Install and configure nsd and unbound on emma.ccchb.de

Fixes #16

roles/nsd/handlers/main.yml

@@ -0,0 +1,14 @@
+---
+- name: Reload s6-rc
+  service:
+    name: s6-rc
+    state: reloaded
+
+- name: Reload nsd
+  command: s6-svc -h /run/service/nsd
+
+- name: Restart nsd
+  command: s6-svc -wR -T 5000 -ru /run/service/nsd
+
+- name: Restart nsd log
+  command: s6-svc -wR -T 5000 -ru /run/service/nsd-log

roles/nsd/tasks/main.yml

@@ -0,0 +1,84 @@
+---
+- name: Install nsd
+  package:
+    name: nsd
+    state: present
+
+- name: Add /var/log/nsd to fstab
+  mount:
+    path: /var/log/nsd
+    src: tmpfs
+    fstype: tmpfs
+    opts: 'rw,size={{ nsd_log_size }},mode={{ nsd_log_mode }},uid={{ nsd_log_uid }},gid={{ nsd_log_gid }},late'
+    state: mounted
+
+- name: Create nsd service directories
+  file:
+    path: '/etc/s6-rc/service/{{ item }}'
+    state: directory
+    owner: root
+    group: wheel
+    mode: 0755
+  with_items: '{{ nsd_service_dirs }}'
+  notify:
+    - Reload s6-rc
+    - Restart nsd log
+    - Restart nsd
+
+- name: Generate nsd service scripts
+  template:
+    dest: '/etc/s6-rc/service/{{ item }}'
+    src: '{{ item }}.j2'
+    mode: 0555
+    owner: root
+    group: wheel
+  with_items: '{{ nsd_service_scripts }}'
+  notify:
+    - Reload s6-rc
+    - Restart nsd log
+    - Restart nsd 
+
+- name: Generate nsd service configuration
+  copy:
+    dest: '/etc/s6-rc/service/{{ item.name }}'
+    content: '{{ item.content }}'
+    mode: 0444
+    owner: root
+    group: wheel
+  loop_control:
+    label: '{{ item.name }} = {{ item.content }}'
+  notify:
+    - Reload s6-rc
+    - Restart nsd log
+    - Restart nsd
+  with_items: '{{ nsd_service_config }}'
+
+- name: Configure nsd
+  template:
+    dest: /usr/local/etc/nsd/nsd.conf
+    src: nsd.conf.j2
+    mode: 0444
+    owner: root
+    group: wheel
+  notify:
+    - Reload nsd
+
+- name: Flush handlers
+  meta: flush_handlers
+
+- name: Start nsd
+  command: fdmove -c 2 1 s6-rc -u -v 2 -t 15000 change nsd
+  register: change
+  changed_when: change.stdout | length > 0
+
+- name: Enable nsd
+  lineinfile:
+    path: /etc/s6-rc/service/enabled/contents
+    regexp: "^nsd$"
+    line: nsd
+    state: present
+  notify:
+    - Reload s6-rc
+
+- name: Flush handlers (again)
+  meta: flush_handlers

roles/nsd/templates/nsd-log/finish.j2

@@ -0,0 +1,13 @@
+#!/usr/local/bin/execlineb -S2
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+fdmove -c 1 2
+ifelse { test "${1}" -eq 0 } {
+        echo "${NAME}-log: Stopped."
+}
+        echo "${NAME}-log: Failed with exit status (${1}, ${2})."

roles/nsd/templates/nsd-log/run.j2

@@ -0,0 +1,23 @@
+#!/usr/local/bin/execlineb
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+	importas -i -u NAME  NAME
+	importas -i -u USER  USER
+	importas -i -u GROUP GROUP
+	importas -i -u MODE  MODE
+	importas -i -u DIR   DIR
+}
+
+foreground { fdmove -c 1 2 echo "${NAME} log: Starting." }
+ 
+ifelse -n { install -d -o "${USER}" -g "${GROUP}" -m "${MODE}" "$DIR" } {
+ 	foreground { fdmove -c 1 2 echo "${NAME} log: Failed to create logging directory." }
+ 	false
+}
+ 
+fdmove -c 2 1
+ 
+s6-envuidgid $USER
+s6-log -d 3 T $DIR

roles/nsd/templates/nsd.conf.j2

@@ -0,0 +1,40 @@
+# {{ ansible_managed }}
+
+server:
+        ip-address:             127.0.0.1@5353
+        ip-address:             ::1@5353
+
+        # policy
+        statistics:             3600
+        round-robin:            yes
+        minimal-responses:      yes
+        hide-version:           yes
+        hide-identity:          no
+
+        # performance
+        server-count:           1
+        tcp-timeout:            12
+
+	# place nice with s6-rc
+	log-time-ascii:		no
+	debug-mode:		yes
+
+# Remote control config section. 
+remote-control:
+        control-enable:         yes
+        control-interface:      /var/run/nsd/control
+
+zone:
+        name: "."
+        request-xfr: 192.228.79.201       NOKEY # b.root-servers.net
+        request-xfr: 192.33.4.12          NOKEY # c.root-servers.net
+        request-xfr: 192.5.5.241          NOKEY # f.root-servers.net
+        request-xfr: 192.112.36.4         NOKEY # g.root-servers.net
+        request-xfr: 193.0.14.129         NOKEY # k.root-servers.net
+        request-xfr: 192.0.47.132         NOKEY # xfr.cjr.dns.icann.org
+        request-xfr: 192.0.32.132         NOKEY # xfr.lax.dns.icann.org
+        request-xfr: 2001:500:84::b       NOKEY # b.root-servers.net
+        request-xfr: 2001:500:2f::f       NOKEY # f.root-servers.net
+        request-xfr: 2001:7fd::1          NOKEY # k.root-servers.net
+        request-xfr: 2620:0:2830:202::132 NOKEY # xfr.cjr.dns.icann.org
+        request-xfr: 2620:0:2d0:202::132  NOKEY # xfr.lax.dns.icann.org

roles/nsd/templates/nsd/data/check.j2

@@ -0,0 +1,18 @@
+#!/usr/local/bin/execlineb -P
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+ifelse {
+	redirfd -w 1 /dev/null
+	fdmove -c 2 1
+	nsd-control status
+} {
+	foreground { fdmove -c 1 2 echo "${NAME}: Ready." }
+	true
+}
+	foreground { fdmove -c 1 2 echo "${NAME}: Poll." }
+	false

roles/nsd/templates/nsd/finish.j2

@@ -0,0 +1,13 @@
+#!/usr/local/bin/execlineb -S2
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+fdmove -c 1 2
+ifelse { test "${1}" -eq 0 } {
+        echo "${NAME}: Stopped."
+}
+        echo "${NAME}: Failed with exit status (${1}, ${2})."

roles/nsd/templates/nsd/run.j2

@@ -0,0 +1,13 @@
+#!/usr/local/bin/execlineb -P
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+	importas -i -u NAME NAME
+}
+
+foreground { fdmove -c 1 2 echo "${NAME}: Starting." }
+s6-notifyoncheck -d -w 100 -n 70
+
+fdmove -c 2 1
+nsd

roles/nsd/vars/main.yml

@@ -0,0 +1,50 @@
+---
+nsd_log_size: '32m'
+nsd_log_mode: '750'
+nsd_log_uid: '20000'
+nsd_log_gid: '20000'
+
+nsd_service_dirs:
+  - nsd
+  - nsd/env
+  - nsd/data
+  - nsd-log
+  - nsd-log/env
+
+nsd_service_scripts:
+  - nsd/run
+  - nsd/finish
+  - nsd/data/check
+  - nsd-log/run
+  - nsd-log/finish
+
+nsd_service_config:
+  - name: nsd/type
+    content: longrun
+  - name: nsd/producer-for
+    content: nsd-log
+  - name: nsd/notification-fd
+    content: 3
+  - name: nsd/env/NAME
+    content: nsd
+  - name: nsd/env/PATH
+    content: /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
+
+  - name: nsd-log/type
+    content: longrun
+  - name: nsd-log/notification-fd
+    content: 3
+  - name: nsd-log/consumer-for
+    content: nsd
+  - name: nsd-log/env/NAME
+    content: nsd
+  - name: nsd-log/env/PATH
+    content: /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
+  - name: nsd-log/env/MODE
+    content: '750'
+  - name: nsd-log/env/USER
+    content: s6-log
+  - name: nsd-log/env/GROUP
+    content: s6-log
+  - name: nsd-log/env/DIR
+    content: /var/log/nsd

roles/unbound/handlers/main.yml

@@ -0,0 +1,14 @@
+---
+- name: Reload s6-rc
+  service:
+    name: s6-rc
+    state: reloaded
+
+- name: Reload unbound
+  command: s6-svc -h /run/service/unbound
+
+- name: Restart unbound
+  command: s6-svc -wR -T 5000 -ru /run/service/unbound
+
+- name: Restart unbound log
+  command: s6-svc -wR -T 5000 -ru /run/service/unbound-log

roles/unbound/tasks/main.yml

@@ -0,0 +1,84 @@
+---
+- name: Install unbound
+  package:
+    name: unbound
+    state: present
+
+- name: Add /var/log/unbound to fstab
+  mount:
+    path: /var/log/unbound
+    src: tmpfs
+    fstype: tmpfs
+    opts: 'rw,size={{ unbound_log_size }},mode={{ unbound_log_mode }},uid={{ unbound_log_uid }},gid={{ unbound_log_gid }},late'
+    state: mounted
+
+- name: Create unbound service directories
+  file:
+    path: '/etc/s6-rc/service/{{ item }}'
+    state: directory
+    owner: root
+    group: wheel
+    mode: 0755
+  with_items: '{{ unbound_service_dirs }}'
+  notify:
+    - Reload s6-rc
+    - Restart unbound log
+    - Restart unbound
+
+- name: Generate unbound service scripts
+  template:
+    dest: '/etc/s6-rc/service/{{ item }}'
+    src: '{{ item }}.j2'
+    mode: 0555
+    owner: root
+    group: wheel
+  with_items: '{{ unbound_service_scripts }}'
+  notify:
+    - Reload s6-rc
+    - Restart unbound log
+    - Restart unbound 
+
+- name: Generate unbound service configuration
+  copy:
+    dest: '/etc/s6-rc/service/{{ item.name }}'
+    content: '{{ item.content }}'
+    mode: 0444
+    owner: root
+    group: wheel
+  loop_control:
+    label: '{{ item.name }} = {{ item.content }}'
+  notify:
+    - Reload s6-rc
+    - Restart unbound log
+    - Restart unbound
+  with_items: '{{ unbound_service_config }}'
+
+- name: Configure unbound
+  template:
+    dest: /usr/local/etc/unbound/unbound.conf
+    src: unbound.conf.j2
+    mode: 0444
+    owner: root
+    group: wheel
+  notify:
+    - Reload unbound
+
+- name: Flush handlers
+  meta: flush_handlers
+
+- name: Start unbound
+  command: fdmove -c 2 1 s6-rc -u -v 2 -t 15000 change unbound
+  register: change
+  changed_when: change.stdout | length > 0
+
+- name: Enable unbound
+  lineinfile:
+    path: /etc/s6-rc/service/enabled/contents
+    regexp: "^unbound$"
+    line: unbound
+    state: present
+  notify:
+    - Reload s6-rc
+
+- name: Flush handlers (again)
+  meta: flush_handlers

roles/unbound/templates/unbound-log/finish.j2

@@ -0,0 +1,13 @@
+#!/usr/local/bin/execlineb -S2
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+fdmove -c 1 2
+ifelse { test "${1}" -eq 0 } {
+        echo "${NAME}-log: Stopped."
+}
+        echo "${NAME}-log: Failed with exit status (${1}, ${2})."

roles/unbound/templates/unbound-log/run.j2

@@ -0,0 +1,23 @@
+#!/usr/local/bin/execlineb
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+	importas -i -u NAME  NAME
+	importas -i -u USER  USER
+	importas -i -u GROUP GROUP
+	importas -i -u MODE  MODE
+	importas -i -u DIR   DIR
+}
+
+foreground { fdmove -c 1 2 echo "${NAME} log: Starting." }
+ 
+ifelse -n { install -d -o "${USER}" -g "${GROUP}" -m "${MODE}" "$DIR" } {
+ 	foreground { fdmove -c 1 2 echo "${NAME} log: Failed to create logging directory." }
+ 	false
+}
+ 
+fdmove -c 2 1
+ 
+s6-envuidgid $USER
+s6-log -d 3 T $DIR

roles/unbound/templates/unbound.conf.j2

@@ -0,0 +1,74 @@
+# {{ ansible_managed }}
+#
+server:
+	num-threads: 1
+	interface: 127.0.0.1
+	interface: ::1
+
+	outgoing-num-tcp: 128
+	incoming-num-tcp: 128
+	so-rcvbuf: 1m
+	so-sndbuf: 1m
+
+	do-ip4: yes
+	do-ip6: yes
+	do-udp: yes
+	do-tcp: yes
+
+	access-control: ::0/0 refuse
+	access-control: 0.0.0.0/0 refuse
+	access-control: ::1 allow
+	access-control: 127.0.0.0/8 allow
+	access-control: 2a01:4f8:150:926f::0/64 allow
+	access-control: 10.0.0.0/24 allow
+
+	chroot: "/usr/local/etc/unbound"
+
+	username: "unbound"
+	directory: "/usr/local/etc/unbound"
+
+	use-systemd: no
+	do-daemonize: no
+	use-syslog: no
+	logfile: ""
+
+	pidfile: "/usr/local/etc/unbound/unbound.pid"
+
+	hide-identity: yes
+	hide-version: yes
+	hide-trustanchor: yes
+	harden-dnssec-stripped: yes
+	harden-below-nxdomain: yes
+	qname-minimisation: yes
+	qname-minimisation-strict: yes
+	use-caps-for-id: yes
+
+	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
+	private-address: ::ffff:0:0/96
+
+	do-not-query-localhost: no 
+
+	prefetch: yes
+	prefetch-key: yes
+	deny-any: no
+	rrset-roundrobin: yes
+	minimal-responses: yes
+	disable-dnssec-lame-check: no
+
+	module-config: "validator iterator"
+
+	local-zone: "10.in-addr.arpa" nodefault
+
+remote-control:
+	control-enable: yes
+	control-interface: /usr/local/etc/unbound/control
+
+stub-zone:
+	name: "."
+	stub-prime: no
+	stub-addr: 127.0.0.1@5353

roles/unbound/templates/unbound/data/check.j2

@@ -0,0 +1,18 @@
+#!/usr/local/bin/execlineb -P
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+ifelse {
+	redirfd -w 1 /dev/null
+	fdmove -c 2 1
+	unbound-control status
+} {
+	foreground { fdmove -c 1 2 echo "${NAME}: Ready." }
+	true
+}
+	foreground { fdmove -c 1 2 echo "${NAME}: Poll." }
+	false

roles/unbound/templates/unbound/finish.j2

@@ -0,0 +1,13 @@
+#!/usr/local/bin/execlineb -S2
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+        importas -i -u NAME NAME
+}
+
+fdmove -c 1 2
+ifelse { test "${1}" -eq 0 } {
+        echo "${NAME}: Stopped."
+}
+        echo "${NAME}: Failed with exit status (${1}, ${2})."

roles/unbound/templates/unbound/run.j2

@@ -0,0 +1,13 @@
+#!/usr/local/bin/execlineb -P
+# {{ ansible_managed }}
+
+s6-envdir ./env
+multisubstitute {
+	importas -i -u NAME NAME
+}
+
+foreground { fdmove -c 1 2 echo "${NAME}: Starting." }
+s6-notifyoncheck -d -w 100 -n 70
+
+fdmove -c 2 1
+unbound

roles/unbound/vars/main.yml

@@ -0,0 +1,52 @@
+---
+unbound_log_size: '32m'
+unbound_log_mode: '750'
+unbound_log_uid: '20000'
+unbound_log_gid: '20000'
+
+unbound_service_dirs:
+  - unbound
+  - unbound/env
+  - unbound/data
+  - unbound-log
+  - unbound-log/env
+
+unbound_service_scripts:
+  - unbound/run
+  - unbound/finish
+  - unbound/data/check
+  - unbound-log/run
+  - unbound-log/finish
+
+unbound_service_config:
+  - name: unbound/type
+    content: longrun
+  - name: unbound/producer-for
+    content: unbound-log
+  - name: unbound/notification-fd
+    content: 3
+  - name: unbound/env/NAME
+    content: unbound
+  - name: unbound/env/PATH
+    content: /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
+  - name: unbound/dependencies
+    content: nsd
+
+  - name: unbound-log/type
+    content: longrun
+  - name: unbound-log/notification-fd
+    content: 3
+  - name: unbound-log/consumer-for
+    content: unbound
+  - name: unbound-log/env/NAME
+    content: unbound
+  - name: unbound-log/env/PATH
+    content: /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin
+  - name: unbound-log/env/MODE
+    content: '750'
+  - name: unbound-log/env/USER
+    content: s6-log
+  - name: unbound-log/env/GROUP
+    content: s6-log
+  - name: unbound-log/env/DIR
+    content: /var/log/unbound

site.yml

@@ -1,5 +1,7 @@
 ---
 - import_playbook: s6.yml
+- import_playbook: dns.yml
+- import_playbook: ntp.yml
 - import_playbook: haproxy.yml
 - import_playbook: bhyve.yml
 - import_playbook: mail.yml