What is Uninstall and Uninstall Component in uDeploy?
Component process types – Uninstall and Application process types “Uninstall Componeet” would not Uninstall a files which was uninstalled in last deployment. rather Uninstall steps has to be written manually…
Read more »uDeploy Essentials Labs and Excercise – Part 4
Install HTTPD Start HTTPD Create a file named called “index.html” under /var/www/html/. Content of the file should having be “Welcome to DevOpsSchool.com”. Create a directory under /var/www/html/ named with “newletter”…
Read more »uDeploy Essentials Labs and Excercise – Part 2
Understand System uDeploy Agent requirements considerations. Install the uDeploy Agent. Starting and stopping the Agent/ Check Agent properties in the installed.properties file control details about the server, such as what…
Read more »uDeploy Essentials Labs and Excercise – Part 1
Understand System uDeploy server requirements considerations. Install the uDeploy server. Starting and stopping the server. Check server properties in the installed.properties file control details about the server, such as what…
Read more »Top 5 free Software for Video Editing in 2019
1. Blender One of the best free video editors is software that works on Windows, Mac and Linux. It is completely free to use. Blender was actually designed for the…
Read more »Top 5 Android apps for image editing with special effects
Lumyer – Augmented Reality This is a photography app. It has been chosen as the best apps. Select your favourite effect and start recording your video. During this time you…
Read more »Top 5 free Photo Editing Software
Adobe photoshop :- With the advent of Adobe photoshop in the computer sector, all the work related to graphics started easily. Photoshop was mainly used in many areas related to…
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Ansible inventory in one remote machine using command-line
You can specify inventory file host path or comma separated host list. Except “localhost”, you can always specify a inventory using “-i INVENTORY” or –inventory=INVENTORY. Also, there are two default…
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How to pass http proxy to ansible using environment variables?
It is quite possible that you may need to get package updates through a proxy, or even get some package updates through a proxy and access other packages not through…
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PHP Tutorial for Beginners
PHP FRONT TO BACK What is PHP?:- PHP: Hypertext Preprocessor(Recursive Acronym)Server-Side Programming/Scripting LanguageCan be embedded directly within HTML (<?php?>)Files use a “.php” file extension How Does PHP Work?:- Client makes…
Read more »Pod status is in continous Terminating state but rc and deploy got deleted
Pod status is stuck in Terminating state but replicationController and deployment got deleted. To solve this issues, please follow a commands below; Errors Solutions Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate…
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How to delete/remove/clean existing corrupted or old kubeadm kubernetes clusters setup?
RHEL / Centos Ubuntu How to remove or cleanup kubernetes worker nodes in Centos 7? How to remove or cleanup kubernetes worker nodes in Ubuntu? Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert…
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Setting up Kubernetes Clusters using Kubeadm Manual way in RHEL 7 / Centos7
What is Kubeadm? Kubeadm helps you bootstrap a minimum viable Kubernetes cluster that conforms to best practices. Kubeadm is a tool built to provide kubeadm init and kubeadm join as…
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Setting up Kubernetes Clusters using Kubeadm Manual way in Ubuntu 16.04 Xenial
What is Kubeadm? Kubeadm helps you bootstrap a minimum viable Kubernetes cluster that conforms to best practices. Kubeadm is a tool built to provide kubeadm init and kubeadm join as…
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Kubernetes Errors: weave-net pod CrashLoopBackOff
Errors Solutions https://stackoverflow.com/questions/39872332/how-to-fix-weave-net-crashloopbackoff-for-the-second-node Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday…
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Kubernetes Errors: Kubernetes nodes are in ‘”network not ready” & “No networks found”
Errors Solutions https://stackoverflow.com/questions/47107117/how-to-debug-when-kubernetes-nodes-are-in-not-ready-state https://stackoverflow.com/questions/50085323/kubernetes-worker-node-staying-in-notready-state Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at…
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Kubernetes Error: kubeadm related errors and solutions
Error 1 Error 1 Error 2 Error 3 Solutions 3 Error 4 Solutions 4 Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus….
Read more »Kubernetes Errors: Kops related errors
Error 1 Error 2 Error 3 Error 4 Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps…
Read more »Kubernetes Error: coredns – no route to host log & Failed to list & CrashLoopBackOff
Errors Solutions Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark,…
Read more »kubeadm error – kubelet isn’t running or healthy and connection refused
Errors Headlines Initial timeout of 40s passed dial tcp [::1]:10248: connect: connection refused failed with error: Get http://localhost:10248/healthz The kubelet is not running Solutions If you are on a systemd-powered…
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Kubernetes supports Windows containers
With the release of Kubernetes v1.14, Windows Server node support has officially graduated from beta to stable! This support enables developers and operators with Windows Server based applications to containerize…
Read more »Kubernetes Error – minikube – A firewall is likely blocking minikube from reaching the internet
If you are trying a start in minikube behind a firewall and getting following errors Solutions You need to set a proxy on a command line. macOS and Linux Windows…
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How to overwrite Existing AWS EC2 AMI with Packer?
USING FORCE_DEREGISTER ADDED IN V1.1.2, IT WAS VERIFIED WHETHER AWS EC2 AMI CAN BE OVERWRITTEN. THE PROCESS IS TO DELETE THE AMI WITH THE SAME NAME AND THEN CREATE A…
Read more »Create AWS AMI policy, IAMgGroup and IAM user for Hashicorp Packer
This tutorails helps you to create a AWS AMI policy, IAMgGroup and IAM user for Hashicorp Packer execution so Packer should get only needed access than all. Step 1 –…
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Installing uDeploy Server 6.X in linux rhel 7.5
Install and Setup JDK 8 and JAVA HOME Install and Setup uDeploy Server 6.X How to start / Stop uDeploy server? Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge…
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EKS cluster setup error: the server doesn’t have a resource type “services
When an Amazon EKS cluster is created, the IAM entity (user or role) that creates the cluster is added to the Kubernetes RBAC authorization table as the administrator (with system:master…
Read more »How to destroy one specific resource from TF file in Terraform?
Terraform destroy is a command that allows you to destroy either a full stack (based on your TF files), or single resources, using the -target option. You can even do:…
Read more »Continuous integration using Bamboo – Crash Course – 1 Day
Following are the agenda which, I am going to cover in next week session for continuous integration using Bamboo – Crash Course – 1 Day. Introduction of Bamboo with CI…
Read more »Kubernetes PersistentVolume, PersistentVolumeClaim, volume using hostPath
pv.yaml $ kubectl create -f pv.yaml $ kubectl get pv pvc.yaml $ kubectl create -f pvc.yaml $ kubectl get pvc pod.yaml $ kubectl create -f pod.yaml $ kubectl get pods…
Read more »Working with Kubernetes Cluster using Kubectl Part – 11 – Probes
container-probes.yaml Commands Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark,…
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