Top 50 traefik Interview Questions & Answer

1) What is Traefik software? Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that makes deploying microservices easy. Traefik integrates with your existing infrastructure components (Docker,…

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Top 50 Kubernetes interview questions and answers

1) What is Kubernetes? Kubernetes is a container management system developed in the Google platform. The purpose of Kubernetes is to manage a containerized application in various types of physical,…

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Top 50 Chef interview questions and answers

1.Q) What Is A Resource? Ans: A resource represents a piece of infrastructure and its desired state, such as a package that should be installed, a service that should be…

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Top 50 Puppet interview questions and answers

1) Why is the puppet important? Ans: Puppet develops and increases the social, emotional and communication skills of the children. 2) What are the works and uses of puppets? Ans:…

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Top 50 Apache spark interview questions and answers

Q1. What is RDD? Ans. RDD (Resilient Distribution Datasets) is a fault-tolerant collection of operational elements that run parallel. The partitioned data in RDD is immutable and distributed. Q2. Name…

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Update the taints on one or more nodes in Kubernetes

What is meaning of taint? a trace of a bad or undesirable substance or quality. What is tainted? spoiled; damaged in quality, taste, or value: Follwing are workload which run…

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elasticsearch-error-node

Elastic Search Error – Node is started with node.data=false, but has shard data

[2019-07-11T09:59:18,013][ERROR][o.e.b.Bootstrap ] [es-master01] Exception java.lang.IllegalStateException: Node is started with node.data=false, but has shard data: [/home/ec2-user/elasticsearch-7.2.0/data/nodes/0/indices/6XsNftnbSbOnzPK3wOKc 0w/0]. Use ‘elasticsearch-node repurpose’ tool to clean up at org.elasticsearch.env.NodeEnvironment.ensureNoShardData(NodeEnvironment.java:1065) ~[elasticsearch-7.2.0.jar:7.2.0] at org.elasticsearch.env.NodeEnvironment.(NodeEnvironment.java:324) ~[elasticsearch-7.2.0.jar:7.2.0] Solution

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Copy a files from jenkins server to jenkins node/slave using pipeline plugins

Workarond 1 – Try to use stash/unstash, but it is bad for large files. [code]node(‘master’) {dir(‘/path/on/master/1’) {stash ‘master-stuff’}}node(‘slave’) {dir(‘/path/on/slave/1’) {unstash ‘master-stuff’}dir(‘/path/on/slave/2’) {stash ‘slave-stuff’}}node(‘master’) {dir(‘/path/on/master/2’) {unstash ‘slave-stuff’}} [/code] Read more about…

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Web GUI tools for Elasticsearch cluster

elasticsearch-head is a web front end for browsing and interacting with an Elastic Search cluster. There are multiple ways of running elasticsearch-head. Running as a plugin of ElasticSearch (this is…

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What are the method to interact with Elastic Search?

Elasticsearch provides official clients for several languages—Groovy, JavaScript, .NET, PHP, Perl, Python, and Ruby—and there are numerous community-provided clients and integrations, all of which can be found in There are…

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bootstrap-a-microsoft-windows-node-using-chef

Bootstrap a Microsoft Windows node using Chef

Bootstrap a Microsoft Windows node, the “knife windows” plugin is required,  More info about knife window tool, http://docs.chef.io/plugin_knife_windows.html knife bootstrap windows winrm uvo1eak9a5geec05f7z.vm.cld.sr –winrm-user administrator –winrm-password ‘Rx4m7W4PQu’ –node-name firefox_win –run-list…

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