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# Copyright (c) Authors of Clover
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
from flask import Blueprint, request, jsonify, Response
import redis
import logging
import collector
visibility_api = Blueprint('visibility_api', __name__)
HOST_IP = 'redis.default'
@visibility_api.route("/visibility/clear")
def clear_visibility():
# Zero out or delete redis keys with results
r = redis.StrictRedis(host=HOST_IP, port=6379, db=0)
r.set('trace_count', 0)
r.set('span_count', 0)
r.set('metric_count', 0)
del_keys = ['span_user_agent', 'span_urls', 'span_urls_z',
'span_status_codes_z', 'span_node_url_z', 'span_node_id_z',
'span_user_agent_z', 'span_status_code', 'span_node_id',
'span_upstream_cluster', 'span_operation_name']
for dk in del_keys:
r.delete(dk)
# Response time NA
services = list(r.smembers('visibility_services'))
for service in services:
s = service.replace('_', '-')
r.hset(s, 'min_rt', 'NA')
r.hset(s, 'avg_rt', 'NA')
r.hset(s, 'max_rt', 'NA')
# Truncate cassandra tables
return collector.truncate()
@visibility_api.route(
"/visibility/get/stats/<s_type>", methods=['GET', 'POST'])
def get_visibility_stats(s_type):
try:
p = request.json
if not p:
stat_type = s_type
else:
stat_type = p['stat_type']
r = redis.StrictRedis(host=HOST_IP, port=6379, db=0)
services = list(r.smembers('visibility_services'))
content = {}
if stat_type == 'system' or s_type == 'all':
content['trace_count'] = r.get('trace_count')
content['span_count'] = r.get('span_count')
content['metric_count'] = r.get('metric_count')
if stat_type == 'metrics' or s_type == 'all':
mp = list(r.smembers('metric_prefixes'))
ms = list(r.smembers('metric_suffixes'))
m = []
for service in services:
for prefix in mp:
for suffix in ms:
n = {}
m_name = 'metrics_' + prefix + service + suffix
n['name'] = m_name
n['service'] = service
n['prefix'] = prefix
n['suffix'] = suffix
n['values'] = r.lrange(m_name, 0, 100)
m.append(n)
content['metrics_time'] = m
if stat_type == 'tracing' or s_type == 'all':
# Response times
x = []
for service in services:
rt = {}
s = service.replace('_', '-')
rt['name'] = s
rt['min'] = r.hget(s, 'min_rt')
rt['avg'] = r.hget(s, 'avg_rt')
rt['max'] = r.hget(s, 'max_rt')
x.append(rt)
content['response_times'] = x
# Distinct
content['request_urls'] = list(r.smembers('span_urls'))
content['user_agents'] = list(r.smembers('span_user_agent'))
content['status_codes'] = list(r.smembers('span_status_code'))
content['op_names'] = list(r.smembers('span_operation_name'))
content['node_ids'] = list(r.smembers('span_node_id'))
content['upstream_clusters'] = list(r.smembers(
'span_upstream_cluster'))
# Zsets
content['user_agent_count'] = r.zrange(
"span_user_agent_z", 0, 50, False, True)
content['request_url_count'] = r.zrange(
"span_urls_z", 0, 50, False, True)
content['status_code_count'] = r.zrange(
"span_status_codes_z", 0, 50, False, True)
content['node_url_count'] = r.zrange(
"span_node_url_z", 0, 50, False, True)
content['node_id_count'] = r.zrange(
"span_node_id_z", 0, 50, False, True)
response = jsonify(content)
return response
except Exception as e:
logging.debug(e)
return Response("Error getting visibility stats", status=400)
@visibility_api.route("/visibility/get/<c_type>", methods=['GET', 'POST'])
def get_visibility_config(c_type):
try:
r = redis.StrictRedis(host=HOST_IP, port=6379, db=0)
content = {}
if c_type == 'services' or c_type == 'all':
services = list(r.smembers('visibility_services'))
content['visibility_services'] = services
if c_type == 'metrics' or c_type == 'all':
content['metric_prefixes'] = list(r.smembers('metric_prefixes'))
content['metric_suffixes'] = list(r.smembers('metric_suffixes'))
content['custom_metrics'] = list(r.smembers('custom_metrics'))
response = jsonify(content)
return response
except Exception as e:
logging.debug(e)
return Response("Error getting visibility config", status=400)
@visibility_api.route("/visibility/set", methods=['GET', 'POST'])
def set_visibility():
return collector.set_collector()
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