add lm-config (#2132)

docs-2.0/9.about-license/2.license-management-suite/3.license-manager.md

@@ -12,6 +12,7 @@ This article introduces how to deploy and use an LM service, as well as how to c
   !!! note
 
         LM installation packages are sent to you by email after you purchase a license.
+- LM uses 9119 as the default port, make sure that port is not occupied.
 
 ## Notes
 
@@ -36,7 +37,7 @@ An LM can be installed on Linux amd64 or arm64 systems or installed through Dash
 
   1. Create the LM service file `/etc/systemd/system/yueshu-license-manager.service` with the following contents:
 
-    ```
+    ```bash
     [Unit]
     Description=License Manager
     [Service]
@@ -52,7 +53,7 @@ An LM can be installed on Linux amd64 or arm64 systems or installed through Dash
 
   2. Start the LM service:
 
-    ```
+    ```bash
     sudo systemctl start yueshu-license-manager
     ```
 
@@ -81,7 +82,7 @@ An LM can be installed on Linux amd64 or arm64 systems or installed through Dash
 
 3. Set up LM to start automatically on boot.
 
-  ```
+  ```bash
   sudo systemctl enable yueshu-license-manager
   ```
 
@@ -104,14 +105,44 @@ An LM can be installed on Linux amd64 or arm64 systems or installed through Dash
 
 3. Set up LM to start automatically on boot.
 
-  ```
+  ```bash
   sudo systemctl enable yueshu-license-manager
   ```
 
 ### Using Dashboard
 
 LM can be installed and started through Dashboard. For more information, see [Connect to Dashboard](../../nebula-dashboard-ent/3.connect-dashboard.md).
 
+## View LM configuration file
+
+The configuration file name for LM is `nebula-license-manager.yaml`.
+
+- For RPM and DEB packages, the default path is `/usr/local/yueshu-license-manager/etc/nebula-license-manager.yaml`.
+
+- For the TAR package, the path is `yueshu-license-manager/etc/nebula-license-manager.yaml` under the LM installation directory.
+
+The contents of the LM configuration file are as follows:
+
+```yaml
+Name: nebula-license-manager  
+Host: 0.0.0.0                 # The host address LM binds to.   
+Port: 9119                    # The port number LM listens on. The default is 9119.
+Timeout: 3000                 # The timeout period for LM waiting for client requests, in milliseconds. The default is 3000 milliseconds.   
+DataPath: data                # The path for storing LM status data.
+Notify:                       # LM notification related configuration. 
+  Mail:                       # Mail notification related configuration.
+    Host: ""                  # SMTP server address.
+    Port: 465                 # SMTP server port number.
+    User: ""                  # SMTP email.
+    Password: ""              # SMTP email password.  
+    To: []                    # The list of emails to receive notifications.   
+Log:                          # Logging related configuration.
+  Mode: file                  # The logging mode. It can be file (output to file) or console (output to console). The default is file.
+  Path: logs                  # The path for storing log files.
+  Level: info                 # The log level. It can be debug, info, error, or severe. The default is info. 
+  KeepDays: 30                # The longest number of days to keep logs. The default is 30 days.
+```
+
 ## Use LM
 
 After your LM starts, in the LM installation path you can use the LM CLI to view license information.