Merge branch 'dns' into 'aurore-dev'

Déploiement basique de serveur DNS récursif

See merge request aurore/ansible!45

group_vars/edc/ldap_local_replica.yml

@@ -0,0 +1,4 @@
+---
+ldap_local_replica_uri:
+  - 'ldap://ldap-replica-edc.adm.auro.re'
+

hosts

@@ -149,15 +149,15 @@ edc_pve
 gs_pve
 
 [dhcp]
-dhcp-fleming.adm.auro.re
+#dhcp-fleming.adm.auro.re
 dhcp-fleming-backup.adm.auro.re
 #dhcp-pacaterie.adm.auro.re
 #dhcp-pacaterie-backup.adm.auro.re
 #dhcp-edc.adm.auro.re
 #dhcp-gs.adm.auro.re
 
-[dns]
+[recursive_dns]
-#dns-fleming.adm.auro.re
+dns-fleming.adm.auro.re
 #dns-fleming-backup.adm.auro.re
 #dns-pacaterie.adm.auro.re
 #dns-pacaterie-backup.adm.auro.re

network.yml

@@ -1,20 +1,4 @@
 ---
-## Deploy DHCP
-#- hosts: dhcp
-#  vars:
-#    service_repo: https://gitlab.federez.net/re2o/dhcp.git
-#    service_name: dhcp
-#    service_version: master
-#    service_config:
-#      hostname: re2o-server.adm.auro.re
-#      username: service-user
-#      password: "{{ vault_serviceuser_passwd }}"
-#    dhcp:
-#      authoritative: true
-#  roles:
-#    - re2o-service
-#    - isc-dhcp-server
-    
 # Set up DHCP servers.
 - hosts: dhcp
   vars:
@@ -29,18 +13,29 @@
     - re2o-service
     - isc-dhcp-server
 
-# Deploy DNS
+
-- hosts: dns
+
+# Deploy unbound DNS server (recursive).
+- hosts: recursive_dns
   vars:
-    service_repo: https://gitlab.crans.org/nounous/re2o-dns.git
+    - dns_host_suffix: 253
-    service_name: dns
-    service_version: crans
-    service_config:
-      hostname: re2o-server.adm.auro.re
-      username: service-user
-      password: "{{ vault_serviceuser_passwd }}"
   roles:
-    - re2o-service
+    - unbound
+
+
+# WIP: Deploy authoritative DNS servers
+# - hosts: authoritative_dns
+#   vars:
+#     service_repo: https://gitlab.crans.org/nounous/re2o-dns.git
+#     service_name: dns
+#     service_version: crans
+#     service_config:
+#       hostname: re2o-server.adm.auro.re
+#       username: service-user
+#       password: "{{ vault_serviceuser_passwd }}"
+#   roles:
+#     - re2o-service
+
 
 # Deploy Unifi Controller
 #- hosts: unifi-fleming.adm.auro.re,unifi-pacaterie.adm.auro.re

roles/unbound/tasks/main.yml

@@ -0,0 +1,25 @@
+---
+
+- name: install unbound
+  apt:
+    update_cache: true
+    name: unbound
+    state: present
+
+- name: setup main unbound config file
+  template:
+    src: unbound.conf.j2
+    dest: /etc/unbound/unbound.conf
+    mode: 0644
+
+- name: setup recursive DNS server config
+  template:
+    src: recursive.conf.j2
+    dest: /etc/unbound/unbound.conf.d/recursive.conf
+    mode: 0644
+
+
+- name: restart unbound after editing config
+  systemd:
+    state: restarted
+    name: unbound

roles/unbound/templates/recursive.conf.j2

@@ -0,0 +1,23 @@
+server:
+    # Timestamps use UTC ASCII instead of UNIX epoch.
+    log-time-ascii: yes
+
+    do-ip4: yes
+    # FIXME: IPv6 deployment... someday...
+    do-ip6: no
+
+    # IP addresses on which to listen.
+    interface: 10.{{ subnet_ids.ap }}.0.{{ dns_host_suffix }}
+    interface: 10.{{ subnet_ids.users_wired }}.0.{{ dns_host_suffix }}
+    interface: 10.{{ subnet_ids.users_wifi }}.0.{{ dns_host_suffix }}
+
+ 
+    # By default, anything other than localhost is refused.
+    # Whitelist some subnets:
+    access-control: 10.{{ subnet_ids.ap }}.0.0/16 allow
+    access-control: 10.{{ subnet_ids.users_wired }}.0.0/16 allow
+    access-control: 10.{{ subnet_ids.users_wifi }}.0.0/16 allow
+
+    num-threads: {{ ansible_processor_vcpus }}
+
+    private-address: 10.0.0.0/8

roles/unbound/templates/unbound.conf.j2

@@ -0,0 +1,10 @@
+# Unbound configuration file for Debian.
+#
+# See the unbound.conf(5) man page.
+#
+# See /usr/share/doc/unbound/examples/unbound.conf for a commented
+# reference config file.
+#
+# The following line includes additional configuration files from the
+# /etc/unbound/unbound.conf.d directory.
+include: "/etc/unbound/unbound.conf.d/*.conf"