Ersatz PiHole durch dnsmasq direkt (#298)

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>
2022-01-15 11:19:04 +01:00 · 2022-01-15 11:19:04 +01:00 · fac0c68c5c
commit fac0c68c5c
parent c73037ce5c
15 changed files with 981 additions and 29 deletions
--- a/group_vars/dnsmasq.yml
+++ b/group_vars/dnsmasq.yml
@ -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
--- a/10
+++ b/10
@ -8,10 +8,10 @@ all:
      hosts:
        fileserver2.grote.lan:
        fileserver2-test.grote.lan:
-    pihole:
+    dnsmasq:
      hosts:
-        pihole2-test.grote.lan:
+        dnsmasq-test.grote.lan:
-        pihole2.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:
--- a/playbooks/3_service/dnsmasq.yml
+++ b/playbooks/3_service/dnsmasq.yml
@ -0,0 +1,4 @@
 ---
  - hosts: dnsmasq
    roles:
      - { role: mgrote.dnsmasq_adblocker, tags: "dns", become: true }
--- a/roles/mgrote.dnsmasq_adblocker/LICENSE
+++ b/roles/mgrote.dnsmasq_adblocker/LICENSE
@ -0,0 +1,674 @@
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--- a/roles/mgrote.dnsmasq_adblocker/README.md
+++ b/roles/mgrote.dnsmasq_adblocker/README.md
@ -0,0 +1,16 @@
 ## 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
--- a/roles/mgrote.dnsmasq_adblocker/defaults/main.yml
+++ b/roles/mgrote.dnsmasq_adblocker/defaults/main.yml
@ -0,0 +1,41 @@
 ---
  # 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
--- a/roles/mgrote.dnsmasq_adblocker/handlers/main.yml
+++ b/roles/mgrote.dnsmasq_adblocker/handlers/main.yml
@ -0,0 +1,6 @@
 ---
  - name: restart dnsmasq
    become: yes
    ansible.builtin.systemd:
      name: dnsmasq
      state: restarted
--- a/roles/mgrote.dnsmasq_adblocker/tasks/blocklist.yml
+++ b/roles/mgrote.dnsmasq_adblocker/tasks/blocklist.yml
@ -0,0 +1,19 @@
 ---
  - 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
--- a/roles/mgrote.dnsmasq_adblocker/tasks/config.yml
+++ b/roles/mgrote.dnsmasq_adblocker/tasks/config.yml
@ -0,0 +1,9 @@
 ---
  - 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
--- a/roles/mgrote.dnsmasq_adblocker/tasks/install.yml
+++ b/roles/mgrote.dnsmasq_adblocker/tasks/install.yml
@ -0,0 +1,62 @@
 ---
  - 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 }}"
--- a/roles/mgrote.dnsmasq_adblocker/tasks/main.yml
+++ b/roles/mgrote.dnsmasq_adblocker/tasks/main.yml
@ -0,0 +1,12 @@
 ---
  - 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
--- a/roles/mgrote.dnsmasq_adblocker/tasks/services.yml
+++ b/roles/mgrote.dnsmasq_adblocker/tasks/services.yml
@ -0,0 +1,18 @@
 ---
  - 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
--- a/roles/mgrote.dnsmasq_adblocker/templates/dnsmasq.conf.j2
+++ b/roles/mgrote.dnsmasq_adblocker/templates/dnsmasq.conf.j2
@ -0,0 +1,63 @@
 {{ 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 %}
--- a/roles/mgrote.dnsmasq_adblocker/templates/logrotate.j2
+++ b/roles/mgrote.dnsmasq_adblocker/templates/logrotate.j2
@ -0,0 +1,12 @@
 {{ file_header | default () }}
 {{ dnsmasq_logfile }} {
  su root root
  create 0640 root root
  rotate 4
  daily
  compress
  missingok
  notifempty
  dateext
  dateyesterday
 }
--- a/roles/mgrote.dnsmasq_adblocker/templates/resolv.conf.j2
+++ b/roles/mgrote.dnsmasq_adblocker/templates/resolv.conf.j2
@ -0,0 +1,4 @@
 {{ file_header | default () }}
 {% for item in dnsmasq_resolver %}
 nameserver {{ item }}
 {% endfor %}