Install and Configure Grafana in Ubuntu and Debian

This Tutorial is Deprecated and New Version of Tutorial you can find here – CLICK HERE Install and Configure Grafana in Ubuntu and Debian Step 1 –…

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Top 10 Container(Docker) Monitoring Solutions and Tools in 2018

Top 10 Container Monitoring Solutions/Tools in 2018 Native Docker cAdvisor Scout Pingdom Datadog Sysdig Prometheus Heapster / Grafana ELK stack Sensu Reference https://rancher.com/comparing-10-container-monitoring-solutions-rancher/ Docker Tutorials Fundamental To…

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How to compile and build Gerrit Plugins?

To build Gerrit Plugins from source, you need: A Linux or macOS system (Windows is not supported at this time) zip, unzip, wget $yum install zip -y…

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What is “Install Verified label” in Gerrit?

What is “Install Verified label” in Gerrit? The Verified label was originally invented by the Android Open Source Project to mean ‘compiles, passes basic unit tests’. Some…

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What is Enable signed push support in Gerrit?

This options Defaults to false. This ensure When a client pushes with git push –signed, this ensures that the push certificate is valid and signed with a…

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Importannce of Canonical web url in Gerrit

The canonical web url must be set. Optional base URL for repositories available over the anonymous git protocol. For example, set this to git://mirror.example.com/base/ to have Gerrit…

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How to backup and restore Gerrit server?

How to backup and restore gerrit server? There are 3 coponent which should be backed up in gerrit Repository – According to me best way to backup…

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How Gerrit Works?

When Gerrit is configured as the central source repository, all code changes are sent to Pending Changes for others to review and discuss. When enough reviewers have…

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How to setup Kubernetes Dashboard in EKS using NodePort?

How to setup Kubernetes Dashboard in EKS using NodePort? Step 1: Deploy the Dashboard# Deploy the Kubernetes dashboard to your cluster: [code]kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml[/code] # Deploy…

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What is Annotations in Kubernetes?

What is Annotations in Kubernetes? There are two way using you can attach metadata to Kubernetes objects. labels annotations Kubernetes annotations is used to attach arbitrary non-identifying…

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What is EKS and How EKS can help you?

In simple line, Amazon EKS is generally available, bringing fully-managed Kubernetes to AWS. Amazon launched Amazon EKS in November at its re:Invent 2017 conference. Till the time…

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Understanding the tools sets in Docker ecosystem

Docker Engine Docker Engine is our lightweight and powerful open source containerization technology combined with a work flow for building and containerizing your applications. Docker Engine is…

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Introduction of containers services at Amazon AWS

Here are the following Services which is offered by AWS at present which will help you to onboarding Containers on AWS platforms. Amazon Elasitc Container Services (ECS)…

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Understanding Chef Node Objects json content!

Chef Node Objects Defined! For the chef-client, two important aspects of nodes are groups of attributes and run-lists. An attribute is a specific piece of data about…

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Understanding the chef cookbook’s chefignore file

The chefignore file is used to tell knife which cookbook files in the chef-repo should be ignored when uploading data to the Chef server. The type of…

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Lets Understand the Ruby programming world in 5 mins!!!

Lets Understand the Ruby programming world in 5 mins? Ruby Ruby is a dynamic, interpreted, reflective, object-oriented, general-purpose programming language. It was designed and developed in the…

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How to execute grovvy script remotely on Jenkins server?

A Jenkins Admin can execute groovy scripts remotely by sending an HTTP POST request to /script/ url or /scriptText/. curl example via bash [code] curl -d “script=<your_script_here>”…

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How to run/execute groovy script in Jenkins?

Here are the List of way using you can apply grovy code in Jenkins Method -1: Groovy plugin This plugin adds the ability to directly execute Groovy…

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Database of Groovy Script for Jenkins Automation

Here are the list of Groovy Script which can be used in Jenkins to automate the JOBs and CI process. Please add your list in the comment…

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How Jenkins works? Jenkins Architecture Explained!!!

Jenkins is continuous integration tools which help to integrate other tools to automate the software development activity and repetitive tasks. Jenkins has 2 releases. One, Community version…

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Secure Tunnels to localhost using ngrok

Secure Tunnels to localhost using ngrok ngrok is a free tool that allows you to expose a web server running on your local machine to the internet….

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run_list and env_run_list explanined in chef role

run-list A run-list defines all of the information necessary for Chef to configure a node into the desired state. A run-list may include roles and/or recipes. A…

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How to run chef-client in why-run mode aka “no-operation”

why-run mode is a way to see what the chef-client would have configured, had an actual chef-client run occurred. This approach is similar to the concept of…

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List of Default ports used in OpenStack components

List of Default ports used in OpenStack components  OpenStack service Default ports Port type Block Storage (cinder) 8776 publicurl and adminurl Compute (nova) endpoints 8774 publicurl and…

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Logstash explained in 5 mins

What is Logstash? Logstash is an open source, server-side data processing pipeline that ingests data from a multitude of sources simultaneously, transforms it, and then sends it…

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Understanding the chef cookbook’s Berkshelf file

Configuration Management using chef is being implemented with the help of desire files, which is often called a “cookbooks” in chef. Usuallay separate cookbooks is written in…

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AWS diagram icon sample and reference

Aws diagram and icon explained 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…

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List of AWS regions and availability zones

List of  AWS Regions This is complete list of  AWS regions available currently. S.No Code Name 1 us-east-1 US East (N. Virginia) 2 us-west-2 US West (Oregon) 3…

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How to run UI testing in Docker container using Selenium

Docker is one of the revolutions technologies which has created lots of buzz in the Software development practices. Docker has not only helped to setup Continuous Integration…

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