5.6. Updating the undercloud.conf file

Procedure

1. Log in to your undercloud host as the stack user.

2. Create a file called skip_rhel_release.yaml and set the SkipRhelEnforcement parameter to true:

   parameter_defaults:
     SkipRhelEnforcement: true

3. Open the undercloud.conf file, and add the container_images_file parameter to the DEFAULT section in the file:

   container_images_file = /home/stack/containers-prepare-parameter.yaml

   • The container_images_file parameter defines the location of the containers-prepare-parameter.yaml environment file so that director pulls container images for the undercloud from the correct location.

4. Add the custom_env_files parameter to the DEFAULT section in the undercloud.conf file. The custom_env_files parameter defines the location of the skip_rhel_release.yaml file that is required for the upgrade:

   custom_env_files = /home/stack/skip_rhel_release.yaml

   • Add any additional custom environment files to the custom_env_files parameter, separated by a comma. Ensure that any existing files in the parameter are included in the list. For example:

     custom_env_files = /home/stack/custom-undercloud-params.yaml,/home/stack/skip_rhel_release.yaml

5. Check all other parameters in the file for any changes.
6. Save the file.