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Jmeter azure devops
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JMeter
Alexandre Gattiker
About JMeter
Apache JMeter is a highly versatile open-source integration testing tool. It is often used as a load testing tool for web applications, but can also be used for functional testing and for testing other types of services, such as databases.
About Taurus
Taurus is an open-source automation test framework, that can be used in particular to automate JMeter executions. Taurus can take an existing JMeter plan and define load profile and assertions through simple configuration. Taurus can export a test report in JUnit format, that can be published to an Azure DevOps pipeline.
About the JMeter extension
This extension provides the following components:
- A JMeterInstaller task that installs JMeter along with a flexible collection of plugins
- A TaurusInstaller task that installs Taurus on a Python 3.6+ environment
- A TaurusRunner task that can run JMeter or other test plans using Taurus and produces test results and reports
The JMeter tool installer task acquires a specified version of JMeter from the Internet or the tools cache and prepends it to the PATH of the Azure Pipelines Agent (hosted or private). This task can be used to change the version of JMeter used in subsequent tasks. Adding this task before the TaurusRunner in a build definition ensures you are using that task with the right JMeter version.
This extension is intended to run on Windows, Linux and MacOS agents.
JMeter tool installer task
- Search for JMeter tool installer and click on Add
In the Version input, select the exact version of JMeter you want to install on the build agent. e.g. if you want to install version 5.1, enter 5.1
In the Plugins input, optionally enter a comma-separated list of JMeter plugins to install
Taurus tool installer task
Ensure you have Python 3.6+ installed. Search for Use Python version and click on Add
Search for Taurus tool installer and click on Add
- In the Version input, select the exact version of Taurus you want to install on the build agent. e.g. if you want to install version 1.14.0, enter 1.14.0
Taurus tool runner task
- Search for Taurus tool runner and click on Add
In the Taurus Arguments enter a space-separated list of files or websites to test. The following arguments can be passed:
Taurus YAML definition file (recommended), which can reference a JMeter JMX file. Example:
A JMeter JMX file. This is equivalent to the following YAML file:
A URL to test, for quick load testing.
Extra options and arguments to the bzt command line. For example, you can pass -o modules.jmeter.properties.KEY=VALUE to inject a property via a placeholder $ <__P(KEY)>in a JMeter plan.
Leave the JMeter Home, JMeter Path and JMeter Version fields to their default value, to use the version of JMeter installed by the JMeter Installer task.
The Artifacts output directory will contain a report directory with an HTML report.
Enter a value in the Report name field to generate an HTML report. The report will be available as a build artifact in a build pipeline, or in the build logs in a release pipeline:
Advanced usage
Setting JMeter properties
Check the Taurus JMeter documentation for how to control the JMeter execution in detail.
JMeter properties can be set in the YAML file, or as arguments as a JSON structure. For example, to change the granularity of report time graphs from the default of 60000 ms, use the following argument to the Taurus tool runner task:
Real-time test monitoring with Azure Application Insights
You can follow your test progress using real-time dashboards using the Application Insights managed service.
In your local JMeter installation, configure the Plugins Manager and install the Azure backend listener plugin to send live data to Application Insights.
In your JMeter test plan, add a Backend Listener using the Azure listener and the instrumentation key placeholder $ <__P(INSTRUMENTATION_KEY)>.
In your pipeline, in the JMeter tool installer task, under plugins, enter jmeter.backendlistener.azure in order to install the plugin on the build agent as well.
In your pipeline, configure the JMeter Installer task, the Taurus Installer task, and the Taurus Runner task. As argument to the Taurus Runner task, enter:
When running your test, you can follow the run outcomes in the Application Insights resource in the Azure portal:
You can see test data in real time in the Live Metrics view. Note that the view is available only while the test is running.
You can also dig into the logs ( requests collection) and generate charts and dashboards:
Using custom Java libraries
You can extend the JMeter classpath to use additional libraries. This example walks through setting up a Sampler that sends requests to a Kafka endpoint (for example, an Azure Event Hubs instance).
- In your code repository, create a file kafka-clients-uber-jar.xml with the following content:
This is a Maven POM file that only serves to collect the org.apache.kafka:kafka-clients Maven JAR and all its dependencies into a single "shaded" JAR, that we will put in the classpath of our job run.
In your pipeline, configure a Maven task to run the package goal on your kafka-clients-uber-jar.xml POM file.
Create a JMeter test plan with custom code to connect to Kafka. The easiest way is to create a JSR223 Sampler and write Groovy code.
- In your code repository, create a file kafka-test.yml with the following content:
Ensure that the user.classpath points to the location where the Maven task builds the target JAR.
- In your pipeline, configure the JMeter Installer task, the Taurus Installer task, and the Taurus Runner task. As argument to the Taurus Runner task, enter the location of your kafka-test.yml file.
Distributed testing
Running JMeter in distributed mode (Remote Testing) requires bidirectional communication between server and client instances. Therefore, it can only be used with self-hosted agents. You could run JMeter servers on Virtual Machines or Azure Container Instances on the same virtual network as the hosted agent.
For instance, deploy an Azure Container Instance in the Azure portal. Use the justb4/jmeter:5.1.1 Docker image for JMeter from Docker Hub. Under Networking, place your instance in a new subnet in your VNET. In Advanced settings, use command override and enter command <>/entrypoint.sh", "-s", "-Jserver.rmi.ssl.disable=true" ] .
Run JMeter from the command line with the -R flag:
or use the Taurus runner to run JMeter in distributed mode:
For a more complete solution template, see the JMeter and Terraform Azure sample on GitHub.
Jmeter azure devops
Jmeter azure devops
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Jmeter azure devops
Extension for Azure DevOps - Install and run JMeter and Taurus testing tools.
Jmeter azure devops
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Eduard Kabrinskiy
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