@Marvin is it possible to send logs created using the default python logger from my flow running in ECS to the prefect cloud UI?

Python logger logs to Prefect Cloud UI, ECS??? Please specify Prefect version you are using?

3.0.1

To log custom messages and send them to the Prefect Cloud UI from ECS, you can use Prefect's built-in logging capabilities. Here's a basic outline: 1. Prefect Logging Setup: - Prefect has built-in loggers that can send logs to the UI. Use

get_run_logger

to get a logger instance. - Example:

python
    from prefect import flow, get_run_logger

    @flow
    def my_flow():
        logger = get_run_logger()
        <http://logger.info|logger.info>("This is a custom log message.")

2. ECS Configuration: - Ensure ECS tasks can send logs to AWS CloudWatch. - Set

stream_output

and

configure_cloudwatch_logs

to handle logs properly in ECS. 3. Connecting to Prefect Cloud: - Use the Prefect CLI to set your API URL and key.

sh
    prefect config set PREFECT_API_URL="<https://api.prefect.cloud/api/accounts/[ACCOUNT-ID]/workspaces/[WORKSPACE-ID]>"
    prefect config set PREFECT_API_KEY="[API-KEY]"

Useful Links: - Prefect 3.0 Logging - ECS Worker Guide - Connecting to Prefect Cloud For more specific errors, feel free to check these guides or provide version-specific details!

@Marvin my flow calls code that has its own loggers. is there a way prefect can capture those so that they are visible in the UI?

Yes, Prefect can capture logs from existing Python loggers to be visible in the Prefect Cloud UI. Here are key steps: 1. Configure the Root Logger: - Prefect automatically captures logs from the root logger of the Python logging module. Ensure your existing loggers propagate their logs to the root logger. - You might have to set the logger's propagate attribute to

True

. 2. Set Environment Variables: - Override the root logger's level and ensure it captures logs from other libraries.

sh
    export PREFECT_LOGGING_ROOT_LEVEL="DEBUG"

3. Prefect Logger Configuration: - Customize Prefect’s logging configuration via environment variables or settings.

sh
    PREFECT_LOGGING_[PATH]_[TO]_[KEY]=value

- Example to set log level for flows:

sh
    prefect config set PREFECT_LOGGING_LOGGERS_PREFECT_FLOW_RUNS_LEVEL="DEBUG"

### Sample Code:

python
import logging
from prefect import flow, get_run_logger

# Set up existing logger
existing_logger = logging.getLogger('my_existing_logger')
existing_logger.setLevel(logging.DEBUG)
existing_logger.propagate = True

@flow
def my_flow():
    logger = get_run_logger()
    <http://logger.info|logger.info>("This is a Prefect log message.")
    existing_logger.debug("This is a debug message from existing logger.")

my_flow()

### Resources to Check: - Prefect 2.x Logging Guide - Prefect 3.x Logging - Troubleshoot Prefect Cloud By ensuring your custom loggers propagate their logs to the root logger, Prefect will capture and show them in the UI.

this worked 🙏 thank you @Marvin!

Grug happy you happy! If more questions, Grug here. Happy logging! 🙏😄