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55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
"""Prometheus monitoring queries."""
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# pylint: disable=too-few-public-methods
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import time
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import typing
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from typing import Optional
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PROMETHEUS_URL = "http://localhost:9090"
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class PrometheusInfo:
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""" """
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http_response: int
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output: Optional[typing.Dict] = None
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error: Optional[str] = None
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class PrometheusQueries:
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@staticmethod
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def _send_request(endpoint="/api/v1/query", params=None) -> PrometheusInfo:
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try:
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response = requests.get(f"{PROMETHEUS_URL}{endpoint}", params=params)
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return PrometheusInfo(
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http_response=response.status_code,
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output=(response.json() if response.status_code == 200 else None),
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)
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except requests.RequestException as error:
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return PrometheusInfo(
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http_response=500,
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error=str(error),
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)
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@staticmethod
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def cpu_usage() -> PrometheusInfo:
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"""Get CPU information"""
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start = int((datetime.now() - timedelta(minutes=20)).timestamp())
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end = int(datetime.now().timestamp())
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query = '100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100)'
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params = {"query": query, "start": start, "end": end, "step": 60}
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return self._send_request(params=params)
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@staticmethod
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def disk_usage() -> PrometheusInfo:
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"""Get disk usage information"""
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start = int((datetime.now() - timedelta(minutes=20)).timestamp())
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end = int(datetime.now().timestamp())
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query = '100 - (100 * ((node_filesystem_avail_bytes{mountpoint="/",fstype!="rootfs"} ) / (node_filesystem_size_bytes{mountpoint="/",fstype!="rootfs"}) ))'
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params = {"query": query, "start": start, "end": end, "step": 60}
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return self._send_request(params=params)
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