first version

.rubocop.yml

@@ -0,0 +1,38 @@
+
+AllCops:
+  Exclude:
+    - db/**/*
+    - config/**/*
+    - Vagrantfile
+  TargetRubyVersion: 2.3
+
+Naming/AccessorMethodName:
+  Enabled: false
+
+Lint/RescueWithoutErrorClass:
+  Enabled: false
+
+Metrics/LineLength:
+  Max: 120
+Metrics/CyclomaticComplexity:
+  Enabled: false
+Metrics/PerceivedComplexity:
+  Enabled: false
+Metrics/MethodLength:
+  Enabled: false
+Metrics/BlockLength:
+  Enabled: false
+Metrics/ClassLength:
+  Enabled: false
+Metrics/AbcSize:
+  Enabled: false
+
+Style/NumericLiteralPrefix:
+  Enabled: false
+Style/FrozenStringLiteralComment:
+  Enabled: false
+Style/CommandLiteral:
+  Enabled: true
+  EnforcedStyle: percent_x
+Style/Documentation:
+  Enabled: false

.travis.yml

@@ -0,0 +1,14 @@
+sudo: required
+language: ruby
+
+services:
+  - docker
+
+before_install:
+  - docker pull nishiki/ansible:stretch
+
+script:
+  - rake
+
+notifications:
+  webhooks: https://galaxy.ansible.com/api/v1/notifications/

Gemfile

@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+
+group :development do
+  gem 'rake'
+  gem 'rubocop', '0.50.0'
+  gem 'serverspec'
+end

LICENSE

@@ -0,0 +1,201 @@
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README.md

@@ -0,0 +1,49 @@
+# Ansible role: Bind
+[![Version](https://img.shields.io/badge/latest_version-0.1.0-green.svg)](https://github.com/nishiki/ansible-role-bind/releases)
+[![Build Status](https://travis-ci.org/nishiki/ansible-role-bind.svg?branch=master)](https://travis-ci.org/nishiki/ansible-role-bind)
+[![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](https://github.com/nishiki/ansible-role-bind/blob/master/LICENSE)
+
+Install and configure bind with dnssec
+
+## Requirements
+
+None
+
+## Role variables
+
+ * `bind_role` - the role `master` or `slave`, don't generate dnssec key on `slave`
+ * `bind_zones` - the dns zones
+
+## How to use
+
+```
+- hosts: dns-server
+  vars:
+    bind_role: master
+    bind_zones:
+      test.local:
+        ns_primary: ns1.test.local
+        mail: root@test.local
+        serial: 2017092202
+        dnssec: yes
+        entries:
+          - { name: '@', type: ns, value: localhost. }
+          - { name: hello, type: a, value: 1.2.3.4 }
+      hello.local:
+        ns_primary: ns1.hello.local
+        mail: root@hello.local
+        serial: 2017092201
+        dnssec: no
+        entries:
+          - { name: '@', type: ns, value: localhost. }
+          - { name: hello, type: a, value: 4.3.2.1 }
+  roles:
+    - bind 
+```
+
+## Development
+### Tests with docker
+
+  * install [docker](https://docs.docker.com/engine/installation/)
+  * install dependencies `bundle install`
+  * run the tests `rake`

Rakefile

@@ -0,0 +1,31 @@
+require 'English'
+
+ansible_role = 'bind'
+
+def exec_cmd(cmd)
+  puts cmd
+  puts %x(#{cmd})
+  raise unless $CHILD_STATUS.success?
+end
+
+task :default do
+  exec_cmd(
+    "docker run -v $(pwd):/#{ansible_role}:ro -it nishiki/ansible:stretch bash -c " \
+    "'cd /#{ansible_role} && rake verify'"
+  )
+end
+
+task verify: %w[
+  install
+]
+
+task :install do
+  exec_cmd("ansible-playbook -i tests/inventory tests/#{ansible_role}.yml")
+  exec_cmd("ansible-playbook -i tests/inventory tests/#{ansible_role}.yml | grep changed=0")
+  exec_cmd("cd spec && rspec #{ansible_role}.rb")
+end
+
+ #task :purge do
+ #  exec_cmd('ansible-playbook -i tests/inventory tests/purge.yml')
+ #  exec_cmd('cd spec && rspec purge.rb')
+ #end

handlers/main.yml

@@ -0,0 +1,4 @@
+- name: restart bind
+  service:
+    name: bind9
+    state: restarted

meta/main.yml

@@ -0,0 +1,17 @@
+galaxy_info:
+  author: Adrien Waksberg
+  description: Install and configure bind9 with dnssec
+  license: Apache2
+  min_ansible_version: 2.0
+
+  platforms:
+    - name: Debian
+      versions:
+        - jessie
+        - stretch
+
+  galaxy_tags:
+    - bind
+    - dns
+
+dependencies: []

spec/bind.rb

@@ -0,0 +1,35 @@
+require 'serverspec'
+
+set :backend, :exec
+
+%w[
+  bind9
+  cron
+].each do |package|
+  describe package(package) do
+    it { should be_installed }
+  end
+end
+
+%w[
+  db.test.local
+  db.test.local.signed
+  db.hello.local
+].each do |file|
+  describe file("/etc/bind/zones/#{file}") do
+    it { should be_file }
+    it { should be_mode 644 }
+    it { should be_owned_by 'root' }
+    it { should be_grouped_into 'root' }
+  end
+end
+
+describe command('host hello.test.local 127.0.0.1') do
+  its(:exit_status) { should eq 0 }
+  its(:stdout) { should contain('1.2.3.4') }
+end
+
+describe command('host hello.hello.local 127.0.0.1') do
+  its(:exit_status) { should eq 0 }
+  its(:stdout) { should contain('4.3.2.1') }
+end

tasks/keys.yml

@@ -0,0 +1,99 @@
+- name: check if key has been generated
+  stat:
+    path: '/etc/bind/keys/{{ item.key }}-ksk.key'
+  with_dict: '{{ bind_zones }}'
+  when: item.value.dnssec is defined and item.value.dnssec
+  register: st
+  tags: bind
+
+- name: generated keys for dnssec 1/2
+  shell: 'dnssec-keygen -a RSASHA256 -b 2048 -r /dev/urandom -n ZONE {{ item.item.key }}'
+  args:
+    chdir: /tmp
+  with_items: '{{ st.results }}'
+  when: item.stat is defined and not item.stat.exists
+  register: stdout
+  tags: bind
+
+- name: move key file 1/2
+  copy:
+    remote_src: true
+    src: '/tmp/{{ item[0].stdout }}.{{ item[1] }}'
+    dest: '/etc/bind/keys/{{ item[0].stdout }}.{{ item[1] }}'
+    owner: root
+    group: bind
+    mode: 0640
+  with_nested:
+    - '{{ stdout.results }}'
+    - ['key', 'private']
+  when: not item[0].skipped is defined
+  tags: bind
+
+- name: link key file 1/2
+  file:
+    src: '/etc/bind/keys/{{ item[0].stdout }}.{{ item[1] }}'
+    dest: '/etc/bind/keys/{{ item[0].item.item.key }}.{{ item[1] }}'
+    owner: root
+    group: root
+    state: link
+  with_nested:
+    - '{{ stdout.results }}'
+    - ['key', 'private']
+  when: not item[0].skipped is defined
+  tags: bind
+
+- name: remove old key file 1/2
+  file:
+    path: '{{ item[0].stdout }}.{{ item[1] }}'
+    state: absent
+  with_nested:
+    - '{{ stdout.results }}'
+    - ['key', 'private']
+  when: not item[0].skipped is defined
+  tags: bind
+
+- name: generated keys for dnssec 2/2
+  shell: 'dnssec-keygen -f KSK -a RSASHA256 -b 4096 -r /dev/urandom -n ZONE {{ item.item.key }}'
+  args:
+    chdir: /tmp
+  with_items: '{{ st.results }}'
+  when: item.stat is defined and not item.stat.exists
+  register: stdout
+  tags: bind
+
+- name: move key file 2/2
+  copy:
+    remote_src: true
+    src: '/tmp/{{ item[0].stdout }}.{{ item[1] }}'
+    dest: '/etc/bind/keys/{{ item[0].stdout }}.{{ item[1] }}'
+    owner: root
+    group: bind
+    mode: 0640
+  with_nested:
+    - '{{ stdout.results }}'
+    - ['key', 'private']
+  when: not item[0].skipped is defined
+  tags: bind
+
+- name: link key file 2/2
+  file:
+    src: '/etc/bind/keys/{{ item[0].stdout }}.{{ item[1] }}'
+    dest: '/etc/bind/keys/{{ item[0].item.item.key }}-ksk.{{ item[1] }}'
+    owner: root
+    group: root
+    state: link
+  with_nested:
+    - '{{ stdout.results }}'
+    - ['key', 'private']
+  when: not item[0].skipped is defined
+  tags: bind
+
+- name: remove old key file 2/2
+  file:
+    path: '{{ item[0].stdout }}.{{ item[1] }}'
+    state: absent
+  with_nested:
+    - '{{ stdout.results }}'
+    - ['key', 'private']
+  when: not item[0].skipped is defined
+  tags: bind

tasks/main.yml

@@ -0,0 +1,88 @@
+- name: install packages for bind9
+  apt:
+    name: '{{ item }}'
+    state: present
+  with_items:
+    - bind9
+    - bind9-host
+    - cron
+  tags: bind
+
+- name: create zone directory
+  file:
+    path: /etc/bind/zones
+    owner: bind
+    group: bind
+    mode: 0700
+    state: directory
+  tags: bind
+
+- name: create log directory
+  file:
+    path: /var/log/named
+    owner: bind
+    group: bind
+    mode: 0700
+    state: directory
+  tags: bind
+
+- name: copy bind configuration files
+  template:
+    src: '{{ item }}.j2'
+    dest: '/etc/bind/{{ item }}'
+    owner: root
+    group: root
+    mode: 0644
+  with_items:
+    - named.conf
+    - named.conf.options
+    - named.conf.local
+  notify: restart bind
+  tags: bind
+
+- name: create keys directory
+  file:
+    path: /etc/bind/keys
+    owner: root
+    group: bind
+    mode: 0750
+    state: directory
+  tags: bind
+
+- include: keys.yml
+  when: bind_role == 'master'
+
+- name: copy zone files
+  template:
+    src: db.j2
+    dest: '/etc/bind/zones/db.{{ item.key }}'
+    owner: root
+    group: root
+    mode: 0644
+  with_dict: '{{ bind_zones }}'
+  register: zone
+  notify: restart bind
+  tags: bind
+
+- name: dnssec sign
+  shell: 'cd /etc/bind/keys && dnssec-signzone -3 $(head -n 1000 /dev/urandom | sha1sum | cut -b 1-16) -A -N INCREMENT -o {{ item.item.key }} -t /etc/bind/zones/db.{{ item.item.key }}'
+  with_items: '{{ zone.results }}'
+  when: item.changed and item.item.value.dnssec is defined and item.item.value.dnssec
+  notify: restart bind
+  tags: bind
+
+- name: add cron dnssec
+  template:
+    src: dnssec.j2
+    dest: /etc/cron.weekly/dnssec
+    owner: root
+    group: root
+    mode: 0700
+  tags: bind
+
+- name: enable and start bind9
+  service:
+    name: bind9
+    enabled: yes
+    state: started
+  tags: bind

templates/db.j2

@@ -0,0 +1,23 @@
+; {{ ansible_managed }}
+
+$TTL    {{ item.value.ttl|default(3600) }}
+@       IN      SOA    {{ item.value.ns_primary }}. {{ item.value.mail|replace('@', '.') }}. (
+{{ item.value.serial }} ; Serial
+{{ item.value.refresh|default(14400) }} ; Refresh
+{{ item.value.retry|default(86400) }} ; Retry
+{{ item.value.expire|default(2419200) }} ; Expire
+{{ item.value.negative_cache|default(86400) }} ; Negative Cache TTL
+)
+
+{% for entry in item.value.entries %}
+{% if entry.type|upper == 'MX' %}
+{{ entry.name }}{% for i in range(0, 15 - entry.name|length) %} {% endfor %} IN MX {{ entry.priority }}     {{ entry.value }}
+{% else %}
+{{ entry.name }}{% for i in range(0, 15 - entry.name|length) %} {% endfor %} IN {{ entry.type|upper }}{% for i in range(0, 9 - entry.type|length) %} {% endfor %} {{ entry.value }}
+{% endif %}
+{% endfor %}
+{% if 'dnssec' in item.value and item.value.dnssec %}
+
+$INCLUDE {{ item.key }}.key
+$INCLUDE {{ item.key }}-ksk.key
+{% endif %}

templates/dnssec.j2

@@ -0,0 +1,12 @@
+#!/bin/bash
+# {{ ansible_managed }}
+
+cd /etc/bind/keys
+
+{% for zone, value in bind_zones.iteritems() %}
+{% if 'dnssec' in value and value.dnssec %}
+dnssec-signzone -3 $(head -n 1000 /dev/urandom | sha1sum | cut -b 1-16) -A -N INCREMENT -o {{ zone }} -t /etc/bind/zones/db.{{ zone }}
+{% endif %}
+{% endfor %}
+
+systemctl restart bind9

templates/named.conf.j2

@@ -0,0 +1,16 @@
+# {{ ansible_managed }}
+
+include "/etc/bind/named.conf.options";
+include "/etc/bind/named.conf.default-zones";
+include "/etc/bind/named.conf.local";
+
+logging {
+    channel security_file {
+        file "/var/log/named/security.log" versions 3 size 30m;
+        severity dynamic;
+        print-time yes;
+    };
+    category security {
+        security_file;
+    };
+};

templates/named.conf.local.j2

@@ -0,0 +1,13 @@
+# {{ ansible_managed }}
+{% for zone, value in bind_zones.iteritems() %}
+
+zone "{{ zone }}" IN {
+	type master;
+{% if 'dnssec' in value and value.dnssec %}
+	file "/etc/bind/zones/db.{{ zone }}.signed";
+{% else %}
+	file "/etc/bind/zones/db.{{ zone }}";
+{% endif %}
+	allow-transfer { 217.70.177.40; };
+};
+{% endfor %}

templates/named.conf.options.j2

@@ -0,0 +1,15 @@
+# {{ ansible_managed }}
+
+options {
+	directory "/var/cache/bind";
+
+	dnssec-enable yes;
+	dnssec-validation yes;
+	dnssec-lookaside auto;
+
+	auth-nxdomain no;    # conform to RFC1035
+	listen-on { any; };
+	listen-on-v6 { none; };
+
+	version none;
+};

tests/bind

@@ -0,0 +1 @@
+..

tests/bind.yml

@@ -0,0 +1,32 @@
+- hosts: localhost
+  connection: local
+  vars:
+    bind_role: master
+    bind_zones:
+      test.local:
+        ns_primary: ns1.test.local
+        mail: root@test.local
+        serial: 2017092202
+        ttl: 3600
+        refresh: 14400
+        retry: 86400
+        expire: 2419200
+        negative_cache: 86400
+        dnssec: yes
+        entries:
+          - { name: '@', type: mx, priority: 20, value: mail.test.local. }
+          - { name: '@', type: ns, value: localhost. }
+          - { name: hello, type: a, value: 1.2.3.4 }
+      hello.local:
+        ns_primary: ns1.hello.local
+        mail: root@hello.local
+        serial: 2017092201
+        dnssec: no
+        entries:
+          - { name: '@', type: mx, priority: 20, value: mail.test.local. }
+          - { name: '@', type: ns, value: localhost. }
+          - { name: hello, type: a, value: 4.3.2.1 }
+
+  roles:
+      - bind
+

tests/inventory

@@ -0,0 +1 @@
+localhost