TechTrekwithAJ - Check discovery status (#2407)

* Create TechTrekwithAJ-PopulateManufacturer.js

This code will help to populate the Manufacturer if that empty on CMDB_CI table

* Create TechTrekwithAJ-PopulateManufacturerReadME.md

* Delete CMDB/TechTrekwithAJ-PopulateManufacturerReadME.md

* Update TechTrekwithAJ-PopulateManufacturer.js

This script is used in ServiceNow to automatically fill in the missing manufacturer information for Configuration Items (CIs) in the CMDB (Configuration Management Database).

1. Predefined Mapping:
The script starts with a list of known model names and their corresponding manufacturer names.For example, a model called ThinkPad T14 is made by Lenovo, and MacBook Pro 16 is made by Apple
2. Look Up Manufacturer:
    * It defines a function that looks up the manufacturer’s record in the core_company table (based on the name) and gets its unique ID (sys_id).
3.  Find CIs Missing a Manufacturer:
    * The script goes through all CIs in the cmdb_ci table where the manufacturer field is empty.
4.  Update Missing Manufacturer:
    * For each of those CIs:
        * It checks the model name.
        * If the model is in the predefined mapping:
            * It looks up the correct manufacturer in the core_company table.
            * It updates the CI record by setting the manufacturer field with the correct sys_id.
            * It also logs that the update was successful.
        * If the manufacturer is not found in the system, it logs a warning.
5.  Final Log:
    * After going through all matching CIs, it logs how many records were successfully updated.

* Create TechTrekwithAJ-CheckDiscoveryStatus.js

Processes a list of IPs, finds matching CIs in cmdb_ci_computer, checks their discovery history, retrieves the related Discovery Status number, and logs the results as JSON. Logs a message if no CI or history is found.

* Create TechTrekwithAJ-CheckDiscoveryStatusReadME.md

This script is a ServiceNow troubleshooting utility designed to help administrators quickly check if specific IP addresses were successfully discovered by the Discovery process.

* Delete CMDB/TechTrekwithAJ-PopulateManufacturer.js

* Rename TechTrekwithAJ-CheckDiscoveryStatusReadME.md to ReadME.md

* Rename TechTrekwithAJ-CheckDiscoveryStatus.js to CheckDiscoveryStatus.js

Author: TechTrekwithAJ

Specialized Areas/ITOM/Track Discovery Status/CheckDiscoveryStatus.js

@@ -0,0 +1,74 @@
+// Configuration //
+// Define the list of IP addresses to check
+var ipList = [
+    '192.168.1.35',
+    '192.168.1.27',
+    '192.168.1.15'
+];
+
+// Main Script //
+var results = [];
+
+ipList.forEach(function(ip) {
+    var result = {
+        ip_address: ip,
+        discovery_status_number: ''
+    };
+
+    //Find CI (Computer) with matching IP
+    var ciGR = new GlideRecord('cmdb_ci_computer');
+    ciGR.addQuery('ip_address', ip);
+    ciGR.query();
+
+    if (ciGR.next()) {
+        var ciSysId = ciGR.getUniqueValue();
+
+        //Check if CI has an entry in discovery_device_history
+        var historyGR = new GlideRecord('discovery_device_history');
+        historyGR.addQuery('ci', ciSysId);
+        historyGR.orderByDesc('sys_created_on');
+        historyGR.query();
+
+        if (historyGR.next()) {
+          
+            //Get discovery status number (e.g., DIS123456)
+            var statusGR = new GlideRecord('discovery_status');
+            if (statusGR.get(historyGR.discovery_status.toString())) {
+                result.discovery_status_number = statusGR.number.toString();
+            } else {
+                result.discovery_status_number = 'Discovery status record not found';
+            }
+        } else {
+            result.discovery_status_number = 'No discovery record found';
+        }
+    } else {
+        result.discovery_status_number = 'No CI found with this IP';
+    }
+
+    results.push(result);
+});
+
+// Output results to system log in JSON format
+
+gs.info('IP to Discovery Status Mapping:\n' + JSON.stringify(results, null, 2));
+
+
+
+
+//Output//
+
+[
+  {
+    "ip_address": "192.168.1.35",
+    "discovery_status_number": "DIS123145"
+  },
+  {
+    "ip_address": "192.168.1.27",
+    "discovery_status_number": "DIS123189"
+  },
+  {
+    "ip_address": "192.168.1.15",
+    "discovery_status_number": "No discovery record found"
+  }
+]
+

Specialized Areas/ITOM/Track Discovery Status/ReadME.md

@@ -0,0 +1,10 @@
+Defines a list of IP addresses to check (hardcoded in the script).
+Example IPs: 192.168.1.35, 192.168.1.27, 192.168.1.15.
+For each IP address in the list:
+It looks up the CI (Configuration Item) in the cmdb_ci_computer table with a matching IP.
+If a CI is found:
+It checks the discovery_device_history table to see if that CI was discovered by ServiceNow Discovery.
+If discovery history exists, it finds the related Discovery Status record (discovery_status table) and gets its number (like DIS123456).
+If no CI or discovery record is found, it notes the reason in the result.
+Compiles all results (IP + discovery status or error message) into a list.
+Prints the results in a clear JSON format in the system logs, making it easy to read and review.