groovy - Jenkins Pipelines: How to use withCredentials() from a shared-variable script

Groovy - Jenkins Pipelines: How to use withCredentials() from a shared-variable script

In Jenkins Pipeline, the withCredentials step is typically used to safely handle sensitive information, such as usernames and passwords. If you want to use withCredentials from a shared-variable script, you can do so by passing the script parameter to the shared-variable script.

Here's an example:

  1. Create a Shared-Variable Script: Create a Groovy script that defines a function using the withCredentials step. Save it as a shared variable script, e.g., sharedScript.groovy.

    // sharedScript.groovy def performWithCredentials(script) { script.withCredentials([usernamePassword(credentialsId: 'myCredentialsId', usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) { // Your logic using the credentials here echo "Username: ${env.USERNAME}" echo "Password: ${env.PASSWORD}" } }

    Replace 'myCredentialsId' with the actual ID of your credentials stored in Jenkins.

  2. Use the Shared-Variable Script in Jenkins Pipeline: In your Jenkins Pipeline script, you can use the shared-variable script by calling the function defined in it and passing the script parameter.

    // Jenkinsfile // Load the shared-variable script def sharedScript = load 'sharedScript.groovy' pipeline { agent any stages { stage('Use withCredentials from Shared Script') { steps { script { // Call the function from the shared-variable script sharedScript.performWithCredentials(this) } } } } }

    In this example, the this parameter is passed to the performWithCredentials function, which allows the shared-variable script to access the script object and use the withCredentials step.

Note: Ensure that the withCredentials step is used within a script block in the shared-variable script to correctly access the script object.

Adjust the shared-variable script and Jenkins Pipeline script according to your actual credentials ID and logic requirements.

Examples

  1. "Jenkins pipeline withCredentials in shared library"

    • Code:
      // In your shared library script def performSensitiveOperation() { withCredentials([usernamePassword(credentialsId: 'myCredentials', usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) { // Your sensitive operation using USERNAME and PASSWORD echo "Username: ${USERNAME}, Password: ${PASSWORD}" } }
    • Description: Demonstrates how to use withCredentials in a shared library script to securely handle sensitive information.

  2. "Jenkins pipeline shared library withCredentials usage"

    • Code:
      // In your Jenkins pipeline @Library('my-shared-library') _ performSensitiveOperation()
    • Description: Calls the performSensitiveOperation function from a shared library in a Jenkins pipeline, utilizing withCredentials for credential handling.

  3. "Jenkins pipeline withCredentials shared library example"

    • Code:
      // In your shared library script def performSensitiveOperation(credentialsId) { withCredentials([usernamePassword(credentialsId: credentialsId, usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) { // Your sensitive operation using USERNAME and PASSWORD echo "Username: ${USERNAME}, Password: ${PASSWORD}" } }
    • Description: Expands the shared library script to accept a credentialsId parameter for dynamic credential usage.

  4. "Jenkins pipeline withCredentials shared library return values"

    • Code:
      // In your shared library script def performSensitiveOperation(credentialsId) { def result withCredentials([usernamePassword(credentialsId: credentialsId, usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) { // Your sensitive operation using USERNAME and PASSWORD result = "Username: ${USERNAME}, Password: ${PASSWORD}" } return result }
    • Description: Enhances the shared library script to capture and return the result of the sensitive operation.

  5. "Jenkins pipeline withCredentials in external script"

    • Code:
      // In your external Groovy script def credentialsId = 'myCredentials' withCredentials([usernamePassword(credentialsId: credentialsId, usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) { // Your sensitive operation using USERNAME and PASSWORD echo "Username: ${USERNAME}, Password: ${PASSWORD}" }
    • Description: Illustrates how to use withCredentials directly in an external Groovy script.

  6. "Jenkins pipeline withCredentials usernamePassword vs string"

    • Code:
      // In your shared library script def performSensitiveOperation(credentialsId) { withCredentials([string(credentialsId: credentialsId, variable: 'MY_SECRET')]) { // Your sensitive operation using MY_SECRET echo "Secret: ${MY_SECRET}" } }
    • Description: Contrasts the usage of usernamePassword and string in withCredentials for different credential types.

  7. "Jenkins pipeline withCredentials environment variable"

    • Code:
      // In your shared library script def performSensitiveOperation(credentialsId) { withCredentials([usernamePassword(credentialsId: credentialsId, usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) { // Set environment variables for use in subsequent steps env.MY_USERNAME = USERNAME env.MY_PASSWORD = PASSWORD } }
    • Description: Demonstrates setting environment variables within the withCredentials block for later use in the pipeline.

  8. "Jenkins pipeline withCredentials pipeline script example"

    • Code:
      // In your Jenkins pipeline script script { def credentialsId = 'myCredentials' withCredentials([usernamePassword(credentialsId: credentialsId, usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) { // Your sensitive operation using USERNAME and PASSWORD echo "Username: ${USERNAME}, Password: ${PASSWORD}" } }
    • Description: Embeds the usage of withCredentials directly within the Jenkins pipeline script.

  9. "Jenkins pipeline withCredentials multiple credentials"

    • Code:
      // In your shared library script def performSensitiveOperation(credentialsId1, credentialsId2) { withCredentials([usernamePassword(credentialsId: credentialsId1, usernameVariable: 'USER1', passwordVariable: 'PASS1'), usernamePassword(credentialsId: credentialsId2, usernameVariable: 'USER2', passwordVariable: 'PASS2')]) { // Your sensitive operation using USER1, PASS1, USER2, PASS2 echo "User1: ${USER1}, Pass1: ${PASS1}, User2: ${USER2}, Pass2: ${PASS2}" } }
    • Description: Extends the shared library script to handle multiple sets of credentials.

  10. "Jenkins pipeline withCredentials Jenkinsfile syntax"

    • Code:
      // In your Jenkinsfile script { def credentialsId = 'myCredentials' withCredentials([usernamePassword(credentialsId: credentialsId, usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) { // Your sensitive operation using USERNAME and PASSWORD echo "Username: ${USERNAME}, Password: ${PASSWORD}" } }
    • Description: Outlines the usage of withCredentials within a Jenkinsfile, which is the declarative pipeline syntax.

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