K3s cluster Helm3 rapid deployment of Operator & Prometheus at home and abroad

Background summary Recently, helm3 has deployed resources in k8S/k3s clusters. In China, Alibaba, Netease and Tsinghua are always keen to be image sources. Because there are always one or another problems in domestic and foreign networks, the difference between your ability and others is how you quickly deal with such network problems, which w ...

Posted by maxpouliot on Tue, 08 Mar 2022 19:08:06 +0100

SpringBoot Admin2.0 integrated Java diagnostic artifact Arthas practice

Author | sparrow Source| Alibaba cloud official account This article is from Arthas. It was submitted in March 2021. The way of participation in the award-winning essay in April can be seen at the end of the article. The project initially used Arthas for two purposes: Through arthas, we can solve the problem of realizing the performance pr ...

Posted by lulubell on Tue, 08 Mar 2022 07:48:16 +0100

Private credentials: Secret

Secret A Secret is an object that contains a small amount of sensitive information, such as a password, token, or key. Such information may be placed in the Pod protocol or in the image. Using Secret means you don't need to include confidential data in your application code. (this passage comes from the official website) The use process i ...

Posted by platnium on Sat, 05 Mar 2022 17:21:18 +0100

Fluid gives data elasticity a pair of invisible wings - Custom elastic expansion

Author | CHEYANG Fluid community committer Xie Yuandong Fluid community committer Source| Alibaba cloud official account **Introduction: * * elastic scaling is one of the core capabilities of Kubernetes, but it has always been carried out around this stateless application load. Fluid provides the elastic scalability of distributed cache, ...

Posted by ekalath on Sat, 05 Mar 2022 03:36:28 +0100

Kubernetes - operator first experience

This chapter refers to the of operator SDK tutorial Write a memcache operator 1 function introduction After the memcache operator is created successfully, you can create a memcache service through the following yaml apiVersion: cache.example.com/v1alpha1 kind: Memcached metadata: name: memcached-sample spec: size: 3 Create memcache ...

Posted by lilwing on Thu, 03 Mar 2022 03:53:16 +0100

Blog dry goods | using Apache Pulsar in Kotlin

About Apache PulsarApache Pulsar is a top-level project of Apache Software Foundation. It is a native distributed message flow platform of the next generation cloud. It integrates message, storage and lightweight functional computing. It adopts the design of separation of computing and storage architecture, supports multi tenant, persistent sto ...

Posted by Discord on Thu, 24 Feb 2022 14:37:30 +0100

Design Guidance for Micro Services - Solving cascade avalanches and efficiency between systems caused by traditional mass runs using cloud native micro services

Problem Description This is also a real production accident, as shown in the following figure This "avalanche" is an internal system avalanche within an enterprise. We all know that if it exists on external http calls, including all restful, soap requests, HTTP type calls: a->b->c->d assumes that system B is an "int ...

Posted by cdickson on Sun, 20 Feb 2022 03:32:08 +0100

Apache RocketMQ + Hudi Quick Build Lakehouse

Table of Contentsbackground knowledgeArchitectural Evolution in the Big Data AgeRocketMQ Connector&StreamApache HudiBuilding Lakehouse PracticesThe title of this article contains three keywords: Lakehouse, RocketMQ, Hudi. We start with the overall Lakehouse architecture, and then step by step analyze the causes of the architecture, the char ...

Posted by az_wraith on Tue, 15 Feb 2022 20:04:01 +0100

How does OpenTelemetry do this: just detect the application once and send the data to any backend

OpenTelemetry (also known as OTel) is an open source observable capability framework, which is composed of a series of tools, API s and SDK s, enabling IT teams to detect, generate, collect and export remote monitoring data for analysis and understanding software performance and behavior. Popular ones include Zipkin from Spring Cloud, CAT fr ...

Posted by Firestorm3d on Tue, 15 Feb 2022 12:45:31 +0100

Building kubernetes cluster with kubedm

1, Deploying kubernetes with kubedm kubernetes node architecture diagram: kubernetes component architecture diagram: 1. Prepare the basic environment We will use kubeadm to deploy the Kubernetes Cluster with three nodes. The node information is as follows: host name IP address role OS assembly Minimum configuration master 192.1 ...

Posted by neridaj on Sun, 13 Feb 2022 11:50:43 +0100