Posts in category kubernetes - page 9
Weave Cloud Outage 28th Feb Post-Mortem
Weave Cloud is our service for deploying, exploring, and monitoring microservice-based applications. At 17:37 GMT on 28th Feb, Weave Cloud suffered an outage for over 4 hours. The expectation of availablilty on a service like Weave Cloud...
Kubernetes Beginner's Guide: Learning the basics in an hour
I’m new to Kubernetes. So when I saw on Meetup that Weaveworks was hosting a User Group session introducing the concepts of deploying containers and microservices to Kubernetes, I figured it was worth checking out. I’m glad I did! In just...
Running Consul on Kubernetes and Monitoring it With Prometheus
We run a couple of replicated Consul services for Weave Cloud: one acts as a coordinator for the distributed WebSocket router backing Scope’s terminals feature, and the other for storing the state of Cortex’s consistent hash ring. This...
Aggregating Pod resource (CPU, memory) usage by arbitrary labels with Prometheus
How would you answer the questions like “how much CPU is my service consuming?” using Prometheus and Kubernetes? In this quick post, I’ll show you how…First we need to think about where to get the information from. cAdvisor (from Google)...
Turtles all the way down: HTTP over gRPC
I recently introduced a new mechanism for AuthFE (out authenticating reverse-proxy frontend for Weave Cloud) to forward requests to downstream services: HTTP over gRPC. This blog post covers why on earth I did this, and why you might want...
Provisioning and Lifecycle of a Production Ready Kubernetes Cluster
At Weaveworks we run Weave Cloud (our monitoring & visualization service for Cloud Native applications) on a Kubernetes cluster in AWS. In this post I’ll discuss the methods we use to provision and operate the cluster through the...
Kubernetes Raspberry Pi Cluster: Possible with Weave Net
Sometimes life takes a strange turn. Me writing this blog post for example. Two years ago I was looking for a new platform for building e-services for a former employer. The current solution was nothing more than a couple of web servers....
Using Weave Net for NetworkPolicy in Kubernetes
FOSDEM is a free conference for Open Source developers, held each year in Brussels. In the Lightning Talk stream I gave a whistle-stop tour of the motivation, definition and implementation of Kubernetes NetworkPolicy using Weave Net. In...
Troubleshooting Containers in Kubernetes With Weave Scope & Weave Cloud
Weave Scope is an open-source container visualization and troubleshooting project from Weaveworks that gives you a top-down view into your application and infrastructure, showing the dependencies and communication links between containers....
What is Cloud Native and why should I care
Alexis Richardson, founder and CEO of Weaveworks, did a recent talk at Software Circus about “What Cloud Native is and why should I care.”Cloud Native is open source Cloud computing for applications, a trusted tool kit for modern...
Cloud Provider Options for a Container-Friendly Environment
The advent Docker and containers, has simplified packaging, deploying and supporting applications. However, with this advancement come challenges, as you also need a robust environment in which to deploy the containers. And that requires...
Docker Swarm Mode vs. Kubernetes: Key Facts You Need to Know
Docker Swarm Mode and Kubernetes are two of the most popular tools for container clustering and orchestration, despite their divergent philosophies and capabilities. Since both platforms are quite distinct, experience with one generally...
Continuous Delivery with Weave Flux
Weave Cloud runs on Kubernetes. Kubernetes give us a suite of tools for managing a running system, but it does have boundaries. In particular, it doesn’t care (and shouldn’t care) where your container images come from. But we do — we have...
Comparing Container Orchestrators: Six Choices Analyzed | Weaveworks
Comparing OrchestratorsIf you’re managing a large number of containers, or expecting to do so in the near future, the options for container orchestration tools — from major players such as Amazon and IBM to startups and open-source...
Securing Microservices in Kubernetes
IntroductionStarting with version 1.3, Kubernetes includes beta support for network policies that allow you to exert control over connections to your containers. For those unfamiliar with Kubernetes network policies they have the following...
Join Weaveworks at KubeCon Seattle + CloudNativeCon
KubeCon Seattle is Almost Here KubeCon Seattle is just around the corner and we hope to see you there Nov. 8-9. If you’re not familiar with KubeCon Seattle, the two-day event brings together thousands of Kubernetes technologists to hear...
Whodunnit? Debugging and Diagnosing Microservices with Weave Cloud Beta
Debugging is about understanding the system. If software is behaving in some unexpected way, it means there is some piece of the system you don’t understand. Microservices, in particular, spread the system’s behaviour across many...
Configuring Container Capabilities with Kubernetes
In this blog post, I discuss how to configure capabilities for Docker containers running on Kubernetes. Even though Linux containers run in their own isolated bubble, they aren’t just allowed to do anything they like. Some actions, such as...
Monitoring Your Kubernetes Infrastructure with Prometheus
In the last post in our series “Prometheus and Kubernetes”, Tom talked about how we use Prometheus to monitor the applications and services we deploy to Kubernetes. In this post, I want to talk about how we use Prometheus to monitor our...
Run Weave Net with Kubernetes in Just One Line
Kubernetes, the Open Source container orchestration system from Google, has very specific network requirements. Historically people have used complex Salt and Bash scripts to configure networks to meet the requirements, but...