Rob Allen

The final article in the series around the new short lived credentials feature of Quay focus on simplifying the management of credentials when running on Kubernetes and OpenShift using the External Secrets Operator. Accessing content in Quay securely has never been easier! #security #containers #quay #RedHat #kubernetes #OpenShift #keyless https://lnkd.in/ecMw_6Ur

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🚀 Setting Up a Highly Available PostgreSQL 17 Cluster with Patroni! High availability (HA) is critical for any production database, ensuring minimal downtime and seamless failover. I recently set up a PostgreSQL 17 HA cluster using Patroni on CentOS 8, and I wanted to share a few key takeaways: ✅ Cluster Components: Patroni + Etcd + HAProxy ✅ Automatic Failover & Replication: Ensuring minimal service disruption ✅ Streaming Replication: Keeping replicas in sync with the primary ✅ Dynamic Leader Election: Ensuring a healthy primary node at all times #PostgreSQL #Patroni #HighAvailability #DevOps #DatabaseEngineering #OpenSource #SysAdmin

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📣 There are 2 new EC2 instances types available now in the Asia Pacific (Malaysia) Region. 📣   1.    EC2 C8g, powered by AWS Graviton4 processors, delivering up to 30% better price performance compared to Graviton3 based instances, ideal for compute intensive workloads. 🚀 2.    EC2 I7ie, designed for large storage I/O intensive workloads, powered by 5th generation Intel Xeon Scalable Processors, with up to 40% better compute performance and 20% better price performance over existing I3en instances. 🔥   https://lnkd.in/gKZu6jKf   https://lnkd.in/gnap8TZc   More region updates to follow. | Peter Murray | Hussein Mohd Ali | Hafiz Hassan | Kevin Kwan | Mallika Priyadarshini | Saumil Shah | Trisha Heah | Wendy Kho | Ghazanfar Iqbal ᵃ⤻ᶻ | Rajvinder Singh | Christopher Thong | Giuseppe Marazzotta | Kelly Soh | Chai Davis | Saurabh Onker | Matthew Khaw Kien Choy |

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Learn Kubernetes Weekly 132 hot off the press, and those are my top picks: 🤯 Istio-Proxy Chaos in the Middle of a Snowy Morning — Learn how an Istio-proxy OOMKilled error caused a production service outage due to excessive memory from mesh-wide configurations. The solution was to reduce memory use with namespace isolation and resource annotations. 📉 How did I reduce a $2,000/day non-prod (Ephemeral) AWS Network cost without an outage Ashish — This post shows how migrating a non-prod EKS workload from a multi-AZ to a single-AZ architecture eliminated cross-AZ traffic and reduced AWS network costs by $2K/day. 📦 Linux container from Scratch Michal — This article guides you through using terminal commands to build a Linux container from the ground up. If you prefer to read online (or receive it next week in your inbox), you can do so here: https://lnkd.in/gQy_-2Ry

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𝗔𝗰𝗰𝗲𝘀𝘀𝗶𝗻𝗴 𝗔𝗪𝗦 𝗘𝗹𝗮𝘀𝘁𝗶𝗖𝗮𝗰𝗵𝗲 𝗥𝗲𝗱𝗶𝘀 𝗪𝗶𝘁𝗵𝗼𝘂𝘁 𝗩𝗣𝗡 𝗼𝗿 𝗗𝗶𝗿𝗲𝗰𝘁 𝗖𝗼𝗻𝗻𝗲𝗰𝘁 Bastion hosts aren't ideal for accessing Redis, especially with CLI tools or multiple nodes, and VPN or Direct Connect can be too expensive for dev and test environments. We used a NAT EC2 instance with SSH and iptables port forwarding (6500→6379) to securely access Redis nodes in a private subnet, without exposing public endpoints. A practical solution for debugging Redis in lean setups. Blog: https://lnkd.in/gq9GRiKe #AWS #Redis #NAT #VPC #CloudNetworking

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35x Slower Queries? Here's How We Solved a Critical PostgreSQL JDBC Issue My new Medium blog about a fascinating PostgreSQL performance mystery solved. https://lnkd.in/ggZigZkb 👉 Discovered: Queries running 35x slower through JDBC compared to psql - 2500ms vs 70ms! The culprit? How PostgreSQL handles prepared statements and execution plans. While JDBC was using generic plans that couldn't optimize for actual parameter values, direct psql execution benefited from custom plans. Investigation revealed: 1. The issue wasn't database configuration or query complexity 2. PostgreSQL's plan_cache_mode setting was key to the solution 3. Different JDBC driver versions handled prepared statements differently 4. Simple parameter adjustments produced dramatic performance improvements If you are working with PostgreSQL, this article provides practical insights on: - Diagnosing similar performance discrepancies - Using PostgreSQL's execution plan analysis tools - When prepared statements might hurt rather than help - Optimizing JDBC connection parameters Check out the full article for the complete investigation and solution! https://lnkd.in/ggZigZkb #PostgreSQL #DatabasePerformance #JDBC #SQLOptimization

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You don’t need VMware. You don’t need OpenStack. You don’t need Nutanix. You don’t even need Proxmox. All you really need is Kubernetes... yes just Kubernetes! Here’s why: Kubernetes isn’t just about containers anymore. With projects like KubeVirt, you can manage both VMs and containers under one universal, API-driven platform. It’s becoming the control plane that ties infrastructure together. But… let’s be real: 👉 VMware still makes sense in enterprises heavily invested in traditional VMs. 👉 OpenStack still powers telcos and massive private clouds with NFV needs. 👉 Nutanix and Proxmox still serve organizations looking for simplicity or cost-effective virtualization. The shift, however, is undeniable: Kubernetes is slowly eating into all of these domains. The real debate: ⚡ Are VMware, OpenStack, and others here to stay as specialized platforms or are they just transition technologies until Kubernetes rules them all? What do you think? I want to learn so, if you have any opinion please comment! #Kubernetes #CloudNative #PlatformEngineering #OpenSource #MultiTenancy #Stakater

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