okd/roles/openshift_control_plane/tasks/check_existing_config.yml

---
# We need to scrape existing config and check some items.
- stat:
    path: "/etc/origin/master/master-config.yaml"
  register: master_config_path_check

- slurp:
    src: "/etc/origin/master/master-config.yaml"
  register: openshift_master_config_encoded_contents
  when: master_config_path_check.stat.exists

# The existing config will also be used to determine first node selector on
# first master.
- set_fact:
    l_existing_config_master_config: "{{ (openshift_master_config_encoded_contents.content | b64decode | from_yaml) }}"
  when:
  - openshift_master_config_encoded_contents is defined
  - openshift_master_config_encoded_contents.content is defined

- name: Check for file paths outside of /etc/origin/master in master's config
  master_check_paths_in_config:
    mastercfg: "{{ l_existing_config_master_config }}"
  when: l_existing_config_master_config is defined

- set_fact:
    # Take list of existing IDProviders so we can use/modify them later,
    # especially for migrating htpasswd file.
    openshift_master_existing_idproviders: "{{ l_existing_config_master_config.oauthConfig.identityProviders }}"
  when:
  - l_existing_config_master_config is defined
  - l_existing_config_master_config.oauthConfig is defined
  - l_existing_config_master_config.oauthConfig.identityProviders is defined