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from __future__ import print_function
from os import environ
import logging
import sysconfig
import requests
from requests.exceptions import HTTPError
#LABELS = [ 'irate(http_requests_total{code="200"}[1m])', 'collectd_cpu_percent{job="collectd", exported_instance="an11-31"}[1m]' ]
#LABELS = ['irate(collectd_cpufreq{exported_instance="otconap7",cpufreq="1"}[2m])', 'go_info']
API_VERSION = '/api/v1/query'
LIST_OF_ENV_VARIABLES = ["PROMETHEUS_SERVER_URL"]
MAP_ENV_VARIABLES = dict()
#MAP_ENV_VARIABLES['PROMETHEUS_SERVER_URL']='http://172.25.103.1:30090' #to be deleted
LOG = logging.getLogger(__name__)
def set_log_config():
logging.basicConfig(format='%(asctime)s ::%(filename)s :: %(funcName)s :: %(levelname)s :: %(message)s',
datefmt='%m-%d-%Y %I:%M:%S%p',
level=logging.DEBUG,
filename='promql_api.log',
filemode='w')
LOG.info("Set the log configs.")
def load_and_validate_env_vars(list_of_env_vars):
LOG.info("Loading the env variables ...")
for env_var in list_of_env_vars:
if env_var in environ:
LOG.info("Found env variable: {} ".format(env_var.upper()))
MAP_ENV_VARIABLES[env_var.upper()] = environ.get(env_var)
else:
#MAP_ENV_VARIABLES['PROMETHEUS_SERVER_URL']='http://172.25.103.1:30090' # to be deleted
LOG.error("Env var: {} not found ! ".format(env_var.upper()))
raise KeyError("Env variable: {} not found ! ".format(env_var.upper()))
def query_m3db(LABELS):
"""
Input parameters:
LABELS : a list of the LABELS
Return:
returns a list of result sets of different labels
"""
LOG.info("Forming the get request ...")
list_of_substrings = []
params_map = {}
list_of_result_sets = []
list_of_substrings.append(MAP_ENV_VARIABLES['PROMETHEUS_SERVER_URL'])
list_of_substrings.append(API_VERSION)
url = ''.join(list_of_substrings)
for each_label in LABELS:
params_map['query'] = each_label
try:
LOG.info('API request::: URL: {} '.format(url))
LOG.info('API request::: params: {} '.format(params_map))
response = requests.get(url, params=params_map)
response.raise_for_status()
except HTTPError as http_err:
print(f'HTTP error occurred: {http_err}')
return None
except Exception as err:
print(f'Other error occurred: {err}')
return None
else:
results = response.json()['data']['result']
LOG.info('::::::::::RESULTS::::::::::::: {}'.format(each_label))
for each_result in results:
LOG.info(each_result)
list_of_result_sets.append(results)
return list_of_result_sets
# def main():
# set_log_config()
# load_and_validate_env_vars(LIST_OF_ENV_VARIABLES)
# query_m3db(LABELS)
# if __name__ == "__main__":
# main()
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