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"""APM module.""" |
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import os |
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from functools import wraps |
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4
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5
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from elasticapm import Client |
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6
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from elasticapm.contrib.flask import ElasticAPM as FlaskAPM |
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7
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from elasticapm.traces import execution_context |
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8
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9
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from kytos.core.exceptions import KytosAPMInitException |
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11
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12
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def init_apm(apm_backend="es", **kwargs): |
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"""Init APM backend.""" |
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backends = {"es": ElasticAPM} |
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try: |
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return backends[apm_backend].init_client(**kwargs) |
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except KeyError: |
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client_names = ",".join(list(backends.keys())) |
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raise KytosAPMInitException( |
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f"APM backend '{apm_backend}' isn't supported." |
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f" Current supported APMs: {client_names}" |
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) |
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def begin_span(func, span_type="custom"): |
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"""APM transaction begin_span decorator.""" |
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@wraps(func) |
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def wrapper(*args, **kwds): |
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transaction = execution_context.get_transaction() |
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if transaction: |
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transaction.begin_span(func.__name__, span_type) |
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result = func(*args, **kwds) |
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if transaction: |
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transaction.end_span() |
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return result |
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return wrapper |
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40
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41
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class ElasticAPM: |
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"""ElasticAPM Client instance.""" |
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_flask_apm: FlaskAPM = None |
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_client: Client = None |
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47
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@classmethod |
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def get_client(cls, **kwargs) -> Client: |
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"""Get client.""" |
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if not cls._client: |
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return cls.init_client(**kwargs) |
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return cls._client |
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54
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@classmethod |
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def init_flask_app(cls, app) -> FlaskAPM: |
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"""Init Flask APM Client.""" |
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if not cls._flask_apm: |
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return None |
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cls._flask_apm.init_app(app) |
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return cls._flask_apm |
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62
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@classmethod |
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def init_client( |
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cls, |
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service_name=os.environ.get("ELASTIC_APM_SERVICE_NAME", "kytos"), |
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server_url=os.environ.get("ELASTIC_APM_URL", "http://localhost:8200"), |
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secret_token=os.environ.get("ELASTIC_APM_SECRET_TOKEN", |
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68
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"elasticapm_token"), |
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**kwargs, |
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) -> Client: |
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"""Init APM Client.""" |
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app = kwargs.pop("app", None) |
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if not cls._client: |
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cls._client = Client( |
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service_name=service_name, |
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server_url=server_url, |
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secret_token=secret_token, |
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78
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**kwargs, |
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79
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) |
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80
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if not cls._flask_apm: |
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cls._flask_apm = FlaskAPM(client=cls._client, app=app) |
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return cls._client |
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83
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kytos-ng /
kytos
