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Diffstat (limited to 'vnfs/DAaaS')
4 files changed, 145 insertions, 0 deletions
diff --git a/vnfs/DAaaS/applications/m3db_promql/promql_api/README.md b/vnfs/DAaaS/applications/m3db_promql/promql_api/README.md new file mode 100644 index 00000000..4493af22 --- /dev/null +++ b/vnfs/DAaaS/applications/m3db_promql/promql_api/README.md @@ -0,0 +1,50 @@ +## What does this API do ? +This api as of now provides a function which takes in a lits of 'LABELS' of prometheus +and returns the corresponding result_sets in a list. + +For eg: +If the labels is + +``` +LABELS = ['irate(collectd_cpufreq{exported_instance="otconap7",cpufreq="1"}[2m])'] +``` + +The return is: + +``` +[{'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']}] +``` + +## How to use this API ? + +``` +1. Copy the directory 'promql_api' to your working directory. +``` + +``` +2. Import the API function: query_m3db +from promql_api.prom_ql_api import query_m3db +``` + +``` +3. have a global or local variable as 'LABELS' +LABELS = ['irate(collectd_cpufreq{exported_instance="otconap7",cpufreq="1"}[2m])'] +``` + +``` +4. Store the result set in a list: +list_of_result_sets = query_m3db(LABELS) +``` + +## How to troubleshoot ? + +* Check the sample file - sample_promql_query.py in the repo. +* Make sure the file __init__.py is present in promql_api directory after you copy the directory. diff --git a/vnfs/DAaaS/applications/m3db_promql/promql_api/__init__.py b/vnfs/DAaaS/applications/m3db_promql/promql_api/__init__.py new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/vnfs/DAaaS/applications/m3db_promql/promql_api/__init__.py diff --git a/vnfs/DAaaS/applications/m3db_promql/promql_api/prom_ql_api.py b/vnfs/DAaaS/applications/m3db_promql/promql_api/prom_ql_api.py new file mode 100644 index 00000000..2bc102c4 --- /dev/null +++ b/vnfs/DAaaS/applications/m3db_promql/promql_api/prom_ql_api.py @@ -0,0 +1,83 @@ +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()
\ No newline at end of file diff --git a/vnfs/DAaaS/applications/m3db_promql/sample_promql_query.py b/vnfs/DAaaS/applications/m3db_promql/sample_promql_query.py new file mode 100644 index 00000000..ef360809 --- /dev/null +++ b/vnfs/DAaaS/applications/m3db_promql/sample_promql_query.py @@ -0,0 +1,12 @@ +from promql_api.prom_ql_api import query_m3db +import pprint + +LABELS = ['irate(collectd_cpufreq{exported_instance="otconap7",cpufreq="1"}[2m])'] + +def main(): + list_of_result_sets = query_m3db(LABELS) + for each_result in list_of_result_sets: + pprint.pprint(each_result) + +if __name__ == "__main__": + main()
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