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Apache Ignite on your Kubernetes Cluster Part 2: RBAC Explained

You had a cache service running however all you did was installing a helm chart.In this blog we shall evaluate what is installed and take notes for our futures helm charts. The first step would be to view the helm chart. 1 2 3 > helm list NAME            NAMESPACE   REVISION    UPDATED                                 STATUS      CHART           APP VERSION ignite-cache    default     1           2020-03-07 22:23:49.918924 ...

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Rotating secrets in Kubernetes

I’m building a multitenant SaaS on top of Kubernetes at the moment, and one principle we’ve gone with is that all secrets should be rotated regularly. I’m surprised by the distinct lack of documentation on best practices for how to supply this configuration in Kubernetes. Of course, when it comes to certificates, it’s fairly straight forward to rotate a certificate ...

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Working with kubectl in Kubernetes

Kubectl is a command-line tool that helps us interact with our Kubernetes API server. In turn, it helps us manage our K8s cluster. In this quick tutorial, we’ll learn and explore some commonly used kubectl commands. Working with kubectl: Let’s look at kubectl‘s general syntax: Shell 1 kubectl [operation] [resource-type] [resource-name] [flags] When we don’t specify the resource name, it ...

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Kubernetes: An Introduction

Introduction: In this tutorial, we’ll introduce you to Kubernetes and will discuss its architecture. As a prerequisite, it’s good to have some basic knowledge of the container world. Kubernetes & its Architecture: Kubernetes, popularly known as K8s, is an open-source container orchestration engine for microservices-based containerized applications. A K8s cluster comprises of a master and multiple worker nodes: The master ...

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Spring Boot Microservices , Docker and Kubernetes workshop – part3

In the previous posts we build few micro services (Order Service, Product Service, Customer Service) for an order management system using Docker and Spring Boot. We used Netflix libraries to manage, discover and load balance the micro services. Managing these micro services and their multiple containers could get a bit tricky; especially in terms of Scalability, Observability, Security, Monitoring and ...

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[Upcoming Webinar] Troubleshooting Kubernetes: The 7 Key Components You Need to Have

In case you haven’t heard, containers are eating the world. This shift is transforming everything we’ve ever known about developing, delivering and maintaining our applications – particularly when it comes to resolving errors. With so many moving pieces, getting to the bottom of critical issues lurking in your Kubernetes-based apps can feel impossible. Traditional methods of troubleshooting – like sifting ...

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Service Mesh and Cloud-Native Microservices with Apache Kafka, Kubernetes and Envoy, Istio, Linkerd

Microservice architectures are not free lunch! Microservices need to be decoupled, flexible, operationally transparent, data aware and elastic. Most material from last years only discusses point-to-point architectures with tightly coupled and non-scalable technologies like REST / HTTP. This blog post takes a look at cutting edge technologies like Apache Kafka, Kubernetes, Envoy, Linkerd and Istio to implement a cloud-native service ...

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