
        rhsm_server_hostname: "satellite.example.com"
        rhsm_baseurl: "https://satellite.example.com/pulp/repos"
        rhsm_release: 8.4

    The resource_registry associates the rhsm composable service with the OS::TripleO::Services::Rhsm resource, which is available on each role.

    The RhsmVars variable passes parameters to Ansible for configuring your Red Hat registration.

  3. Save the environment file.

5.6. Switching to the rhsm composable service

The previous rhel-registration method runs a bash script to handle the overcloud registration. The scripts and environment files for this method are located in the core heat template collection at /usr/share/openstack-tripleo-heat-templates/extraconfig/pre_deploy/rhel-registration/.

Complete the following steps to switch from the rhel-registration method to the rhsm composable service.

Procedure

  1. Exclude the rhel-registration environment files from future deployments operations. In most cases, exclude the following files:

    • rhel-registration/environment-rhel-registration.yaml
    • rhel-registration/rhel-registration-resource-registry.yaml
  2. If you use a custom roles_data file, ensure that each role in your roles_data file contains the OS::TripleO::Services::Rhsm composable service. For example:

    - name: Controller
      description: |
        Controller role that has all the controller services loaded and handles
        Database, Messaging and Network functions.
      CountDefault: 1
      ...
      ServicesDefault:
        ...
        - OS::TripleO::Services::Rhsm
        ...
  3. Add the environment file for rhsm composable service parameters to future deployment operations.

This method replaces the rhel-registration parameters with the rhsm service parameters and changes the heat resource that enables the service from:

resource_registry:
  OS::TripleO::NodeExtraConfig: rhel-registration.yaml

To:

resource_registry:
  OS::TripleO::Services::Rhsm: /usr/share/openstack-tripleo-heat-templates/deployment/rhsm/rhsm-baremetal-ansible.yaml

You can also include the /usr/share/openstack-tripleo-heat-templates/environments/rhsm.yaml environment file with your deployment to enable the service.

5.7. rhel-registration to rhsm mappings

To help transition your details from the rhel-registration method to the rhsm method, use the following table to map your parameters and values.

rhel-registrationrhsm / RhsmVars

rhel_reg_method

rhsm_method

rhel_reg_org

rhsm_org_id

rhel_reg_pool_id

rhsm_pool_ids

rhel_reg_activation_key

rhsm_activation_key

rhel_reg_auto_attach

rhsm_autosubscribe

rhel_reg_sat_url

rhsm_satellite_url

rhel_reg_repos

rhsm_repos

rhel_reg_user

rhsm_username

rhel_reg_password

rhsm_password

rhel_reg_release

rhsm_release

rhel_reg_http_proxy_host

rhsm_rhsm_proxy_hostname

rhel_reg_http_proxy_port

rhsm_rhsm_proxy_port

rhel_reg_http_proxy_username

rhsm_rhsm_proxy_user

rhel_reg_http_proxy_password

rhsm_rhsm_proxy_password

5.8. Deploying the overcloud with the rhsm composable service

Deploy the overcloud with the rhsm composable service so that Ansible controls the registration process for your overcloud nodes.

Procedure

  1. Include rhsm.yml environment file with the openstack overcloud deploy command:

    openstack overcloud deploy \
        <other cli args> \
        -e ~/templates/rhsm.yaml

    This enables the Ansible configuration of the overcloud and the Ansible-based registration.

  2. Wait until the overcloud deployment completes.
  3. Check the subscription details on your overcloud nodes. For example, log in to a Controller node and run the following commands:

    $ sudo subscription-manager status
    $ sudo subscription-manager list --consumed

5.9. Running Ansible-based registration manually

You can perform manual Ansible-based registration on a deployed overcloud with the dynamic inventory script on the director node. Use this script to define node roles as host groups and then run a playbook against them with ansible-playbook. Use the following example playbook to register Controller nodes manually.

Procedure

  1. Create a playbook that uses the redhat_subscription modules to register your nodes. For example, the following playbook applies to Controller nodes:

    ---
    - name: Register Controller nodes
      hosts: Controller
      become: yes
      vars:
        repos:
          - rhel-8-for-x86_64-baseos-eus-rpms
          - rhel-8-for-x86_64-appstream-eus-rpms
          - rhel-8-for-x86_64-highavailability-eus-rpms
          - ansible-2.9-for-rhel-8-x86_64-rpms
          - advanced-virt-for-rhel-8-x86_64-rpms
          - openstack-16.2-for-rhel-8-x86_64-rpms
          - fast-datapath-for-rhel-8-x86_64-rpms
      tasks:
        - name: Register system
          redhat_subscription:
            username: myusername
            password: p@55w0rd!
            org_id: 1234567
            release: 8.4
            pool_ids: 1a85f9223e3d5e43013e3d6e8ff506fd
        - name: Disable all repos
          command: "subscription-manager repos --disable *"
        - name: Enable Controller node repos
          command: "subscription-manager repos --enable {{ item }}"
          with_items: "{{ repos }}"
    • This play contains three tasks:

      • Register the node.
      • Disable any auto-enabled repositories.
      • Enable only the repositories relevant to the Controller node. The repositories are listed with the repos variable.
  2. After you deploy the overcloud, you can run the following command so that Ansible executes the playbook (ansible-osp-registration.yml) against your overcloud:

    $ ansible-playbook -i /usr/bin/tripleo-ansible-inventory ansible-osp-registration.yml

    This command performs the following actions:

    • Runs the dynamic inventory script to get a list of host and their groups.
    • Applies the playbook tasks to the nodes in the group defined in the hosts parameter of the playbook, which in this case is the Controller group.