add job checker

vars/getJobStatus.groovy

@@ -0,0 +1,24 @@
+import groovy.json.JsonSlurper
+
+def call(String jobName) {
+    def jobURL = "http://jenkins-server.default.svc.cluster.local:8080/job/${jobName}/api/json"
+    def jenkinsUser = admin
+    def jenkinsToken = Knd6GttfuDRZI0r7EkCiPQ
+
+    // Fetch JSON response from Jenkins API
+    def response = sh(script: "curl -s -u '${jenkinsUser}:${jenkinsToken}' ${jobURL}", returnStdout: true).trim()
+
+    // Parse JSON
+    def jsonSlurper = new JsonSlurper()
+    def jobData = jsonSlurper.parseText(response)
+
+    // Extract first build number
+    def firstBuildNumber = jobData.firstBuild?.number
+
+    if (firstBuildNumber == null) {
+        error("Pipeline '${jobName}' has **never** run! 🚨 Stopping execution.")
+    }
+
+    echo "Pipeline '${jobName}' has **run at least once** ✅ First build number: ${firstBuildNumber}"
+    return firstBuildNumber
+}