IMS - Pre Migration for RHEL

This role configures the Red Hat Enterprise Linux virtual machine for migration:

• It adds udev rules to enforce network interface naming
• It installs the guest agent for oVirt / Red Hat Virtualization

Role Variables

The role behaviour can be influenced via some variables that are mainly wrappers for the module used in the role. By default, no variable is set and the role will expect that RPM repositories are already setup on the host.

If, repositories are not configured yet on the host, one can use the following variables to configure them. Three configuration methods can be used: RHN (based on Red Hat Satellite 5 / Spacewalk), RHSM (based on Red Hat Satellite 6 / Katello) and .repo files pointing to local repositories.

• RHN - The configuration relies on two variables:

  • rhn_config configures the system to use Red Hat Satellite 5 / Spacewalk. It is a hash whose keys are the parameters of the rhn_register module.

  • rhn_channels configures the software channels to be used by the host. If an activation key has been used with rhn_config, it may be useless.

• RHSM - The configuration relies on two variables:

  • rhsm_config configures the system to use Red Hat Satellite 6 / Katellois. It is a hash whose keys are the parameters of the redhat_subscription module.

• Ad-hoc repositories - The configuration relies on a single variable:

  • yum_repositories is an array of hashes, each hash allowing being a wrapper for the yum_repository module.

Example Playbook

The following playbook will register the virtual machine against a Satellite 6 server and enable the rhel-7-server-rpms repository. If no information is provided in extra_vars, the playbook will assume that repositories are already configured and will try to install the agent.

---
- hosts: to_be_migrated
  vars:
    rhsm_config:
      server_hostname: "satellite.example.com"
      server_username: "admin"
      server_password: "secret"
      org_id: "my_organization"
    rhsm_repositories:
      - "rhel-7-server-rpms"
  roles:
    - role: ims.rhel_pre_migration