install_arch: Only do hcloud-init stuff if this is an hcloud machine

This used to also needlessly and confusingly run on non-cloud boxes.

roles/install_arch/tasks/main.yml

@@ -194,9 +194,17 @@
 
 - name: install hcloud-init
   copy: src=hcloud-init dest=/mnt/usr/local/bin/hcloud-init owner=root group=root mode=0755
+  when: "'hcloud' in group_names"
 
 - name: install hcloud-init.service
   copy: src=hcloud-init.service dest=/mnt/etc/systemd/system/hcloud-init.service owner=root group=root mode=0644
+  when: "'hcloud' in group_names"
+
+- name: enable hcloud-init inside chroot
+  command: chroot /mnt systemctl enable hcloud-init
+  register: chroot_systemd_services
+  changed_when: "chroot_systemd_services.rc == 0"
+  when: "'hcloud' in group_names"
 
 - name: provide default mount options (btrfs)
   lineinfile:
@@ -218,7 +226,7 @@
   changed_when: "chroot_grub_mkconfig.rc == 0"
 
 - name: enable services inside chroot
-  command: chroot /mnt systemctl enable sshd systemd-networkd systemd-resolved fstrim.timer hcloud-init
+  command: chroot /mnt systemctl enable sshd systemd-networkd systemd-resolved fstrim.timer
   register: chroot_systemd_services
   changed_when: "chroot_systemd_services.rc == 0"