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authorjaseg <code@jaseg.net>2020-12-29 13:08:13 +0100
committerjaseg <code@jaseg.net>2020-12-29 13:08:13 +0100
commitd1b0579a41c8215487a17317851f01756a1d938d (patch)
tree60d56112542ee5af43f73ad0e10dda9c0b3b1d09
parente346c558ea3d9761d7affe796664e1574f33773a (diff)
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Add dns, dyndns services
-rw-r--r--dns.yml91
-rw-r--r--dyndns.py149
-rw-r--r--dyndns_config.py.j214
-rw-r--r--nsd.conf372
-rw-r--r--setup_dyndns.yml80
-rw-r--r--uwsgi-dyndns.ini10
6 files changed, 716 insertions, 0 deletions
diff --git a/dns.yml b/dns.yml
new file mode 100644
index 0000000..0fd753a
--- /dev/null
+++ b/dns.yml
@@ -0,0 +1,91 @@
+- name: Setup subdomain A records pointing to wendelstein
+ inwx:
+ domain: "{{item.partition('.')[2]}}"
+ record: "{{item.partition('.')[0]}}"
+ type: A
+ value: "{{ hostvars['wendelstein']['ansible_default_ipv4']['address'] }}"
+ loop: "{{subdomains}}"
+
+- name: Setup dyndns A record
+ inwx:
+ domain: jaseg.de
+ record: ns
+ type: A
+ value: "{{ hostvars['wendelstein']['ansible_default_ipv4']['address'] }}"
+
+- name: Setup dyndns NS record
+ inwx:
+ domain: jaseg.de
+ record: dyn
+ type: NS
+ value: 'ns.jaseg.de'
+
+- name: Setup subdomain AAAA records pointing to wendelstein
+ inwx:
+ domain: "{{item.partition('.')[2]}}"
+ record: "{{item.partition('.')[0]}}"
+ type: AAAA
+ value: "{{ hostvars['wendelstein']['ansible_default_ipv6']['address'] }}"
+ loop: "{{subdomains}}"
+
+- name: Setup jaseg.net subdomain MX records pointing to fastmail
+ inwx:
+ domain: "{{item.partition('.')[2]}}"
+ record: "{{item.partition('.')[0]}}"
+ type: MX
+ priority: 10
+ value: in1-smtp.messagingengine.com
+ loop: "{{subdomains}}"
+
+- name: Setup jaseg.net subdomain MX records pointing to fastmail
+ inwx:
+ domain: "{{item.partition('.')[2]}}"
+ record: "{{item.partition('.')[0]}}"
+ type: MX
+ priority: 20
+ value: in2-smtp.messagingengine.com
+ loop: "{{subdomains}}"
+
+- name: Setup sendgrid gateway
+ inwx:
+ domain: jaseg.de
+ type: CNAME
+ record: "{{item.split(' ')[0]}}"
+ value: "{{item.split(' ')[1]}}"
+ loop:
+ - em6100.automation u14518136.wl137.sendgrid.net
+ - s1._domainkey.automation s1.domainkey.u14518136.wl137.sendgrid.net
+ - s2._domainkey.automation s2.domainkey.u14518136.wl137.sendgrid.net
+
+- name: Set fastmail DNS entry template
+ set_fact:
+ fastmail_dns_entries:
+ - {rtype: MX, record: ".", prio: 10, value: in1-smtp.messagingengine.com}
+ - {rtype: MX, record: ".", prio: 20, value: in2-smtp.messagingengine.com}
+ - {rtype: MX, record: "*", prio: 10, value: in1-smtp.messagingengine.com}
+ - {rtype: MX, record: "*", prio: 20, value: in2-smtp.messagingengine.com}
+ - {rtype: TXT, record: ".", value: "v=spf1 include:spf.messagingengine.com ?all"}
+ - {rtype: CNAME, record: mesmtp._domainkey, value: mesmtp.jaseg.de.dkim.fmhosted.com}
+ - {rtype: CNAME, record: fm1._domainkey, value: fm1.jaseg.de.dkim.fmhosted.com}
+ - {rtype: CNAME, record: fm2._domainkey, value: fm2.jaseg.de.dkim.fmhosted.com}
+ - {rtype: CNAME, record: fm3._domainkey, value: fm3.jaseg.de.dkim.fmhosted.com}
+ - {rtype: SRV, record: _submission._tcp, prio: 0, weight: 1, port: 587, value: smtp.fastmail.com}
+ - {rtype: SRV, record: _imap._tcp, prio: 0, weight: 0, port: 0, value: "."}
+ - {rtype: SRV, record: _imaps._tcp, prio: 0, weight: 1, port: 993, value: imap.fastmail.com}
+ - {rtype: SRV, record: _pop3._tcp, prio: 0, weight: 0, port: 0, value: "."}
+ - {rtype: SRV, record: _pop3s._tcp, prio: 10, weight: 1, port: 995, value: pop.fastmail.com}
+ - {rtype: SRV, record: _jmap._tcp, prio: 0, weight: 1, port: 443, value: jmap.fastmail.com}
+ - {rtype: SRV, record: _carddav._tcp, prio: 0, weight: 0, port: 0, value: "."}
+ - {rtype: SRV, record: _carddavs._tcp, prio: 0, weight: 1, port: 443, value: carddav.fastmail.com}
+
+- name: Setup fastmail DNS entries
+ inwx:
+ domain: "{{ item[1] }}"
+ type: "{{ item[0]['rtype'] }}"
+ record: "{{ item[0]['record'] | regex_replace('\\.*$', '') }}"
+ priority: "{{ item[0].get('prio') | int }}"
+ port: "{{ item[0].get('port') | int}}"
+ weight: "{{ item[0].get('weight') | int }}"
+ value: "{{ item[0]['value'] }}"
+ loop: "{{ fastmail_dns_entries | product(fastmail_domains) | list }}"
+
diff --git a/dyndns.py b/dyndns.py
new file mode 100644
index 0000000..2546dce
--- /dev/null
+++ b/dyndns.py
@@ -0,0 +1,149 @@
+#!/usr/bin/env python3
+
+import time
+from contextlib import contextmanager
+import re
+import os
+import os.path
+import random
+import string
+import subprocess
+import sqlite3
+import hmac
+from ipaddress import IPv4Address, IPv6Address
+
+from flask import Flask, request, abort
+import uwsgidecorators
+
+app = Flask(__name__)
+app.config.update(dict(
+ RECORD_EXPIRY_S = 86400,
+ NSD_CONTROL = 'nsd-control'
+ ))
+app.config.from_pyfile('config.py')
+
+
+ZONEFILE_TEMPLATE = '''\
+; #################################################### ;
+; THIS FILE IS AUTOMATICALLY GENERATED! DO NOT MODIFY! ;
+; #################################################### ;
+
+$ORIGIN {zone}.
+$TTL 1800
+@ IN SOA {ns}. {mail}. (
+ {serial} ; serial number
+ 60 ; refresh
+ 60 ; retry
+ {expire} ; expire
+ 60 ; ttl
+ )
+; Name servers
+ IN NS {ns}.
+
+; Additional A records from template
+; @ IN A 192.0.2.3
+; www IN A 192.0.2.3
+
+; Dynamically generated records
+{dynamic_records}
+'''
+
+db = sqlite3.connect(app.config['SQLITE_DB'], check_same_thread=False)
+with db as conn:
+ conn.execute('''CREATE TABLE IF NOT EXISTS zone_versions (date TEXT)''')
+ conn.execute('''CREATE TABLE IF NOT EXISTS records
+ (name TEXT PRIMARY KEY, ipv4 TEXT, ipv6 TEXT, last_update INTEGER)''')
+
+def purge_expired_records():
+ with db as conn:
+ conn.execute('DELETE FROM records WHERE last_update < ?',
+ (int(time.time()) - app.config['RECORD_EXPIRY_S'],))
+
+def update_record(record, ipv4=None, ipv6=None):
+ with db as conn:
+ old_v4, old_v6 = conn.execute('SELECT ipv4, ipv6 FROM records WHERE name=?', (record,)).fetchone() or (None, None)
+ conn.execute('INSERT OR REPLACE INTO records VALUES (?, ?, ?, ?)', (record, ipv4, ipv6, int(time.time())))
+ return ipv4 != old_v4 or ipv6 != old_v6
+
+@contextmanager
+def inplace_rewrite(filename, cleanup=True):
+ print('Writing', filename)
+ filename = os.path.abspath(filename)
+ if cleanup:
+ basename = os.path.basename(filename)
+ for entry in os.scandir(os.path.dirname(filename)):
+ if entry.name.startswith(basename) and re.match(r'\.tmp-[a-zA-Z0-9]{8}', entry.name[len(basename):]):
+ os.remove(entry.path)
+
+ tmp_fn = filename + f'.tmp-' + ''.join(random.choices(string.ascii_letters + string.digits, k=8))
+ with open(tmp_fn, 'w') as tmp_f:
+ yield tmp_f
+ tmp_f.flush()
+ os.fsync(tmp_f.fileno())
+ os.rename(tmp_fn, filename)
+
+def write_zonefile():
+ # Find the next free zonefile version number
+ with db as conn:
+ conn.execute('INSERT INTO zone_versions VALUES (DATE())')
+ date, version_num, = conn.execute('SELECT zone_versions.date, COUNT(*) FROM zone_versions WHERE zone_versions.date = DATE()').fetchone()
+ zone_version = f'{date.replace("-", "")}{version_num:02d}'
+
+ # Generate dynamic record block
+ with db as conn:
+ records = db.execute('SELECT name, "A", ipv4 FROM records UNION SELECT name, "AAAA", ipv6 FROM records')
+ dynamic_records = '\n'.join(f'{name:<20} IN {rtype:<4} {value}' for name, rtype, value in records if value is not None)
+
+ # Template zone file content
+ content = ZONEFILE_TEMPLATE.format(
+ zone = app.config['ZONE'],
+ ns = app.config['NAMESERVER'],
+ mail = app.config['NAMESERVER_MAIL'].replace('@', '.'),
+ serial = zone_version,
+ dynamic_records = dynamic_records,
+ expire = app.config['RECORD_EXPIRY_S']
+ )
+
+ with inplace_rewrite(app.config['ZONEFILE'], cleanup=True) as f:
+ f.write(content)
+
+def kick_nsd():
+ prog = app.config['NSD_CONTROL']
+ if isinstance(prog, str):
+ prog = [prog]
+ subprocess.run([*prog, 'reload', app.config['ZONE']], check=True)
+
+@app.before_first_request
+@uwsgidecorators.timer(300)
+def update_zonefile():
+ purge_expired_records()
+ write_zonefile()
+ kick_nsd()
+
+@app.route('/update', methods=['POST'])
+def route_update():
+ if request.authorization is None:
+ abort(403)
+
+ record = request.authorization['username']
+ record_config = app.config['DYNAMIC_RECORDS'].get(record)
+ if record_config is None:
+ abort(403)
+
+ *supported_formats, password = record_config
+ if not hmac.compare_digest(request.authorization['password'], password):
+ abort(403)
+
+ ipv4 = request.args.get('ipv4', '127.0.0.1')
+ ipv6 = request.args.get('ipv6', '::1')
+ ipv4 = str(IPv4Address(ipv4)) if 'v4' in supported_formats else None
+ ipv6 = str(IPv6Address(ipv6)) if 'v6' in supported_formats else None
+ if update_record(record, ipv4=ipv4, ipv6=ipv6):
+ update_zonefile()
+
+ return 'success'
+
+
+if __name__ == '__main__':
+ app.run()
+
diff --git a/dyndns_config.py.j2 b/dyndns_config.py.j2
new file mode 100644
index 0000000..3212a1e
--- /dev/null
+++ b/dyndns_config.py.j2
@@ -0,0 +1,14 @@
+
+SQLITE_DB = '{{dyndns_sqlite_dbfile}}'
+
+NAMESERVER = 'ns.jaseg.de'
+NAMESERVER_MAIL = 'dns@jaseg.de'
+ZONEFILE = 'dyn.jaseg.de.zone'
+ZONE = 'dyn.jaseg.de'
+NSD_CONTROL = 'sudo -u nsd nsd-control'.split()
+
+DYNAMIC_RECORDS = {
+ 'bigdata': ('v6', '{{ lookup('password', 'dyndns_secret_bigdata.txt length=32') }}'),
+ 'raspi': ('v6', '{{ lookup('password', 'dyndns_secret_raspi.txt length=32') }}'),
+}
+
diff --git a/nsd.conf b/nsd.conf
new file mode 100644
index 0000000..d4b577f
--- /dev/null
+++ b/nsd.conf
@@ -0,0 +1,372 @@
+#
+# nsd.conf -- the NSD(8) configuration file, nsd.conf(5).
+#
+# Copyright (c) 2001-2011, NLnet Labs. All rights reserved.
+#
+# See LICENSE for the license.
+#
+
+# This is a comment.
+# Sample configuration file
+# include: "file" # include that file's text over here. Globbed, "*.conf"
+
+# options for the nsd server
+server:
+ # Number of NSD servers to fork. Put the number of CPUs to use here.
+ server-count: 1
+
+ # uncomment to specify specific interfaces to bind (default are the
+ # wildcard interfaces 0.0.0.0 and ::0).
+ # For servers with multiple IP addresses, list them one by one,
+ # or the source address of replies could be wrong.
+ # Use ip-transparent to be able to list addresses that turn on later.
+ # ip-address: 1.2.3.4
+ # ip-address: 1.2.3.4@5678
+ # ip-address: 12fe::8ef0
+
+ # Allow binding to non local addresses. Default no.
+ # ip-transparent: no
+
+ # Allow binding to addresses that are down. Default no.
+ # ip-freebind: no
+
+ # use the reuseport socket option for performance. Default no.
+ reuseport: yes
+
+ # override maximum socket send buffer size. Default of 0 results in
+ # send buffer size being set to 1048576 (bytes).
+ # send-buffer-size: 1048576
+
+ # override maximum socket receive buffer size. Default of 0 results in
+ # receive buffer size being set to 1048576 (bytes).
+ # receive-buffer-size: 1048576
+
+ # enable debug mode, does not fork daemon process into the background.
+ # debug-mode: no
+
+ # listen on IPv4 connections
+ # do-ip4: yes
+
+ # listen on IPv6 connections
+ # do-ip6: yes
+
+ # port to answer queries on. default is 53.
+ # port: 53
+
+ # Verbosity level.
+ # verbosity: 0
+
+ # After binding socket, drop user privileges.
+ # can be a username, id or id.gid.
+ # username: nsd
+
+ # Run NSD in a chroot-jail.
+ # make sure to have pidfile and database reachable from there.
+ # by default, no chroot-jail is used.
+ # chroot: "/etc/nsd"
+
+ # The directory for zonefile: files. The daemon chdirs here.
+ zonesdir: "/etc/nsd"
+
+ # the list of dynamically added zones.
+ # zonelistfile: "/var/lib/nsd/zone.list"
+
+ # the database to use
+ # if set to "" then no disk-database is used, less memory usage.
+ database: ""
+
+ # log messages to file. Default to stderr and syslog (with
+ # facility LOG_DAEMON). stderr disappears when daemon goes to bg.
+ # logfile: "/var/log/nsd.log"
+
+ # File to store pid for nsd in.
+ # pidfile: "/run/nsd/nsd.pid"
+
+ # The file where secondary zone refresh and expire timeouts are kept.
+ # If you delete this file, all secondary zones are forced to be
+ # 'refreshing' (as if nsd got a notify). Set to "" to disable.
+ # xfrdfile: "/var/lib/nsd/ixfr.state"
+
+ # The directory where zone transfers are stored, in a subdir of it.
+ # xfrdir: "/tmp"
+
+ # don't answer VERSION.BIND and VERSION.SERVER CHAOS class queries
+ hide-version: yes
+
+ # don't answer HOSTNAME.BIND and ID.SERVER CHAOS class queries
+ hide-identity: yes
+
+ # version string the server responds with for chaos queries.
+ # default is 'NSD x.y.z' with the server's version number.
+ # version: "NSD"
+
+ # identify the server (CH TXT ID.SERVER entry).
+ # identity: "unidentified server"
+
+ # NSID identity (hex string, or "ascii_somestring"). default disabled.
+ # nsid: "aabbccdd"
+
+ # Maximum number of concurrent TCP connections per server.
+ # tcp-count: 100
+
+ # Accept (and immediately close) TCP connections after maximum number
+ # of connections is reached to prevent kernel connection queue from
+ # growing.
+ # tcp-reject-overflow: no
+
+ # Maximum number of queries served on a single TCP connection.
+ # By default 0, which means no maximum.
+ # tcp-query-count: 0
+
+ # Override the default (120 seconds) TCP timeout.
+ # tcp-timeout: 120
+
+ # Maximum segment size (MSS) of TCP socket on which the server
+ # responds to queries. Default is 0, system default MSS.
+ # tcp-mss: 0
+
+ # Maximum segment size (MSS) of TCP socket for outgoing AXFR request.
+ # Default is 0, system default MSS.
+ # outgoing-tcp-mss: 0
+
+ # Preferred EDNS buffer size for IPv4.
+ # ipv4-edns-size: 4096
+
+ # Preferred EDNS buffer size for IPv6.
+ # ipv6-edns-size: 4096
+
+ # statistics are produced every number of seconds. Prints to log.
+ # Default is 0, meaning no statistics are produced.
+ # statistics: 3600
+
+ # Number of seconds between reloads triggered by xfrd.
+ # xfrd-reload-timeout: 1
+
+ # log timestamp in ascii (y-m-d h:m:s.msec), yes is default.
+ # log-time-ascii: yes
+
+ # round robin rotation of records in the answer.
+ round-robin: yes
+
+ # minimal-responses only emits extra data for referrals.
+ minimal-responses: yes
+
+ # Do not return additional information if the apex zone of the
+ # additional information is configured but does not match the apex zone
+ # of the initial query.
+ # confine-to-zone: no
+
+ # refuse queries of type ANY. For stopping floods.
+ refuse-any: yes
+
+ # check mtime of all zone files on start and sighup
+ # zonefiles-check: yes
+
+ # write changed zonefiles to disk, every N seconds.
+ # default is 0(disabled) or 3600(if database is "").
+ # zonefiles-write: 3600
+
+ # RRLconfig
+ # Response Rate Limiting, size of the hashtable. Default 1000000.
+ # rrl-size: 1000000
+
+ # Response Rate Limiting, maximum QPS allowed (from one query source).
+ # If set to 0, ratelimiting is disabled. Also set
+ # rrl-whitelist-ratelimit to 0 to disable ratelimit processing.
+ # Default is on.
+ # rrl-ratelimit: 200
+
+ # Response Rate Limiting, number of packets to discard before
+ # sending a SLIP response (a truncated one, allowing an honest
+ # resolver to retry with TCP). Default is 2 (one half of the
+ # queries will receive a SLIP response, 0 disables SLIP (all
+ # packets are discarded), 1 means every request will get a
+ # SLIP response. When the ratelimit is hit the traffic is
+ # divided by the rrl-slip value.
+ # rrl-slip: 2
+
+ # Response Rate Limiting, IPv4 prefix length. Addresses are
+ # grouped by netblock.
+ # rrl-ipv4-prefix-length: 24
+
+ # Response Rate Limiting, IPv6 prefix length. Addresses are
+ # grouped by netblock.
+ # rrl-ipv6-prefix-length: 64
+
+ # Response Rate Limiting, maximum QPS allowed (from one query source)
+ # for whitelisted types. Default is on.
+ # rrl-whitelist-ratelimit: 2000
+ # RRLend
+
+ # Optional local server config
+ include: "/etc/nsd/server.d/*.conf"
+
+# Include optional local configs.
+include: "/etc/nsd/conf.d/*.conf"
+
+# Fedora: DNSTAP not yet enabled
+# dnstap:
+ # set this to yes and set one or more of dnstap-log-..-messages to yes.
+ # dnstap-enable: no
+ # dnstap-socket-path: "/var/run/dnstap.sock"
+ # dnstap-send-identity: no
+ # dnstap-send-version: no
+ # dnstap-identity: ""
+ # dnstap-version: ""
+ # dnstap-log-auth-query-messages: no
+ # dnstap-log-auth-response-messages: no
+
+ # Service clients over TLS (on the TCP sockets), with plain DNS inside
+ # the TLS stream. Give the certificate to use and private key.
+ # Default is "" (disabled). Requires restart to take effect.
+ # tls-service-key: "path/to/privatekeyfile.key"
+ # tls-service-pem: "path/to/publiccertfile.pem"
+ # tls-service-ocsp: "path/to/ocsp.pem"
+ # tls-port: 853
+
+# Remote control config section.
+remote-control:
+ # Enable remote control with nsd-control(8) here.
+ # set up the keys and certificates with nsd-control-setup.
+ control-enable: yes
+
+ # what interfaces are listened to for control, default is on localhost.
+ # with an absolute path, a unix local named pipe is used for control
+ # (and key and cert files are not needed, use directory permissions).
+ # control-interface: 127.0.0.1
+ # control-interface: ::1
+ control-interface: /run/nsd/nsd.ctl
+
+ # port number for remote control operations (uses TLS over TCP).
+ # control-port: 8952
+
+ # nsd server key file for remote control.
+ # server-key-file: "/etc/nsd/nsd_server.key"
+
+ # nsd server certificate file for remote control.
+ # server-cert-file: "/etc/nsd/nsd_server.pem"
+
+ # nsd-control key file.
+ # control-key-file: "/etc/nsd/nsd_control.key"
+
+ # nsd-control certificate file.
+ # control-cert-file: "/etc/nsd/nsd_control.pem"
+
+
+# Secret keys for TSIGs that secure zone transfers.
+# You could include: "secret.keys" and put the 'key:' statements in there,
+# and give that file special access control permissions.
+#
+# key:
+ # The key name is sent to the other party, it must be the same
+ #name: "keyname"
+ # algorithm hmac-md5, or sha1, sha256, sha224, sha384, sha512
+ #algorithm: sha256
+ # secret material, must be the same as the other party uses.
+ # base64 encoded random number.
+ # e.g. from dd if=/dev/random of=/dev/stdout count=1 bs=32 | base64
+ #secret: "K2tf3TRjvQkVCmJF3/Z9vA=="
+
+
+# Patterns have zone configuration and they are shared by one or more zones.
+#
+# pattern:
+ # name by which the pattern is referred to
+ #name: "myzones"
+ # the zonefile for the zones that use this pattern.
+ # if relative then from the zonesdir (inside the chroot).
+ # the name is processed: %s - zone name (as appears in zone:name).
+ # %1 - first character of zone name, %2 second, %3 third.
+ # %z - topleveldomain label of zone, %y, %x next labels in name.
+ # if label or character does not exist you get a dot '.'.
+ # for example "%s.zone" or "zones/%1/%2/%3/%s" or "secondary/%z/%s"
+ #zonefile: "%s.zone"
+
+ # If no master and slave access control elements are provided,
+ # this zone will not be served to/from other servers.
+
+ # A master zone needs notify: and provide-xfr: lists. A slave
+ # may also allow zone transfer (for debug or other secondaries).
+ # notify these slaves when the master zone changes, address TSIG|NOKEY
+ # IP can be ipv4 and ipv6, with @port for a nondefault port number.
+ #notify: 192.0.2.1 NOKEY
+ # allow these IPs and TSIG to transfer zones, addr TSIG|NOKEY|BLOCKED
+ # address range 192.0.2.0/24, 1.2.3.4&255.255.0.0, 3.0.2.20-3.0.2.40
+ #provide-xfr: 192.0.2.0/24 my_tsig_key_name
+ # set the number of retries for notify.
+ #notify-retry: 5
+
+ # uncomment to provide AXFR to all the world
+ # provide-xfr: 0.0.0.0/0 NOKEY
+ # provide-xfr: ::0/0 NOKEY
+
+ # A slave zone needs allow-notify: and request-xfr: lists.
+ #allow-notify: 2001:db8::0/64 my_tsig_key_name
+ # By default, a slave will request a zone transfer with IXFR/TCP.
+ # If you want to make use of IXFR/UDP use: UDP addr tsigkey
+ # for a master that only speaks AXFR (like NSD) use AXFR addr tsigkey
+ #request-xfr: 192.0.2.2 the_tsig_key_name
+ # Attention: You cannot use UDP and AXFR together. AXFR is always over
+ # TCP. If you use UDP, we higly recommend you to deploy TSIG.
+ # Allow AXFR fallback if the master does not support IXFR. Default
+ # is yes.
+ #allow-axfr-fallback: yes
+ # set local interface for sending zone transfer requests.
+ # default is let the OS choose.
+ #outgoing-interface: 10.0.0.10
+ # limit the refresh and retry interval in seconds.
+ #max-refresh-time: 2419200
+ #min-refresh-time: 0
+ #max-retry-time: 1209600
+ #min-retry-time: 0
+
+ # Slave server tries zone transfer to all masters and picks highest
+ # zone version available, for when masters have different versions.
+ #multi-master-check: no
+
+ # limit the zone transfer size (in bytes), stops very large transfers
+ # 0 is no limits enforced.
+ # size-limit-xfr: 0
+
+ # if compiled with --enable-zone-stats, give name of stat block for
+ # this zone (or group of zones). Output from nsd-control stats.
+ # zonestats: "%s"
+
+ # if you give another pattern name here, at this point the settings
+ # from that pattern are inserted into this one (as if it were a
+ # macro). The statement can be given in between other statements,
+ # because the order of access control elements can make a difference
+ # (which master to request from first, which slave to notify first).
+ #include-pattern: "common-masters"
+
+
+# Fixed zone entries. Here you can config zones that cannot be deleted.
+# Zones that are dynamically added and deleted are put in the zonelist file.
+#
+# zone:
+ # name: "example.com"
+ # you can give a pattern here, all the settings from that pattern
+ # are then inserted at this point
+ # include-pattern: "master"
+ # You can also specify (additional) options directly for this zone.
+ # zonefile: "example.com.zone"
+ # request-xfr: 192.0.2.1 example.com.key
+
+ # RRLconfig
+ # Response Rate Limiting, whitelist types
+ # rrl-whitelist: nxdomain
+ # rrl-whitelist: error
+ # rrl-whitelist: referral
+ # rrl-whitelist: any
+ # rrl-whitelist: rrsig
+ # rrl-whitelist: wildcard
+ # rrl-whitelist: nodata
+ # rrl-whitelist: dnskey
+ # rrl-whitelist: positive
+ # rrl-whitelist: all
+ # RRLend
+
+zone:
+ name: "dyn.jaseg.de"
+ zonefile: "/var/lib/dyndns/dyn.jaseg.de.zone"
+
diff --git a/setup_dyndns.yml b/setup_dyndns.yml
new file mode 100644
index 0000000..d9735c7
--- /dev/null
+++ b/setup_dyndns.yml
@@ -0,0 +1,80 @@
+---
+- name: Set local facts
+ set_fact:
+ dyndns_sqlite_dbfile: /var/lib/dyndns/db.sqlite3
+
+- name: Copy nsd config
+ copy:
+ src: nsd.conf
+ dest: /etc/nsd/nsd.conf
+ owner: root
+ group: root
+ mode: 0644
+
+- name: Enable and launch nsd systemd service
+ systemd:
+ name: nsd.service
+ enabled: yes
+ state: restarted
+
+- name: Create dyndns worker user and group
+ user:
+ name: uwsgi-dyndns
+ create_home: no
+ group: uwsgi
+ password: '!'
+ shell: /sbin/nologin
+ system: yes
+
+- name: Allow dyndns app to kick nsd
+ lineinfile:
+ path: /etc/sudoers
+ line: 'uwsgi-dyndns ALL=(nsd) NOPASSWD: /usr/sbin/nsd-control reload dyn.jaseg.de'
+
+- name: Create webapp dir
+ file:
+ path: /var/lib/dyndns
+ state: directory
+ owner: uwsgi-dyndns
+ group: nsd
+ mode: 0750
+
+- name: Copy webapp sources
+ copy:
+ src: dyndns.py
+ dest: /var/lib/dyndns/
+ owner: uwsgi-dyndns
+ group: uwsgi
+ mode: 0440
+
+- name: Template webapp config
+ template:
+ src: dyndns_config.py.j2
+ dest: /var/lib/dyndns/config.py
+ owner: uwsgi-dyndns
+ group: root
+ mode: 0660
+
+- name: Copy uwsgi config
+ copy:
+ src: uwsgi-dyndns.ini
+ dest: /etc/uwsgi.d/dyndns.ini
+ owner: uwsgi-dyndns
+ group: uwsgi
+ mode: 0440
+
+- name: Enable uwsgi systemd socket
+ systemd:
+ daemon-reload: yes
+ name: uwsgi-app@dyndns.socket
+ enabled: yes
+
+- name: Create sqlite db file
+ file:
+ path: "{{dyndns_sqlite_dbfile}}"
+ owner: uwsgi-dyndns
+ group: uwsgi
+ mode: 0660
+ state: touch
+
+
diff --git a/uwsgi-dyndns.ini b/uwsgi-dyndns.ini
new file mode 100644
index 0000000..b62e2af
--- /dev/null
+++ b/uwsgi-dyndns.ini
@@ -0,0 +1,10 @@
+[uwsgi]
+master = True
+cheap = True
+die-on-idle = False
+manage-script-name = True
+log-format = [pid: %(pid)|app: -|req: -/-] %(addr) (%(user)) {%(vars) vars in %(pktsize) bytes} [%(ctime)] %(method) [URI hidden] => generated %(rsize) bytes in %(msecs) msecs (%(proto) %(status)) %(headers) headers in %(hsize) bytes (%(switches) switches on core %(core))
+plugins = python3
+chdir = /var/lib/dyndns
+mount = /=dyndns:app
+