erwin/docker-nsupdate-ddns
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Fixed config loading, added Dockerfile

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This commit is contained in:
Merijntje Tak
2022-07-10 16:34:53 +02:00
parent 6e8bf94005
commit 5909c88c08
9 changed files with 128 additions and 42 deletions
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11
lib/container.py
View File

@@ -11,8 +11,8 @@ def get_container_name(container):
"""
x = container.attrs['Name'][1:]
if config['hostname_label'] in container.attrs['Config']['Labels']:
x = container.attrs['Config']['Labels'][config['hostname_label']]
if config['HOSTNAME_LABEL'] in container.attrs['Config']['Labels']:
x = container.attrs['Config']['Labels'][config['HOSTNAME_LABEL']]
x = x.replace("_", "-") # Be compliant with RFC1035
return x
@@ -28,11 +28,12 @@ def get_container_ip(container):
x = container.attrs['NetworkSettings']['IPAddress']
if next(iter(container.attrs['NetworkSettings']['Networks'])):
network_name = next(iter(container.attrs['NetworkSettings']['Networks']))
network_name = next(
iter(container.attrs['NetworkSettings']['Networks']))
x = container.attrs['NetworkSettings']['Networks'][network_name]['IPAddress']
if config['default_network'] in container.attrs['NetworkSettings']['Networks']:
x = container.attrs['NetworkSettings']['Networks'][config['default_network']]
if config['DEFAULT_NETWORK'] in container.attrs['NetworkSettings']['Networks']:
x = container.attrs['NetworkSettings']['Networks'][config['DEFAULT_NETWORK']]
return x

14
lib/nsupdate.py
View File

@@ -7,7 +7,8 @@ config = {}
def add_records(records):
keyring = dns.tsigkeyring.from_text({config['tsig_name']: config['tsig_key']})
keyring = dns.tsigkeyring.from_text(
{config['TSIG_NAME']: config['TSIG_KEY']})
for hostname, ip in records.items():
print("Adding record for " + hostname + "(" + ip + ")")
@@ -18,18 +19,19 @@ def add_records(records):
if isinstance(address, ipaddress.IPv6Address):
rrtype = "AAAA"
update = dns.update.Update(config['domain'], keyring=keyring)
update = dns.update.Update(config['DOMAIN'], keyring=keyring)
update.add(hostname, 60, rrtype, ip)
dns.query.tcp(update, config['nameserver'], timeout=2)
dns.query.tcp(update, config['NAMESERVER'], timeout=2)
def delete_records(records):
keyring = dns.tsigkeyring.from_text({config['tsig_name']: config['tsig_key']})
keyring = dns.tsigkeyring.from_text(
{config['TSIG_NAME']: config['TSIG_KEY']})
for hostname, ip in records.items():
print("Deleting record for " + hostname + "(" + ip + ")")
update = dns.update.Update(config['domain'], keyring=keyring)
update = dns.update.Update(config['DOMAIN'], keyring=keyring)
update.delete(hostname)
dns.query.tcp(update, config['nameserver'], timeout=2)
dns.query.tcp(update, config['NAMESERVER'], timeout=2)
def init(_config):