[borgbackup_client] various fixes for ssh keys

roles/borgbackup_client/tasks/main.yml

@@ -44,11 +44,33 @@
 - name: Create SSH key
   openssh_keypair:
     path: "/etc/borgbackup/id_remote"
-    type: rsa
+    type: ed25519
+    regenerate: full_idempotence
     owner: root
     group: root
     mode: u=r,g=r,o=
   register: ssh_key
+ 
+- name: Gather server facts
+  delegate_to: "{{ borg_server_host }}"
+  setup:
+    gather_subset:
+      - all
+  register: server_facts
+
+- name: debug
+  debug:
+    var: "server_facts['ansible_facts'].ansible_ssh_host_key_ecdsa_public_keytype"
+
+- name: Add server key to known hosts
+  known_hosts:
+    hash_host: true
+    host: "{{ borg_server_host }}"
+    key: "{{ borg_server_host }} {{ server_facts['ansible_facts']['ansible_ssh_host_key_' + item + '_public_keytype'] }} {{ server_facts['ansible_facts']['ansible_ssh_host_key_' + item + '_public'] }}"
+  loop:
+    - ecdsa
+    - ed25519
+    - rsa
 
 - name: Add public key to remote
   delegate_to: "{{ borg_server_host }}"
@@ -65,12 +87,12 @@
       no-user-rc,
       no-X11-forwarding
   vars:
-    borg_host_dir: "{{ borg_server_base_dir }}/{{ ansible_fqdn }}"
+    borg_host_dir: "/borg/{{ ansible_fqdn }}"
 
 - name: Add borgmatic configuration file
   become: true
   template:
-    src: borgmatic.conf.j2
+    src: config.yaml.j2
     dest: /etc/borgmatic/config.yaml
     owner: root
     group: root