1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
from __future__ import print_function
from os import environ
import logging
import requests
from requests.exceptions import HTTPError
API_VERSION = '/api/v1/query'
LIST_OF_ENV_VARIABLES = ["DATA_ENDPOINT"]
MAP_ENV_VARIABLES = dict()
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['DATA_ENDPOINT']='http://127.0.0.1:30090' # 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(LABELS):
"""
Input parameters:
LABELS : a list of the LABELS like ['irate(collectd_cpufreq{exported_instance="otconap7",cpufreq="1"}[2m])']
Return:
returns a list of result sets of different labels.
SAMPLE O/P:
[{'metric': {'cpufreq': '1',
'endpoint': 'collectd-prometheus',
'exported_instance': 'otconap7',
'instance': '172.25.103.1:9103',
'job': 'collectd',
'namespace': 'edge1',
'pod': 'plundering-liger-collectd-wz7xg',
'service': 'collectd'},
'value': [1559177169.415, '119727200']}]
"""
set_log_config()
load_and_validate_env_vars(LIST_OF_ENV_VARIABLES)
LOG.info("Forming the get request ...")
list_of_substrings = []
params_map = {}
list_of_result_sets = []
list_of_substrings.append(MAP_ENV_VARIABLES['DATA_ENDPOINT'])
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
|
