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@nZac
Created November 14, 2023 04:25
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Simple validation script for Route 53 record-set JSON outputs
"""Simple validation script for Route 53 record-set JSON outputs
Only validates some record types
aws route53 list-resource-record-sets --hosted-zone-id zone-id-old > old-dns.json
aws route53 list-resource-record-sets --hosted-zone-id zone-id-new > new-dns.json
"""
from __future__ import annotations
import typing as t
import json
from dataclasses import dataclass
@dataclass
class Record:
name: str
type_: str
ttl: str | None
records: list[dict[str, str]]
@classmethod
def from_json(cls, data: dict[str, t.Any]) -> Record:
if "AliasTarget" in data:
raise NotImplementedError("no alias target")
return cls(
name=data["Name"],
type_=data["Type"],
ttl=data.get("TTL", None),
records=data["ResourceRecords"],
)
@classmethod
def from_record_sets_json(cls, path: str) -> list[Record]:
with open(path) as fp:
data = json.load(fp)
records: list[Record] = []
for record in data["ResourceRecordSets"]:
try:
records.append(cls.from_json(record))
except NotImplementedError:
continue
return records
old = Record.from_record_sets_json("old-dns.json")
new = Record.from_record_sets_json("new-dns.json")
missing_in_old: list[Record] = []
for o in old:
if o not in new:
missing_in_old.append(o)
for x in missing_in_old:
print(x)
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