DevOps

Chef Infra Automation Commands Quick Command Guide reference: knife bootstrap IPADDRESS(hostname) –sudo -x username -P password -N target1 (This installs chef-client and validates) knife [...]

Introduction: In today’s rapidly evolving technological landscape, career transitions have become more common than ever before. If you’re currently working in a non-IT field but aspire to venture [...]

Introduction: In today’s fast-paced and highly competitive technology landscape, DevOps has emerged as a crucial methodology for streamlining software development and operations. At the heart of [...]

Github url :   https://github.com/cubensquare/K8S-v1.26-installation-containerd Kubernetes – GPG Error – Public Key is not available

Our featured video, “A Day to Day Activities of a SRE Engineer,” takes you on a captivating journey into the world of SRE through the eyes of the talented Surya. Surya is a seasoned [...]

Solution : è sudo su – è cd /etc/apt/sources.list.d è vi kubernetes.list deb http://apt.kubernetes.io/ kubernetes-xenial main è apt update è apt-get install -y kubelet kubeadm kubectl For more [...]

In recent years, DevOps and Site Reliability Engineering (SRE) have emerged as two popular approaches for managing software development and operations. While both methodologies aim to improve the [...]

Here are some comparisons of popular DevOps tools with movie characters, along with simple explanations: Jenkins as Tony Stark (Iron Man): Jenkins is like Iron Man, the genius inventor who [...]

Walt Disney The Walt Disney Company is a global entertainment company that was founded in 1923 by Walt Disney and his brother Roy. It is best known for its iconic characters such as Mickey Mouse, [...]

Volkswagen has used a variety of tools available in OpenShift to build and deploy its digital services, including: Source-to-Image (S2I): Volkswagen has used S2I to create container images from [...]

What is AngularJS? AngularJS is a JavaScript framework for building web applications. It is an open-source framework maintained by Google and community contributors. AngularJS was first [...]

What is Witbe? Witbe is an automated testing platform that helps organizations to ensure the quality of their digital services. It provides a comprehensive set of tools to automate the testing of [...]

The Digital Media Group (DMG) is a unit of Sony Pictures Technologies, which is part of Sony Pictures Entertainment, Inc. (SPE). SPE’s global operations encompass motion picture production, [...]

Containerd versions can be found in this location : https://github.com/containerd/containerd/releases Step 1 : Download the containerd package wget [...]

Challenges : – Single place for seamless validation and deployment of salesforce project – Minimize human interference – Decrease the release time – Scheduled pull was [...]

Netflix is a well-known example of a company that has effectively integrated DevOps principles and practices into their software development and delivery processes. The company has a large, [...]

Electronic Signaling Solution for Railways

Link – https://github.com/cubensquare/K8S-v1.26-installation-containerd  

Issue: Datadog unable to post the Payload from the nodes provisioned by Karpenter. It prompts with the below error complaining about Multiple Mount points in your Kubernetes Pod. 2023–01–03 [...]

Introduction In this Blog, let’s do a comparison between a Normal Deployment Tool like Rundeck with Continuous Delivery Tool Spinnaker Problem Statement with Rundeck: 1. Get Rid of Custom [...]

Introduction The smart commit is basically an Integration between GITHUB and JIRA instance. This will help us to reduce duplicating the work of updating the JIRA comments and helps to track the [...]

Problem Statement Elastic Kubernetes Service (EKS) is predominantly used by many of the Organizations because it is an upstream and certified conformant version of Kubernetes with backported [...]

Migration Migration — yet another usual term on the crowded streets of Software Architecture. Migration tasks in a Software Industry can be hectic, time-consuming, or painful involving multiple [...]

Site Reliability Engineer – The term ideated by Google and this role has been gaining more attention day by day .  A role dedicated in focussing on OBSERVABILITY, RESILIENCY, RELIABILITY AND [...]

Kubernetes nodes use the container runtime to launch, manage, and stop containers running in Pods. The containerd runtime is an industry-standard container runtime that’s supported by GKE. [...]

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Devops Engineer works with different stake holders/teams to create and implement software systems Devops Engineer needs to be ready to work on multiple tools including any new tools emerging in [...]

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Blue Ocean is a new user experience for Jenkins. Blue Ocean makes Jenkins, and continuous delivery, approachable to all team members. 1. Login to your Jenkins server 2. Click Manage Jenkins in [...]

The DD agent startup failed on container as its not auto detecting container hostname. Agent works fine when its on a host , but when it runs on a container , we face this . Relook at the agent [...]

Streaming movies, Web-series , sports has been the current market trend . Google ‘world cup streaming’ and you can find n number of streaming platforms . Considering the current market trend [...]

Getting the below error while trying to get default-quotas for bank-pl namespace Solution : quota and resourcequota will show the same thing luckily in kubernetes.  Run a command like this to get [...]

Troubleshooting : – Checked the dedicated node having issues with docker – When checked docker seems healthy enough to be passing checks but not healthy enough to run pods – [...]

Reason : One such scenario – During a node scale down activity, the POD scheduled on nodes being marked for scale down but failed to drain . After deleting the POD few times , it got [...]

Is there a suggested limit for setting the CPU and Memory resource limit for a pod Obviously yes . The resource request should be near where the application run 100% of the time . The intention [...]

For a specific cluster Datadog is reporting a change of Max, Min and Current Replicas about every 20 mins for the metric kubernetes_state.hpa.max_replicas . The actual number of pods/containers [...]

Failed to verify ID token : failed to verify signature: fetching keys : get failed Get “https://xx.xxxxx.com/keys”: context deadline exceed while accessing https://abcxyz.com/ This issue was [...]

Warning DNSConfigForming kubelet Search line limits were exceeded, some search paths have been omitted, the applied search line is : xxx.svc.cluster.local cluster.local This can be ignored and [...]

Devops Evolution Traditional to Virtualization to Containerization Watch Video to know more !!

What is Persistent Volume — get a outline here !! Learn more at CubenSquare

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What is PVC ? Learn more at cubensquare.com/blog

The Easy Way – YAML Writing CubenSquare — IT Training | Certification | Job Placement

Check out the difference between Version 1.23 and Version 1.24 Learn more here — cubensquare.com IT TRAINING | CERTIFICATION | JOB PLACEMENT