add dataserver's known host to homeserver

Makefile

@@ -32,6 +32,6 @@ borg:
 	ansible-playbook playbooks/borg.yml -i inventory/hosts.yml --ask-vault-pass
 
 dataserver:
-	ansible-playbook playbooks/dataserver.yml -i inventory/hosts.yml
+	ansible-playbook playbooks/dataserver.yml -i inventory/hosts.yml --ask-vault-pass
 
 .PHONY: run

inventory/group_vars/all.yml

@@ -1,2 +1,3 @@
-borg_public_key: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBTag7YToG5W+H2kEUz40kOH+7cs0Lp3owFFKkmHBiWM root@max"
+borg_public_key: "AAAAC3NzaC1lZDI1NTE5AAAAIBTag7YToG5W+H2kEUz40kOH+7cs0Lp3owFFKkmHBiWM"
-backup_location: "/root/homeserver_backup"
+dataserver_public_key: "AAAAC3NzaC1lZDI1NTE5AAAAIJsLVptkoOwmxs6DnenN8u7Q1Tm/Psh0QdI6vjrTgb6D"
+backup_location: "/root/homeserver_backup"

roles/common/tasks/main.yml

@@ -23,3 +23,8 @@
     src: "{{ role_path }}/files/resolv.conf"
     dest: /etc/resolv.conf
     follow: true
+- name: Add dataserver to known hosts
+  known_hosts:
+    name: "lewis.lan"
+    key: "lewis.lan ssh-ed25519 {{ dataserver_public_key }}"
+    state: present

roles/dataserver/files/ssh_host_ed25519_key

@@ -0,0 +1,25 @@
+$ANSIBLE_VAULT;1.1;AES256
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+35663237653238313133

roles/dataserver/tasks/main.yml

@@ -1,3 +1,13 @@
+- name: Copy host public key
+  template:
+    src: "{{ role_path }}/templates/ssh_host_ed25519_key.pub.j2"
+    dest: "/etc/ssh/ssh_host_ed25519_key.pub"
+    mode: 0644
+- name: Copy host private key
+  copy:
+    src: "{{ role_path }}/files/ssh_host_ed25519_key"
+    dest: "/etc/ssh/ssh_host_ed25519_key"
+    mode: 0600
 - name: APT upgrade
   apt:
     autoremove: true
@@ -10,9 +20,9 @@
     name: borgbackup
 - name: Add Borg public key
   authorized_key:
-    key: "{{ borg_public_key }}"
+    key: "ssh-ed25519 {{ borg_public_key }} root@max"
     user: "{{ ansible_user_id }}"
 - name: Create Borg repository
   command:
     cmd: "borg init -e none {{ backup_location }}"
-    creates: "{{ backup_location }}"
+    creates: "{{ backup_location }}"

roles/dataserver/templates/ssh_host_ed25519_key.pub.j2

@@ -0,0 +1 @@
+ssh-ed25519 {{ dataserver_public_key }} root@lewis