some variable naming changes

defaults/main.yml

@@ -1,8 +1,10 @@
+ssh_host_key_state: configured
+
+ssh_host: "{{ ansible_host | default(inventory_hostname) }}"
+
 ssh_host_key_types:
   - ed25519
   - ecdsa
   - rsa
-ssh_host_key_state: configured
-ssh_scan_host: "{% if ssh_ip is defined %}{{ ssh_ip }}{% else %}{{inventory_hostname}}{% endif %}"
 
 ssh_update_local_known_hosts_file: true

tasks/local.yml

@@ -5,6 +5,6 @@
   args:
     path: "{{ lookup('env','HOME') }}/.ssh/known_hosts"
     name: "{{ inventory_hostname }}"
-    key: "{{ lookup('template','ssh_host_key.j2') }}"
+    key: "{{ inventory_hostname }},{{ ssh_host }} ssh-ed25519 {{ ssh_host_key_ed25519_public }}"
   when: ssh_host_key_ed25519_public is defined
   throttle: 1

tasks/scan.yml

@@ -1,7 +1,7 @@
 ---
 
 - name: scan ssh host
-  local_action: command ssh-keyscan -t ed25519 {{ssh_scan_host}}
+  local_action: command ssh-keyscan -t ed25519 {{ssh_host}}
   register: _ssh_keyscan_result
   changed_when: false
 

templates/ssh_host_key.j2

@@ -1,5 +0,0 @@
-{% if ssh_ip is defined %}
-{{ inventory_hostname }},{{ ssh_ip }} ssh-ed25519 {{ ssh_host_key_ed25519_public }}
-{% else %}
-{{ inventory_hostname }},{{ ansible_host }} ssh-ed25519 {{ ssh_host_key_ed25519_public }}
-{% endif %}