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

    May 1, 2020 SSL

    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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  • 14 Steps to Install kubernetes on Ubuntu 18.04 and 16.04 (“hashicorp/bionic64”)

    Apr 24, 2020 kubernetes

    In this article on 14 Steps to Install kubernetes on Ubuntu 18.04 and 16.04 we are going to create Kubernetes cluster along with kubeadm on Ubuntu 18.04 (The same steps can be used for the Ubuntu 16.04 as well) kubeadm is command line tool to interact with kubernetes cluster. Kubeadm relies on fast deployment feature …

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

    Apr 24, 2020 kubernetes

    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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  • Quarkus Security Securing rest api with HTTPS

    Apr 15, 2020 Quarkus

    Quarkus is no doubt one the most super-fast framework for developing the Cloud Native java application. If you have worked with Spring Boot application than I think you are gonna love Quarkus because of its simplicity, super-fast boot time and extremely low memory usage. For the beginner, I would highly recommend going …

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  • java.lang.IllegalStateException: JWTAuthContextInfo has not been initialized. Please make sure that either ‘mp.jwt.verify.publickey’ or ‘mp.jwt.verify.publickey.location’ properties are set

    Apr 6, 2020 Quarkus

    It is quite evident from the exception (java.lang.IllegalStateException: JWTAuthContextInfo has not been initialized) that your are missing following key properties inside your application.properties 1mp.jwt.verify.publickey.location or 1mp.jwt.verify.publickey Resolution Step 1 : Define …

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  • Run Quarkus inside docker | Dockerizing a Quarkus Application

    Mar 26, 2020 docker Quarkus

    This article will guide you through building Docker image for Quarkus application and to run Quarkus application inside the docker container. What you are building You are building docker image for Quarkus. Docker is a lightweight Linux container for running applications in a containerized model. In this article we are …

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  • 6 Ways to fix – Docker COPY failed: stat no source files were specified

    Mar 18, 2020 docker exception

    This error I would consider one of the most basic errors which any developer can face during the initial days of Docker learning and the error Docker COPY failed: stat no source files were specified or docker copy failed no such file or directory is caused when docker copy command is not able to copy files from the …

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  • Getting started with Quarkus |Quarkus Tutorial

    Mar 13, 2020 Quarkus

    If you are new to Qurakus then this article will help you in Getting Started with Quarkus. In this article of Getting started with Quarkus |Quarkus Tutorial, we will be developing a Hello World RestEnd Point application as well as testing the Hot Reload feature provided by the Quarkus. What is Quarkus? Supersonice …

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  • Kubernetes Dashboard | Kubernetes Admin GUI | Kubernetes Desktop Client

    Jun 17, 2019 kubernetes

    Kubernetes comes really handy with its Kubernetes Dashboard| Kubernetes Admin GUI|Kubernetes Desktop Client. kubernetes dashboard is a general purpose web-based UI for managing the Kubernetes cluster. With the help of Kubernetes dashboard you can manage applications running in the cluster as well as it can help you to …

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  • Install Kubernetes with Minikube

    Jun 9, 2019 kubernetes minikube

    This article on Install Kubernetes with Minikube will walk you through the steps which is required to install and setup kubernetes and minikube on your development box. Kubernetes is an open-source platform which helps in managing containers which is used to deploy the applications, with kubernetes you can scale and …

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Categories

KUBERNETES 29 HELM-CHART 9 DOCKER 5 QUARKUS 4 SPRING-BOOT 4 KUBESPRAY 3 JENKINS 2 NGINX 2 SSL 2 BLOGGING 1 EXCEPTIONS 1 HADOOP 1 HIBERNATE 1

Tags

KUBERNETES 21 HELM-CHART 6 DOCKER 4 QUARKUS 4 SPRING-BOOT 3 EXCEPTION 2 JENKINS 2 KUBESPRAY 2 SSL 2 APPLICATIONRUNNER 1 COMMANDLINERUNNER 1 ETCD 1 FILEALREADYEXISTSEXCEPTION 1 GOHUGO 1
All Tags
APPLICATIONRUNNER1 COMMANDLINERUNNER1 DOCKER4 ETCD1 EXCEPTION2 FILEALREADYEXISTSEXCEPTION1 GOHUGO1 HADOOP1 HELM-CHART6 HIBERNATE1 INDEX1 JENKINS2 KUBERNETES21 KUBERNETES-UPDATES1 KUBESPRAY2 MINIKUBE1 NGINX1 QUARKUS4 SPRING-BOOT3 SPRING-BOOT-DEVTOOLS1 SSL2
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Recent Posts

  • How to fix - Error client etcd cluster is unavailable or misconfigured
  • How to fix - git@github.com permission denied (publickey). fatal could not read from remote repository
  • Pass environment variables into Helm Chart?
  • How to fix - Helm install unknown flag --name/Error must either provide a name or specify --generate-name?
  • Why I dumped Wordpress and switched to Hugo static site generator
  • Understanding Helm dry run for template debugging
  • How to fix - Error create failed to create Secret invalid metadata.name Invalid value DNS-1123 subdomain must consist of lower case alphanumeric characters - or ., and must start and end with an alphanumeric character (e.g. example.com, regex used for validation is)
  • Kubernetes Updates

Rahul Wagh

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