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πŸ’₯πŸ’₯ Today's Technotes πŸ’₯πŸ’₯

What are Scripted Pipelines in Jenkins?
Answer: Scripted Pipeline follows Groovy Syntax as given below:
Node {
}
In the above syntax, the node is a part of the Jenkins distributed mode architecture, where
there are two types of node, Master which handle all the tasks in the development
environment and the Agent is being used to handle multiple tasks individually.
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What is Groovy in Jenkins?
Answer: Groovy is the default scripting language that is being used in the development of
JMeter Version 3.1.
Currently Apache Groovy is the dynamic object-oriented programming language that is
used as a scripting language for the Java platform. Apache Groovy comes with some useful
features such as Java Compatibility and Development Support.
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Which command is used to start Jenkins?
Answer: You can follow the below-mentioned steps to start Jenkins:
1. Open Command Prompt
2. From the Command Prompt browse the directory where Jenkins. war resides
3. Run the command given below:
D:\>Java –jar Jenkins.war
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What is Jenkinsfile?
Answer: The text file where all the definitions of pipelines are defined is called Jenkinsfile. It
is being checked in the source control repository.
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What is the difference between Continuous Integration, Continuous Delivery,
and Continuous Deployment?
Answer: The diagrammatic representation given below can elaborate on the differences
between Continuous Integration, Continuous Delivery, and Continuous Deployment more
precisely.

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What is Jenkins Pipeline? What is a CI CD pipeline?
Answer: The pipeline can be defined as the suite of plugins supporting the implementation
and integration of continuous delivery pipelines in Jenkins.
Continuous integration or continuous delivery pipeline consists of build, deploy, test, release
pipeline. The pipeline feature saves a lot of time and error in maintaining the builds.
Basically, a pipeline is a group of build jobs that are chained and integrated in sequence.
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What are Scripted Pipelines in Jenkins?
Answer: Scripted Pipeline follows Groovy Syntax as given below:
Node {
}
In the above syntax, the node is a part of the Jenkins distributed mode architecture, where
there are two types of node, Master which handle all the tasks in the development
environment and the Agent is being used to handle multiple tasks individually.
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What are Declarative Pipelines in Jenkins?
Answer: Declarative Pipelines are the newest additions to Jenkins that simplify the groovy
syntax of Jenkins pipelines (top-level pipeline) with some exceptions, such as:
No semicolon to be used as a statement separator. The top-level pipeline should be
enclosed within block viz;
The common syntax is:
pipeline {
/* Declarative Pipeline */
}
Blocks must contain Sections, Directives, steps or assignments.
pipeline {
agent any
stages {
stage(β€˜Build’) {
steps {
// Statements…
}
}
stage (β€˜Test’) {
steps {
// Statements…
}
}
}
}
The above code has 3 major elements
ο‚· Pipeline: The block of script contents.
ο‚· Agent: Defines where the pipeline will start running from.
ο‚· Stage: The pipelines contain several steps enclosed in the block called
Stage.
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How will you define Post in Jenkins?
Answer: Post is a section that contains several additional steps that might execute after
the completion of the pipeline. The execution of all the steps within the condition block
depends upon the completion status of the pipeline.
The condition block includes the following conditions – changed success, always, failure,
unstable and aborted.
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What are Parameters in Jenkins?
Answer: Parameters are supported by the Agent section and are used to support various
use-cases pipelines. Parameters are defined at the top-level of the pipeline or inside an
individual stage directive.
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How you can set up a Jenkins job?
Answer: Setting up a new job in Jenkins is elaborated below with snapshots:
Step 1: Go to the Jenkins Dashboard and log in with your registered login credentials.
Step 2: Click on the New Item that is shown in the left panel of the page.
Step 3: Click on the Freestyle Project from the given list on the upcoming page and
specify the item name in the text box.
Step 4: Add the URL to the Git Repository.
Step 5: Go to the Build section and click on the Add build step => Execute Windows batch command.
Step 6: Enter the command in the command window
Step 7: After saving all the settings and changes click on Build Now.
Step 8: To see the status of the build click on Console Output.
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Which commands can be used to start Jenkins manually?
Answer: You can use the following commands to start Jenkins manually:
1. (Jenkins_url)/restart: To force restart without waiting for build completion.
2. (Jenkin_url)/safeRestart: Waits until all the build gets completed before
restarting.
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