Update pihole role to function as dhcp for the network

4 files changed, 36 insertions, 2 deletions

diff --git a/roles/pihole/README.md b/roles/pihole/README.md
index 714ffd40..da95c866 100644
--- a/roles/pihole/README.md
+++ b/roles/pihole/README.md
@@ -19,8 +19,10 @@ This role configure the [pihole](https://github.com/pi-hole/pi-hole) DNS Sinkhol
 Update the following
 
 - Home Network > Network > Network Settings > Change Advanced Network Settings >
-  - IPv6 > DNSv6 Server in the Home Network > Router advertisement enable in the LAN > Set ULA Prefix
-  - IPv4 > DHCP > Local DNS Server > {{ pihole_ipv4 }}
+  - IPv6 > DNSv6 Server in the Home Network > Router advertisement enable in the LAN > Disabled
+  - IPv6 > DNSv6 Server in the Home Network > Disable DHCPv6 server in the FRITZ!Box >
+    - There are no other DHCPv6 servers in the home network.
+  - IPv4 > DHCP > Enable DHCP server > Disabled
 - Internet > Account Information > DNS Server > DNSv4 Server >
   - Use Other DNSv4 Servers > {{ pihole_ipv4 }}
   - Use Other DNSv6 Servers > {{ pihole_ipv6 }}
diff --git a/roles/pihole/defaults/main.yml b/roles/pihole/defaults/main.yml
index e5edf117..44744d98 100644
--- a/roles/pihole/defaults/main.yml
+++ b/roles/pihole/defaults/main.yml
@@ -8,4 +8,9 @@ pihole_dns:
 pihole_interface: "{{ ansible_default_ipv4.interface }}"
 pihole_dns_blocking_enabled: true
 pihole_dhcp_enabled: false
+pihole_dhcp_start: "{{ ansible_default_ipv4.network | regex_replace('\\.0$', '.100') }}"
+pihole_dhcp_end: "{{ ansible_default_ipv4.network | regex_replace('\\.0$', '.199') }}"
+pihole_dhcp_router: "{{ ansible_default_ipv4.address }}"
+pihole_dhcp_lease_time: 24
+pihole_dhcp_domain: "local"
 pihole_domain: ""
diff --git a/roles/pihole/meta/argument_specs.yml b/roles/pihole/meta/argument_specs.yml
index b50fc5c5..e7cf04e7 100644
--- a/roles/pihole/meta/argument_specs.yml
+++ b/roles/pihole/meta/argument_specs.yml
@@ -30,6 +30,26 @@ argument_specs:
         type: "bool"
         description: "The boolean flag to toggle DHCP on the pi-hole"
         default: false
+      pihole_dhcp_start:
+        type: "str"
+        description: "The dhcp start address"
+        default: "{{ ansible_default_ipv4.network }}.100"
+      pihole_dhcp_end:
+        type: "str"
+        description: "The dhcp end address"
+        default: "{{ ansible_default_ipv4.network }}.199"
+      pihole_dhcp_address:
+        type: "str"
+        description: "The dhcp server address (local pihole address)"
+        default: "{{ ansible_default_ipv4.address }}"
+      pihole_dhcp_lease_time:
+        type: "int"
+        description: "The dhcp lease time in hours"
+        default: 24
+      pihole_dhcp_domain:
+        type: "str"
+        description: "The dhcp local domain extension"
+        default: "local"
       pihole_domain:
         type: "str"
         description: "The domain name to be configured when the pi is exposed over the internet"
diff --git a/roles/pihole/templates/pihole.toml.j2 b/roles/pihole/templates/pihole.toml.j2
index 78467364..67913821 100644
--- a/roles/pihole/templates/pihole.toml.j2
+++ b/roles/pihole/templates/pihole.toml.j2
@@ -47,6 +47,13 @@ active = {{ pihole_dns_blocking_enabled | lower }}
 
 [dhcp]
 active = {{ pihole_dhcp_enabled | lower }}
+{% if pihole_dhcp_enabled %}
+start = "{{ pihole_dhcp_start }}"
+end = "{{ pihole_dhcp_end }}"
+router = "{{ pihole_dhcp_router }}"
+leaseTime = {{ pihole_dhcp_lease_time }}
+domain = "{{ pihole_dhcp_domain }}"
+{% endif %}
 
 [webserver]
 {% if (pihole_domain is defined) and (pihole_domain != '')  %}