Application Development

Problem: A three-site RabbitMQ cluster experienced frequent incidents where a single site would become “stuck” and that condition then caused the entire three-site cluster to block. Symptoms reported included intermittent node unresponsiveness, client operations timing out or hanging, and cluster-wide stalls that required manual intervention to recover. The environment was a geographically distributed, multi-site RabbitMQ […]

Problem: A production security scan flagged CVE-2026-42945 in the Kubernetes ingress controller image. The customer reported use of ingress-nginx/controller:v1.12.1 and also verified the issue exists in ingress-nginx/controller:v1.15.1. The scan result and customer concern described this CVE as a high-severity security exposure affecting live traffic handling in production clusters. The deployment used upstream community controller images […]

Problem: The customer reported that deployed container images nginx:1.31 and nginx:1.31.2 contained a high-severity vulnerability: CVE-2026-55200 (libssh2) with a reported CVSS score of 8.3. Their inventory showed the images were based on Debian 13 (trixie) and the finding originated from a packaged libssh2 version present inside the image. No production outage was reported; the request […]

Problem: An application gateway using the Open Enterprise SDK for Apache Kafka reported that Notification ID 8 was accepted and enqueued by the gateway but never showed downstream dispatch evidence for two subscribers. Gateway instrumentation recorded REST_RECEIVE and SEDA_ENQUEUE events for those transactions, while downstream stages (SEDA_DEQUEUE, HTTP_SEND, EDR_WRITE) were absent in the available exports. […]

Problem: The client, preparing to launch Argo Workflows v3.6.0 for production, faced a critical RBAC issue when enabling Single Sign-On (SSO) with Azure Active Directory (Entra ID) via Dex. When users attempted to log in through SSO, Argo Workflows returned the error: unknown name groups This prevented role-based authorization through group membership, effectively blocking all […]

Problem: The challenge arises when attempting to upgrade from Spring Boot (SB) version 2.7.x to SB 3.1.x due to compatibility issues with OpenJPA. No compatible version of OpenJPA has been found for Spring Boot 3.1.x. Upgrading to Spring Boot 3.1.x presents hurdles in terms of OpenJPA compatibility. The current version of OpenJPA lacks support for […]

Problem: The client encountered an error during the installation of a Helm chart, specifically related to the NGINX admission controller. The installation failed due to a validation error in NGINX Ingress, indicating a synchronization issue with the ingress event handlers. This problem arose when multiple ingresses used the same secret, causing complications with secret refreshing […]