Reza Radmehr ☁

KubeVirt extends Kubernetes by adding additional virtualization resource types (especially the VM type) through CRDs. By using this mechanism, the Kubernetes API can be used to manage these VM resources alongside all other resources Kubernetes provides. More: https://kubevirt.io

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Embracing sustainability: managing Kubernetes clusters with innovation and responsibility In the Nederlandse Kubernetes Podcast, Maarten and Jurg shared how they use open-source components and the Cluster API to manage Kubernetes clusters efficiently. They leverage tools like KubeVirt to manage virtual machines, allowing them to run Kubernetes within Kubernetes and maximizing resource utilization and flexibility. A key strategy was using refurbished hardware. By extending the lifespan of existing hardware and integrating it into its infrastructure, Aknostic reduces costs and minimizes environmental impact. This approach aligns with its commitment to sustainability, proving that high performance and sustainability practices can go hand in hand. The always-returning discussion with this topic is the alleged increased carbon efficiency of new model hardware (chips in particular). The point is that stuff's lifespan is essential. Refurbished can mean reusing the chassis and retrofitting it with later generations of chips, memory, and disks. However, this debate will ultimately be settled with full transparency (embodied emissions) and carbon reporting. 💡 In more everyday terms, perhaps old shit running the Nordics is better than the latest and greatest in a dense urban environment like Amsterdam. Share your thoughts on balancing IT infrastructure performance, cost, and sustainability. How do you integrate sustainability into your tech practices? #Sustainability #Kubernetes #OpenSourceInnovation

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This article explores the Kubernetes API groups and versions, highlighting the role of core and named groups in cluster management. More: https://lnkd.in/dXXHaUU6

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🎙️Confidential Containers Explained! 🎙️ Static Environments: Many businesses still run legacy VM applications with static sets—just one database and one application. They might not need the dynamic nature of Kubernetes. Dynamic Needs: For those leveraging the power of Kubernetes and containerization, confidential containers come into play, offering enhanced security and flexibility. 🤔 What exactly are confidential containers? 🖥️ Why some organizations still rely on legacy VM applications? 🌐 When and why should you consider transitioning to Kubernetes and containers? We spoke to ⚓ Marko Zvonko Kaiser, Principal Systems Software Engineer NVIDIA about the world of Kubernetes, Confidential containers and computing. If these topics interest you then this is the episode for you! #kubernetesecurity #cloudnativesecurity #cloudsecurity

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🚀 Is your Kubernetes cluster giving you DNS headaches? Join Zdenko Vrabel's talk for a deep dive into troubleshooting DNS woes in Kubernetes. This session explores: - Why DNS is like the hot water in your house (you only notice it when it's broken!) - DNS as a service discovery mechanism in Kubernetes - Real-world scenarios where Kubernetes DNS goes awry - Essential DNS monitoring techniques Don't let DNS mysteries slow you down! Zdenko will equip you with the knowledge to diagnose and fix common DNS issues in your Kubernetes environment. 📆June 6-7📍Faculty of Information Technology CTU in Prague 👉Registration -> https://lnkd.in/e2Z2EfAH #kubernetes #dns #troubleshooting #kcdczsk2024

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Title: Why Terraform is the Go-To Tool for Infrastructure as Code (IaC) One of Terraform’s biggest strengths is its platform-agnostic nature. Unlike many tools that focus on specific providers, Terraform works across various cloud platforms, such as AWS, Azure, Google Cloud, and even on-premise environments. This flexibility allows organizations to manage a multi-cloud infrastructure with a single tool, reducing complexity and streamlining operations. Declarative Language: Terraform uses HashiCorp Configuration Language (HCL), a declarative language designed to simplify infrastructure management. Instead of defining each step required to provision resources, users define the desired state of their infrastructure. Terraform then handles the process of creating, updating, or destroying resources to match that state. This approach reduces human error and simplifies the workflow, making infrastructure management more predictable and reliable. State Management: Terraform keeps track of the state of the infrastructure it manages through a state file. This allows Terraform to understand the current setup and detect any changes that need to be made. By managing the state, Terraform ensures that only necessary updates are applied, minimizing disruptions. This feature is particularly useful in larger environments where changes need to be applied incrementally without redeploying everything. Modular and Reusable: Terraform's support for modules is another reason it's widely adopted. Users can create reusable modules to standardize components of their infrastructure. This modularity encourages best practices, as teams can re-use tested and proven modules across multiple projects, reducing the risk of errors and promoting consistency. Community and Extensibility: As an open-source tool, Terraform benefits from a vibrant and active community. Hundreds of providers have been developed for managing everything from cloud services to networking and monitoring tools. Moreover, organizations can write custom providers and modules to meet their specific needs, making Terraform highly extensible. The support from the open-source community means there’s constant innovation and improvements to the tool, ensuring it stays ahead of the curve. Conclusion: Terraform’s platform neutrality, declarative approach, robust state management, and modular structure have made it the preferred choice for organizations looking to adopt Infrastructure as Code. Whether you're managing a single cloud or a multi-cloud setup, Terraform provides the flexibility, scalability, and reliability needed to manage infrastructure efficiently. Combined with a strong community and extensive provider support, it's no surprise that Terraform has become the go-to tool for modern infrastructure management.

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Want Kubernetes but not the complexity? Join our Dec 10 webinar to explore #k0s — a simpler, flexible solution with minimal dependencies and super easy setup. And learn how #k0smotron enables Kubernetes-as-a-Service. https://bit.ly/498IG48

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Attacking Kubernetes -------------------------------------------------------------------------------- Kubernetes is a powerful open-source platform for managing containerized applications across clusters of hosts. However, its complexity and distributed nature introduce various security challenges and potential vulnerabilities. Understanding the common attack vectors and methods used to exploit Kubernetes can help in better securing your deployments. Common Attack Vectors in Kubernetes ✍ Exposed Kubernetes Dashboard ✍ Misconfigured Access Controls ✍ Container Vulnerabilities ✍ Insecure Network Policies ✍ Compromised Nodes ✍ Improper Secret Management -------------------------------------------------------------------------------------------- Find tons of manuals, guides and cheatsheets on #OpenProdkt WikiPages WIKI https://lnkd.in/dBjPv9EX ------------------------------------------------------------------------------------------ Register and buy annual access with 50% OFF only this month. PAID subscriptions helps us improving WikiPages availability, performance and brings new content faster with high quality

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🚀 Ready to upgrade your Terraform provider? In this new tutorial, I demonstrate how to upgrade your azurerm Terraform provider from v2.x or v3.x to v4.0.0, without disrupting your production environment! ⚙️ What you’ll learn: 🔄 Handling deprecated resources 🛠️ Why the moved block and terraform state aren’t the right solution 💡 How to use import and removed blocks to safely replace deprecated resources 🔍 Using terraform console to find key resource details for imports ✅ How to manage resource dependencies and resolve order-of-operations issues If you’re looking for a step-by-step guide on managing upgrades in Terraform, this one’s for you! Check out the full video here https://lnkd.in/ekw_-hTG 🎥 #Terraform #DevOps #Azure #CloudEngineering

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Mirantis is adding a dynamic scheduler to their OpenStack implementation. The goal is to better utilize infrastructure resources in #Kubernetes by letting the scheduling algorithm sort everything out. The feature is seen as a way to bring the popular VMware Dynamic Resource Scheduler (#DRS) functionality into OpenStack. This isn't the first time someone has tried but Mirantis is taking a different look it by using kernel live migration tooling. #Rundown

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Excellent article on Azure DevOps regarding SSH-RSA Deprecation by Ivan Porta in Anton Babenko ☁🇺🇦 weekly.tf! Learn how this affects using Azure DevOps Git repositories as private module libraries in your Terraform code! 👉 https://lnkd.in/erwvHPNi https://www.weekly.tf

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Is the Kubernetes Dashboard Holding You Back? Time to Consider 5 Powerful Alternatives 🤔 Kubernetes is scaling and managing applications, but let's face it: the default Kubernetes dashboard can be a bit of a bottleneck when you're dealing with complex, multi-cluster environments. 🏗 Let's be honest, The default Kubernetes dashboard is great for the basics, but it falls short when you need: 🌎 A unified view of your entire Kubernetes landscape (seriously, who wants to jump between dashboards?) 📈 Advanced analytics to really understand what's going on and optimize your resources. 🔐 A user-friendly way to set up robust RBAC policies. 🧰 More than just basic cluster visualization when you need to troubleshoot those annoying issues. If you're nodding your head in agreement, it's time to consider some powerful alternatives. 😎 🔗 Check out the blog here: https://lnkd.in/g8sq_f2v #Kubernetes #DevOps #CloudNative #Dashboard #OpenSource #Devtron #OpenLens #Skooner #Headlamp #Octant #deployment #cluters #sre

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💡 Why is Network Observability Challenging in Kubernetes? Kubernetes’ dynamic nature creates complex network connections and policy impacts. General-purpose tools often fall short in visualizing real-time traffic and policy mapping. Here's how Calico’s Kubernetes-native approach solves this: --Real-time traffic and network policy mapping --Enriched Kubernetes-specific metadata --No extra configuration needed https://lnkd.in/g8rxkP3V #Kubernetes #Observability #Calico #CloudNative Dhiraj Sehgal

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In Kubernetes, volumes serve as directories accessible to all pod containers, facilitating data sharing and persistence beyond container lifetimes. Let's delve into the types and best practices. 📮 Types of Volumes: 📂 EmptyDir: - Starts as an empty directory. - Perfect for sharing files between containers in the same pod. - Data lost when the pod is deleted. 📂 HostPath: - Mounts a directory from the host node’s filesystem into the pod. - Useful for accessing host files or directories. - Data persists even if the pod is deleted. 📂 Persistent Volume (PV): - Cluster-wide resource. - Stores data beyond a pod's lifetime. - Requires provisioning by a storage resource. - Provides an abstraction layer between storage and applications. 📂 Storage Classes: - Defines properties for dynamically provisioned persistent volumes. - Allows dynamic provisioning based on workload requirements. 📂 Persistent Volume Claim (PVC): - User or pod request for a specific amount of storage. - Binds to a matching persistent volume. Adds a layer of abstraction between pods and storage infrastructure. 📮 Best Practices: - Size PVs and PVCs according to data requirements. - Use subpaths cautiously; document clearly. - Implement monitoring, check logs for issues. - Employ pod affinity rules for scheduling influence. 📮 Additional Considerations: 📂 CSI (Container Storage Interface): - Explore CSI (standardized interface for storage plugins) for interfacing with external storage systems. 📂 Volume Snapshotting: - Investigate solutions for creating point-in-time copies of volumes. - Useful for data protection and recovery. 📂 Cross-Cluster Replication: - For multi-cluster deployments, replicate volumes across clusters, for data availability in case of cluster failures. 📂 Caching Mechanisms: - Implement caching for enhanced data access, especially with large datasets. In conclusion, kubernetes volumes are integral to effective data management within a cluster. By adhering to best practices and considering additional aspects like monitoring, backup strategies, and dynamic provisioning, one can ensure the efficient and reliable use of volumes in a kubernetes environment. Streamline your CI/CD pipeline with Codegiant, the comprehensive DevSecOps platform designed to enhance your software development and deployment processes. With robust observability features, Codegiant simplifies Kubernetes monitoring, and offers an in-built Grafana dashboard for real-time insights. Say goodbye to managing multiple costly stacks and hello to improved efficiency, faster delivery, and reduced errors. Optimize your workflows and elevate your team's performance both mentally and financially with Codegiant. https://hubs.li/Q02zv4BS0 #kubernetes #cloud #devops #aws #startuplifestyle

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#Terraform #Commands Mastering Terraform commands is key to effective infrastructure management. These commands enable you to automate tasks, plan modifications, and apply changes to your infrastructure with confidence. Here's what you can achieve with Terraform: Clean up resources using terraform destroy, ensuring efficient removal when no longer needed. Review planned changes with terraform plan, allowing for thorough validation before implementation. Keep configurations updated with terraform get, ensuring modules are synchronized. Manage infrastructure state using terraform state, giving you full control over the current setup. Debug and manage resources with terraform show and terraform output, providing key insights into configurations. Migrate existing resources to Terraform control with terraform import, simplifying adoption. Separate environments efficiently with terraform workspace, ensuring isolation and better organization. Handle resource lifecycle using terraform taint and terraform untaint to mark or unmark resources for recreation. Set up your environment with terraform init, preparing your directory for smooth operation. Understanding and applying these commands enhances your ability to manage infrastructure as code, streamlines deployments, and minimizes risks, making Terraform an indispensable tool in modern DevOps workflows. Unlock your Cloud & DevOps potential with Abhijit Sagare —follow for simplified guides and expert tips! 🔧🌟 #cloud #DevOps #Terraform

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