Cloud Native Weekly: Istio 1.26 Release

Open Source project recommendations

Kubetail

Kubetail is an open-source real-time log viewing tool for Kubernetes (K8s), offering both a command-line interface (CLI) and a web dashboard. It allows developers and operations teams to quickly aggregate and filter logs from multiple Pods. It supports filtering logs by workload types (such as Deployment, CronJob, StatefulSet), time range, node attributes, and more, with the ability to search using grep keywords. Kubetail uses the K8s API to fetch log data, ensuring that data remains within the cluster by default, ensuring privacy and security.

Prowler

Prowler is an open-source cloud security tool designed to help users assess and strengthen the security of multi-cloud environments, including AWS, Azure, Google Cloud, Kubernetes, and Microsoft 365. It supports both command-line interface (CLI) and graphical web applications (Prowler App) and can perform security audits, continuous monitoring, compliance checks, system hardening, incident response, and forensic preparation tasks.

Devtron

Devtron is an open-source Kubernetes-native CI/CD platform designed to simplify and automate the building, deployment, and monitoring of applications. It provides an integrated interface to easily manage the application lifecycle on K8s clusters. Devtron combines multiple tools, such as Helm, ArgoCD, and Prometheus, offering a one-stop solution for continuous integration and continuous delivery (CI/CD), supporting automation from code commits to production deployment.

LocalAI

LocalAI is an open-source project aimed at providing a lightweight and easy-to-deploy AI inference engine, allowing users to run large language models (such as LLaMA, GPT, etc.) on local servers without relying on cloud APIs. It supports deployment via Docker containers, K8s, and other methods and optimizes local inference for AI models, offering efficient performance and flexible configuration. LocalAI simplifies the self-hosting of AI models, helping developers achieve faster and more cost-effective inference services while ensuring data privacy. It also supports multiple AI frameworks and model formats, providing user-friendly interfaces and good extensibility.

Technical recommendations

K8s Precision Recovery Guide: Efficient Repair Strategies for etcd Snapshots

This article provides best practices for etcd snapshot recovery for K8s operators, emphasizing the importance of maintaining data consistency and system stability during recovery. By adopting a “precision recovery” approach and robust testing frameworks, operators can more effectively handle disaster recovery scenarios related to etcd, ensuring high availability and reliability of K8s clusters.

Kubernetes v1.33: Indexed Job Support for Per-Index Backoff Limits, Enhancing Task Fault Tolerance

In K8s v1.33, the “Backoff Limit Per Index” feature for Indexed Jobs officially reaches stable (GA) status. This feature allows developers to set the maximum retry limit (.spec.backoffLimitPerIndex) for each index in an indexed Job, preventing the failure of a single index from causing the entire Job to terminate prematurely. Additionally, the new .spec.maxFailedIndexes field limits the maximum number of failed indexes, and when exceeded, the Job controller terminates all running Pods and marks the Job as failed. These improvements make Job execution more flexible and efficient, especially in scenarios requiring parallel processing of multiple tasks with fine-grained control over failure retry strategies, such as large-scale data processing or automated testing.

What’s new in cloud native

Istio 1.26 Released

Istio 1.26 was released on May 8, 2025, with several important updates and enhancements. The version supports Kubernetes 1.29 to 1.32 and plans to support 1.33 in future releases. Key updates include: customization of Service and Deployment resources created by the Gateway API through ConfigMap, support for automatic generation of HorizontalPodAutoscaler and PodDisruptionBudget; introduction of TCPRoute support in ambient mode for TCP traffic forwarding; and new support for the Kubernetes experimental ClusterTrustBundle resource to simplify certificate and trust root management.

Knative v1.18 Released

Knative v1.18 introduces several key updates to enhance service deployment flexibility and observability. The Serving module now supports HTTP/1 full-duplex communication, allowing developers to enable this feature via annotations to meet real-time two-way communication needs. Additionally, the system’s default behavior no longer reserves /tmp and /var/log paths, improving container compatibility and security. In the Eventing module, the stability and performance of Kafka Broker and RabbitMQ Broker components have been optimized, improving event handling reliability. The Knative CLI tool has also been enhanced with new parameters, such as --scale-activation, to simplify the configuration of service auto-scaling. Overall, version 1.18 provides more powerful functionality and greater operational convenience for developers.

About KubeSphere

KubeSphere is an open source container platform built on top Kubernetes with applications at its core. It provides full-stack IT automated operation and streamlined DevOps workflows.

KubeSphere has been adopted by thousands of enterprises across the globe, such as Aqara, Sina, Benlai, China Taiping, Huaxia Bank, Sinopharm, WeBank, Geko Cloud, VNG Corporation and Radore. KubeSphere offers wizard interfaces and various enterprise-grade features for operation and maintenance, including Kubernetes resource management, DevOps (CI/CD), application lifecycle management, service mesh, multi-tenant management, monitoring, logging, alerting, notification, storage and network management, and GPU support. With KubeSphere, enterprises are able to quickly establish a strong and feature-rich container platform.

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