from random import randint
from flask import Flask
from opentelemetry import trace
# Acquire a tracer
tracer = trace.get_tracer("diceroller.tracer")
app = Flask(__name__)
@app.route("/rolldice")defroll_dice():
username = get_username()returnstr(roll(username))defget_username():with tracer.start_as_current_span("get_username")as rollspan:
username ="hawksnowlog"
rollspan.set_attribute("username", username)return username
defroll(username:str):# This creates a new span that's the child of the current onewith tracer.start_as_current_span("roll")as rollspan:
res = randint(1,6)
rollspan.set_attribute("roll.value", res)return res
if __name__ =="__main__":
app.run(host="0.0.0.0", port=8080)
自動でトレースする設定は外し自分でトレースしたい箇所に設定します
基本的には tracer.start_as_current_span でトレースしたい箇所にスパンを作成するだけで OK です
以下の設定では2箇所でスパンを作成しています
from random import randint
from flask import Flask
from opentelemetry import trace
# Acquire a tracer
tracer = trace.get_tracer("diceroller.tracer")
app = Flask(__name__)
@app.route("/rolldice")defroll_dice():
username = get_username()returnstr(roll(username))defget_username():with tracer.start_as_current_span("get_username")as rollspan:
username ="hawksnowlog"
rollspan.set_attribute("username", username)return username
defroll(username:str):# This creates a new span that's the child of the current onewith tracer.start_as_current_span("roll")as rollspan:
res = randint(1,6)
rollspan.set_attribute("roll.value", res)return res
if __name__ =="__main__":
app.run(host="0.0.0.0", port=8080)
from random import randint
from flask import Flask, request
import logging
app = Flask(__name__)
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
@app.route("/rolldice")defroll_dice():
player = request.args.get('player', default=None,type=str)
result =str(roll())if player:
logger.warning("%s is rolling the dice: %s", player, result)else:
logger.warning("Anonymous player is rolling the dice: %s", result)return result
defroll():return randint(1,6)if __name__ =="__main__":
app.run(host="0.0.0.0", port=8080)
receivers:otlp:protocols:grpc:endpoint: 0.0.0.0:4317http:endpoint: 0.0.0.0:4318exporters:# NOTE: Prior to v0.86.0 use `logging` instead of `debug`.debug:verbosity: detailed
processors:batch:service:pipelines:traces:receivers:[otlp]exporters:[debug]processors:[batch]metrics:receivers:[otlp]exporters:[debug]processors:[batch]logs:receivers:[otlp]exporters:[debug]processors:[batch]
コンテナ起動
docker run -p 4317:4317 -v $(pwd)/otel-collector-config.yaml:/etc/otel-collector-config.yaml otel/opentelemetry-collector:latest --config=/etc/otel-collector-config.yaml
