Instrumentation Tools & Auto Instrumentation for OpenTelemetry Python
Project description
Installation
pip install opentelemetry-instrumentation
This package provides a couple of commands that help automatically instruments a program:
opentelemetry-bootstrap
opentelemetry-bootstrap --action=install|requirements
This commands inspects the active Python site-packages and figures out which
instrumentation packages the user might want to install. By default it prints out
a list of the suggested instrumentation packages which can be added to a requirements.txt
file. It also supports installing the suggested packages when run with --action=install
flag.
opentelemetry-instrument
opentelemetry-instrument python program.py
The instrument command will try to automatically detect packages used by your python program and when possible, apply automatic tracing instrumentation on them. This means your program will get automatic distributed tracing for free without having to make any code changes at all. This will also configure a global tracer and tracing exporter without you having to make any code changes. By default, the instrument command will use the OTLP exporter but this can be overriden when needed.
The command supports the following configuration options as CLI arguments and environment vars:
--exporter or OTEL_EXPORTER
Used to specify which trace exporter to use. Can be set to one or more of the well-known exporter names (see below).
Defaults to otlp.
Can be set to none to disable automatic tracer initialization.
You can pass multiple values to configure multiple exporters e.g, zipkin,prometheus
Well known trace exporter names:
jaeger
opencensus
otlp
otlp_span
otlp_metric
zipkin
otlp is an alias for otlp_span,otlp_metric.
--service-name or OTEL_SERVICE_NAME
When present the value is passed on to the relevant exporter initializer as service_name argument.
--ids-generator or OTEL_IDS_GENERATOR
Used to specify which IDs Generator to use for the global Tracer Provider. By default, it will use the random IDs generator.
The code in program.py needs to use one of the packages for which there is an OpenTelemetry integration. For a list of the available integrations please check here
OTEL_PYTHON_DISABLED_INSTRUMENTATIONS
If set by the user, opentelemetry-instrument will read this environment variable to disable specific instrumentations. e.g OTEL_PYTHON_DISABLED_INSTRUMENTATIONS = “requests,django”
Examples
opentelemetry-instrument -e otlp flask run --port=3000
The above command will pass -e otlp to the instrument command and --port=3000 to flask run.
opentelemetry-instrument -e zipkin,otlp celery -A tasks worker --loglevel=info
The above command will configure global trace provider, attach zipkin and otlp exporters to it and then start celery with the rest of the arguments.
opentelemetry-instrument --ids-generator random flask run --port=3000
The above command will configure the global trace provider to use the Random IDs Generator, and then pass --port=3000 to flask run.
References
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