|
| 1 | +import argparse |
| 2 | +import json |
| 3 | +import pathlib |
| 4 | +import typing |
| 5 | + |
| 6 | +import boto3 |
| 7 | + |
| 8 | +if typing.TYPE_CHECKING: |
| 9 | + import mypy_boto3_ssm |
| 10 | + |
| 11 | +ssm_client: "mypy_boto3_ssm.SSMClient" = boto3.client("ssm") |
| 12 | + |
| 13 | + |
| 14 | +class ValueDiff(typing.NamedTuple): |
| 15 | + old: str | None |
| 16 | + new: str | None |
| 17 | + |
| 18 | + |
| 19 | +class ParameterDiffCollection(typing.NamedTuple): |
| 20 | + updated: dict[str, ValueDiff] |
| 21 | + created: dict[str, ValueDiff] |
| 22 | + deleted: dict[str, ValueDiff] |
| 23 | + |
| 24 | + |
| 25 | +def read_json_file(json_file: pathlib.Path, stage: str) -> dict[str, str]: |
| 26 | + if not (data_groups := json.loads(json_file.read_text())) or not isinstance(data_groups, dict): |
| 27 | + raise ValueError("JSON 파일이 잘못되었습니다.") |
| 28 | + |
| 29 | + if not (data := typing.cast(dict[str, typing.Any], data_groups.get(stage))): |
| 30 | + raise ValueError("JSON 파일에 해당 스테이지의 파라미터가 없습니다.") |
| 31 | + |
| 32 | + if not all(isinstance(k, str) and isinstance(v, (str, int, float, bool)) for k, v in data.items()): |
| 33 | + # object / array / null is not allowed here |
| 34 | + raise ValueError("JSON 파일의 파라미터가 잘못되었습니다.") |
| 35 | + |
| 36 | + return {k: str(v) for k, v in data.items()} |
| 37 | + |
| 38 | + |
| 39 | +def read_parameter_store(project_name: str, stage: str) -> dict[str, str]: |
| 40 | + parameters: dict[str, str] = {} |
| 41 | + next_token = "" # nosec: B105 |
| 42 | + while next_token is not None: |
| 43 | + result = ssm_client.get_parameters_by_path( |
| 44 | + Path=f"/{project_name}/{stage}", |
| 45 | + MaxResults=10, |
| 46 | + **({"NextToken": next_token} if next_token else {}), |
| 47 | + ) |
| 48 | + parameters.update({p["Name"].split("/")[-1]: p["Value"] for p in result["Parameters"]}) |
| 49 | + next_token = result.get("NextToken") |
| 50 | + return parameters |
| 51 | + |
| 52 | + |
| 53 | +def get_parameter_diff(old_parameters: dict[str, str], new_parameters: dict[str, str]) -> ParameterDiffCollection: |
| 54 | + created, updated, deleted = {}, {}, {} |
| 55 | + |
| 56 | + for fields in old_parameters.keys() | new_parameters.keys(): |
| 57 | + value = ValueDiff(old=old_parameters.get(fields), new=new_parameters.get(fields)) |
| 58 | + if value.old != value.new: |
| 59 | + if value.old is None: |
| 60 | + created[fields] = value |
| 61 | + elif value.new is None: |
| 62 | + deleted[fields] = value |
| 63 | + else: |
| 64 | + updated[fields] = value |
| 65 | + |
| 66 | + return ParameterDiffCollection(updated=updated, created=created, deleted=deleted) |
| 67 | + |
| 68 | + |
| 69 | +def update_parameter_store(project_name: str, stage: str, diff: ParameterDiffCollection) -> None: |
| 70 | + for field, values in {**diff.created, **diff.updated}.items(): |
| 71 | + ssm_client.put_parameter( |
| 72 | + Name=f"/{project_name}/{stage}/{field}", |
| 73 | + Value=values.new, |
| 74 | + Type="String", |
| 75 | + Overwrite=True, |
| 76 | + ) |
| 77 | + |
| 78 | + if diff.deleted: |
| 79 | + ssm_client.delete_parameters(Names=[f"/{project_name}/{stage}/{field}" for field in diff.deleted.keys()]) |
| 80 | + |
| 81 | + |
| 82 | +def main(project_name: str, stage: str, json_file: pathlib.Path) -> None: |
| 83 | + if not all([json_file.is_file(), project_name, stage]): |
| 84 | + raise ValueError("인자를 확인해주세요.") |
| 85 | + |
| 86 | + old_params = read_parameter_store(project_name, stage) |
| 87 | + new_params = read_json_file(json_file, stage) |
| 88 | + diff = get_parameter_diff(old_params, new_params) |
| 89 | + |
| 90 | + print(f"Updated: '{', '.join(diff.updated.keys())}'") |
| 91 | + print(f"Created: '{', '.join(diff.created.keys())}'") |
| 92 | + print(f"Deleted: '{', '.join(diff.deleted.keys())}'") |
| 93 | + update_parameter_store(project_name, stage, diff) |
| 94 | + |
| 95 | + |
| 96 | +if __name__ == "__main__": |
| 97 | + parser = argparse.ArgumentParser(description=__doc__) |
| 98 | + parser.add_argument("--project_name", type=str) |
| 99 | + parser.add_argument("--stage", type=str) |
| 100 | + parser.add_argument("--json_file", type=pathlib.Path) |
| 101 | + |
| 102 | + args = parser.parse_args() |
| 103 | + main(project_name=args.project_name, stage=args.stage, json_file=args.json_file) |
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