Developer Tools

Problem: The client reported an issue with the hard limit of 1MB for ConfigMap storage in Helm, which was causing problems with their deployment process. This limitation hindered their ability to store large configurations, necessitating a solution that could accommodate their growing data needs. Solution: To address the issue, the expert initiated an in-depth investigation. […]

Problem: The client is using kube-prometheus-stack version 44.2.1 as their monitoring solution, and Twistlock scans have identified vulnerabilities in various packages including github.com/docker/distribution (CVE-2023-2253), golang.org/x/net (CVE-2022-41723), github.com/emicklei/go-restful/v3, and Go language with CVEs such as CVE-2021-29923, CVE-2021-38297, CVE-2021-39293, CVE-2021-41771, CVE-2021-41772, CVE-2021-44716, CVE-2022-23772, CVE-2022-23773, CVE-2022-23806, CVE-2022-24675, CVE-2022-24921, CVE-2022-27664, CVE-2022-28131, CVE-2022-28327, CVE-2022-2879, CVE-2022-2880, CVE-2022-30580, CVE-2022-30630, CVE-2022-30631, CVE-2022-30632, CVE-2022-30633, […]

Problem: The client requested a solution to automate the update process for the Helm/Kubernetes compatibility matrix. It’s crucial to address this issue because relying on manual updates causes delays in the adoption of Helm and results in the use of outdated Helm versions. The lack of automation results in incomplete release notes and repeated postponements, […]

Problem: The client reported encountering a recurring issue when attempting to execute scripts within a Docker container. The client consistently received an error code 137, indicating an Out of Memory (OOM) condition. Despite attempts to resolve the issue by restarting and reinstalling Docker, the problem persisted. Process: Gathering System Information: The Docker version being used; […]

Problem: On July 8th, 2024, all Docker containers on all nodes within a Docker Swarm cluster suddenly crashed. The cluster consisted of 13 nodes: 1 master, 2 reachable, and 10 worker nodes. The initial logs indicated a problem with the RAFT consensus algorithm attempting and failing to elect a leader multiple times. Process: Upon receiving […]

Problem: The Jenkins server experienced significant performance issues characterized by excessive thread creation and inadequate resource allocation. Symptoms included system freezes, failures to execute commands, and frequent application errors related to memory and resource limits. Process: Initial Investigation: Error Identification: Logs and system monitoring revealed critical errors related to insufficient memory and resource limits. Key […]

Problem: Argo CD, version v2.10.4, deployed in a high-load environment with approximately 480 applications, encountered severe performance issues. Specifically, the refresh operations were inconsistent, sometimes taking up to 16 minutes, impacting deployment efficiency and causing significant CPU consumption by the controller pod. Despite efforts to adjust configuration parameters based on Argo CD documentation, the issue […]

Problem: After upgrading Jenkins to LTS Version 2.440.1 and updating installed plugins, the client encountered an issue with active choice parameters on the “build with parameters” page. Specifically, the page is waiting for full rendering before executing scripts within the active choice parameters, notably those involving HTTP requests. This delay has caused certain features to […]

Problem: A client faced difficulties downloading images from their local Nexus repository using Podman. Despite several troubleshooting attempts, including adding the registry to insecure registries and adding the certificate locally, the issue persisted. The specific error encountered was related to certificate validation. Process: Initial Troubleshooting: The client added the Nexus registry to the list of […]