add disable profiles docs (#410)

* Enhance CLI and Profiles documentation with environment variable examples and details on disabling profiles feature

* Remove deprecated environment variable examples and notes related to the profiles feature in CLI documentation

* Enhance CLI and Profiles documentation with additional environment variable examples and details on disabling update settings functionality

* Update cli.mdx

---------

Co-authored-by: Maycon Santos <[email protected]>

Author: hakansa

src/pages/how-to/cli.mdx

@@ -47,6 +47,21 @@ netbird up
 ```
 The `up` command would process the variables, read the configuration file on `/opt/netbird/config.json` and attempt to connect to the management service running at `https://api.self-hosted.com:33073`.
 
+Here are some additional examples of environment variables:
+```shell
+# Disable profiles feature
+export NB_DISABLE_PROFILES=true
+
+# Disable update settings functionality
+export NB_DISABLE_UPDATE_SETTINGS=true
+
+# Set custom log level
+export NB_LOG_LEVEL=debug
+
+# Set custom daemon address
+export NB_DAEMON_ADDR="tcp://localhost:8080"
+```
+
 ## Commands
 ### up
 Single command to log in and start the NetBird client. It can send a signal to the daemon service or run in the foreground with the flag `--foreground-mode`.
@@ -432,6 +447,19 @@ You can set a custom configuration path with the flag `--config`
 sudo netbird service install --config /opt/netbird/config.json
 ```
 
+#### Service-specific flags
+```shell
+      --disable-profiles          Disables profiles feature. If enabled, the client will not be able to change or edit any profile. To persist this setting, use: netbird service install --disable-profiles
+      --disable-update-settings   Disables update settings feature. If enabled, the client will not be able to change or edit any settings. To persist this setting, use: netbird service install --disable-update-settings
+
+```
+
+<Note>
+    The `--disable-profiles` flag can also be set using the `NB_DISABLE_PROFILES` environment variable. Set it to any value (e.g., `true`, `1`, `yes`) to enable this feature.
+    
+    The `--disable-update-settings` flag can also be set using the `NB_DISABLE_UPDATE_SETTINGS` environment variable. Set it to any value (e.g., `true`, `1`, `yes`) to enable this feature.
+</Note>
+
 ### service uninstall
 The uninstall uninstalls the daemon service from the system.
 #### Usage
@@ -448,6 +476,10 @@ The minimal form of running the command is:
 sudo netbird service start
 ```
 
+<Note>
+    If you installed the service with `--disable-profiles` or `--disable-update-settings`, these settings will persist and the respective features will remain disabled when the service starts.
+</Note>
+
 ### service stop
 Stops the daemon service
 #### Usage
@@ -456,6 +488,34 @@ The minimal form of running the command is:
 sudo netbird service stop
 ```
 
+### service restart
+Restarts the daemon service
+#### Usage
+The minimal form of running the command is:
+```shell
+sudo netbird service restart
+```
+
+### service status
+Shows the status of the daemon service
+#### Usage
+The minimal form of running the command is:
+```shell
+sudo netbird service status
+```
+
+### service reconfigure
+Reconfigures the daemon service with current settings
+#### Usage
+The minimal form of running the command is:
+```shell
+sudo netbird service reconfigure
+```
+
+<Note>
+    If you installed the service with `--disable-profiles` or `--disable-update-settings`, these settings will persist and the respective features will remain disabled after reconfiguration.
+</Note>
+
 ### debug
 The `debug` command provides tools for diagnosing and understanding the internal operations of the NetBird daemon.
 

src/pages/how-to/profiles.mdx

@@ -77,6 +77,38 @@ If you're upgrading from NetBird below version `0.52.0` that did not support pro
 copied to a new profile named  `default`.
 * The `default` profile is set as active, and you can start using it immediately.
 
+## Disabling Profiles Feature
+
+In some environments, you may want to disable the profiles feature entirely. This can be useful for:
+
+* **Managed environments** where users should not be able to switch between different NetBird accounts
+* **Security policies** that require a single, fixed configuration
+* **Automated deployments** where profile switching could interfere with operations
+
+To disable the profiles feature, you can use the `--disable-profiles` flag when installing the service:
+
+```shell
+sudo netbird service install --disable-profiles
+```
+
+Alternatively, you can set the `NB_DISABLE_PROFILES` environment variable:
+
+```shell
+export NB_DISABLE_PROFILES=true
+sudo netbird service install
+```
+
+When profiles are disabled:
+* Users cannot create, switch, or remove profiles
+* The profile management UI is disabled
+* All profile-related CLI commands are disabled
+* The client operates with a single, fixed configuration
+* Profile switching is completely prevented
+
+<Note>
+    You can also disable update settings functionality using the `--disable-update-settings` flag or `NB_DISABLE_UPDATE_SETTINGS` environment variable. This prevents users from modifying any configuration settings, providing an additional layer of control in managed environments.
+</Note>
+
 ---
 
 ## Profile CLI Commands