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authorGuilhem Moulin <guilhem@fripost.org>2018-12-03 03:45:59 +0100
committerGuilhem Moulin <guilhem@fripost.org>2018-12-03 03:46:28 +0100
commit07c1734d2c00ce0a52830533b19a02faed678364 (patch)
tree917dca1d878e96c1ef28fced837a9059ed7dd765 /roles/common
parent5ad9fc5e963b9a461f60799d7f185a9e2e13522f (diff)
Install unbound on metal hosts.
(A validating, recursive, caching DNS resolver.)
Diffstat (limited to 'roles/common')
-rw-r--r--roles/common/handlers/main.yml3
-rw-r--r--roles/common/tasks/main.yml5
-rw-r--r--roles/common/tasks/unbound.yml32
-rw-r--r--roles/common/templates/etc/unbound/unbound.conf.j232
4 files changed, 72 insertions, 0 deletions
diff --git a/roles/common/handlers/main.yml b/roles/common/handlers/main.yml
index 36f744e..dc6c457 100644
--- a/roles/common/handlers/main.yml
+++ b/roles/common/handlers/main.yml
@@ -11,6 +11,9 @@
- name: apt-get update
apt: update_cache=yes
+- name: Restart unbound
+ service: name=unbound state=restarted
+
- name: Update rkhunter's data file
command: /usr/bin/rkhunter --propupd
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index 7795da8..33a2c39 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -18,6 +18,11 @@
when: "'webmail' in group_names and 'LDAP-provider' not in group_names"
- import_tasks: auditd.yml
tags: auditd
+- import_tasks: unbound.yml
+ tags:
+ - unbound
+ - dns
+ when: "ansible_processor[1] is search('^(Genuine)?Intel.*') and not ansible_virtualization_role == 'guest'"
- import_tasks: rkhunter.yml
tags: rkhunter
- import_tasks: clamav.yml
diff --git a/roles/common/tasks/unbound.yml b/roles/common/tasks/unbound.yml
new file mode 100644
index 0000000..b4554ac
--- /dev/null
+++ b/roles/common/tasks/unbound.yml
@@ -0,0 +1,32 @@
+- name: Install unbound
+ apt: pkg={{ packages }}
+ vars:
+ packages:
+ - unbound
+ - dns-root-data
+
+- name: Copy unbound configuration
+ template: src=templates/etc/unbound/unbound.conf.j2
+ dest=/etc/unbound/unbound.conf
+ owner=root group=root
+ mode=0644
+ register: r
+ notify:
+ - Restart unbound
+
+- name: Start unbound
+ service: name=unbound state=started
+ when: not r.changed
+
+#- meta: flush_handlers
+
+- name: Use the local DNS server
+ lineinfile: dest=/etc/resolv.conf create=yes
+ regexp='^nameserver\s+127\.0\.0\.1\s*$'
+ line='nameserver 127.0.0.1'
+ insertbefore='^\s*#*?nameserver\s'
+ firstmatch=yes
+ tags:
+ - resolver
+ notify:
+ - Restart Postfix
diff --git a/roles/common/templates/etc/unbound/unbound.conf.j2 b/roles/common/templates/etc/unbound/unbound.conf.j2
new file mode 100644
index 0000000..64f32bf
--- /dev/null
+++ b/roles/common/templates/etc/unbound/unbound.conf.j2
@@ -0,0 +1,32 @@
+# 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.
+
+remote-control:
+ control-enable: no
+
+server:
+ interface: 127.0.0.1
+ root-hints: "/usr/share/dns/root.hints"
+ hide-identity: yes
+ hide-version: yes
+ prefetch: yes
+ qname-minimisation: yes
+ rrset-roundrobin: yes
+ use-caps-for-id: yes
+
+ # RFC 1918
+ private-address: 10.0.0.0/8
+ private-address: 172.16.0.0/12
+ private-address: 192.168.0.0/16
+ private-address: 169.254.0.0/16
+ private-address: fd00::/8
+ private-address: fe80::/10
+
+#
+# The following line includes additional configuration files from the
+# /etc/unbound/unbound.conf.d directory.
+include: "/etc/unbound/unbound.conf.d/*.conf"