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Ersatz PiHole durch dnsmasq direkt (#298)

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Co-authored-by: Michael Grote <michael.grote@posteo.de>
Reviewed-on: mg/ansible#298
Co-authored-by: mg <michael.grote@posteo.de>
Co-committed-by: mg <michael.grote@posteo.de>
This commit is contained in:
Michael Grote 2022-01-15 11:19:04 +01:00
parent c73037ce5c
commit fac0c68c5c
15 changed files with 981 additions and 29 deletions
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60
group_vars/pihole.yml → group_vars/dnsmasq.yml
View file

@ -6,11 +6,6 @@
protocol: tcp
comment: 'ssh'
from_ip: 0.0.0.0/0
- rule: allow
to_port: 80
comment: 'pihole-webgui'
from_ip: 0.0.0.0/0
protocol: tcp
- rule: allow
to_port: 4949
protocol: tcp
@ -18,10 +13,8 @@
from_ip: 192.168.2.144/24
- rule: allow
to_port: 53
comment: 'pihole-dns'
comment: 'dns'
from_ip: 0.0.0.0/0
## playbook
pihole_homer_fqdn: docker.grote.lan # unter welchem host ist docker erreichbar? notwendig für die pihole stats in homer; fur die cors abfrage
### mgrote.restic
restic_repository: "//192.168.2.36/restic"
### mgrote.ntp_chrony_server
@ -29,6 +22,7 @@
- address: pool.ntp.org
options: iburst #optionaler parameter
### mgrote.apt_manage_sources
# wird leer gesetzt da dnsmasq NICHT den Router befragt und daher keine Lokalen Hostnamen abfragen kann
manage_sources_apt_proxy: ""
### geerlingguy.munin-node
munin_node_plugins:
@ -41,22 +35,6 @@
config: |
[lvm_*]
user root
- name: pihole_cache
src: https://git.mgrote.net/mg/munin-plugins/raw/branch/master/extern/pihole/pihole_cache
config: |
[pihole_*]
user root
env.host 127.0.0.1
env.port 80
env.api /admin/api.php
- name: pihole_clients
src: https://git.mgrote.net/mg/munin-plugins/raw/branch/master/extern/pihole/pihole_clients
- name: pihole_queries
src: https://git.mgrote.net/mg/munin-plugins/raw/branch/master/extern/pihole/pihole_queries
- name: pihole_blocked_domains
src: https://git.mgrote.net/mg/munin-plugins/raw/branch/master/extern/pihole/pihole_blocked_domains
- name: pihole_ads_percentage
src: https://git.mgrote.net/mg/munin-plugins/raw/branch/master/extern/pihole/pihole_ads_percentage
- name: fail2ban
src: https://git.mgrote.net/mg/munin-plugins/raw/branch/master/extern/fail2ban
config: |
@ -64,3 +42,37 @@
env.client /usr/bin/fail2ban-client
env.config_dir /etc/fail2ban
user root
- name: lvm_
src: https://git.mgrote.net/mg/munin-plugins/raw/branch/master/extern/dnsmasq
### mgrote.dnsmasq
# Welche DNS-Server soll dnsmasq anfragen?
dnsmasq_resolver:
- 9.9.9.9
- 1.1.1.1
dnsmasq_log_queries: true
dnsmasq_logfile: /var/log/dnsmasq.log
dnsmasq_blocklists:
- name: sysctl.org
state: present
url: http://sysctl.org/cameleon/hosts
- name: StevenBlack.1
state: present
url: https://raw.githubusercontent.com/StevenBlack/hosts/master/data/KADhosts/hosts
- name: StevenBlack.2
state: present
url: https://raw.githubusercontent.com/StevenBlack/hosts/master/data/add.Spam/hosts
- name: adaway.org
state: present
url: https://adaway.org/hosts.txt
- name: StevenBlack.3
state: present
url: https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts
- name: developerdan.1
state: present
url: https://www.github.developerdan.com/hosts/lists/ads-and-tracking-extended.txt
- name: developerdan.2
state: present
url: https://www.github.developerdan.com/hosts/lists/amp-hosts-extended.txt
dnsmasq_cache_size: 10000
dnsmasq_port: 53
dnsmasq_never_forward_domain: grote.lan

10
inventory
View file

@ -8,10 +8,10 @@ all:
hosts:
fileserver2.grote.lan:
fileserver2-test.grote.lan:
pihole:
dnsmasq:
hosts:
pihole2-test.grote.lan:
pihole2.grote.lan:
dnsmasq-test.grote.lan:
dnsmasq.grote.lan:
ntpserver:
hosts:
ntp-server-test.grote.lan:
@ -61,7 +61,7 @@ all:
ansible2.grote.lan:
pve2.grote.lan:
gitea.grote.lan:
pihole2.grote.lan:
dnsmasq.grote.lan:
ntp-server.grote.lan:
docker2.grote.lan:
docker3.grote.lan:
@ -75,7 +75,7 @@ all:
vm-test2.grote.lan:
pve2-test.grote.lan:
gitea-test.grote.lan:
pihole2-test.grote.lan:
dnsmasq-test.grote.lan:
ntp-server-test.grote.lan:
fileserver2-test.grote.lan:
bastelstube-gui.grote.lan:

4
playbooks/3_service/dnsmasq.yml Normal file
View file

@ -0,0 +1,4 @@
---
- hosts: dnsmasq
roles:
- { role: mgrote.dnsmasq_adblocker, tags: "dns", become: true }

674
roles/mgrote.dnsmasq_adblocker/LICENSE Normal file
View file

@ -0,0 +1,674 @@
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## mgrote.dnsmasq-adblocker
### Beschreibung
Installiert ``dnsmasq`` als reinen DNS-Server mit Werbeblockerfunktion.
### getestet auf
- [X] Ubuntu (>=20.04)
### Variablen + Defaults
see [defaults](./defaults/main.yml)
### Abgekupfert bei
* https://alexellisuk.medium.com/lightweight-ad-blocking-with-dnsmasq-and-raspberry-pi-665dbb3242e3
* https://www.atemlire.io/how-to-easily-create-your-own-adblock-using-dnsmasq
* https://pi-hole.net

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---
# Welche DNS-Server soll dnsmasq anfragen?
dnsmasq_resolver:
- 9.9.9.9
- 1.1.1.1
# Soll dnsmasq alle Anfragen loggen?
dnsmasq_log_queries: false
# Wohin soll das Log geschrieben werden?
dnsmasq_logfile: /var/log/dnsmasq.log
# Welche BLocklisten sollen verwendet werden?
dnsmasq_blocklists:
- name: sysctl.org
state: present
url: http://sysctl.org/cameleon/hosts
- name: StevenBlack.1
state: present
url: https://raw.githubusercontent.com/StevenBlack/hosts/master/data/KADhosts/hosts
- name: StevenBlack.2
state: present
url: https://raw.githubusercontent.com/StevenBlack/hosts/master/data/add.Spam/hosts
- name: adaway.org
state: present
url: https://adaway.org/hosts.txt
- name: StevenBlack.3
state: present
url: https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts
- name: developerdan.1
state: present
url: https://www.github.developerdan.com/hosts/lists/ads-and-tracking-extended.txt
- name: developerdan.2
state: present
url: https://www.github.developerdan.com/hosts/lists/amp-hosts-extended.txt
# Wie groß soll der Cache sein?
dnsmasq_cache_size: 10000
# Auf welchem Port soll dnsmasq laufen?
dnsmasq_port: 53
# User und Gruppe für dnsmasq
dnsmasq_user_group: dnsmasq
dnsmasq_user: dnsmasq
# Which domain should never be forwarded tor the "dnsmasq_resolvers"
dnsmasq_never_forward_domain: local.lan

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---
- name: restart dnsmasq
become: yes
ansible.builtin.systemd:
name: dnsmasq
state: restarted

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---
- name: download blocklist(s)
ansible.builtin.get_url:
url: "{{ item.url }}"
dest: "/etc/dnsmasq.d/blocklists/{{ item.name }}"
owner: "{{ dnsmasq_user }}"
group: "{{ dnsmasq_user_group }}"
loop: "{{ dnsmasq_blocklists }}"
when: item.state == "present"
notify: restart dnsmasq
register: download
- name: remove blocklist(s)
ansible.builtin.file:
path: "/etc/dnsmasq.d/blocklists/{{ item.name }}"
state: absent
loop: "{{ dnsmasq_blocklists }}"
when: item.state == "absent"
notify: restart dnsmasq

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---
- name: template /etc/dnsmasq.conf
become: yes
ansible.builtin.template:
src: dnsmasq.conf.j2
dest: /etc/dnsmasq.conf
owner: "{{ dnsmasq_user }}"
group: "{{ dnsmasq_user_group }}"
notify: restart dnsmasq

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---
- name: ensure packages are installed
become: yes
ansible.builtin.package:
name:
- dnsmasq
- wget
state: present
register: install
- name: stop dnsmasq (to prevent accidental DHCP-Server after installation)
become: yes
ansible.builtin.service:
name: dnsmasq
state: stopped
when: install.changed
- name: ensure group exists
become: true
ansible.builtin.group:
name: "{{ dnsmasq_user_group }}"
state: present
when:
- dnsmasq_user_group is defined
- name: ensure user exists
become: true
ansible.builtin.user:
name: "{{ dnsmasq_user }}"
group: "{{ dnsmasq_user_group }}"
shell: /usr/sbin/nologin
create_home: no
when:
- dnsmasq_user_group is defined
- dnsmasq_user is defined
- name: ensure needed directories exists
become: yes
ansible.builtin.file:
path: "{{ item }}"
state: directory
owner: "{{ dnsmasq_user }}"
group: "{{ dnsmasq_user_group }}"
loop:
- /etc/dnsmasq.d
- /etc/dnsmasq.d/blocklists
- name: clear default directories
become: yes
ansible.builtin.file:
path: "{{ item }}"
state: absent
loop:
- /etc/dnsmasq.d/README
- name: template logrotate config
become: yes
ansible.builtin.template:
src: logrotate.j2
dest: /etc/logrotate.d/dnsmasq
owner: "{{ dnsmasq_user }}"
group: "{{ dnsmasq_user_group }}"

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---
- name: include install tasks
include_tasks: install.yml
- name: include configuration tasks
include_tasks: config.yml
- name: include systemd tasks
include_tasks: services.yml
- name: include blocklist tasks
include_tasks: blocklist.yml

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---
- name: stop systemd-resolved service
ansible.builtin.systemd:
name: systemd-resolved
state: stopped
- name: mask systemd-resolved service
ansible.builtin.systemd:
name: systemd-resolved
masked: yes
state: stopped
- name: template /etc/resolv.conf
ansible.builtin.template:
src: resolv.conf.j2
dest: /etc/resolv.conf
backup: yes
notify: restart dnsmasq

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{{ file_header | default () }}
# Listen on this specific port instead of the standard DNS port
# (53). Setting this to zero completely disables DNS function,
# leaving only DHCP and/or TFTP.
port={{ dnsmasq_port }}
# If you want dnsmasq to listen for DHCP and DNS requests only on
# specified interfaces (and the loopback) give the name of the
# interface (eg eth0) here.
# Repeat the line for more than one interface.
interface={{ ansible_default_ipv4.interface }}
# If you want dnsmasq to provide only DNS service on an interface,
# configure it as shown above, and then use the following line to
# disable DHCP and TFTP on it.
no-dhcp-interface={{ ansible_default_ipv4.interface }}
# Set the cachesize here.
cache-size={{ dnsmasq_cache_size }}
log-facility={{ dnsmasq_logfile }}
# Never forward plain names (without a dot or domain part)
domain-needed
# Never forward addresses in the non-routed address spaces.
bogus-priv
# If you don't want dnsmasq to read /etc/hosts, uncomment the
# following line.
no-hosts
# Add local-only domains here, queries in these domains are answered
# from /etc/hosts or DHCP only.
local=/{{ dnsmasq_never_forward_domain }}/
# RFC 6761: Caching DNS servers SHOULD recognize
# test, localhost, invalid
# names as special and SHOULD NOT attempt to look up NS records for them, or
# otherwise query authoritative DNS servers in an attempt to resolve these
# names.
server=/test/
server=/localhost/
server=/invalid/
# OpenWRT furthermore blocks bind, local, onion domains
# see https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob_plain;f=package/network/services/dnsmasq/files/rfc6761.conf;hb=HEAD
# and https://www.iana.org/assignments/special-use-domain-names/special-use-domain-names.xhtml
server=/bind/
server=/onion/
# If you don't want dnsmasq to read /etc/hosts, uncomment the
# following line.
#no-hosts
# or if you want it to read another file, as well as /etc/hosts, use
# this.
addn-hosts=/etc/dnsmasq.d/blocklists
{% if dnsmasq_log_queries is sameas true %}
# For debugging purposes, log each DNS query as it passes through
# dnsmasq.
log-queries
{% endif %}

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{{ file_header | default () }}
{{ dnsmasq_logfile }} {
su root root
create 0640 root root
rotate 4
daily
compress
missingok
notifempty
dateext
dateyesterday
}

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{{ file_header | default () }}
{% for item in dnsmasq_resolver %}
nameserver {{ item }}
{% endfor %}