hey <@ULVA73B9P> Do you have a full example of a `...
# ask-marvin
f
hey @Marvin Do you have a full example of a `prefect.toml`file ? I want to see how to configure logging format in particular
m
Could you please tell me which version of Prefect you are using? This will help me provide the most accurate information for configuring your
prefect.toml
file, especially regarding logging format configuration.
f
Prefect 3.1.4
@Marvin I use Prefect 3.1.4, but you can give me an answer for the latest version
m
To configure logging in a
prefect.toml
file for Prefect 3.1.4 and newer versions, you can specify settings that control various environment-specific configurations. Here's a concise example of how you might configure your
prefect.toml
file for logging:
Copy code
toml
[logging]
level = "INFO"  # You can set this to DEBUG, INFO, WARNING, ERROR, CRITICAL
formatter = "%(asctime)s | %(levelname)-7s | %(flow_run_name)r - %(message)s"
In this configuration: -
level
specifies the logging level, which can be adjusted based on the verbosity you need (e.g., DEBUG or INFO). -
formatter
allows you to define the format of your log messages. You can customize the format using various variables such as
%(asctime)s
,
%(levelname)s
, and
%(flow_run_name)r
to tailor the logging output to your requirements. More details on logging can be found in Prefect's logging documentation, and general settings configuration is available in Prefect's settings and profiles guide. Remember, Prefect settings are loaded at runtime, meaning modifications to the logging configuration will reflect when you restart your application or task. So, feel free to tweak those logs like a maestro conducting an orchestra, only with fewer violins and more Python!
f
Doesn’t seems to work. @Marvin you need to figure what is the corect toml format for the standard yml config
m
It seems that configuring logging directly in
prefect.toml
might not work exactly as expected because Prefect primarily uses a
logging.yml
file for more complex configurations. To achieve the logging customization you're aiming for, you might need to override the default logging configuration using a
logging.yml
file or environment variables. Here’s a more detailed approach you can try: ### Using a
logging.yml
File 1. Create a Custom
logging.yml
: You can create a
logging.yml
file within your
PREFECT_HOME
directory. This allows you to completely customize the logging setup. 2. Set Environment Variables: You can define environment variables of the form
PREFECT_LOGGING_[PATH]_[TO]_[KEY]=value
to make specific changes. For example, changing the root logging level can be done using
PREFECT_LOGGING_ROOT_LEVEL
. 3. Documentation Reference: Further details on customizing logging can be found in the Prefect logging documentation. Ultimately, handling your configurations at this level gives you fine-grained control over logging, similar to crafting a detailed symphony... just one played entirely by machines. If you're still experiencing issues or need further customization, exploring Prefect's GitHub issues might provide additional insights.
n
i dont address logging formatting config in particular, but you might find

this

helpful