Label injection validation

Oct 13, 2025 by thesweetdesigns.com 75 views

Introduction

In the realm of cloud-native applications, managing resources and ensuring proper labeling is crucial for efficient monitoring, scaling, and troubleshooting. The Greenhouse controller, a key component of the cloudoperators ecosystem, plays a vital role in deploying and managing resources on remote clusters. However, ensuring that resources are properly labeled can be a complex task, especially when dealing with multiple plugins and helm charts. In this feature, we will explore how to inject owner labels into helm charts using the owner-label-injector provided by the 704 feature.

Problem Statement

When deploying resources through a Plugin, it is essential to have the greenhouse.sap/support-group label present on all running resources on the remote Cluster. However, manually injecting labels into helm charts can be a time-consuming and error-prone process. Moreover, as the number of plugins and helm charts grows, maintaining accurate and up-to-date labels becomes increasingly challenging.

Solution Overview

To address this issue, we will utilize the owner-label-injector provided by the 704 feature. This injector will take care of labeling the resources, ensuring that the greenhouse.sap/support-group label is present on all running resources on the remote Cluster. The Greenhouse controller will only need to inject the Ownership references to the underlying helm chart of the Plugin on deployment.

How it Works

The owner-label-injector will be responsible for injecting the owner-info subchart into the helm manifest deployed via the Plugin. This subchart will contain the respective values deducted from the Ownership maintained on the Plugin. The injector will only inject the owner-info subchart if it is not already present, ensuring that values are always set from the Plugin Ownership.

Acceptance Criteria

To ensure that this feature meets the required standards, the following acceptance criteria must be met:

The helm manifest deployed via the Plugin contains the owner-info subchart with the respective values deducted from the Ownership maintained on the Plugin.
We only inject the owner-info subchart if it is not already present. Values are always set from the Plugin Ownership.
Behavior is validated via tests.

Benefits

By implementing this feature, we can ensure that resources are properly labeled, making it easier to monitor, scale, and troubleshoot cloud-native applications. This will lead to improved efficiency, reduced errors, and enhanced overall system reliability.

Implementation Details

To implement this feature, we will follow these steps:

Configure the owner-label-injector: We will configure the owner-label-injector to run on the target Cluster.
Inject Ownership references: The Greenhouse controller will inject the Ownership references to the underlying helm chart of the Plugin on deployment.
Inject owner-info subchart: The owner-label-injector will inject the owner-info subchart into the helm manifest deployed via the Plugin.

Testing and Validation

To ensure that this feature meets the required standards, we will perform the following tests:

Helm manifest validation: We will validate that the helm manifest deployed via the Plugin contains the owner-info subchart with the respective values deducted from the Ownership maintained on the Plugin.
Label injection validation: We will validate that the owner-label-injector correctly injects the greenhouse.sap/support-group label on all running resources on the remote Cluster.
Behavior validation: We will validate that the behavior of the owner-label-injector is as expected, ensuring that values are always set from the Plugin Ownership.

Conclusion

In conclusion, the owner-label-injector provided by the 704 feature will play a crucial role in ensuring that resources are properly labeled on remote clusters. By injecting the owner-info subchart into the helm manifest deployed via the Plugin, we can ensure that the greenhouse.sap/support-group label is present on all running resources on the remote Cluster. This feature will lead to improved efficiency, reduced errors, and enhanced overall system reliability.

Future Work

In the future, we plan to expand this feature to support additional labeling scenarios, such as injecting labels based on resource type or namespace. We will also explore integrating this feature with other cloud-native tools and platforms to further enhance its functionality.

Reference Issues

For more information on this feature, please refer to the following issues:

704 feature
[FEAT] - Support Group Inject Owner Labels into Helm Chart: Q&A ===========================================================

Introduction

In our previous article, we explored how to inject owner labels into helm charts using the owner-label-injector provided by the 704 feature. In this Q&A article, we will address some of the most frequently asked questions about this feature.

Q: What is the purpose of the `owner-label-injector`?

A: The owner-label-injector is a tool that injects the owner-info subchart into the helm manifest deployed via the Plugin. This subchart contains the respective values deducted from the Ownership maintained on the Plugin.

Q: How does the `owner-label-injector` work?

A: The owner-label-injector works by injecting the owner-info subchart into the helm manifest deployed via the Plugin. This subchart contains the respective values deducted from the Ownership maintained on the Plugin. The injector will only inject the owner-info subchart if it is not already present, ensuring that values are always set from the Plugin Ownership.

Q: What are the benefits of using the `owner-label-injector`?

A: The benefits of using the owner-label-injector include:

Improved efficiency: The owner-label-injector automates the process of injecting labels into helm charts, reducing the time and effort required to manage resources.
Reduced errors: The owner-label-injector ensures that labels are correctly injected into helm charts, reducing the risk of errors and inconsistencies.
Enhanced system reliability: The owner-label-injector provides a reliable and consistent way to inject labels into helm charts, ensuring that resources are properly labeled and managed.

Q: How do I configure the `owner-label-injector`?

A: To configure the owner-label-injector, you will need to follow these steps:

Configure the owner-label-injector: You will need to configure the owner-label-injector to run on the target Cluster.
Inject Ownership references: The Greenhouse controller will inject the Ownership references to the underlying helm chart of the Plugin on deployment.
Inject owner-info subchart: The owner-label-injector will inject the owner-info subchart into the helm manifest deployed via the Plugin.

Q: What are the acceptance criteria for this feature?

A: The acceptance criteria for this feature include:

The helm manifest deployed via the Plugin contains the owner-info subchart with the respective values deducted from the Ownership maintained on the Plugin.
We only inject the owner-info subchart if it is not already present. Values are always set from the Plugin Ownership.
Behavior is validated via tests.

Q: How do I test and validate this feature?

A: To test and validate this feature, you will need to follow these steps:

Helm manifest validation: You will need to validate that the helm manifest deployed via the Plugin contains the owner-info subchart with the respective values deducted from the Ownership maintained on the Plugin.
Label injection validation: You will need to validate that the owner-label-injector correctly injects the greenhouse.sap/support-group label on all running resources on the remote Cluster.
Behavior validation: You will need to validate that the behavior of the owner-label-injector is as expected, ensuring that values are always set from the Plugin Ownership.

Q: What are the future plans for this feature?

A: The future plans for this feature include:

Expanding the feature: We plan to expand this feature to support additional labeling scenarios, such as injecting labels based on resource type or namespace.
Integrating with other tools: We plan to integrate this feature with other cloud-native tools and platforms to further enhance its functionality.

Conclusion

In conclusion, the owner-label-injector provided by the 704 feature is a powerful tool that can help improve the efficiency, reliability, and consistency of resource management in cloud-native applications. By injecting the owner-info subchart into the helm manifest deployed via the Plugin, we can ensure that resources are properly labeled and managed. We hope that this Q&A article has provided you with a better understanding of this feature and its benefits.