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Code Issues Releases Wiki Activity

Update serial for replacement, allow caching of zones

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Signed-off-by: Knut Ahlers <knut@ahlers.me>
This commit is contained in:
Knut Ahlers 2018-02-05 08:37:55 +01:00
parent 75386be0ba
commit 04c661035d
Signed by: luzifer
GPG key ID: DC2729FDD34BE99E
2 changed files with 17 additions and 6 deletions
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2
Dockerfile
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@ -24,5 +24,7 @@ WORKDIR /src
EXPOSE 53/udp 53 EXPOSE 53/udp 53
VOLUME ["/src/zones"]
ENTRYPOINT ["/usr/local/bin/coredns"] ENTRYPOINT ["/usr/local/bin/coredns"]
CMD ["--"] CMD ["--"]

21
generateZonefiles.py
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@ -6,6 +6,7 @@ import hashlib
import os import os
import os.path import os.path
import sys import sys
import time
# Third-party imports # Third-party imports
import dns.resolver import dns.resolver
@ -13,7 +14,6 @@ import dns.rdatatype
import jinja2 import jinja2
import yaml import yaml
BLOCKSIZE = 65536
DEFAULT_TTL = 3600 DEFAULT_TTL = 3600
@ -42,14 +42,21 @@ def hash_file(filename):
return "" return ""
hasher = hashlib.sha1() hasher = hashlib.sha1()
with open(filename, 'rb') as afile: with open(filename, 'r') as afile:
buf = afile.read(BLOCKSIZE) lines = afile.readlines()
while len(buf) > 0:
hasher.update(buf) lines = map(replace_soa_line, lines)
buf = afile.read(BLOCKSIZE)
hasher.update(''.join(lines).encode('utf-8'))
return hasher.hexdigest() return hasher.hexdigest()
def replace_soa_line(line):
if 'SOA' in line:
return '; SOA line replaced'
return line
def resolve_alias(entry): def resolve_alias(entry):
result = [] result = []
@ -96,6 +103,8 @@ def sanitize(entry):
def write_zone(zone, ttl, soa, nameserver, mailserver, entries): def write_zone(zone, ttl, soa, nameserver, mailserver, entries):
soa['serial'] = int(time.time()) - 946681200 # 2000-01-01
tpl = jinja2.Template(open("zone_template.j2").read()) tpl = jinja2.Template(open("zone_template.j2").read())
zone_content = tpl.render({ zone_content = tpl.render({
"zone": zone, "zone": zone,