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  • Building first Helm Chart with Spring Boot Microservices

    calendar Jul 15, 2020 · 11 min read  ·
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    Building first Helm Chart with Spring Boot Microservices

    When someone talks about managing the kubernetes cluster then I can very much assume that a particular someone is running a lot of kubectl, kubeadm command on terminal and which is quite obvious because managing kubernetes cluster is not as easy as it seems to be. Managing kubernets cluster means checking cluster, …


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  • How to fix kubernetes dashboard forbidden 403 error – message services https kubernetes-dashboard is forbidden User

    calendar Jun 30, 2020 · 4 min read · Kubernetes  ·
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    How to fix kubernetes dashboard forbidden 403 error – message services https kubernetes-dashboard  is forbidden User

    The objective of this article is to troubleshoot the https kubernetes-dashboard is forbidden error which you might have encountered after setting up the kubernetes dashboard but while trying to access it via browser it is throwing you forbidden error message. This blog is divided into two section - The actual …


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  • How to fix Kubernetes – error execution phase preflight [preflight]

    calendar Jun 16, 2020 · 11 min read · Kubernetes  ·
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    How to fix Kubernetes – error execution phase preflight [preflight]

    While working with kubernetes somewhere down the line you might have faced this error and there could be many reasons behind the issue error execution phase preflight With my experience in working with kubernetes I found that this issue mostly occurs when you are trying to setup kubernetes cluster on your own and since …


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  • Deploy Spring Boot microservices on kubernetes?

    calendar Jun 10, 2020 · 16 min read · Spring Boot  ·
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    Deploy Spring Boot microservices on kubernetes?

    TL;DR: This is going to be long post and the objective of this blog post is to deploy Spring Boot Microservice into the kubernetes cluster. The main objective here is to build everything from scratch and what I mean by that - creating a Spring Boot Application RestMicroservice, Building a Docker image and Finally …


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  • How to fix – ansible_memtotal_mb minimal_master_memory_mb

    calendar May 11, 2020 · 2 min read · Kubernetes  ·
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    ansible_memtotal_mb = minimal_master_memory_mb I faced this issue during Kubernetesinstallation using kubespray. If you are facing a similar issue with your ansible-playbook then it is time to increase the memory of your VMs For kubernetes installation using kubespray, please refer to kubespray – 12 Steps for …


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  • How to use kubespray – 12 Steps for Installing a Production Ready Kubernetes Cluster

    calendar May 11, 2020 · 12 min read · kubespray  ·
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    How to use kubespray – 12 Steps for Installing a Production Ready Kubernetes Cluster

    Before we jump into the steps of installation, if you are familiar with Puppet, Chef and Ansible (https://github.com/kubernetes-incubator/kubespray) then kubespray is going to be the best choice to set up a Kubernetes cluster. In this article, we will be going through 12 steps starting from setting up vagrant VMs till …


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  • How to setup kubernetes on CentOS 8 and CentOS 7

    calendar May 2, 2020 · 7 min read · Kubernetes  ·
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    How to setup kubernetes on CentOS 8 and CentOS 7

    This tutorial is for the ones who want to try out the Kubernetes installation on CentOS (This blog post has been updated and kubernetes installation instructions can be used for CentOS 7 as well as CentOS 8). In this article, I have simplified the installation into 15 steps for installing Kubernetes on CentOS …


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  • 6 Ways to fix : SSL certificate problem: self signed certificate in certificate chain

    calendar May 1, 2020 · 11 min read · SSL  ·
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    6 Ways to fix : SSL certificate problem: self signed certificate in certificate chain

    You can end with SSL certificate problem: self signed certificate in certificate chain in multiple cases but with my experience these are the most common scenario (Click on individual scenarios for more details) - Scenario 1 - Git Clone - Unable to clone remote repository: SSL certificate problem: self signed …


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  • How to fix – How to fix - ERROR Swap running with swap on is not supported. Please disable swap

    calendar Apr 24, 2020 · 1 min read · Kubernetes  ·
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    How to fix – How to fix - ERROR Swap running with swap on is not supported. Please disable swap

    The root cause for the error is swapping is on master as well as worker node. Fixing the error Step 1 - Disable the swap on both master and worker node (please run the below command on both master and worker node) 1vagrant@master:~$ sudo swapoff -a Step 2 - After disabling the swap, re-run the kubeadm init …


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  • 14 Steps to Install kubernetes on Ubuntu 20.04(bento/ubuntu-20.04), 18.04(hashicorp/bionic64)

    calendar Apr 24, 2020 · 8 min read · Kubernetes  ·
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    14 Steps to Install kubernetes on Ubuntu 20.04(bento/ubuntu-20.04), 18.04(hashicorp/bionic64)

    (Note : - This article has been updated for installing kubernetes on ubuntu 20.04) In this article on How to Install kubernetes on Ubuntu 20.04 and18.04 we are going to setup Kubernetes cluster along with kubeadm on Ubuntu 20.04 (The same steps can be used for the Ubuntu 18.04 as well as 16.04) We will start setting up …


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Categories

TERRAFORM 45 KUBERNETES 26 DOCKER 22 HELM-CHART 11 AWS 7 BLOGGING 6 SPRING-BOOT 5 SSL 5 QUARKUS 4 GITHUB 3 KUBESPRAY 3 PROMETHEUS-GRAFANA 3 VAGRANT 3 ANSIBLE 2
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ANSIBLE2 AWS7 BLOGGING6 DEVOPS1 DOCKER22 GITHUB3 GRADLE1 HADOOP1 HELM-CHART11 HIBERNATE1 KUBERNETES26 KUBESPRAY3 LINUX-COMMANDS1 NGINX2 PROMETHEUS-GRAFANA3 QUARKUS4 SPRING-BOOT5 SSL5 TERRAFORM45 VAGRANT3
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TERRAFORM 43 KUBERNETES 27 DOCKER 22 HELM-CHART 11 ANSIBLE 2 AWS 2 LINUX-COMMANDS 1

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KUBERNETES 18 HELM-CHART 10 BLOGGING 4 QUARKUS 4 DOCKER 3 GITHUB 3 SSL 3 KUBESPRAY 2 SPRING-BOOT 2 ANSIBLE 1 HADOOP 1 INDEX 1 NGINX 1 TERRAFORM 1

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Rahul Wagh

Its all about Open Source and DevOps, here I talk about Kubernetes, Docker, Java, Spring boot and practices.
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