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import logging
import logging.handlers
import queue
import uuid
from typing import List, cast
from urllib.request import urlopen
from temporalio import workflow
from temporalio.client import Client
from temporalio.runtime import (
LogForwardingConfig,
LoggingConfig,
PrometheusConfig,
Runtime,
TelemetryConfig,
TelemetryFilter,
)
from temporalio.worker import Worker
from tests.helpers import assert_eq_eventually, find_free_port
@workflow.defn
class HelloWorkflow:
@workflow.run
async def run(self, name: str) -> str:
return f"Hello, {name}!"
async def test_different_runtimes(client: Client):
# Create two workers in separate runtimes and run workflows on them.
# Confirm they each have different Prometheus addresses.
prom_addr1 = f"127.0.0.1:{find_free_port()}"
client1 = await Client.connect(
client.service_client.config.target_host,
namespace=client.namespace,
runtime=Runtime(
telemetry=TelemetryConfig(metrics=PrometheusConfig(bind_address=prom_addr1))
),
)
prom_addr2 = f"127.0.0.1:{find_free_port()}"
client2 = await Client.connect(
client.service_client.config.target_host,
namespace=client.namespace,
runtime=Runtime(
telemetry=TelemetryConfig(metrics=PrometheusConfig(bind_address=prom_addr2))
),
)
async def run_workflow(client: Client):
task_queue = f"task-queue-{uuid.uuid4()}"
async with Worker(client, task_queue=task_queue, workflows=[HelloWorkflow]):
assert "Hello, World!" == await client.execute_workflow(
HelloWorkflow.run,
"World",
id=f"workflow-{uuid.uuid4()}",
task_queue=task_queue,
)
await run_workflow(client1)
await run_workflow(client2)
# Get prom metrics on each
with urlopen(url=f"http://{prom_addr1}/metrics") as f:
assert "long_request" in f.read().decode("utf-8")
with urlopen(url=f"http://{prom_addr2}/metrics") as f:
assert "long_request" in f.read().decode("utf-8")
async def test_runtime_log_forwarding():
# Create logger with record capture
log_queue: queue.Queue[logging.LogRecord] = queue.Queue()
log_queue_list = cast(List[logging.LogRecord], log_queue.queue)
logger = logging.getLogger(f"log-{uuid.uuid4()}")
logger.addHandler(logging.handlers.QueueHandler(log_queue))
async def log_queue_len() -> int:
return len(log_queue_list)
# Create runtime
runtime = Runtime(
telemetry=TelemetryConfig(
logging=LoggingConfig(
filter=TelemetryFilter(core_level="DEBUG", other_level="ERROR"),
forwarding=LogForwardingConfig(logger=logger),
)
)
)
# Set capture only info logs
logger.setLevel(logging.INFO)
# Write some logs
runtime._core_runtime.write_test_info_log("info1", "extra1")
runtime._core_runtime.write_test_debug_log("debug2", "extra2")
runtime._core_runtime.write_test_info_log("info3", "extra3")
# Check the expected records
await assert_eq_eventually(2, log_queue_len)
assert log_queue_list[0].levelno == logging.INFO
assert log_queue_list[0].message.startswith(
"[sdk_core::temporal_sdk_bridge::runtime] info1"
)
assert (
log_queue_list[0].name
== f"{logger.name}-sdk_core::temporal_sdk_bridge::runtime"
)
assert log_queue_list[0].created == log_queue_list[0].temporal_log.time # type: ignore
assert log_queue_list[0].temporal_log.fields == {"extra_data": "extra1"} # type: ignore
assert log_queue_list[1].levelno == logging.INFO
assert log_queue_list[1].message.startswith(
"[sdk_core::temporal_sdk_bridge::runtime] info3"
)
# Clear logs and enable debug and try again
log_queue_list.clear()
logger.setLevel(logging.DEBUG)
runtime._core_runtime.write_test_info_log("info4", "extra4")
runtime._core_runtime.write_test_debug_log("debug5", "extra5")
runtime._core_runtime.write_test_info_log("info6", "extra6")
await assert_eq_eventually(3, log_queue_len)
assert log_queue_list[0].levelno == logging.INFO
assert log_queue_list[0].message.startswith(
"[sdk_core::temporal_sdk_bridge::runtime] info4"
)
assert log_queue_list[1].levelno == logging.DEBUG
assert log_queue_list[1].message.startswith(
"[sdk_core::temporal_sdk_bridge::runtime] debug5"
)
assert log_queue_list[2].levelno == logging.INFO
assert log_queue_list[2].message.startswith(
"[sdk_core::temporal_sdk_bridge::runtime] info6"
)
@workflow.defn
class TaskFailWorkflow:
@workflow.run
async def run(self) -> None:
raise RuntimeError("Intentional error")
async def test_runtime_task_fail_log_forwarding(client: Client):
# Client with lo capturing runtime
log_queue: queue.Queue[logging.LogRecord] = queue.Queue()
log_queue_list = cast(List[logging.LogRecord], log_queue.queue)
logger = logging.getLogger(f"log-{uuid.uuid4()}")
logger.addHandler(logging.handlers.QueueHandler(log_queue))
logger.setLevel(logging.WARN)
client = await Client.connect(
client.service_client.config.target_host,
namespace=client.namespace,
runtime=Runtime(
telemetry=TelemetryConfig(
logging=LoggingConfig(
filter=TelemetryFilter(core_level="WARN", other_level="ERROR"),
forwarding=LogForwardingConfig(logger=logger),
)
)
),
)
# Start workflow
task_queue = f"task-queue-{uuid.uuid4()}"
async with Worker(client, task_queue=task_queue, workflows=[TaskFailWorkflow]):
handle = await client.start_workflow(
TaskFailWorkflow.run,
id=f"workflow-{uuid.uuid4()}",
task_queue=task_queue,
)
# Wait for log to appear
async def has_log() -> bool:
return any(
l for l in log_queue_list if "Failing workflow task" in l.message
)
await assert_eq_eventually(True, has_log)
# Check record
record = next((l for l in log_queue_list if "Failing workflow task" in l.message))
assert record.levelno == logging.WARNING
assert record.name == f"{logger.name}-sdk_core::temporal_sdk_core::worker::workflow"
assert record.temporal_log.fields["run_id"] == handle.result_run_id # type: ignore