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52 lines
2 KiB
Python
52 lines
2 KiB
Python
import logging
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import re
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from alerta.exceptions import RejectException
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from alerta.plugins import PluginBase
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LOG = logging.getLogger('alerta.plugins')
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class RejectPolicy(PluginBase):
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"""
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Default reject policy will block alerts that do not have the following
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required attributes:
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1) environment - must match an allowed environment. By default it should
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be either "Production" or "Development". Config setting is `ALLOWED_ENVIRONMENTS`.
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2) service - must supply a value for service. Any value is acceptable.
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"""
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def pre_receive(self, alert, **kwargs):
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ORIGIN_BLACKLIST = self.get_config('ORIGIN_BLACKLIST', default=[], type=list, **kwargs)
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ALLOWED_ENVIRONMENTS = self.get_config('ALLOWED_ENVIRONMENTS', default=[], type=list, **kwargs)
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ORIGIN_BLACKLIST_REGEX = [re.compile(x) for x in ORIGIN_BLACKLIST]
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ALLOWED_ENVIRONMENT_REGEX = [re.compile(x) for x in ALLOWED_ENVIRONMENTS]
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if any(regex.match(alert.origin) for regex in ORIGIN_BLACKLIST_REGEX):
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LOG.warning("[POLICY] Alert origin '%s' has been blacklisted", alert.origin)
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raise RejectException(f"[POLICY] Alert origin '{alert.origin}' has been blacklisted")
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if not any(regex.fullmatch(alert.environment) for regex in ALLOWED_ENVIRONMENT_REGEX):
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LOG.warning('[POLICY] Alert environment does not match one of %s', ', '.join(ALLOWED_ENVIRONMENTS))
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raise RejectException('[POLICY] Alert environment does not match one of %s' %
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', '.join(ALLOWED_ENVIRONMENTS))
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if not alert.service:
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LOG.warning('[POLICY] Alert must define a service')
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raise RejectException('[POLICY] Alert must define a service')
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return alert
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def post_receive(self, alert, **kwargs):
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return
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def status_change(self, alert, status, text, **kwargs):
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return
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def take_action(self, alert, action, text, **kwargs):
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raise NotImplementedError
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def delete(self, alert, **kwargs) -> bool:
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raise NotImplementedError
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