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Feature/ticket194 (#201)
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* Initial implementation of autoinstrumentation. Works with the flask example.

* Adding ability to selectively enable modules to autoinstrumentation command.

* By default, enable instrumentation on all supported modules.

* Adding hypertrace-instrument tests to standard test suite.

* Regenerating pydocs. Added autoinstrumentation example.

* Updating readme with autoinstrumentation instructions.

* Updating README with clarification regarding not adding instrumentation code to an application using autoinstrumentation.

* Implement singleton for Agent class to ensure instrumentation classes are only initialized once.

* Update package dependencies to set minimum package versions.

* Updating code to fix new lint issue being reported.

* Correcting typo.

* A thread safe singleton implementation.

* Updating hypertrace_instrument run() function with comments. Broke PYTHONPATH update logic into a separate function.

* sitecustomize.py cleanup.

* Adding pydoc comment back into generated file.

* Updating flask initialization logic to correctly call instrument_app() vs instrument(). Added detailed explanation of how it is supposed to owrik in comments.

* Adding explanation of selinux commands.

* Adding comment back into generated file. Making argument parsing logic more readable.

* Restoring Makefile to original configuration.

* Removing agent.log creation.

* Updating pydoc documentation.

* Removing extra argument in FlaskInstrumentor.instrument_app().

* docs: fixes readme.

Co-authored-by: rcbjBlueMars <[email protected]>
Co-authored-by: José Carlos Chávez <[email protected]>
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3 people authored May 13, 2021
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2 changes: 1 addition & 1 deletion Makefile
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Expand Up @@ -20,7 +20,7 @@ test-integration:
cd ${TEST_DIR}/gunicorn; HT_LOG_LEVEL=${LOG_LEVEL} tox -e ${PY_TARGET}
cd ${TEST_DIR}/requests; HT_LOG_LEVEL=${LOG_LEVEL} tox -e ${PY_TARGET}
cd ${TEST_DIR}/aiohttp; HT_LOG_LEVEL=${LOG_LEVEL} tox -e ${PY_TARGET}
cd ${TEST_DIR}/docker; HT_LOG_LEVEL=${LOG_LEVEL} tox -e ${PY_TARGET}
cd ${TEST_DIR}/autoinstrumentation; HT_LOG_LEVEL=${LOG_LEVEL} tox -e ${PY_TARGET}

.PHONY: test
test: test-unit test-integration
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15 changes: 13 additions & 2 deletions README.md
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Expand Up @@ -36,11 +36,22 @@ from hypertrace.agent import Agent
...

agent = Agent() # initialize the agent
agent.registerFlaskApp(app) # instrument a flask application
agent.registerMySQL() # instrument the MySQL client
agent.register_flask_app(app) # instrument a flask application
agent.register_mysql() # instrument the MySQL client
...
```

or

- Use the autoinstrumentation CLI (without any modification to application code)
```
HT_INSTRUMENTED_MODULES=flask,mysql
hypertrace-instrument python app.py
```
By default, all supported modules are instrumented.

*Important:* do not attempt to instantiate a hypertrace.agent.Agent object while using hypertrace-instrument.

For further examples, check our [examples section](./examples)

### Configuration
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40 changes: 20 additions & 20 deletions dev-requirements.txt
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@@ -1,21 +1,21 @@
opentelemetry-api==1.1.0
opentelemetry-exporter-otlp==1.1.0
opentelemetry-exporter-zipkin==1.1.0
opentelemetry-instrumentation==0.20b0
opentelemetry-instrumentation-aiohttp-client==0.20b0
opentelemetry-instrumentation-wsgi==0.20b0
opentelemetry-instrumentation-flask==0.20b0
opentelemetry-instrumentation-mysql==0.20b0
opentelemetry-instrumentation-psycopg2==0.20b0
opentelemetry-instrumentation-requests==0.20b0
opentelemetry-instrumentation-grpc==0.20b0
opentelemetry-propagator-b3==1.1.0
opentelemetry-sdk==1.1.0
opentelemetry-util-http==0.20b0
google==3.0.0
opentelemetry-api>=1.1.0
opentelemetry-exporter-otlp>=1.1.0
opentelemetry-exporter-zipkin>=1.1.0
opentelemetry-instrumentation>=0.20b0
opentelemetry-instrumentation-aiohttp-client>=0.20b0
opentelemetry-instrumentation-wsgi>=0.20b0
opentelemetry-instrumentation-flask>=0.20b0
opentelemetry-instrumentation-mysql>=0.20b0
opentelemetry-instrumentation-psycopg2>=0.20b0
opentelemetry-instrumentation-requests>=0.20b0
opentelemetry-instrumentation-grpc>=0.20b0
opentelemetry-propagator-b3>=1.1.0
opentelemetry-sdk>=1.1.0
opentelemetry-util-http>=0.20b0
google>=3.0.0
pyyaml
pytest==6.2.3
protobuf==3.15.8
tox==3.23.0
pylint==2.7.4
pdoc3==0.9.2
pytest>=6.2.3
protobuf>=3.15.8
tox>=3.23.0
pylint>=2.7.4
pdoc3>=0.9.2
247 changes: 247 additions & 0 deletions docs/hypertrace/agent/autoinstrumentation/hypertrace_instrument.html
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<body>
<main>
<article id="content">
<header>
<h1 class="title">Module <code>hypertrace.agent.autoinstrumentation.hypertrace_instrument</code></h1>
</header>
<section id="section-intro">
<p>This module implements a CLI command that be used to
autoinstrument existing pythong programs that use supported
modules.</p>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python"># Based upon the OTel autoinstrumentation feature
&#39;&#39;&#39;This module implements a CLI command that be used to
autoinstrument existing pythong programs that use supported
modules.&#39;&#39;&#39;
import argparse
from logging import getLogger
from os import environ, execl, getcwd
from os.path import abspath, dirname, pathsep
from shutil import which

logger = getLogger(__file__)

def parse_args():
&#39;&#39;&#39;Parse CLI arguments.&#39;&#39;&#39;
parser = argparse.ArgumentParser(
description=&#34;&#34;&#34;
hypertrace-instrument automatically instruments a Python
program and runs the program
&#34;&#34;&#34;
)

parser.add_argument(&#34;command&#34;, help=&#34;Your Python application.&#34;)

parser.add_argument(
&#34;command_args&#34;,
help=&#34;Arguments for your application.&#34;,
nargs=argparse.REMAINDER,
)

return parser.parse_args()

def update_python_path() -&gt; None:
&#39;&#39;&#39;Retrieve existing PYTHONPATH&#39;&#39;&#39;
python_path = environ.get(&#34;PYTHONPATH&#34;)

# Split the paths
if not python_path:
python_path = []
else:
python_path = python_path.split(pathsep)

# Get the current working directory
cwd_path = getcwd()

# If this directory is already in python_path, remove it.
python_path = [path for path in python_path if path != cwd_path]

# If cwd is not in the PYTHONPATH, add it to the front.
if cwd_path not in python_path:
python_path.insert(0, cwd_path)

# What is the directory containing this python file?
filedir_path = dirname(abspath(__file__))

# If this directory is already in python_path, remove it.
python_path = [path for path in python_path if path != filedir_path]

# If this diretory is not in python_path, add it to the front
python_path.insert(0, filedir_path)

# Reset PYTHONPATH environment variable
environ[&#34;PYTHONPATH&#34;] = pathsep.join(python_path)

def run() -&gt; None:
&#39;&#39;&#39;hypertrace-instrument Entry point&#39;&#39;&#39;
args = parse_args()

# update PYTHONPATH env var
update_python_path()

# Get full path to the command that was passed in as an
# argument
executable = which(args.command)

# Execute the app
execl(executable, executable, *args.command_args)

if __name__ == &#39;__main__&#39;:
run()</code></pre>
</details>
</section>
<section>
</section>
<section>
</section>
<section>
<h2 class="section-title" id="header-functions">Functions</h2>
<dl>
<dt id="hypertrace.agent.autoinstrumentation.hypertrace_instrument.parse_args"><code class="name flex">
<span>def <span class="ident">parse_args</span></span>(<span>)</span>
</code></dt>
<dd>
<div class="desc"><p>Parse CLI arguments.</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def parse_args():
&#39;&#39;&#39;Parse CLI arguments.&#39;&#39;&#39;
parser = argparse.ArgumentParser(
description=&#34;&#34;&#34;
hypertrace-instrument automatically instruments a Python
program and runs the program
&#34;&#34;&#34;
)

parser.add_argument(&#34;command&#34;, help=&#34;Your Python application.&#34;)

parser.add_argument(
&#34;command_args&#34;,
help=&#34;Arguments for your application.&#34;,
nargs=argparse.REMAINDER,
)

return parser.parse_args()</code></pre>
</details>
</dd>
<dt id="hypertrace.agent.autoinstrumentation.hypertrace_instrument.run"><code class="name flex">
<span>def <span class="ident">run</span></span>(<span>) ‑> NoneType</span>
</code></dt>
<dd>
<div class="desc"><p>hypertrace-instrument Entry point</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def run() -&gt; None:
&#39;&#39;&#39;hypertrace-instrument Entry point&#39;&#39;&#39;
args = parse_args()

# update PYTHONPATH env var
update_python_path()

# Get full path to the command that was passed in as an
# argument
executable = which(args.command)

# Execute the app
execl(executable, executable, *args.command_args)</code></pre>
</details>
</dd>
<dt id="hypertrace.agent.autoinstrumentation.hypertrace_instrument.update_python_path"><code class="name flex">
<span>def <span class="ident">update_python_path</span></span>(<span>) ‑> NoneType</span>
</code></dt>
<dd>
<div class="desc"><p>Retrieve existing PYTHONPATH</p></div>
<details class="source">
<summary>
<span>Expand source code</span>
</summary>
<pre><code class="python">def update_python_path() -&gt; None:
&#39;&#39;&#39;Retrieve existing PYTHONPATH&#39;&#39;&#39;
python_path = environ.get(&#34;PYTHONPATH&#34;)

# Split the paths
if not python_path:
python_path = []
else:
python_path = python_path.split(pathsep)

# Get the current working directory
cwd_path = getcwd()

# If this directory is already in python_path, remove it.
python_path = [path for path in python_path if path != cwd_path]

# If cwd is not in the PYTHONPATH, add it to the front.
if cwd_path not in python_path:
python_path.insert(0, cwd_path)

# What is the directory containing this python file?
filedir_path = dirname(abspath(__file__))

# If this directory is already in python_path, remove it.
python_path = [path for path in python_path if path != filedir_path]

# If this diretory is not in python_path, add it to the front
python_path.insert(0, filedir_path)

# Reset PYTHONPATH environment variable
environ[&#34;PYTHONPATH&#34;] = pathsep.join(python_path)</code></pre>
</details>
</dd>
</dl>
</section>
<section>
</section>
</article>
<nav id="sidebar">
<h1>Index</h1>
<div class="toc">
<ul></ul>
</div>
<ul id="index">
<li><h3>Super-module</h3>
<ul>
<li><code><a title="hypertrace.agent.autoinstrumentation" href="index.html">hypertrace.agent.autoinstrumentation</a></code></li>
</ul>
</li>
<li><h3><a href="#header-functions">Functions</a></h3>
<ul class="">
<li><code><a title="hypertrace.agent.autoinstrumentation.hypertrace_instrument.parse_args" href="#hypertrace.agent.autoinstrumentation.hypertrace_instrument.parse_args">parse_args</a></code></li>
<li><code><a title="hypertrace.agent.autoinstrumentation.hypertrace_instrument.run" href="#hypertrace.agent.autoinstrumentation.hypertrace_instrument.run">run</a></code></li>
<li><code><a title="hypertrace.agent.autoinstrumentation.hypertrace_instrument.update_python_path" href="#hypertrace.agent.autoinstrumentation.hypertrace_instrument.update_python_path">update_python_path</a></code></li>
</ul>
</li>
</ul>
</nav>
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