Jenkins Active choices parameter - Dynamic input

Hello DevOps team!! Today I've revisited the experiment with the Jenkins ACTIVE CHOICE Parameter  to get the Dynamic parameters effect on the Build Job parameters.

Installation Active Choice parameter - Groovy Script

Prerequisite:

Jenkins installed Up and running on your target master machine.

Jenkins URL accessible  

Step 1: Install Active Choice plugin

On the Jenkins Dashboard, select the Manage Jenkins, Plugin- Manager, In the Available tab search for word 'Active', where you can see Active Choice plugin and choose installation option, and this will enables three different parameters in the "Add Paramters" list. They are :
1. Active choice parameter
2. Active Choice Reactive parameter
3. Active choice Reactive Reference parameter

Here In my example I will use two of them, Firstly Active Choice Parameter for "environment".
Create new item Name: active_project select a freestyle project click OK button.
In the General tab, select the checkbox for 'This project is parameterized'.

Step 2: Add Parameter - Active Choice Parameter

Please enter the following as per your project needs. Offcourse here we are starting Groovy code snippets which doesn't required any expert level coding.

Name: environment 

Script: Groovy Script

Add the following groovy code:

return[
'Live',
'QA',
'Dev'
]

Screen shot: 

Adding Active Choice parameter adding Groovy list

Step 3: Add Parameter - Active Choice Reactive Parameter

Let's define the "Active Choice Reactive Parameter" as sub_env, Here 'sub_env' parameter is depends on the 'environment' parameter which is defined in the previous step.

 
Name: sub_env
Script: Select Grovy script:
Add the following groovy code:

if (environment.equals("Live")){
	return ["Prod","DR"]
}
else if (environment.equals("QA")){
	return ["FT","UAT","Stage"]
}
else if (environment.equals("Dev")){
	return ["Dev-Feature","Dev-Release"]
}
else{
	return ["Please select environment"]
}

On the same parameter block "Single select" from the dropdown
Groovy fall back code:

return ["Select proper environment"]

Now enter the environment as value for the 'Reference parameter'.

Adding Active choice reactive parameter

 

Step 4: Add Parameter list - Active Choice Reactive Reference parameter

Select Active Choice Reactive Parameter Enter the following values
Name: datacenter 

Script: Select Groovy script:
Add the following groovy code:

if(sub_env.equals("Prod")){
	return ["Prod environment at HYD region"]
	}
else if(sub_env.equals("DR")){
	return["DR environment at GG region"]
	}
else if(sub_env.equals("FT")){
	return ["FT environment at HYD region"]
	}
else if(sub_env.equals("UAT")){
	return["UAT environment at GG region"]
	}
else if(sub_env.equals("Stage")){
	return["Stage environment at GG region"]
	}
else if(sub_env.equals("Dev-Feature")){
	return["Dev-Feature environment at GG region"]
	}
else if(sub_env.equals("Dev-Release")){
	return["Dev-Release environment at GG region"]
	}	
else{
	return ["dont miss sub-env"]
}	

Groovy fall back code: return ["Select proper sub-env"]
Reference parameter: sub_env
Finally save the configuration of the project.

Final step

Verify saved script in Jenkins UI by clicking “Build with Parameters”.

Document References https://plugins.jenkins.io/uno-choice/