adding input param using api

Jenkinsfile

 pipeline {
     agent any
 
+    parameters {
+        // Define a string parameter for the tag selection
+        string(name: 'TAG', defaultValue: '', description: 'Enter the tag to build from (leave empty to fail the build)')
+    }
+
     stages {
         stage('Select Tag') {
             steps {
@@ -13,11 +18,12 @@ pipeline {
                         error "No tags found in the repository."
                     }
 
-                    // Prompt the user to select a tag
-                    def selectedTag = input(
-                        message: 'Select a tag to build from:',
-                        parameters: [choice(name: 'Tag', choices: tags, description: 'Select a tag to build the Docker image')]
-                    )
+                    // Check if the provided TAG parameter is valid
+                    if (!params.TAG || !tags.contains(params.TAG)) {
+                        error "Invalid tag selected. Available tags: ${tags.join(', ')}"
+                    }
+
+                    def selectedTag = params.TAG
 
                     // Tag and build the Docker image with the selected tag
                     sh """