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https://github.com/roles-ansible/ansible_role_avahi_client.git
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67 lines
3.2 KiB
Markdown
67 lines
3.2 KiB
Markdown
[](https://galaxy.ansible.com/ui/standalone/roles/l3d/avahi_client/)
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[](LICENSE)
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[](https://ansible.l3d.space/#l3d.avahi_client)
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ansible role avahi_client
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===========================
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Avahi provides local hostname resolution using the ``.local`` MDNS Domain.
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This ansible role installs the required dependencies and configures the DNS resolver accordingly.
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You can opt-out from deploying a new ``/etc/nsswitch.conf`` config by setting ``avahi_client__configure_nsswitch`` to ``false``.
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You can opt-in in a simple versionscheck that can prevent you from running a older version of this role by setting ``submodules_versioncheck`` to ``true``.
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Configuring nsswitch
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--------------------
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If you want only IPv4 or IPv6 names resolved, change ``mdns`` to ``mdns4`` or ``mdns6`` in these variables:
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```yaml
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avahi_client__mdns_name: 'mdns'
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avahi_client__mdns_minimal_name: 'mdns_minimal'
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```
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From the documentation of [nss-mdns](https://github.com/lathiat/nss-mdns)
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> `mdns` resolves both IPv6 and IPv4 addresses, `mdns4` only IPv4 addresses and `mdns6` only IPv6 addresses.
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> `mdns{4,6,}_minimal` is mostly identical to the versions without `_minimal`. However, they differ in one way. The minimal versions will always deny to resolve host names that don't end in `.local` or addresses that aren't in the range `169.254.x.x` (the range used by IPV4LL/APIPA/RFC3927.)
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> Combining the `_minimal` and the normal NSS modules allows us to make mDNS authoritative for Zeroconf host names and addresses and use it as fallback for everything else.
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Ansible Collection
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--------------------
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This role is part of the ``l3d.avahi`` Ansible Collection.
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[](https://galaxy.ansible.com/ui/repo/published/l3d/avahi/)
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[](https://ansible.l3d.space/#l3d.avahi)
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[](LICENSE)
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Visit the [README.md](https://github.com/roles-ansible/ansible_collection_avahi#readme) of the l3d.avahi collection for information about downloading or integrating the collection to your ansible playbook.
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### Role Usage Example:
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```bash
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# ansible-galaxy install l3d.avahi_client
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- name: "Let your System use MDNS to resolve .local addresses"
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hosts: localhost
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roles:
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- {role: l3d.avahi_client, tags: avahi}
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vars:
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# Enable optional Versioncheck.
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submodules_versioncheck: true
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```
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Learn more
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----------
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* DNS-SD [http://dns-sd.org/](http://dns-sd.org/)
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* mDNS [http://www.multicastdns.org/](http://www.multicastdns.org/)
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* Avahi [https://www.avahi.org/](https://www.avahi.org/)
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* Avahi git [https://github.com/lathiat/avahi](https://github.com/lathiat/avahi)
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* Avahi [wiki.archlinux.org](https://wiki.archlinux.org/title/Avahi)
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* [NSS mdns plugin](https://github.com/lathiat/nss-mdns)
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* [/etc/nsswitch.conf](https://manpages.debian.org/unstable/manpages/nsswitch.conf.5.en.html)
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