ADD import roles

roles/interfaces/defaults/main.yml

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+net_interfaces: []
+interfaces_manage_ifupdown: true

roles/interfaces/handlers/main.yml

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+---
+- name: Reload udev
+  # TODO! FIXME!
+  systemd_service:
+    name: systemd-udev-trigger.service
+    state: restarted
+- name: Reload ifupdown
+  # TODO! FIXME! This drops some packages. Can this be done better?
+  systemd_service:
+    name: networking.service
+    state: restarted
+  throttle: 1

roles/interfaces/tasks/main.yml

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+---
+- name: Set OS dependent variables
+  include_vars: "{{ lookup('first_found', params) }}"
+  vars:
+    params:
+      files:
+        - "{{ ansible_distribution | lower }}_{{ ansible_distribution_version | lower }}.yml"
+        - "{{ ansible_distribution | lower }}_{{ ansible_distribution_major_version | lower }}.yml"
+        - "{{ ansible_distribution | lower }}.yml"
+        - "{{ ansible_os_family | lower }}.yml"
+        - "{{ ansible_system | lower }}.yml"
+      paths:
+        - "{{ role_path }}/vars"
+  ignore_errors: True
+  tags:
+    - always
+
+- name: OS is supported
+  assert:
+    that: __os_supported
+    quiet: True
+  vars:
+    __os_supported: "{{ lookup('vars', '{}_os_supported'.format(role_name)) | bool }}"
+  tags:
+    - always
+
+- name: Install required packages
+  package:
+    name: "{{ item }}"
+    state: present
+  with_items: "{{ lookup('vars', '{}_packages'.format(role_name)) | list }}"
+  tags:
+    - install
+
+- name: Install persistent if-names
+  template:
+    src: 60-persistent-net.rules.j2
+    dest: "/etc/udev/rules.d/60-persistent-net.rules"
+    owner: root
+    group: root
+    mode: 0644
+  tags:
+    - configure
+  no_log: false
+  notify: Reload udev
+
+- name: Install ifupdown config
+  template:
+    src: ifupdown2.j2
+    dest: "/etc/network/interfaces.d/ansible"
+    owner: root
+    group: root
+    mode: 0644
+  tags:
+    - configure
+  no_log: false
+  notify: Reload ifupdown

roles/interfaces/templates/60-persistent-net.rules.j2

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+{% for iface in net_interfaces %}
+{% if iface.name is defined and iface.mac is defined %}
+SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="{{ iface.mac }}", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="e*", NAME="{{ iface.name }}"
+{% endif %}
+{% endfor %}

roles/interfaces/templates/ifupdown2.j2

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+# {{ ansible_managed }}
+
+{% macro iface_config(iface, type, inet) %}
+iface {{ iface.name }} {{ type }} {{ inet.conf | default('manual') }}
+{% if iface.vlan_raw_device is defined %}
+    vlan-raw-device {{ iface.vlan_raw_device }}
+{% endif %}
+{% if iface.dummy | default(false) %}
+    pre-up ip link show $IFACE > /dev/null || sudo ip link add $IFACE type dummy
+    post-down ip link show $IFACE > /dev/null && sudo ip link del $IFACE
+{% endif %}
+{% for addr in inet.addr %}
+    up ip addr add {{ addr }} dev $IFACE
+    pre-down ip addr del {{ addr }} dev $IFACE
+{% endfor %}
+{% if inet.gateway is defined and inet.gateway %}
+    up ip r add default via {{ inet.gateway }} dev $IFACE
+    pre-down ip r del default via {{ inet.gateway }} dev $IFACE
+{% endif %}
+{% if inet.routes is defined and inet.routes %}
+{% for route in inet.routes %}
+    post-up ip r add {{ route.dst }} via {{ route.via }} dev $IFACE
+    pre-down ip r del {{ route.dst }} via {{ route.via }} dev $IFACE
+{% endfor %}
+{% endif %}
+{% if inet.custom is defined and inet.custom %}
+    {{ inet.custom | default('') | indent(4) }}
+{% endif %}
+{% endmacro %}
+
+{% for iface in net_interfaces %}
+{% if interfaces_manage_ifupdown or (iface.ifupdown | default(false)) %}
+# {{ iface.name }}
+allow-hotplug {{ iface.name }}
+{% if iface.inet is defined and iface.inet %}
+{{ iface_config(iface, 'inet', iface.inet) }}
+{% endif %}
+{% if iface.inet6 is defined and iface.inet6 %}
+{{ iface_config(iface, 'inet6', iface.inet6) }}
+{% endif %}
+
+{% endif %}
+{% endfor %}

roles/interfaces/vars/debian.yml

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+interfaces_os_supported: true
+interfaces_packages:
+  - ifupdown
+  - udev
+  - vlan

roles/interfaces/vars/main.yml

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+interfaces_os_supported: false