updated README

Author: wtripp180901

ansible/roles/dnf_repos/README.md

@@ -1,42 +1,37 @@
 dnf_repos
 =========
 
-Modifies repo definitions for repofiles in `/etc/yum.repos.d` to point to snapshots in StackHPC's Ark Pulp server.
+Modifies repo definitions for repofiles in `/etc/yum.repos.d` to point to snapshots in StackHPC's Ark Pulp server or mirrors of them
+on a local Pulp server.
 
 Requirements
 ------------
 
-Requires Ark credentials.
+Requires Ark credentials if using StackHPC's upstream Ark server.
 
 Role Variables
 --------------
 
 Variables in this role are also required by `pulp_site` so set in 
 `environments/common/inventory/groups_vars/all/dnf_repos.yml`. See that file for detailed default values.
 
-- `dnf_repos_all`: Dict of dicts containing information to construct URLs for timestamped repos from Ark for each Rocky version. For example:
+- `dnf_repos_repos`: Dict of dicts containing information to construct URLs for Ark snapshots from the target Pulp server for each Rocky version. For example:
     ```
-    dnf_repos_all:
+    dnf_repos_repos:
         appstream:                          # ansible.builtin.yum_repository:name
             '8.10':                           # ansible_distribution_version or ansible_distribution_major_version
                 repo_file: Rocky-AppStream      # yum_repository: file
                 # repo_name:                    # optional, override yum_repository:name
-                pulp_path: rocky/8.10/AppStream/x86_64/os
+                pulp_path: rocky/8.10/AppStream/x86_64/os # The subpath of the the upstream Ark server's content endpoint URL for the repo's snapshots, see https://ark.stackhpc.com/pulp/content/
                 pulp_timestamp: 20250614T013846
                 # pulp_content_url:             # optional, dnf_repos_pulp_content_url
             '9.6':
                 ...
     ```
-- `dnf_repos_default`: Appliance default repos to use Ark snapshots for. Follows same format as
-  `dnf_repos_all`, but includes top level keys to allow repos to be conditionally included in 
-  `dnf_repos_all`. See `environments/common/inventory/group_vars/all/dnf_repos.yml` and
-  `environments/common/inventory/group_vars/all/timestamps.yml` for full templating logic.
+- `dnf_repos_default`: Appliance default repos to use Ark snapshots for. Following same format as `dnf_repos_repos`.
+  See for appliance default repo list `environments/common/inventory/group_vars/all/timestamps.yml`.
 - `dnf_repos_extra`: Additional repos to use Ark snapshots for. Follows same format as
-  `dnf_repos_all`. Defaults to `{}`
-- `dnf_repos_no_epel`: Dict of all repos included in `dnf_repos_all` excluding 
-  `epel`, used to prevent conflicts with repofile installed by `epel-release`
-- `dnf_repos_default_epel`: Dict of repos objects following same format as `dnf_repos_all` but only 
-   including `epel` repo. 
+  `dnf_repos_repos`. Defaults to `{}`
 - `dnf_repos_pulp_content_url`: Optional str. Content URL of Pulp server to use Ark snapshots from. 
   Defaults to `{{ appliances_pulp_url }}/pulp/content`
 - `dnf_repos_username`: Optional str. Username for Ark. Should be set if using upstream StackHPC Ark