asking user for input

Jenkinsfile

@@ -2,42 +2,30 @@ pipeline {
     agent any
 
     stages {
-        stage('Build') {
+        stage('List and Select Tag') {
             steps {
                 script {
-                    // Get the current commit SHA and take the first 7 characters
-                    def commitSha = env.GIT_COMMIT.take(7)
+                    // Fetch all tags from Git
+                    def tags = sh(script: "git tag", returnStdout: true).trim().split("\n")
 
-                    // Tag the Docker image with the short commit SHA
-                    sh """
-                    docker buildx build -t helloworld:${commitSha} .
-                    docker run --rm helloworld:${commitSha}
-                    """
+                    if (tags.size() == 0) {
+                        error("No tags found in the repository.")
+                    }
+
+                    // Show dropdown for user to select a tag
+                    def selectedTag = input message: 'Select a Git tag to deploy:', 
+                                          parameters: [choice(name: 'TAG', choices: tags.join("\n"), description: 'Available Git tags')]
+
+                    // Print the selected tag
+                    echo "You selected the tag: ${selectedTag}"
                 }
             }
         }
     }
 
     post {
-        failure {
-            script {
-                // Get the last successful build
-//                def lastSuccessfulBuild = currentBuild.rawBuild.getPreviousSuccessfulBuild()
-
- //               if (lastSuccessfulBuild) {
-                    // Redeploy the last successful build
-  //                  echo "Redeploying build #${lastSuccessfulBuild.getId()}..."
-   //                 echo "Last successful build was #${lastSuccessfulBuild.getNumber()}"
-
-                    // Example: Call your deployment script or steps here
-                    // sh "deploy-script.sh ${lastSuccessfulBuild.getNumber()}"
-    //            } else {
-     //               error "No successful build found to deploy."
-      //          }
-                def previousCommitSha = sh(script: 'git rev-parse HEAD~1', returnStdout: true).trim()
-                def shortPreviousCommitSha = previousCommitSha.take(7)
-                sh "docker run --rm helloworld:${shortPreviousCommitSha}"
-            }
+        always {
+            echo "Pipeline execution finished."
         }
     }
 }