facts: get platform info from NetBox

Instead of pinging each host to see if it’s Windows. Make sure to set
the platform at least for such hosts.

roles/facts/tasks/main.yml

@@ -1,21 +1,21 @@
 # Read secrets and keys.
-- name: Get SSH keys
+- name: Get public SSH keys for root login
   delegate_to: localhost
   check_mode: false
   run_once: true
   block:
-    - name: Get GPG key IDs
+    - name: Read GPG key IDs from secret store
       shell: cat ${PASSWORD_STORE_DIR:-~/.password-store}/.gpg-id
       changed_when: false
       register: gpg_ids
 
-    - name: Export public SSH keys
+    - name: Retrieve public SSH keys from GPG keyring
       shell: echo "$(gpg --export-ssh-key {{ item }} | cut -d ' ' -f 1,2) $(gpg --list-keys --with-colons {{ item }} | sed -n 's@uid:.*<\(.*\)>.*@\1@p')"
       loop: '{{ gpg_ids.stdout_lines }}'
       changed_when: false
       register: ssh_export
 
-    - name: Set SSH keys to deploy on servers
+    - name: Store a list of SSH keys
       set_fact:
         ssh_keys: '{{ ssh_export.results | map(attribute="stdout") }}'
       failed_when: not ssh_keys # something must be terribly wrong so let’s not lock everyone out
@@ -52,23 +52,13 @@
 
 # Set host-specific connection parameters.
 - name: Set SSH connection username
-  delegate_to: localhost
   set_fact:
     ansible_ssh_user: "{{ password.user }}"
   when: password.user is defined
 
-- name: Check if the host is running Windows
-  win_ping:
-  vars:
-    ansible_shell_type: powershell
-  failed_when: false
-  ignore_errors: true
-  ignore_unreachable: true
-  register: result
-
 - name: Set connection parameters for Windows
   set_fact:
     ansible_shell_type: powershell
     ansible_become_method: runas
     ansible_become_flags: ""
-  when: result.ping|default("") == "pong"
+  when: platform == "windows"