Ansible DHCPD and DNS

Using Ansible to configure DHCPD and NDS on OpenBSD

Host data is stored in csv files

Ansible templates to create config files

Restart services

hostname-setup.yml

---

- hosts: localhost

tasks:

- name: read subnet 10

read_csv:

path: 10.csv

fieldnames: mac,ip,hostname

register: subnet_10

- name: read subnet 11

read_csv:

path: 11.csv

fieldnames: mac,ip,hostname

register: subnet_11

- name: read static

read_csv:

path: static.csv

fieldnames: hostname,ip

register: static_ip

- name: write dhcp file

template:

src: dhcpd.conf.j2

dest: /etc/dhcpd.conf

validate: dhcpd -nc %s

- name: write local.lan zone file

template:

src: local.lan.zone.j2

dest: /var/nsd/zones/master/local.lan

owner: root

group: _nsd

validate: nsd-checkzone local.lan %s

- name: nsd_conf

copy:

src: nsd.conf

dest: /var/nsd/etc/nsd.conf

owner: root

group: _nsd

validate: nsd-checkconf %s

- name: restart nsd

service:

name: nsd

state: restarted

- name: restart dhcpd

service:

name: dhcpd

state: restarted

- name: restart unbound

service:

name: unbound

state: restarted

10.csv

b8:27:eb:8b:7a:6d,192.168.10.100,pi3a

b8:27:eb:ef:f2:d4,192.168.10.101,pi3b

28:10:7b:25:d5:60,192.168.10.79,ipcam3

28:10:7b:0c:fa:7b,192.168.10.80,ipcam1

f0:7d:68:0b:ca:56,192.168.10.81,ipcam2

static.csv

tplink,192.168.10.2

gate,192.168.10.10

www,192.168.10.10

fox,192.168.10.17

dhcpd.conf.j2

option domain-name "local.lan";

option domain-name-servers 192.168.10.10;

subnet 192.168.10.0 netmask 255.255.255.0 {

option routers 192.168.10.10;

range 192.168.10.161 192.168.10.179;

{% for host in subnet_10.list %}

host static-client { hardware ethernet {{ host.mac }};fixed-address {{ host.ip }};} #{{ host.hostname }}

{% endfor %}

}

subnet 192.168.11.0 netmask 255.255.255.0 {

option routers 192.168.11.10;

range 192.168.11.72 192.168.11.127;

{% for host in subnet_11.list %}

host static-client { hardware ethernet {{ host.mac }};fixed-address {{ host.ip }};} #{{ host.hostname }}

{% endfor %}

}

Rendered DHCP entires

host static-client { hardware ethernet b8:27:eb:de:2f:38;fixed-address 192.168.10.45;} #pi3a

host static-client { hardware ethernet 28:10:7b:25:d5:60;fixed-address 192.168.10.79;} #ipcam3

host static-client { hardware ethernet 28:10:7b:0c:fa:7b;fixed-address 192.168.10.80;} #ipcam1

local.lan.zone.j2

$TTL 3600

local.lan. IN SOA a.root-servers.net. root. (

2016092901 ; Serial

3H ; refresh after 3 hours

1H ; retry after 1 hour

1W ; expire after 1 week

1D) ; minimum TTL of 1 day

IN NS gate.

IN MX 50 gate.local.lan.

local.lan. IN A 192.168.10.10

{% for host in static_ip.list%}

{{ host.hostname }} IN A {{ host.ip }}

{% endfor %}

{% for host in subnet_10.list%}

{{ host.hostname }} IN A {{ host.ip }}

{% endfor %}

{% for host in subnet_11.list%}

{{ host.hostname }} IN A {{ host.ip }}

{% endfor %}

Rendered A records

pi3b IN A 192.168.10.101

pi3a IN A 192.168.10.45

ipcam3 IN A 192.168.10.79

ipcam1 IN A 192.168.10.80

Run the playboo