{"id":35667,"date":"2023-05-30T02:16:39","date_gmt":"2023-05-30T02:16:39","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=35667"},"modified":"2023-05-30T02:16:41","modified_gmt":"2023-05-30T02:16:41","slug":"jenkins-tutorials-variables-in-scripted-pipeline","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/jenkins-tutorials-variables-in-scripted-pipeline\/","title":{"rendered":"Jenkins Tutorials: Variables in Scripted Pipeline"},"content":{"rendered":"\n

In a scripted Jenkins pipeline, you can use different types of variables depending on your requirements. Here are examples of different variable types commonly used in scripted pipelines:<\/p>\n\n\n\n

In a scripted pipeline, you can define variables using the def<\/code> keyword<\/strong>. Here’s an example of how to define a variable in a scripted Jenkins pipeline:<\/p>\n\n\n\n

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node {\r\n    stage('Example'<\/span>) {\r\n        \/\/ Define variable using def<\/span>\r\n        def myVariable = \"Hello, Jenkins!\"<\/span>\r\n\r\n        \/\/ Access and use the variable<\/span>\r\n        echo<\/span> myVariable\r\n\r\n        \/\/ You can also use the variable in conditional statements or within steps<\/span>\r\n        if<\/span> (myVariable == \"Hello, Jenkins!\"<\/span>) {\r\n            echo<\/span> \"Variable value matches!\"<\/span>\r\n        } else<\/span> {\r\n            echo<\/span> \"Variable value does not match!\"<\/span>\r\n        }\r\n    }\r\n}\r\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
In the above example, we define a variable myVariable<\/code> using the def<\/code> keyword and assign it the value \"Hello, Jenkins!\"<\/code>. We then echo the variable’s value and demonstrate its usage within an if<\/code> statement.<\/p>\n\n\n\n
Note that the node<\/code> block is used to allocate a Jenkins agent to execute the pipeline steps. Inside the stage<\/code> block, you can define and use variables as needed.<\/p>\n\n\n\n
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Types of variables in Scripted Pipeline<\/h2>\n\n\n\n
String Variable:<\/h3>\n\n\n\n
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node {\r\n    stage('Example'<\/span>) {\r\n        \/\/ Define a string variable<\/span>\r\n        def myString = \"Hello, Jenkins!\"<\/span>\r\n\r\n        \/\/ Access and use the string variable<\/span>\r\n        echo<\/span> myString\r\n    }\r\n}\r\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
\n\n\n\n
Integer Variable:<\/h3>\n\n\n\n
\n\n\n
node {\r\n    stage('Example'<\/span>) {\r\n        \/\/ Define an integer variable<\/span>\r\n        def myInteger = 10<\/span>\r\n\r\n        \/\/ Access and use the integer variable<\/span>\r\n        echo<\/span> myInteger\r\n    }\r\n}\r\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
\n\n\n\n
Boolean Variable:<\/h3>\n\n\n\n
\n\n\n
node {\r\n    stage('Example'<\/span>) {\r\n        \/\/ Define a boolean variable<\/span>\r\n        def myBoolean = true<\/span>\r\n\r\n        \/\/ Access and use the boolean variable<\/span>\r\n        if<\/span> (myBoolean) {\r\n            echo<\/span> \"The boolean variable is true.\"<\/span>\r\n        } else<\/span> {\r\n            echo<\/span> \"The boolean variable is false.\"<\/span>\r\n        }\r\n    }\r\n}\r\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
\n\n\n\n
List Variable<\/h3>\n\n\n\n
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node {\r\n    stage('Example'<\/span>) {\r\n        \/\/ Define a list variable<\/span>\r\n        def myList = [\"apple\"<\/span>, \"banana\"<\/span>, \"orange\"<\/span>]\r\n\r\n        \/\/ Access and use the list variable<\/span>\r\n        for<\/span> (item in myList) {\r\n            echo<\/span> item\r\n        }\r\n    }\r\n}\r\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
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Map Variable:<\/h3>\n\n\n\n
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node {\r\n    stage('Example'<\/span>) {\r\n        \/\/ Define a map variable<\/span>\r\n        def myMap = [name: \"John\"<\/span>, age: 30<\/span>, city: \"New York\"<\/span>]\r\n\r\n        \/\/ Access and use the map variable<\/span>\r\n        echo<\/span> \"Name: ${myMap.name}\"<\/span>\r\n        echo<\/span> \"Age: ${myMap.age}\"<\/span>\r\n        echo<\/span> \"City: ${myMap.city}\"<\/span>\r\n    }\r\n}\r\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
\n","protected":false},"excerpt":{"rendered":"
In a scripted Jenkins pipeline, you can use different types of variables depending on your requirements. Here are examples of different variable types commonly used in scripted pipelines: In a… <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[2],"tags":[],"class_list":["post-35667","post","type-post","status-publish","format-standard","hentry","category-uncategorised"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/35667","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=35667"}],"version-history":[{"count":1,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/35667\/revisions"}],"predecessor-version":[{"id":35668,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/35667\/revisions\/35668"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=35667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=35667"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=35667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}