Simple ansible configuration role to install and configure a DNS server
This role will allow you to install and configure a Bind9 (non-authoritative) DNS server on a linux machine. The role allows you to customize a number of DNS server options inside of the vars/main.yml file, including a list of host and IP addresses that you would like your DNS server to resolve. I did make this for my own purposes to set up a raspberry pi DNS server on my home network to route traffic to my media server through a domain name, but it hopefully should work just fine for anyone else too. Feel free to fork to modify for your own purposes 😊
Using this role should be pretty much the same as any other role, but just to make sure, I will include the following directions for different ways of consuming the role.
Create a Dockerfile similar to the provided one in this repo.
FROM ubuntu:20.04
RUN apt update && apt install -y ansible systemctl
RUN mkdir -p /ansible-plays/
WORKDIR /
COPY ./playbook.yml ./ansible-plays/
COPY . /etc/ansible/roles/ansible-dns-server/
# Run the play (CAN BE OVERIDDEN)
CMD [ "ansible-playbook", "./ansible-plays/playbook.yml" ]
Build the container image
docker build -t ansible-dev:latest -f Dockerfile .
Run the container using your image
docker run -it -p 53:53/udp -p 53:53/tcp ansible-dev:latest
Installing manually requires a couple of extra steps than the previous methods of installation. This method is, however, more clear.
First fork the repository and make your customizations to the config-dns-server/vars/ role variables
---
# vars file for config-dns-server
# Directory for the DNS cache
bind_directory: /var/cache/bind
# What address shall be configured for this DNS server host
dns_server_address: 127.0.0.1
# Which secondary DNS server (default: google) shall be used to find anything not found in primary DNS server (this)
forwarding_dns_server: 8.8.8.8
# Used to identify / configure the zone for a subnet running this DNS server
# If you have a 192.168.0.0/16 then then you would use the reversed octet 168.192. If you use 10.128.0.0/16 you would use 128.10 here
subnet_reversed_octet: 168.192
# List of zone configs to be created in DNS configuration
# available_zone_domains: List of all domains this DNS server will resolve
# host_name: name of computer/server on the network
# host_address: The static IP address of the computer/server on the network
# domain: The domain that this host_name is a part of on the network
# All together: host_name.domain => host_address
available_zone_domains:
- sykeshome
- sykesdev
zone_hosts:
- { host_name: webserver, host_address: 192.168.0.107, domain: sykeshome }
- { host_name: mac, host_address: 192.168.0.113, domain: sykesdev}
- { host_name: bob, host_address: 192.168.0.133, domain: sykeshome}
Copy the role to your master or node /etc/ansible/roles/ and create a playbook
local
---
- hosts: 127.0.0.1
connection: local
become: true
roles:
- config-dns-server
master
---
- hosts: webservers
become: true
roles:
- config-dns-server