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  • Upgrade kubernetes using kubespray

    Mar 29, 2021
    Upgrade kubernetes using kubespray

    Kubespray comes very handily when you want to upgrade or downgrade your kubernetes cluster to the specific version. But it can be troublesome if you do not know - How to upgrade your Kubernetes cluster using Kubespray? Table of Content How the upgrade works for Kubespray How to checkout the correct Kubespray …

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  • kubectl export yaml OR How to generate YAML for deployed kubernetes resources

    Feb 25, 2021 YAML
    kubectl export yaml OR How to generate YAML for deployed kubernetes resources

    In this post, we are going to see how to get YAML of deployed Kubernetes resources(pvc, configmap, ingress, service, secret, deployment, statefulset, hpa, job, cronjob). Most of the time we create the deployment and expose services inside the kubernetes cluster using YAMLs but here in this the post we will focus on a …

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  • Kubernetes Table of Content

    Jan 28, 2021 Kubernetes
    Kubernetes Table of Content

    Table of Content for Kubernetes Part-1 : Setup kubernetes on Ubuntu Part-2 : Setup Kubernetes on CentOs Part-3 : Setup HA Kubernetes Cluster with Kubespray Part-4 : Setup HA Kubernetes with Minikube Part-5 : Setup Kubernetes Dashboard for local kubernetes cluster Part-6 : Setup Kubernetes Dashboard On GCP(Google …

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  • Pass environment variables into Helm Chart?

    Jan 7, 2021 Helm Chart
    Pass environment variables into Helm Chart?

    Helm chart provides a couple of ways to access or pass environment variables into the templates –set values.yaml But before you start reading the article let’s make some baseline. In this article, I have created only one chart helloworld. So I will be taking the same hellworld helm chart to pass the …

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  • How to fix - Helm install unknown flag --name/Error must either provide a name or specify --generate-name?

    Jan 5, 2021 Helm Chart
    How to fix - Helm install unknown flag --name/Error must either provide a name or specify --generate-name?

    In Helm v3 you must use release name along with chart name in the command otherwise it will result into the following errors - Error 1- Helm install unknown flag --name Error 2- Error: must either provide a name or specify --generate-name Lets look at Error 1 - Caused by incorrect use of –name flag This --name …

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  • Understanding Helm dry run for template debugging

    Dec 25, 2020 Helm Chart
    Understanding Helm dry run for template debugging

    Debugging and troubleshooting Helm Template in the complex production environment can be really daunting if you do not use helm install --dry-run --debug or helm template command for debugging the Helm Templates. helm install --dry-run --debug :- It will validate and verify your chart by connecting to kubernetes api …

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  • 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)

    Dec 22, 2020 Helm Chart
    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)

    In this article we are going to see how to fix - Error create failed to create Secret sh.helm.release.v1.demoChart.v1 is invalid metadata.name Invalid value sh.helm.release.v1.demoChart.v1 a DNS-1123 subdomain must consist of lower case alphanumeric characters - or ., and must start and end with an alphanumeric …

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  • Kubernetes Updates

    Dec 4, 2020 Kubernetes updates
    Kubernetes Updates

    December 04, 2020 Kubernetes is deprecating Docker support and how should you prepare for it? As of December 02, 2020 Kubernetes has announced that going forward Kubernetes is going to deprecate Docker as their preferred container runtime environment. In the DevOps community Docker is considered as a backbone when it …

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  • Convert Kubernetes deployment YAML into Helm Chart YAML

    Nov 26, 2020 Helm Chart
    Convert Kubernetes deployment YAML into Helm Chart YAML

    In this article we are going to look how can we convert Kubernetes YAMLs into Helm Chart YAMLs. Objective 1 : - At first we are going to create simple Kubernetes deployment(k8s-deployment.yaml)` and in that deployment we are going to deploy a microservice application. Objective 2 : - Secondly we are going to `create …

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  • Helm chart - Wordpress Installation with MariaDB on Kubernetes

    Nov 26, 2020 Helm Chart
    Helm chart - Wordpress Installation with MariaDB on Kubernetes

    In this tutorial, we are going to install WordPress with MariaDB using the Helm Chart on Kubernetes cluster. With this installation, we are going to see - How we can upgrade as well as rollback the Helm Chart release of WordPress. This complete setup inherited the benefits of the Kubernetes .i.e. scalability and …

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Categories

KUBERNETES 31 HELM-CHART 9 TERRAFORM 6 DOCKER 5 KUBESPRAY 4 QUARKUS 4 SPRING-BOOT 4 SSL 3 JENKINS 2 NGINX 2 BLOGGING 1 DEVOPS 1 EXCEPTIONS 1 HADOOP 1
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BLOGGING1 DEVOPS1 DOCKER5 EXCEPTIONS1 HADOOP1 HELM-CHART9 HIBERNATE1 JENKINS2 KUBERNETES31 KUBESPRAY4 NGINX2 QUARKUS4 SPRING-BOOT4 SSL3 TERRAFORM6
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Tags

KUBERNETES 21 HELM-CHART 6 DOCKER 4 QUARKUS 4 SPRING-BOOT 3 SSL 3 EXCEPTION 2 JENKINS 2 KUBESPRAY 2 APPLICATIONRUNNER 1 COMMANDLINERUNNER 1 ETCD 1 FILEALREADYEXISTSEXCEPTION 1 GOHUGO 1
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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 SSL3 TERRAFORM1 YAML1
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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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