103 lines
4.5 KiB
Markdown
103 lines
4.5 KiB
Markdown
# Basics
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This content is mainly deprecated and i start using [Debops Netbase role][debops netbase role]
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which comes with most of this configuration (more and better).
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The [Debops Ifupdown role][debops ifupdown role] can manage the DNS search and nameservers,
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[see the documentation][debops ifupdown dns] for more informations and the
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[Debops Resolvconf role][debops resolvconf role] can also give more possibilities.
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1. [Overview](#overview)
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2. [Role Variables](#role-variables)
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3. [Example Playbook](#example-playbook)
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4. [Configuration](#configuration)
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* [Hosts](#hosts)
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5. [Development](#development)
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6. [License](#license)
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7. [Author Information](#author-information)
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## Overview
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Manage some basics configuration for IPR's servers.
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## Role Variables
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* **basics__domain** : Domain to use [default : `{{ ansible_domain }}`].
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* **basics__hosts_localhost_manage** : If the localhost (127.0.0.1) line should be managed [default : `false`].
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* **basics__hosts_localhost_content** : Content of the localhost (127.0.0.1) line [default : `localhost.localdomain localhost`].
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* **basics__hosts_ipv4_manage** : If the ipv4 address line should be managed [default : `false`].
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* **basics__hosts_ipv4_content** : Content of the ipv4 address line [default : `{{ ansible_hostname }}.{{ basics__domain }} {{ ansible_hostname }}`].
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* **basics__proxmox_*disable** : Allow to disable the management of some files by Proxmox for LXC containers [default : `[]`].
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* **basics__resolvconf_packages** : List of Resolvconf packages to install [default : `resolvconf`].
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* **basics__resolvconf_enabled** : Enable or disable support for Resolvconf [default : `False`].
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* **basics__resolvconf_domains** : List of domains used as search suffixes with Resolvconf [default : `{{ ansible_domain }}`].
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* **basics__resolvconf_nameservers** : List of nameservers to use to resolv host names with Resolvconf [default : `{{ ansible_dns.nameservers }}`].
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* **basics__resolvconf_service_name** : The Resolvconf service name to manage [default : `resolvconf`].
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## Example Playbook
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* If you want to manage both localhost (127.0.0.1) and permanent IP (ipv4) lines :
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``` yml
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- hosts: serverXYZ
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roles:
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- role: ipr-cnrs.basics
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basics__hosts_localhost_manage: true
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basics__hosts_ipv4_manage: true
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```
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* If the domain is not defined on the remote host, you should set the `basics__domain` variable :
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``` yml
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- hosts: serverXYZ
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roles:
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- role: ipr-cnrs.basics
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basics__domain: 'mydomain.org'
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basics__hosts_ipv4_manage: true
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```
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## Configuration
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### Hosts
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Ensure to have the correct fqdn and hostname in /etc/hosts :
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- You can define the domain if it's not correct on the remote host.
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- You can choose to define the localhost (127.0.0.1) line content.
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- You can choose to define the permanent ip (ipv4) line content.
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- All other lines that contains hostname without this permanent ip address will be removed.
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For LXC containers, you also have the possibility to disable the management of some files (/etc/hosts,…) by Proxmox. See [Proxmox wiki about LXC][wiki proxmox lxc].
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## Resolvconf
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* If specified, Resolvconf is installed to fix the domain's informations given by the DHCP server.
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* Configure a default configuration file with the given informations (list of domains and nameservers).
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* Ensure to restart the service if any modification in configuration file.
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## Development
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This source code comes from our [Gogs instance][basics source] and the [Github repo][basics github] exist just to be able to send the role to Ansible Galaxy…
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But feel free to send issue/PR here :)
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Thanks to this [hook][gogs to github hook], Github automatically got updates from our [Gogs instance][basics source] :)
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## License
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[WTFPL][wtfpl website]
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## Author Information
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Jérémy Gardais
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* Source : [on IPR's Gogs][basics source]
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* [IPR][ipr website] (Institut de Physique de Rennes)
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[gogs to github hook]: https://stackoverflow.com/a/21998477
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[basics source]: https://git.ipr.univ-rennes1.fr/cellinfo/ansible.basics
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[basics github]: https://github.com/ipr-cnrs/basics
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[wtfpl website]: http://www.wtfpl.net/about/
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[ipr website]: https://ipr.univ-rennes1.fr/
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[wiki proxmox lxc]: https://pve.proxmox.com/wiki/Linux_Container#_guest_operating_system_configuration
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[debops netbase role]: https://docs.debops.org/en/master/ansible/roles/debops.netbase/index.html
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[debops ifupdown role]: https://docs.debops.org/en/master/ansible/roles/debops.ifupdown/index.html
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[debops resolvconf role]: https://docs.debops.org/en/master/ansible/roles/debops.resolvconf/index.html
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