Generate IP address list automatically.

installbox.yml

@@ -11,6 +11,7 @@
     hostname: "{{ ansible_hostname }}"
     ipaddr_lan: 192.168.0.10
     dhcp_range: 192.168.0.50,192.168.0.150,2h
+    dhcp_list: "{{ lookup('sequence', 'start=50 end=150 format=192.168.0.%d', wantlist=True) }}"
     tftp_root: "/var/lib/tftpboot"
     deb_mirror: "deb.debian.org"
     di_dist: "buster"

roles/dhcp-dns-dnsmasq/tasks/main.yml

@@ -3,6 +3,13 @@
     name: dnsmasq
     state: latest
 
+- name: add client hostnames and IP addresses to /etc/hosts
+  lineinfile:
+    dest: /etc/hosts
+    line: "{{ item.1 }}\t{{ 'debian%03d' | format(item.0) }}"
+  with_indexed_items: "{{ dhcp_list }}"
+  notify: "restart dnsmasq"
+
 - name: configure dnsmasq
   template:
     src: dnsmasq-transparent-proxy.j2