add debian interface config

hetzner/autoinstall/tasks/main.yml

@@ -1,6 +1,7 @@
 - name: bootstrap fully encrypted linux image
   when: hetzner_autoinstall|default(false)
   notify: unlock_disk
+  register: autoinstall
   block:
   - name: copy setup.conf template
     template:
@@ -27,3 +28,18 @@
 
   - name: flush handlers
     meta: flush_handlers
+
+  - name: gather facts
+    setup:
+
+- name: configure additional interfaces (debian)
+  template:
+    dest: "/etc/network/interfaces.d/{{ interface }}.cfg"
+    src: interface-config
+    owner: root
+    group: root
+    mode: "0644"
+  become: yes
+  loop: "{{ ansible_interfaces }}"
+  loop_control:
+    loop_var: interface

hetzner/autoinstall/templates/interface-config

@@ -0,0 +1,4 @@
+{% if "ens" in interface and interface != "ens3" %}
+auto {{ interface }}
+iface {{ interface }} inet dhcp
+{% endif %}

hetzner/autoinstall/templates/post-install.sh

@@ -1,6 +1,5 @@
 #!/bin/bash
 
-DEBIAN_INTERFACES_CONFIG=/etc/network/interfaces
 add_rfc3442_hook() {
   cat << EOF > /etc/initramfs-tools/hooks/add-rfc3442-dhclient-hook
 #!/bin/sh
@@ -49,11 +48,3 @@ echo "DEVICE={{ autoinstall_initramfs_interface }}" >> /etc/initramfs-tools/init
 # Update system
 apt-get update >/dev/null
 apt-get -y install cryptsetup-initramfs dropbear-initramfs
-
-{% for interface in ansible_interfaces %}
-{% if "ens" in interface and interface != "ens3" and ansible_distribution|lower == "debian" %}
-echo "" >> $DEBIAN_INTERFACES_CONFIG
-echo "auto {{ interface }}" >> $DEBIAN_INTERFACES_CONFIG
-echo "iface {{ interface }} inet dhcp" >> $DEBIAN_INTERFACES_CONFIG
-{% endif %}
-{% endfor %}