19.04.2024 Problem:
The client encountered an error while updating the Prometheus adapter in the Azure environment, specifically related to the prometheus-adapter-configmap. The error stemmed from the generated configmap exceeding the Kubernetes limit, preventing successful deployment. The client sought guidance on efficiently splitting the configuration for deployment across multiple namespaces.
Solution:
Step 1: Environment Preparation: Experts established a testing environment for comprehensive issue analysis.
Step 2: Identification of Solution: Experts proposed a solution involving adding an extra config map to Prometheus adapter configurations. Two separate maps were to be created and merged in an Init container, yielding a consolidated YAML file.
Step 3: Testing and Sharing: Collaborative testing in a controlled environment, with shared deployment and configuration files for thorough examination.
Step 4: File preparation: Experts prepared and provided the files to deploy the prometheus adapter helm chart such as api-service.yaml, cluster-role files, config-map.yaml, deployment.yaml, network-policy.yaml and service.yaml.
Step 5: Caution in Merging: Emphasis on careful merging of configurations to ensure seamless deployment.
Step 6: Functionality of Prometheus Adaptor: Expert affirmed that changes wouldn’t impact existing functionality, stressing the importance of careful merging.
Conclusion:
To address the Prometheus Adaptor issue, the following steps were performed:
- Investigated the provided logs and files.
- Established a testing prometheus-adapter environment with several configs for testing.
- Based on the results provided the files to deploy the prometheus adapter helm chart.
- Emphasized that separating a huge conflict map into smaller ones would not affect anything, but merging should be done carefully during the process.
This comprehensive approach led to the successful resolution of the Prometheus Adaptor issue.