[Main][Task]27742145: Change nonOverrideCfgs to be added only during initialization (#2332)

* cfg sync override

* update

extensions/applicationinsights-cfgsync-js/README.md

@@ -19,7 +19,7 @@ Refer to [our GitHub page](https://github.com/microsoft/ApplicationInsights-JS)
 | onCfgChangeReceive | function<br>[Optional] | null | Overrides callback function to handle event details when changes are received via event listener. |
 | overrideSyncFn | function<br>[Optional] | null | Overrides sync() function to broadcast changes. |
 | overrideFetchFn | function<br>[Optional] | null | Overrides fetch function to get config from cfgUrl when cfgUrl is defined. |
-| nonOverrideConfigs | NonOverrideCfg<br>[Optional] | {instrumentationKey: true, connectionString: true, endpointUrl: true } | When current instance is set with syncMode: `Receive`, config fields under nonOverrideConfigs will NOT be changed by any confif details sent out from other instances. |
+| nonOverrideConfigs | NonOverrideCfg<br>[Optional] | {instrumentationKey: true, connectionString: true, endpointUrl: true } | When current instance is set with syncMode: `Receive`, config fields under nonOverrideConfigs will NOT be changed by any confif details sent out from other instances. NOTE: this config will be ONLY applied during initialization, so it won't be changed dynamically. |
 | scheduleFetchTimeout | number<br>[Optional] | 30 mins | Identifies the time interval (in milliseconds) for fetching config details from cfgUrl when cfgUrl is defined. If set to 0, the fetch operation will only be called once during initialization. |
 
 

extensions/applicationinsights-cfgsync-js/Tests/Unit/src/cfgsyncplugin.tests.ts

@@ -98,12 +98,14 @@ export class CfgSyncPluginTests extends AITestClass {
                 this.core.config.extensionConfig[this.identifier].syncMode = ICfgSyncMode.Receive;
                 this.core.config.extensionConfig[this.identifier].receiveChanges = true;
                 this.core.config.extensionConfig[this.identifier].blkCdnCfg = true;
+                this.core.config.extensionConfig[this.identifier].nonOverrideConfigs = {};
               
                 this.clock.tick(1);
                 targets = this.mainInst["_getDbgPlgTargets"]();
                 Assert.equal(targets[0], true, "auto sync should not be changed to false dynamically");
                 Assert.equal(targets[1], false, "receive changes should not be changed dynamically");
                 Assert.equal(targets[3], true, "blkCdnCfg changes should be changed dynamically");
+                Assert.deepEqual(targets[4], defaultNonOverrideCfg, "nonOverrideCfg changes should not be changed dynamically");
                 Assert.equal(patchEvnSpy.callCount, 3, "event dispatch should be called again");
                 curMainCfg = this.mainInst.getCfg();
                 Assert.deepEqual(curMainCfg, this.core.config, "main config should be set test2");

extensions/applicationinsights-cfgsync-js/src/CfgSyncPlugin.ts

@@ -106,7 +106,7 @@ export class CfgSyncPlugin extends BaseTelemetryPlugin implements ICfgSyncPlugin
             };
 
             _self["_getDbgPlgTargets"] = () => {
-                return [_broadcastChanges, _receiveChanges, _evtName, _blkCdnCfg];
+                return [_broadcastChanges, _receiveChanges, _evtName, _blkCdnCfg, _nonOverrideConfigs];
             };
     
             function _initDefaults() {
@@ -179,7 +179,8 @@ export class CfgSyncPlugin extends BaseTelemetryPlugin implements ICfgSyncPlugin
                 _overrideSyncFn = _extensionConfig.overrideSyncFn;
                 _overrideFetchFn = _extensionConfig.overrideFetchFn;
                 _onCfgChangeReceive = _extensionConfig.onCfgChangeReceive;
-                _nonOverrideConfigs = _extensionConfig.nonOverrideConfigs;
+                _nonOverrideConfigs = _extensionConfig.nonOverrideConfigs; // override values should not be changed
+               
                 _fetchTimeout = _extensionConfig.scheduleFetchTimeout;
                 _fetchFn = _getFetchFnInterface();
                 _retryCnt = 0;

extensions/applicationinsights-cfgsync-js/src/Interfaces/ICfgSyncConfig.ts

@@ -38,7 +38,8 @@ export interface ICfgSyncConfig {
      */
     overrideFetchFn?: SendGetFunction;
     /**
-     * When current instance is set with syncMode: `Receive`, config fields under nonOverrideConfigs will NOT be changed by any confif details sent out from other instances.
+     * When current instance is set with syncMode: `Receive`, config fields under nonOverrideConfigs will NOT be changed by any config details sent out from other instances.
+     * NOTE: this config will be ONLY applied during initialization, so it won't be changed dynamically
      * @default {instrumentationKey:true,connectionString:true,endpointUrl:true}
      */
     nonOverrideConfigs?: NonOverrideCfg;