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README.md
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# ansible-role-ddclient-cloudflare # Ansible Role: ddclient
Simple Ansible for setting up Dynamic DNS with ddclient and cloudflare Configures and manages ddclient for dynamic DNS updates.
## Example Playbook
```yaml
---
- hosts: servers
roles:
- role: ddclient
vars:
ddclient_daemon_interval: 300 # Checks IP every 5 minutes (default, can be omitted)
ddclient_ipv4_detection: # Use ipify service to get your public IPv4 address
method: webv4
source: ipify-ipv4
ddclient_ipv6_detection: {} # Disable ipv6 detection
ddclient_protocols: # Use cloudflare to update your DNS records
- protocol: cloudflare
zone: example.com
password: "{{ vault_cloudflare_token }}"
ttl: 600
domains:
- home.example.com
- vpn.example.com
```
## Role Variables
> [!NOTE]
> Read the [ddclient general documentation](https://ddclient.net/general.html) to familiarize yourself with the global configuration options.
### IPv4 Detection Configuration
The `ddclient_ipv4_detection` dictionary contains:
| Key | Default | Description |
|-----|---------|-------------|
| `method` | `webv4` | Detection method: `ipv4`, `ifv4`, `webv4`, `fwv4`, `cmdv4` |
| `source` | `dyndns` | Source URL/interface/command (provider name or full URL) |
| `skip_pattern` | | Pattern to skip in output |
### IPv6 Detection Configuration
The `ddclient_ipv6_detection` dictionary contains the same keys as IPv4, with `method` supporting: `ipv6`, `ifv6`, `webv6`, `fwv6`, `cmdv6`
To disable either IPv6 or IPv4 detection, set to empty dict:
```yaml
ddclient_ipv6_detection: {}
```
### Firewall Authentication
Only applicable if using the IP detection method `fw`.
| Variable | Default | Description |
|----------|---------|-------------|
| `ddclient_fw_login` | | Firewall login username |
| `ddclient_fw_password` | | Firewall password |
### Protocol Configuration
**Common keys:**
| Key | Required | Description |
|-----|----------|-------------|
| `protocol` | Yes | Protocol type (e.g., `cloudflare`, `dyndns2`, `namecheap`) |
| `domains` | Yes | List of hostnames to update |
| `login` | Yes* | Username/email/domain |
| `password` | Yes* | Password/API key/token |
| `zone` | No | Zone/domain name (Cloudflare, nsupdate) |
| `ttl` | No | DNS TTL in seconds |
| `server` | No | update DNS information on this server |
| `mx` | No | Mail exchanger hostname |
| `backupmx` | No | Backup MX flag (yes/no) |
| `wildcard` | No | Wildcard DNS flag (yes/no) |
| `custom` | No | Custom domain flag (yes/no) |
| `tcp` | No | Use TCP instead of UDP (yes/no) |
> [!NOTE]
> *Required fields depend on the protocol
> Read the [ddclient protocol documentation](https://ddclient.net/protocols.html) to know which options must be specified for a given protocol.
### Daemon Settings
| Variable | Default | Description |
|----------|---------|-------------|
| `ddclient_daemon_interval` | `300` | Check interval in seconds (0 = run once) |
| `ddclient_foreground` | `false` | Run in foreground (don't fork) |
| `ddclient_pid` | `""` | PID file path (empty = use default) |
| `ddclient_cache` | `""` | Cache file path (empty = use default) |
### Network Settings
| Variable | Default | Description |
|----------|---------|-------------|
| `ddclient_ssl` | `true` | Use SSL/HTTPS for updates |
| `ddclient_proxy` | | HTTP proxy hostname (empty = no proxy) |
| `ddclient_timeout` | `0` | Connection timeout in seconds (0 = no timeout) |
### Logging Settings
| Variable | Default | Description |
|----------|---------|-------------|
| `ddclient_syslog` | `true` | Log to syslog |
| `ddclient_facility` | `daemon` | Syslog facility |
| `ddclient_priority` | `notice` | Syslog priority |
| `ddclient_mail` | | Email address for notifications |
| `ddclient_mail_failure` | | Email address for failure notifications |
| `ddclient_verbose` | `false` | Verbose output |
| `ddclient_quiet` | `false` | Suppress unnecessary update messages |
| `ddclient_debug` | `false` | Debug output |
### Update Behavior
| Variable | Default | Description |
|----------|---------|-------------|
| `ddclient_exec` | `true` | Execute updates (false = dry-run) |
| `ddclient_retry` | `false` | Retry failed updates |
| `ddclient_force` | `false` | Force updates even if unnecessary |
| `ddclient_postscript` | | Script to run after update |
## More Example Playbooks
### Multiple Providers
```yaml
---
- hosts: servers
roles:
- role: ddclient
vars:
ddclient_protocols:
- protocol: cloudflare
zone: company.com
login: token
password: "{{ vault_cloudflare_password }}"
domains:
- www.company.com
- api.company.com
- protocol: dyndns2
server: domains.google.com
login: service-login
password: "{{ vault_service_password }}"
domains:
- backup.ddns.net
```
### Interface-based Detection (Server with Public IP)
```yaml
---
- hosts: servers
roles:
- role: ddclient
vars:
ddclient_ipv4_detection:
method: ifv4
source: eth0
ddclient_protocols:
- protocol: cloudflare
zone: example.com
login: token
password: "{{ vault_cloudflare_token }}"
domains:
- server.example.com
```
### Dual-Stack (IPv4 + IPv6)
```yaml
---
- hosts: servers
roles:
- role: ddclient
vars:
ddclient_ipv4_detection:
method: webv4
source: checkip.amazonaws.com
ddclient_ipv6_detection:
method: webv6
source: checkipv6.dyndns.org
ddclient_protocols:
- protocol: cloudflare
zone: example.com
login: admin@example.com
password: "{{ vault_cloudflare_token }}"
ttl: 600
domains:
- dualstack.example.com
```
### Dry-Run Mode (Testing)
```yaml
---
- hosts: servers
roles:
- role: ddclient
vars:
ddclient_exec: false # Don't actually update DNS
ddclient_verbose: true
ddclient_protocols:
- protocol: cloudflare
zone: example.com
login: token
password: test-token
domains:
- test.example.com
```
## IP Detection Methods
### Web-based (webv4/webv6)
Queries a web service to detect public IP. Best for systems behind NAT.
```yaml
ddclient_ipv4_detection:
method: webv4
source: checkip.amazonaws.com # or dyndns, googledomains, etc.
```
### Interface-based (ifv4/ifv6)
Reads IP directly from a network interface. Best for servers with public IPs.
```yaml
ddclient_ipv4_detection:
method: ifv4
source: eth0
```
### Firewall/Router-based (fwv4/fwv6)
Queries router's status page for WAN IP.
```yaml
ddclient_ipv4_detection:
method: fwv4
source: 192.168.1.1/Status.htm
skip_pattern: "WAN IP Address"
ddclient_fw_login: admin
ddclient_fw_password: routerpass
```
### Command-based (cmdv4/cmdv6)
Executes a custom script/command to get IP.
```yaml
ddclient_ipv4_detection:
method: cmdv4
source: /usr/local/bin/get-public-ip.sh
```
## License
MIT

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defaults/main.yaml Executable file
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---
# Daemon settings
ddclient_daemon_interval: 300 # Check interval in seconds (0 = run once)
ddclient_foreground: false # Run in foreground (don't fork)
ddclient_pid: "" # PID file path
ddclient_cache: "" # Cache file path
# Network settings
ddclient_ssl: true # Use SSL/HTTPS
ddclient_proxy: "" # HTTP proxy (empty = no proxy)
ddclient_timeout: 0 # Connection timeout (0 = no timeout)
# Logging settings
ddclient_syslog: true # Log to syslog
ddclient_facility: daemon # Syslog facility
ddclient_priority: notice # Syslog priority
ddclient_mail: "" # Email address for notifications
ddclient_mail_failure: "" # Email address for failure notifications
ddclient_verbose: false # Verbose output
ddclient_quiet: false # Suppress unnecessary update messages
ddclient_debug: false # Debug output
# Update behavior
ddclient_exec: true # Actually execute updates (false = dry-run)
ddclient_retry: false # Retry failed updates
ddclient_force: false # Force updates even if unnecessary
ddclient_postscript: "" # Script to run after update
# IP Detection configuration
ddclient_ipv4_detection:
static_ip: "" # Set static IP address (skips detection)
method: webv4 # Method: ip, if, web, fw, cmd
source: dyndns # Source for web/fw methods
address: "" # IP address for method=ip
interface: "" # Network interface (for method=if)
command: "" # Command to run (for method=cmd)
skip: "" # Pattern to skip in output
ddclient_ipv6_detection:
static_ip: "" # Set static IP address (skips detection)
method: webv6 # Method: ip, if, web, fw, cmd
source: dyndns # Source for web/fw methods
address: "" # IP address for method=ip
interface: "" # Network interface (for method=if)
command: "" # Command to run (for method=cmd)
skip: "" # Pattern to skip in output
fw_login: "" # Firewall login (for method=fw)
fw_password: "" # Firewall password (for method=fw)

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handlers/main.yaml Executable file
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---
- name: Restart ddclient service
ansible.builtin.service:
name: ddclient
state: restarted

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meta/main.yaml Normal file
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---
galaxy_info:
role_name: ddclient
author: Patrick Jaroszewski
description: Ansible role to install and configure ddclient
license: MIT License
min_ansible_version: 2.11
platforms:
- name: Debian
versions: all
- name: Ubuntu
version: all
galaxy_tags:
- ddns
- dynamicdns
- ddclient

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tasks/main.yaml Executable file
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---
- name: Install ddclient
ansible.builtin.package:
name: ddclient
state: latest
- name: Copy over main ddclient configuration file
ansible.builtin.template:
src: "../templates/ddclient.conf.j2"
dest: /etc/ddclient.conf
owner: root
mode: "0600"
notify: Restart ddclient service
- name: Copy over ddclient service configuration
ansible.builtin.template:
src: "../templates/ddclient.j2"
dest: /etc/default/ddclient
owner: root
mode: "0600"
notify: Restart ddclient service

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# {{ ansible_managed }}
# /etc/ddclient.conf
# ============================================================
# Daemon Settings
# ============================================================
daemon={{ ddclient_daemon_interval }}
foreground={{ ddclient_foreground | ternary('yes', 'no') }}
{% if ddclient_pid %}
pid={{ ddclient_pid }}
{% endif %}
{% if ddclient_cache %}
cache={{ ddclient_cache }}
{% endif %}
# ============================================================
# Network Settings
# ============================================================
ssl={{ ddclient_ssl | ternary('yes', 'no') }}
{% if ddclient_proxy %}
proxy={{ ddclient_proxy }}
{% endif %}
{% if ddclient_timeout %}
timeout={{ ddclient_timeout }}
{% endif %}
# ============================================================
# Logging Settings
# ============================================================
syslog={{ ddclient_syslog | ternary('yes', 'no') }}
{% if ddclient_facility %}
facility={{ ddclient_facility }}
{% endif %}
{% if ddclient_priority %}
priority={{ ddclient_priority }}
{% endif %}
{% if ddclient_mail %}
mail={{ ddclient_mail }}
{% endif %}
{% if ddclient_mail_failure %}
mail-failure={{ ddclient_mail_failure }}
{% endif %}
verbose={{ ddclient_verbose | ternary('yes', 'no') }}
quiet={{ ddclient_quiet | ternary('yes', 'no') }}
debug={{ ddclient_debug | ternary('yes', 'no') }}
# ============================================================
# Update Behavior
# ============================================================
retry={{ ddclient_retry | ternary('yes', 'no') }}
force={{ ddclient_force | ternary('yes', 'no') }}
{% if ddclient_postscript %}
postscript={{ ddclient_postscript }}
{% endif %}
# ============================================================
# IP Detection Method
# ============================================================
# Disable the legacy use setting
use=no
{% if ddclient_ipv4_detection is defined and ddclient_ipv4_detection %}
usev4={{ ddclient_ipv4_detection.method }}
{{ ddclient_ipv4_detection.method }}={{ ddclient_ipv4_detection.source }}
{% if ddclient_ipv4_detection.skip_pattern is defined %}
{{ ddclient_ipv4_detection.method }}-skip='{{ ddclient_ipv4_detection.skip_pattern }}'
{% endif %}
{% endif %}
{% if ddclient_ipv6_detection is defined and ddclient_ipv6_detection %}
usev6={{ ddclient_ipv6_detection.method }}
{{ ddclient_ipv6_detection.method }}={{ ddclient_ipv6_detection.source }}
{% if ddclient_ipv6_detection.skip_pattern is defined %}
{{ ddclient_ipv6_detection.method }}-skip='{{ ddclient_ipv6_detection.skip_pattern }}'
{% endif %}
{% endif %}
{% if ddclient_fw_login is defined %}
fw-login={{ ddclient_fw_login }}
{% if ddclient_fw_password is defined %}
fw-password={{ ddclient_fw_password }}
{% endif %}
{% endif %}
# ============================================================
# Protocol Configurations
# ============================================================
{% for proto in ddclient_protocols %}
{% for key, value in proto.items() %}
{% if key != 'domains' %}
{{ key }}={{ value }}
{% endif %}
{% endfor %}
{{ proto.domains | join(',') }}
{% endfor %}

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# Configuration for ddclient scripts
# {{ ansible_managed }}
#
# /etc/default/ddclient
# Set to "true" if ddclient should be run every time DHCP client ('dhclient'
# from package isc-dhcp-client) updates the systems IP address.
run_dhclient="false"
# Set to "true" if ddclient should be run every time a new ppp connection is
# established. This might be useful, if you are using dial-on-demand.
run_ipup="false"
# Set the time interval between the updates of the dynamic DNS name in seconds.
# This option only takes effect if the ddclient runs in daemon mode.
daemon_interval={{ ddclient_daemon_interval }}