Daring Bit Assembly, Inc’s Post

Have you ever wondered what the difference is between Containers and Virtual Machines? And what the potential applications of Docker and Kubernetes are? You can find answers to these questions and many more in Merve G. newest blog post: Exploring the World of Containers: Docker, Kubernetes and Beyond https://lnkd.in/g325qTUc #kubernetes #docker #containers #virutalmachines

As Kubernetes users, we've all been there - defining memory limits and requests in pod specs, expecting the cluster to enforce them, only to find our pods using way more memory than "allowed". This has been a source of frustration for many. After all - what's the point of defining limits if the system doesn't actually limit resource usage? 👉Why This is Happening The reason this occurs is that by default, Kubernetes uses cgroups v1 for resource management. And as explained in the Kubernetes Enhancement Proposal for the MemoryQoS alpha feature: "In cgroup v1, and prior to this feature, the container runtime never took into account and effectively ignored spec.containers[].resources.requests["memory"]. This meant you could set a request, but the runtime would not try to guarantee the requested memory was available to the container." So our memory requests were just polite suggestions that the container runtimes chose to ignore! Not exactly what we expected. 👉Cgroups v2 and MemoryQoS to the Rescue The good news is that with the emergence of cgroups v2, there is now a way to truly enforce memory requests and limits in Kubernetes clusters. This is achieved through a new alpha feature called MemoryQoS. By enabling the MemoryQoS feature gate in the kubelet, the node can configure cgroups v2 properly to reserve requested memory and throttle usage approaching the limits. And with new OSes like Bottlerocket using cgroups v2 by default, it's becoming easier to take advantage of these capabilities. Of course, being an alpha feature, there are still some kinks to be worked out in terms of enabling MemoryQoS across cluster nodes. But the foundations are there. So while memory limits may still be a bit "fuzzy" for now, the future looks promising for honoring user defined resource constraints and delivering the expected quality of service. What do you think? Have you run into issues with memory limits in Kubernetes? 👉 https://hubs.la/Q02s3q-h0 #kubernetes #devops #devopstools #k8s #bottlerocket #EKS #AWS #SRE

Kubernetes has revolutionised the way we deploy and operate software over the last 10 years!

Today is #day26 as part #cka program. In this blog, we will explore Understanding Resource Requirements in Kubernetes with practical example to demonstrate their usage. TABLE OF CONTENTS 🗼Introduction 🗼Resource Requests 🗼Resource Limits 🗼Exceeded Limits 🗼Conclusion Special Thanks for Inspiring me throughout my journey: Prasad Suman Mohan, Shubham Londhe, Savinder Puri Thank you for your continued support, and let's embark on this CKA journey together! 🌐📚💡 #limits #requests #pods #LearnInPublic #authentication #security #kubernetes #architecture #docker #CKA #Kubernetes #ApplicationDevelopment #BlogSeries #LearningJourney #CloudNative #devops #cloud #learning #experience #management #connections #developer #security #power #engineers #techblog #kubernetesobjects

LXC vs. Docker: Which One Should You Use? Explore the key differences between Docker and LXC, including use cases and technical requirements, to determine which containerization technology best suits your project needs. Read mode on following blog post!

LXC vs. Docker: Which One Should You Use? Explore the key differences between Docker and LXC, including use cases and technical requirements, to determine which containerization technology best suits your project needs. Read mode on following blog post!

LXC vs. Docker: Which One Should You Use? Explore the key differences between Docker and LXC, including use cases and technical requirements, to determine which containerization technology best suits your project needs. Read mode on following blog post!

LXC vs. Docker: Which One Should You Use? Explore the key differences between Docker and LXC, including use cases and technical requirements, to determine which containerization technology best suits your project needs. Read mode on following blog post!

LXC vs. Docker: Which One Should You Use? Explore the key differences between Docker and LXC, including use cases and technical requirements, to determine which containerization technology best suits your project needs. Read mode on following blog post!

How to set up Karpenter on EKS 👇 ✅ Ensure you have a proper IAM Role for Karpenter ✅ Configure the proper NodePools ✅ Have a viable cluster I break down the process at the link below. #kubernetes #devops #platformengineering