[CODE] add tasks

.gitignore

@@ -0,0 +1,2 @@
+templates/tmp/
+files/tmp/

README.md

@@ -13,7 +13,17 @@ none
 Role Variables
 --------------
 
-TODO
+Central configuration:
+* `tinc_vpn_id`: name of the vpn to be created (default: `vpn0`)
+* `tinc_central_host`: hostname of the always-on server (default: `hetzner-01`)
+* `tinc_vpn_net`: local vpn network (IPv4, CIDR notation)
+* `tinc_remote_nets`: list of remote networks, that should be forwarded to localhost (TODO: currently only one entry supported)
+  * `net_cidr`: IPv4 network range (CIDR notation)
+  * `gateway`: VPN network IP address of the gateway
+
+Configuration for each host:
+* `tinc_client_ip`: own IP address in the tinc-local network
+* `tinc_public_addr`: public domain or IP address of the central server
 
 
 Dependencies

defaults/main.yml

@@ -1,2 +1,10 @@
 ---
-# defaults file for tinc
+# defaults file for tinc
+tinc_base_dir: /etc/tinc
+tinc_tmp_pubkey: "tmp/rsa_key-{{ ansible_hostname }}.pub"
+
+# ID of the vpn to create
+tinc_vpn_id: vpn0
+
+# hostname of the always-on server
+tinc_central_host: hetzner-01

tasks/distribute.yml

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+---
+# Tinc VPN Hostfile Distribution
+
+- name: Distribute - Set different base dir for macOS
+  set_fact:
+    tinc_base_dir: /usr/local/etc/tinc
+  when: (override_os_family is defined) | ternary(override_os_family,ansible_os_family) == "Darwin"
+
+- name: Distribute - Copy hostfiles to targets
+  become: yes
+  copy:
+    src: "{{ role_path }}/files/tmp/"
+    dest: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}/hosts/"

tasks/main.yml

@@ -1,2 +1,93 @@
 ---
-# tasks file for tinc
+# Tinc VPN Setup and Configuration
+
+- name: Main - Set different base dir for macOS
+  set_fact:
+    tinc_base_dir: /usr/local/etc/tinc
+  when: (override_os_family is defined) | ternary(override_os_family,ansible_os_family) == "Darwin"
+
+- name: Main - Install tinc
+  include_tasks: "{{ item }}"
+  with_first_found:
+    - "setup-{{ ansible_distribution }}.yml"
+    - "setup-{{ (override_os_family is defined) | ternary(override_os_family,ansible_os_family) }}.yml"
+
+
+- name: Main - Create tinc directories
+  become: yes
+  file:
+    path: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}/hosts"
+    state: directory
+    mode: '0755'
+
+- name: Main - Create new host keypair
+  become: yes
+  shell: |
+    export PATH=/usr/local/sbin:/usr/local/bin:$PATH
+    tincd -n {{ tinc_vpn_id }} -K4096
+  args:
+    chdir: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}"
+    creates: rsa_key.priv
+
+- name: Main - Create config
+  become: yes
+  template:
+    src: "{{ role_path }}/templates/tinc.conf.j2"
+    dest: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}/tinc.conf"
+
+- name: Main - Fetch public key
+  become: yes
+  fetch:
+    src: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}/rsa_key.pub"
+    dest: "{{ role_path }}/templates/tmp/rsa_key-{{ ansible_hostname }}.pub"
+    flat: yes
+
+- name: Main - Create own hostfile
+  become: yes
+  template:
+    src: "{{ role_path }}/templates/hostfile.j2"
+    dest: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}/hosts/{{ ansible_hostname }}"
+
+
+- name: Main - Create tinc-up script
+  become: yes
+  template:
+    src: "{{ role_path }}/templates/tinc-up.j2"
+    dest: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}/tinc-up"
+    mode: '0755'
+
+- name: Main - Create tinc-down script
+  become: yes
+  template:
+    src: "{{ role_path }}/templates/tinc-down.j2"
+    dest: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}/tinc-down"
+    mode: '0755'
+
+
+- name: Tinc - Fetch all hostfiles
+  become: yes
+  fetch:
+    src: "{{ tinc_base_dir }}/{{ tinc_vpn_id }}/hosts/{{ ansible_hostname }}"
+    dest: "{{ role_path }}/files/tmp/{{ ansible_hostname }}"
+    flat: yes
+
+
+- name: "Main - Enable {{ tinc_vpn_id }}"
+  become: yes
+  block:
+    - name: "Main - Enable {{ tinc_vpn_id }} in tinc config"
+      lineinfile:
+        name: "{{ tinc_base_dir }}/nets.boot"
+        line: "{{ tinc_vpn_id }}"
+        create: yes
+    - name: "Main - Enable and restart tinc service"
+      systemd:
+        name: tinc
+        state: restarted
+        enabled: yes
+    - name: "Main - Enable and restart tinc@{{ tinc_vpn_id }} service"
+      systemd:
+        name: "tinc@{{ tinc_vpn_id }}"
+        state: restarted
+        enabled: yes
+  when: inventory_hostname != 'localhost'

tasks/setup-Darwin.yml

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+---
+# Tinc/Setup: Install tinc application - macOS Version
+
+- name: Setup - Install
+  package:
+    name: "{{ packages }}"
+    state: present
+  vars:
+    packages:
+    - tinc

tasks/setup-Debian.yml

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+---
+# Tinc/Setup: Install tinc application - Debian Version
+
+- name: Setup - Install
+  become: yes
+  apt:
+    name: "{{ packages }}"
+    state: present
+  vars:
+    packages:
+    - tinc

templates/hostfile.j2

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+{% if tinc_public_addr is defined %}
+Address = {{ tinc_public_addr }}
+{% endif %}
+Subnet = {{ tinc_client_ip }}/32
+{% if tinc_client_ip == tinc_remote_nets[0].gateway %}
+Subnet = {{ tinc_remote_nets[0].net_cidr }}
+{% endif %}
+
+{% include tinc_tmp_pubkey %}

templates/tinc-down.j2

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+#!/bin/sh
+
+{% if ansible_hostname == 'hetzner-01' %}
+/sbin/ifconfig $INTERFACE down
+/usr/sbin/ip rule del to {{ tinc_remote_nets[0].net_cidr }} table 5
+
+{% elif ansible_hostname == 'RaspiBeyerstedt' %}
+/sbin/ifconfig $INTERFACE down
+/bin/ip route del {{ tinc_remote_nets[0].net_cidr }} dev eth0
+
+{% elif ansible_hostname == 'Magrathea' %}
+/sbin/ifconfig $INTERFACE down
+/sbin/route -n delete -net {{ tinc_remote_nets[0].net_cidr }}  {{ tinc_remote_nets[0].gateway }}
+
+{% endif %}

templates/tinc-up.j2

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+#!/bin/sh
+
+{% if ansible_hostname == 'hetzner-01' %}
+/sbin/ifconfig $INTERFACE {{ tinc_client_ip | ipaddr('address') }} netmask 255.255.255.0
+
+/usr/sbin/ip rule add to {{ tinc_remote_nets[0].net_cidr }} table 5
+/usr/sbin/ip route add {{ tinc_remote_nets[0].net_cidr }} via {{ tinc_remote_nets[0].gateway }} dev {{ tinc_vpn_id }} table 5
+
+{% elif ansible_hostname == 'RaspiBeyerstedt' %}
+/sbin/ifconfig $INTERFACE {{ tinc_client_ip | ipaddr('address') }} netmask 255.255.255.0
+
+/bin/bash -c "echo 1 > /proc/sys/net/ipv4/ip_forward"
+/bin/ip route add {{ tinc_remote_nets[0].net_cidr }} dev eth0
+
+iptables -t nat -A POSTROUTING -o eth0 -s {{ tinc_vpn_net }} -j MASQUERADE
+
+{% elif ansible_hostname == 'Magrathea' %}
+# only a single endpoint works, because tun interface is p2p
+/sbin/ifconfig tun0 inet {{ tinc_client_ip | ipaddr('address') }} {{ tinc_remote_nets[0].gateway }} up netmast 255.255.255.0
+
+/sbin/route -n add -net {{ tinc_remote_nets[0].net_cidr }}  {{ tinc_remote_nets[0].gateway }}
+
+{% endif %}

templates/tinc.conf.j2

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+Name = {{ ansible_hostname }}
+{% if (override_os_family is defined) | ternary(override_os_family,ansible_os_family) != 'Darwin' %}
+Device = /dev/net/tun
+{% endif %}
+{% if ansible_hostname != tinc_central_host %}
+ConnectTo = {{ tinc_central_host }}
+{% endif %}
+AddressFamily = any