Ansible role dns

This role installs and sets up DNS on your system.

GitHub	GitLab	Downloads	Version

Example Playbook

Here’s a basic example from molecule/default/converge.yml that is tested whenever there is a push, pull request, or release:

---
- name: Set up DNS
  hosts: all
  become: true
  gather_facts: true

  roles:
    - role: robertdebock.dns
      dns_allow_transfer:
        - none
        - "127.0.0.1"
      dns_zones:
        - name: localhost
          type: primary
          soa: localhost
          serial: 1
          refresh: 604800
          retry: 86400
          expire: 2419200
          ttl: 604800
          records:
            - name: "@"
              type: NS
              value: localhost.
            - name: "@"
              value: "127.0.0.1"
            - name: "@"
              type: AAAA
              value: "::1"
        - name: "127.in-addr.arpa"
          ttl: 604800
          type: primary
          records:
            - name: "@"
              type: NS
              value: localhost.
            - name: "1.0.0"
              type: PTR
              value: localhost.
        - name: "0.in-addr.arpa"
          type: primary
          records:
            - name: "@"
              type: NS
              value: localhost.

        - name: "255.in-addr.arpa"
          type: primary
          records:
            - name: "@"
              type: NS
              value: localhost.
        - name: example.com
          type: primary
          ttl: 604800
          ns:
            - name: dns1.example.com.
            - name: dns2.example.com.
          mx:
            - name: mail1.example.com.
              priority: 10
            - name: mail2.example.com.
              priority: 20
          records:
            - name: dns1
              value: "127.0.0.1"
            - name: dns2
              value: "127.0.0.1"
            - name: www
              value: "127.0.0.1"
            - name: dns1
              value: "127.0.0.1"
            - name: dns2
              value: "127.0.0.1"
            - name: mail1
              value: "127.0.0.1"
            - name: mail2
              value: "127.0.0.1"
        - name: forwarded.example.com
          type: forward
          forwarders:
            - "1.1.1.1"
            - "8.8.8.8"
        - name: secondary.example.com
          type: secondary
          primaries:
            - "127.0.0.1"
            - "127.0.0.2"
        - name: lab.controlplane.info
          type: primary
          ttl: 600
          ns:
            - name: ns.lab.controlplane.info.
          mx:
            - name: mail1.lab.controlplane.info.
              priority: 10
            - name: mail2.lab.controlplane.info.
              priority: 20
          records:
            - name: ns
              value: "192.168.254.27"
            - name: git
              value: "192.168.254.19"
            - name: dl380
              value: "192.168.254.27"
            - name: mail1
              value: "192.168.123.123"
            - name: mail2
              value: "192.168.123.123"
        - name: forwarded.lab.controlplane.info
          type: forward
          ns:
            - name: forwarded.lab.controlplane.info.
          records:
            - name: ns
              value: "192.168.254.27"
            - name: "@"
              value: "192.168.123.123"
          forwarders:
            - "9.9.9.9"
            - "8.8.8.8"

Make sure the machine is set up properly. In CI, this preparation is done using molecule/default/prepare.yml:

---
- name: Prepare
  hosts: all
  become: true
  gather_facts: false

  roles:
    - role: robertdebock.bootstrap
    - role: robertdebock.core_dependencies

You can also find a detailed guide and examples on using these roles.

Role Variables

Default values for the role variables are in defaults/main.yml:

---
# Default settings for dns

# The port the DNS server listens on.
dns_port: 53

# Should the DNS server cache responses?
dns_caching_dns: true

# A list of DNS zones and their settings.
dns_zones:
  - name: localhost
    type: primary
    soa: localhost
    serial: 1
    refresh: 604800
    retry: 86400
    expire: 2419200
    ttl: 604800
    records:
      - name: "@"
        type: NS
        value: localhost.
      - name: "@"
        value: "127.0.0.1"
      - name: "@"
        type: AAAA
        value: "::1"
  - name: "127.in-addr.arpa"
    ttl: 604800
    type: primary
    records:
      - name: "@"
        type: NS
        value: localhost.
      - name: "1.0.0"
        type: PTR
        value: localhost.
  - name: "0.in-addr.arpa"
    type: primary
    records:
      - name: "@"
        type: NS
        value: localhost.
  - name: "255.in-addr.arpa"
    type: primary
    records:
      - name: "@"
        type: NS
        value: localhost.

# Optional ACLs to control recursion. (Options include "any" and "none".)
dns_allow_recursion:
  - none

# Optional list of IPv4 addresses the DNS server will listen on. ("any" and "none" are always available.)
dns_listen_on:
  - any

# Optional list of IPv6 addresses the DNS server will listen on. ("any" and "none" are always available.)
dns_listen_on_v6:
  - any

# Optional list of IPs that can query the server. Default is "any".
# dns_allow_query:
#  - any
#  - "127.0.0.1"

# Optional list of IPs that can perform AXFR queries. Default is "none".
# dns_allow_transfer:
#   - none
#   - "172.16.0.1"

# Optional setting for the PID file path.
dns_pid_file: /run/named/named.pid

# Optional setting to forward requests to other DNS servers.
# dns_forwarders:
#   - "1.1.1.1"
#   - "8.8.8.8"

Requirements

• Python packages listed in requirements.txt.

Used Roles

Several roles are used for system preparation, but you can prepare your system differently.

Requirement	GitHub	GitLab
robertdebock.bootstrap
robertdebock.core_dependencies

Context

This role is part of a collection of related roles. Check out the documentation for these roles for more information.

Here’s a visual of related roles:

Compatibility

This role has been tested on various container images:

Ansible version 2.12 or higher is required, and tests have been conducted on:

• Previous version.
• Current version.
• Development version.

If you encounter issues, please report them on GitHub.

License

This role is licensed under the Apache-2.0.

Author Information

Developed by robertdebock

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