June 7, 2024

Automating Kubernetes Resource Discovery and Chaos Experiment Creation

Table of Contents

Key takeaway

Harness Delegate significantly simplifies and automates the process of implementing chaos engineering in Kubernetes environments. By automatically discovering Kubernetes resources and creating chaos experiments, Harness Delegate saves time and effort, ensures comprehensive and effective chaos tests, and enhances security through appropriate RBAC permissions. This automation provides a superior onboarding experience and allows users to focus on analyzing results and improving system resilience, ultimately making chaos engineering more accessible and effective.

Simplifying Chaos Engineering with Harness: Automating Kubernetes Resource Discovery and Chaos Experiment Creation

In the world of Kubernetes, managing and maintaining application stability amidst constant changes can be challenging. Chaos engineering has emerged as a powerful practice to ensure system resilience by intentionally injecting faults and observing how systems behave under stress. However, setting up and managing chaos experiments can be complex and time-consuming. Enter Harness Delegate—a tool designed to streamline this process by discovering resources on Kubernetes clusters and automatically creating chaos experiments. This innovation promises to bring a top-tier experience for users embarking on their chaos engineering journey.

What is Harness Delegate?

Harness Delegate is a lightweight, stateless service that runs within your Kubernetes cluster. It connects your cluster to the Harness platform, enabling seamless integration and management of resources. The Delegate automates the discovery of Kubernetes resources, making it easier to identify potential chaos candidates and execute experiments without manual intervention.

Automating Chaos Experiment Creation

One of the standout features of Harness Delegate is its ability to automatically create chaos experiments. This automation leverages the best practices in chaos engineering, reducing the setup time and ensuring that your experiments are comprehensive and effective. By integrating with Kubernetes' Role-Based Access Control (RBAC), Harness Delegate ensures that the necessary permissions are in place to execute chaos experiments securely and efficiently.

RBAC Permissions for DDCR-based Kubernetes Faults

To execute DDCR-based (Dynamic Data Collection and Reporting) Kubernetes faults, specific RBAC permissions are required. These permissions allow the chaos agent to interact with various Kubernetes resources, perform actions such as creating and deleting pods, and monitor system behavior. Here's a detailed list of the required permissions:

Topic lists the RBAC permissions required to execute DDCR-based Kubernetes faults

Enhancing the Chaos Journey

By automating resource discovery and chaos experiment creation, Harness Delegate significantly enhances the user experience. This automation not only saves time but also ensures that chaos experiments are thorough and follow best practices. Users can focus on analyzing the results and improving system resilience rather than getting bogged down in the setup process.

Key Benefits:

1. Streamlined Onboarding: Automating the discovery of Kubernetes resources and the creation of chaos experiments simplifies the onboarding process for new users.

2. Comprehensive Experiments: Automated creation ensures that all potential chaos candidates are considered, leading to more robust experiments.

3. Time Efficiency: Reduces the manual effort required to set up and manage chaos experiments, allowing users to focus on insights and improvements.

4. Enhanced Security: Leveraging RBAC permissions ensures that chaos experiments are executed securely within the cluster.

Process flow for executing a DDCR-based chaos experiment

These steps outline the process flow for executing a DDCR-based chaos experiment using the Harness platform.

  1. User creates PCF Experiment on Chaos Studio
  2. Chaos Manager generates the experiment manifest and passes the experiment payload to IFS
  3. IFS makes a request to the delegate to launch the DDCR orchestrator
  4. NG Delegate Manager receives the request
  5. Tracks experiment task progress
  6. Harness Kubernetes Delegate applies the DDCR workload
  7. Monitor for completion
  8. Transient pods launched with appropriate privileges just-in-time to inject the chaos processes into app containers
  9. Logs and results are relayed back to the control plane
  10. User views completed experiment and obtains resilience score

Harness Delegate brings a revolutionary approach to chaos engineering by automating resource discovery and chaos experiment creation in Kubernetes environments. This automation offers a superior experience for users, making it easier to embark on their chaos engineering journey and ultimately build more resilient systems. With the right RBAC permissions in place, Harness Delegate ensures that your chaos experiments are both effective and secure, paving the way for continuous improvement in system stability and reliability.

Simplifying Chaos Engineering with Harness: Automating Kubernetes Resource Discovery and Chaos Experiment Creation

In the world of Kubernetes, managing and maintaining application stability amidst constant changes can be challenging. Chaos engineering has emerged as a powerful practice to ensure system resilience by intentionally injecting faults and observing how systems behave under stress. However, setting up and managing chaos experiments can be complex and time-consuming. Enter Harness Delegate—a tool designed to streamline this process by discovering resources on Kubernetes clusters and automatically creating chaos experiments. This innovation promises to bring a top-tier experience for users embarking on their chaos engineering journey.

What is Harness Delegate?

Harness Delegate is a lightweight, stateless service that runs within your Kubernetes cluster. It connects your cluster to the Harness platform, enabling seamless integration and management of resources. The Delegate automates the discovery of Kubernetes resources, making it easier to identify potential chaos candidates and execute experiments without manual intervention.

Automating Chaos Experiment Creation

One of the standout features of Harness Delegate is its ability to automatically create chaos experiments. This automation leverages the best practices in chaos engineering, reducing the setup time and ensuring that your experiments are comprehensive and effective. By integrating with Kubernetes' Role-Based Access Control (RBAC), Harness Delegate ensures that the necessary permissions are in place to execute chaos experiments securely and efficiently.

RBAC Permissions for DDCR-based Kubernetes Faults

To execute DDCR-based (Dynamic Data Collection and Reporting) Kubernetes faults, specific RBAC permissions are required. These permissions allow the chaos agent to interact with various Kubernetes resources, perform actions such as creating and deleting pods, and monitor system behavior. Here's a detailed list of the required permissions:

Enhancing the Chaos Journey

By automating resource discovery and chaos experiment creation, Harness Delegate significantly enhances the user experience. This automation not only saves time but also ensures that chaos experiments are thorough and follow best practices. Users can focus on analyzing the results and improving system resilience rather than getting bogged down in the setup process.

Key Benefits:

1. Streamlined Onboarding: Automating the discovery of Kubernetes resources and the creation of chaos experiments simplifies the onboarding process for new users.

2. Comprehensive Experiments: Automated creation ensures that all potential chaos candidates are considered, leading to more robust experiments.

3. Time Efficiency: Reduces the manual effort required to set up and manage chaos experiments, allowing users to focus on insights and improvements.

4. Enhanced Security: Leveraging RBAC permissions ensures that chaos experiments are executed securely within the cluster.

Process flow for executing a DDCR-based chaos experiment

These steps outline the process flow for executing a DDCR-based chaos experiment using the Harness platform.

  1. User creates PCF Experiment on Chaos Studio
  2. Chaos Manager generates the experiment manifest and passes the experiment payload to IFS
  3. IFS makes a request to the delegate to launch the DDCR orchestrator
  4. NG Delegate Manager receives the request
  5. Tracks experiment task progress
  6. Harness Kubernetes Delegate applies the DDCR workload
  7. Monitor for completion
  8. Transient pods launched with appropriate privileges just-in-time to inject the chaos processes into app containers
  9. Logs and results are relayed back to the control plane
  10. User views completed experiment and obtains resilience score

Harness Delegate brings a revolutionary approach to chaos engineering by automating resource discovery and chaos experiment creation in Kubernetes environments. This automation offers a superior experience for users, making it easier to embark on their chaos engineering journey and ultimately build more resilient systems. With the right RBAC permissions in place, Harness Delegate ensures that your chaos experiments are both effective and secure, paving the way for continuous improvement in system stability and reliability.

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Chaos Engineering