first version

.gitignore

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+*.pyc

.yamllint

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+---
+extends: default
+
+ignore: |
+  .kitchen/*
+  vendor/
+
+rules:
+  line-length:
+    max: 120
+    level: warning
+  truthy: false

CHANGELOG.md

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+# CHANGELOG
+
+This project adheres to [Semantic Versioning](http://semver.org/).
+Which is based on [Keep A Changelog](http://keepachangelog.com/)
+
+## Unreleased
+
+- first version

LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
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+
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+
+   9. Accepting Warranty or Additional Liability. While redistributing
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+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
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+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
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+   Copyright 2021 Adrien Waksberg
+
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+   you may not use this file except in compliance with the License.
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+
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+
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+   See the License for the specific language governing permissions and
+   limitations under the License.

README.md

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+# Ansible role: Network
+
+[![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](https://git.yaegashi.fr/nishiki/ansible-role-network/src/branch/master/LICENSE)
+
+Configure network on Debian
+
+## Requirements
+
+* Ansible >= 2.9
+* Debian
+  * Buster
+  * Bullseye
+
+## Role variables
+
+* `network_interfaces` - array with the interfaces
+
+```
+  - interface: eth0
+    address: 192.168.1.10
+    netmask: 255.255.255.0
+    gateway: 192.168.1.1
+    routes:
+      - subnet: 10.0.0.0/24
+        gateway: 192.168.1.50
+  - interface: eth1
+    dhcp: true
+```
+
+* `network_search_domains` - array with search domains
+
+```
+  - company.loc
+  - cie.local
+```
+
+* `network_hosts` - hash with hosts to add in /etc/hosts
+
+```
+  test.local: 127.0.0.1
+```
+
+* `network_nameservers` - array with the dns servers
+
+```
+  - 8.8.8.8
+  - 1.1.1.1
+```
+
+## How to use
+
+```
+- hosts: server
+  roles:
+    - network
+```
+
+## Development
+
+### Test with molecule and docker
+
+* install [docker](https://docs.docker.com/engine/installation/)
+* install `python3` and `python3-pip`
+* install molecule and dependencies `pip3 install molecule python-vagrant molecule-vagrant ansible-lint pytest-testinfra yamllint`
+* run `molecule test`
+
+## License
+
+```
+Copyright (c) 2021 Adrien Waksberg
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+```

defaults/main.yml

@@ -0,0 +1,5 @@
+---
+network_hosts: {}
+network_nameservers:
+  - 8.8.8.8
+  - 1.1.1.1

molecule/default/converge.yml

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+---
+- name: Converge
+  hosts: all
+  become: true
+  roles:
+    - ansible-role-network
+  vars:
+    network_interfaces:
+      eth0:
+        address: 192.168.1.10
+        netmask: 255.255.255.0
+        gateway: 192.168.1.1
+        routes:
+          - subnet: 10.0.0.0/24
+            gateway: 192.168.1.50
+      eth1:
+        dhcp: true
+    network_hosts:
+      test.local: 127.0.0.1
+    network_search_domains:
+      - company.loc
+      - cie.loc

molecule/default/molecule.yml

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+---
+driver:
+  name: vagrant
+  provider:
+    name: libvirt
+
+platforms:
+  - name: debian10
+    box: debian/buster64
+    memory: 512
+    cpus: 1
+    instance_raw_config_args:
+      - vagrant.plugins = ["vagrant-libvirt"]
+  - name: debian11
+    box: debian/bullseye64
+    memory: 512
+    cpus: 1
+    instance_raw_config_args:
+      - vagrant.plugins = ["vagrant-libvirt"]
+lint: |
+  set -e
+  yamllint .
+  ansible-lint .
+verifier:
+  name: testinfra

molecule/default/tests/test_default.py

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+import testinfra.utils.ansible_runner
+
+def test_interface_config_file(host):
+  path = host.file('/etc/network/interfaces')
+  assert path.exists
+  assert path.is_file
+  assert path.user == 'root'
+  assert path.group == 'root'
+  assert path.mode == 0o644
+  assert path.contains('iface eth1 inet dhcp')
+  assert path.contains('iface eth0 inet static')
+  assert path.contains('  gateway 192.168.1.1')
+  assert path.contains('  post-up ip route add 10.0.0.0/24 via 192.168.1.50')
+
+def test_hosts_config_file(host):
+  path = host.file('/etc/hosts')
+  assert path.exists
+  assert path.is_file
+  assert path.user == 'root'
+  assert path.group == 'root'
+  assert path.mode == 0o644
+  assert path.contains('192.168.1.10 debian')
+  assert path.contains('127.0.0.1 test.local')
+
+def test_resolv_config_file(host):
+  path = host.file('/etc/resolv.conf')
+  assert path.exists
+  assert path.is_file
+  assert path.user == 'root'
+  assert path.group == 'root'
+  assert path.mode == 0o644
+  assert path.contains('search company.loc cie.loc')
+  assert path.contains('nameserver 8.8.8.8')
+  assert path.contains('nameserver 1.1.1.1')

tasks/main.yml

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+---
+- name: copy interfaces config
+  ansible.builtin.template:
+    src: interfaces.j2
+    dest: /etc/network/interfaces
+    owner: root
+    group: root
+    mode: 0644
+  tags: common
+
+- name: copy hosts file
+  ansible.builtin.template:
+    src: hosts.j2
+    dest: /etc/hosts
+    owner: root
+    group: root
+    mode: 0644
+  tags: common
+
+- name: copy resolv.conf file
+  ansible.builtin.template:
+    src: resolv.conf.j2
+    dest: /etc/resolv.conf
+    owner: root
+    group: root
+    mode: 0644
+  tags: common

templates/hosts.j2

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+# {{ ansible_managed }}
+127.0.0.1 localhost
+{% set interface = (network_interfaces|dict2items|first)['value'] %}
+{% if interface.dhcp is defined and interface.dhcp %}{{ ansible_default_ipv4.address }}{% else %}{{ interface.address }}{% endif %} {{ inventory_hostname }} {{ inventory_hostname_short }}
+
+::1     localhost ip6-localhost ip6-loopback
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+
+{% for host, ip in network_hosts.items() %}
+{{ ip }} {{ host }}
+{% endfor %}

templates/interfaces.j2

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+# {{ ansible_managed }}
+
+auto lo
+iface lo inet loopback
+{% for interface_name, interface in network_interfaces.items() %}
+
+auto {{ interface_name }}
+{% if interface.dhcp is defined and interface.dhcp %}
+iface {{ interface_name }} inet dhcp
+{% else %}
+iface {{ interface_name }} inet static
+  address {{ interface.address }}
+  netmask {{ interface.netmask }}
+{% if interface.gateway is defined %}
+  gateway {{ interface.gateway }}
+{% endif %}
+{% endif %}
+{% if interface.routes is defined %}
+{% for route in interface.routes %}
+  post-up ip route add {{ route.subnet }} via {{ route.gateway }}
+  post-down ip route del {{ route.subnet }} via {{ route.gateway }}
+{% endfor %}
+{% endif %}
+{% endfor %}

templates/resolv.conf.j2

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+# {{ ansible_managed }}
+{% if network_search_domains is defined %}
+search {{ network_search_domains|join(' ') }}
+{% endif %}
+{% for nameserver in network_nameservers %}
+nameserver {{ nameserver }}
+{% endfor %}