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container.training/prepare-vms/map-dns.py
Jérôme Petazzoni f4345d3241 🗺️ Update DNS mapping script
2021-10-10 15:24:06 +02:00

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Python
Executable File

#!/usr/bin/env python
"""
There are two ways to use this script:
1. Pass a file name and a tag name as a single argument.
It will load a list of domains from the given file (one per line),
and assign them to the clusters corresponding to that tag.
There should be more domains than clusters.
Example: ./map-dns.py domains.txt 2020-08-15-jp
2. Pass a domain as the 1st argument, and IP addresses then.
It will configure the domain with the listed IP addresses.
Example: ./map-dns.py open-duck.site 1.2.3.4 2.3.4.5 3.4.5.6
In both cases, the domains should be configured to use GANDI LiveDNS.
"""
import os
import requests
import sys
import yaml
# This can be tweaked if necessary.
config_file = os.path.join(
os.environ["HOME"], ".config/gandi/config.yaml")
apiurl = "https://dns.api.gandi.net/api/v5/domains"
apikey = yaml.safe_load(open(config_file))["apirest"]["key"]
# Figure out if we're called for a bunch of domains, or just one.
domain_or_domain_file = sys.argv[1]
if os.path.isfile(domain_or_domain_file):
domains = open(domain_or_domain_file).read().split()
domains = [ d for d in domains if not d.startswith('#') ]
ips_file_or_tag = sys.argv[2]
if os.path.isfile(ips_file_or_tag):
lines = open(ips_file_or_tag).read().split('\n')
clusters = [line.split() for line in lines]
else:
ips = open(f"tags/{ips_file_or_tag}/ips.txt").read().split()
settings_file = f"tags/{tag}/settings.yaml"
clustersize = yaml.safe_load(open(settings_file))["clustersize"]
clusters = []
while ips:
clusters.append(ips[:clustersize])
ips = ips[clustersize:]
else:
domains = [domain_or_domain_file]
clusters = [sys.argv[2:]]
# Now, do the work.
while domains and clusters:
domain = domains.pop(0)
cluster = clusters.pop(0)
print(f"{domain} => {cluster}")
zone = ""
node = 0
for ip in cluster:
node += 1
zone += f"@ 300 IN A {ip}\n"
zone += f"* 300 IN A {ip}\n"
zone += f"node{node} 300 IN A {ip}\n"
r = requests.put(
f"{apiurl}/{domain}/records",
headers={"x-api-key": apikey},
data=zone)
print(r.text)
#r = requests.get(
# f"{apiurl}/{domain}/records",
# headers={"x-api-key": apikey},
# )
if domains:
print(f"Good, we have {len(domains)} domains left.")
if clusters:
print(f"Crap, we have {len(clusters)} clusters left.")