maybe fix fix it?

Jenkinsfile

@@ -28,11 +28,8 @@ pipeline {
     stage('Deploy to Nomad') {
       steps {
         script {
-           // Calculate the hash of your Docker image (or your application code)
-          def imageHash = sh(script: "docker images --no-trunc $IMAGE_NAME | grep latest | awk '{print \$3}'", returnStdout: true).trim()
-
           // Read the jobspec.json file
-          def jobSpec = readJSON file: 'jobspec.json'
+          def jobSpec = readFile 'jobspec.json'
 
           sh 'curl -X POST -H "Content-Type: application/json" -d "$jobSpec" http://nomad.service.consul:4646/v1/jobs'
         }