feat: Set application name via command line with the .msi installer (#…

…2648)

* Initial code

* InnerText, not Value

* Working solution for setting app pool naming

* Cleanup

src/Agent/MsiInstaller/Installer/Product.wxs

@@ -172,6 +172,7 @@ SPDX-License-Identifier: Apache-2.0
  <CustomAction Id="SaveDeferredCustomActionData" DllEntry="SaveDeferredCustomActionData" Execute="immediate" Return="check" BinaryRef="CustomActionsDll" />
  <CustomAction Id="MigrateConfiguration" DllEntry="MigrateConfiguration" Execute="deferred" Impersonate="no" Return="check" BinaryRef="CustomActionsDll" />
  <CustomAction Id="SetLicenseKey" DllEntry="SetLicenseKey" Execute="deferred" Impersonate="no" Return="check" BinaryRef="CustomActionsDll" />
+ <CustomAction Id="SetAppName" DllEntry="SetAppName" Execute="deferred" Impersonate="no" Return="check" BinaryRef="CustomActionsDll" />
  <CustomAction Id="CleanupPreviousInstall" DllEntry="CleanupPreviousInstall" Execute="deferred" Impersonate="no" Return="check" BinaryRef="CustomActionsDll" />
  <CustomAction Id="RestartIis" DllEntry="RestartIis" Impersonate="yes" BinaryRef="CustomActionsDll" />
  <CustomAction Id="CloseStatusMonitor" DllEntry="CloseStatusMonitor" Impersonate="yes" BinaryRef="CustomActionsDll" />

src/Agent/MsiInstaller/InstallerActions/CustomActions.cs

@@ -35,6 +35,8 @@ public static ActionResult SaveDeferredCustomActionData(Session session)
  var customActionData = new CustomActionData
  {
  { "NR_LICENSE_KEY", session["NR_LICENSE_KEY"] },
+ { "NR_APP_NAME", session["NR_APP_NAME"] },
+ { "NR_USE_APP_POOL_NAMING", session["NR_USE_APP_POOL_NAMING"] },
  { "NETAGENTCOMMONFOLDER", session["NETAGENTCOMMONFOLDER"] },
  { "LOGSFOLDER", session["LOGSFOLDER"] },
  { "NETAGENTFOLDER", session["NETAGENTFOLDER"] },
@@ -43,6 +45,7 @@ public static ActionResult SaveDeferredCustomActionData(Session session)
 
  session.DoAction("MigrateConfiguration", customActionData);
  session.DoAction("SetLicenseKey", customActionData);
+ session.DoAction("SetAppName", customActionData);
  session.DoAction("CleanupPreviousInstall", customActionData);
 
  return ActionResult.Success;
@@ -111,6 +114,84 @@ public static ActionResult SetLicenseKey(Session session)
  return ActionResult.Success;
  }
 
+ [CustomAction]
+ public static ActionResult SetAppName(Session session)
+ {
+ try
+ {
+ var path = session.CustomActionData["NETAGENTCOMMONFOLDER"] + @"\newrelic.config";
+
+ // appName will be an empty string if the property wasn't set via the command line,
+ // OR if the property was set with an empty string (NR_APP_NAME="")
+ var appName = session.CustomActionData["NR_APP_NAME"];
+ var useAppPoolNaming = session.CustomActionData["NR_USE_APP_POOL_NAMING"].Equals(bool.TrueString, StringComparison.CurrentCultureIgnoreCase)
+ || session.CustomActionData["NR_USE_APP_POOL_NAMING"].Equals("1");
+
+ session.Log($"SetAppName: appName={appName}, useAppPoolNaming={useAppPoolNaming}");
+ if (string.IsNullOrEmpty(appName) && !useAppPoolNaming)
+ {
+ session.Log("NR_APP_NAME was not set or was set to an empty string, and NR_USE_APP_POOL_NAMING was not set or was not set to true. Application name not modified.");
+ return ActionResult.Success;
+ }
+
+ var document = new XmlDocument();
+ document.Load(path);
+ var namespaceManager = new XmlNamespaceManager(document.NameTable);
+ namespaceManager.AddNamespace("newrelic-config", "urn:newrelic-config");
+
+ var applicationNode = document.SelectSingleNode("/newrelic-config:configuration/newrelic-config:application", namespaceManager);
+ if (applicationNode == null)
+ {
+ session.Log("Unable to locate /configuration/application node in newrelic.config. Application name not set.");
+ return ActionResult.Success;
+ }
+
+ // NR_USE_APP_POOL_NAMING takes precedence over anything set in NR_APP_NAME
+ if (useAppPoolNaming)
+ {
+ session.Log("NR_APP_NAME = UseAppPoolNaming, deleting name nodes from application element");
+ var childNodes = applicationNode.ChildNodes;
+ foreach (XmlNode childNode in childNodes)
+ {
+ session.Log($"found child node with name {childNode.Name}");
+ if (childNode.Name.Equals("name"))
+ {
+ session.Log("Deleting 'name' node");
+ applicationNode.RemoveChild(childNode);
+ }
+ }
+ document.Save(session.CustomActionData["NETAGENTCOMMONFOLDER"] + @"\newrelic.config");
+ session.Log("newrelic.config saved with application name elements removed.");
+ return ActionResult.Success;
+ }
+
+ // If we get here, NR_USE_APP_POOL_NAMING was not set or not set to true,
+ // and NR_APP_NAME has a non-empty value. Set the app name to NR_APP_NAME.
+ // If no <name>appName</name> node exists, create it
+ XmlNode applicationNameNode;
+ applicationNameNode = document.SelectSingleNode("/newrelic-config:configuration/newrelic-config:application/newrelic-config:name", namespaceManager);
+ if (applicationNameNode == null)
+ {
+ session.Log("Unable to locate existing /configuration/application/name node in newrelic.config, creating a new one.");
+ var newNameNode = document.CreateElement("name", "urn:newrelic-config");
+ applicationNameNode = applicationNode.AppendChild(newNameNode);
+ }
+ session.Log("/configuration/application/name node found or created in newrelic.config");
+
+ applicationNameNode.InnerText = appName;
+ session.Log("Application name set to " + appName);
+
+ document.Save(session.CustomActionData["NETAGENTCOMMONFOLDER"] + @"\newrelic.config");
+ session.Log("newrelic.config saved with updated application name.");
+ }
+ catch (Exception exception)
+ {
+ session.Log("Exception while attempting to set the application name in newrelic.config.\n{0}", exception);
+ }
+
+ return ActionResult.Success;
+ }
+
  [CustomAction]
  public static ActionResult CleanupPreviousInstall(Session session)
  {