You to specify a command with parameters. It looks similar to CMD, because it also allows It totally depend on the script or command inside entrypoint.sh, but few things can be considered.ĮNTRYPOINT instruction allows you to configure a container that will What does entrypoint: "entrypoint.sh" actually do? If you to override the default behaviour of base image then you can change, ohterwise you do not need to override it from docker-compose. Happy to help you.If the base image has entrypoint.sh, it will run that, but if you override with your own entrypoint then the container will run the override entrypoint. Please let me know if you have any questions. In next blog we will see more details like architecture, Predator background, advanced features in detail. Click on View button on the appropriate test name as shown below. Predator Running Container Viewing Reportĭuring the test run or after its completed, you can view the report in Last Reports page. Predator will create a container which will execute the tests. Launch powershell or command prompt and issue docker ps command to see the running containers. Predator uses jobs to execute the test.Ĭonfigure below job details and then clicking on Submit will trigger the test immediately. ![]() To run the test, click on Run button as shown below. You can create multiple scenarios and multiple API calls based on your test strategy. This will create a test and displays it in the Tests page. ![]() Let us test our demo API by configuring below details in Test and then hit Submit. To create your first test, click on Tests and then click on Create Test. But for me it did not work, hence I installed Swagger pet store. Predator does come with sample pet store docker image. Below is my sample API call to the pet’s details. I am using the port 3001 to install the Swagger pet store. Sample Demo Applicationīefore we begin creating our first test, let us install sample pet store from Swagger docker.ĭocker run -d -e SWAGGER_HOST= -e SWAGGER_URL= -e SWAGGER_BASE_PATH=/v2 -p 3001:8080 swaggerapi/petstore In Settings page, you can configure Benchmarks, SMTP, Metrics, Resource configuration, and you can also do housekeeping the containers. Internal address should point to local IP address if you are running Predator locally. The user interface is built using React framework.īefore you start your first test, make sure the Settings are properly configured. ![]() After successful installation, Predator will be up and running in Getting Started with Predator - ruthless API performance testing To get started, I will be running Predator in Docker in Windows 10 Pro. Install thru Universe within the cluster. W/o persistent storage, fire the below commandĭocker run -d -e JOB_PLATFORM=DOCKER -e INTERNAL_ADDRESS= -p 80:80 -name predator -v /var/run/docker.sock:/var/run/docker.sock zooz/predatorĭocker run -d -e SQLITE_STORAGE=db/predator -e JOB_PLATFORM=DOCKER -e INTERNAL_ADDRESS= -p 80:80 -name predator -v /var/run/docker.sock:/var/run/docker.sock -v /tmp/predator:/usr/db zooz/predatorĪfter successful installation, you can access the UI at or For Kubernetes: Installing Predator is quite simple if you are already experienced in Docker or k8s or DC/OS. Bootstrapped with a user-friendly UI alongside a simple REST API, Predator helps developers simplify the performance testing regime. We designed Predator to manage the entire lifecycle of stress-testing a server, from creating a test file, to running scheduled and on-demand tests, and finally viewing the test results. We were fed up with the limitations of out-of-the-box solutions and the complication of writing complex custom tests. Predator is an open-source performance framework we created for ourselves. Each tool comes with its own set of features and limitations. I am not going to compare Predator with other tools’ features. Because you will be using your own infrastructure for performance testing. You can run unlimited tests using unlimited resources with unlimited threads/virtual users. Predator supports installation in Docker, Kubernetes, and DC/OS. ![]() Predator is free, open-source, and distributed load testing tool especially for APIs performance testing. This blog will feature Predator and how to get started with performance testing using Docker. Later I spent half-a-day to explore about Predator and its features. When I was browsing thru chaos engineering, I landed to v page accidentally. The most well-known tools such as Apache JMeter, Micro Focus LoadRunner, Gatling, Neotys NeoLoad etc., has large user base and community. There are lot of tools, solutions, and framework is available for performance testing. This blog post originally appeared on my blog
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