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Servy CLI

Akram El Assas edited this page May 26, 2026 · 126 revisions

Table of Contents

  1. Introduction
  2. Basic Usage
  3. Command Help
  4. Install Command
  5. Additional Commands
  6. Tips
  7. See Also

Important

Console UI Compatibility If your app tries to visually update the command prompt (like clearing the screen or moving the cursor), it will crash when running as a background service since services don't have visible windows. To fix this without changing your code, simply turn on --enableConsoleUI option in the service configuration while installing your service.

Introduction

Servy includes a command-line interface (CLI) designed for full scripting, automated deployments, and seamless integration into CI/CD pipelines.

The CLI offers a lightweight, script-friendly alternative to the desktop app, focusing on automation and headless use cases while leveraging the same core service management logic as the desktop application.

After installation, the Servy directory is automatically added to the system PATH environment variable. This allows you to run servy-cli.exe directly from any elevated Command Prompt or PowerShell session.

Note

In servy-cli, the equals sign (=) is not supported when using single-character shortcuts (like -c or -p).

Basic Usage

To get started, open an elevated Command Prompt or PowerShell window and run:

PS> servy-cli help
Servy.CLI <version>+<commit>
Copyright © 2026 Akram El Assas. All rights reserved.

  install      Install a service.

  uninstall    Uninstall a service.

  start        Start a Windows service.

  stop         Stop a Windows service.

  status       Get the current status of a Windows service. Possible results:
               Stopped, StartPending, StopPending, Running, ContinuePending,
               PausePending, Paused.

  restart      Restart a Windows service.

  export       Export a Servy Windows service configuration to a configuration
               file.

  import       Import a Windows service configuration into the Servy database and
               optionally install the service.

  help         Display more information on a specific command.

  version      Display version information.

Command Help

For detailed help on any command, append --help after the command name. For example, to get help for the start command:

PS> servy-cli start --help
Servy.CLI <version>+<commit>
Copyright © 2026 Akram El Assas. All rights reserved.

  -n, --name     Required. Name of the service to start.

  -q, --quiet    Suppress spinner and run in non-interactive mode.

  --help         Display this help screen.

  --version      Display version information.

Install Command

The main command for installing a Windows service is install.

Quick Example

The following command installs MyApp.exe as a Windows service named MyService:

PS> servy-cli install --name="MyService" --path="C:\path\to\MyApp.exe"

Detailed Usage

Here is its detailed usage:

PS> servy-cli install --help
Servy.CLI <version>+<commit>
Copyright © 2026 Akram El Assas. All rights reserved.

  -n, --name                    Required. Unique service name to install.

  --displayName                 The human-readable name shown in the Windows
                                Services console (services.msc). If left empty,
                                the service name will be used instead.

  -d, --description             Description of the service.

  -p, --path                    Required. Path to the executable process.
                                Supports environment variable expansion, example:
                                %JAVA_HOME%\bin\java.exe

  --startupDir                  Startup directory for the process. Supports
                                environment variable expansion, example:
                                %PROGRAMDATA%\MyApp

  --params                      Additional parameters for the process. Supports
                                environment variable expansion, example:
                                --params="%ProgramData%\MyApp"
                                --params="%MY_VAR%\bin"

  --startupType                 Service startup type. Options: Automatic,
                                AutomaticDelayedStart, Manual, Disabled.

  --priority                    Process priority level. Options: Idle,
                                BelowNormal, Normal, AboveNormal, High, RealTime.

  --enableConsoleUI             Enable console user interface for the service.
                                When enabled, stdout/stderr redirection is
                                disabled.

  --stdout                      Path to stdout log file.

  --stderr                      Path to stderr log file.

  --enableRotation              Deprecated. Enable size-based log rotation. This
                                option is kept only for backward compatibility.
                                Use --enableSizeRotation instead.

  --enableSizeRotation          Enable size-based log rotation.

  --rotationSize                Log rotation size in Megabytes (MB). Must be
                                greater than or equal to 1 MB.

  --enableDateRotation          Enable date-based log rotation based on the date
                                interval specified by --dateRotationType. When
                                both size-based and date-based rotation are
                                enabled, size rotation takes precedence.

  --dateRotationType            Date rotation type. Options: Daily, Weekly,
                                Monthly, None (None disables date-based rotation;
                                use when only size rotation is desired).

  --maxRotations                Maximum rotated log files to keep. Set to 0 or
                                leave empty for unlimited.

  --useLocalTimeForRotation     Use local server time for log rotation instead of
                                UTC. Default is false.

  --enableHealth                Enable health monitoring.

  --heartbeatInterval           Heartbeat interval in seconds.

  --maxFailedChecks             Maximum allowed failed health checks.

  --recoveryAction              Recovery action on failure. Options: None,
                                RestartService, RestartProcess, RestartComputer.
                                Restart service and restart computer actions are
                                not available if the service runs under NT
                                AUTHORITY\NetworkService, NT
                                AUTHORITY\LocalService, or a user account without
                                the required privileges. Only the restart process
                                action will be available for these accounts.

  --recoveryOnCleanExit         Enable running recovery action even if the
                                process exits successfully. Default is false.

  --maxRestartAttempts          Maximum restart attempts on failure. Set to 0 for
                                unlimited restart attempts.

  --failureProgramPath          The failure program path. Configure a script or
                                executable to run when the process fails to
                                start. If health monitoring is disabled, the
                                program will run when the process fails to start.
                                If health monitoring is enabled, the program will
                                only run after all configured recovery action
                                retries have failed. Supports environment
                                variable expansion, example:
                                %JAVA_HOME%\bin\java.exe

  --failureProgramStartupDir    Specifies the directory in which the failure
                                program will start. Defaults to the failure
                                program directory. Supports environment variable
                                expansion, example: %PROGRAMDATA%\MyApp

  --failureProgramParams        Additional parameters for the failure program.

  --envVars                     Environment variables for the process. Enter
                                variables in the format varName=varValue
                                separated by semicolons (;). Use \= to escape
                                '=', \" to escape '"', \; to escape ';' and \\ to
                                escape '\'. Supports environment variable
                                expansion, example: VAR1=%ProgramData%\MyApp;
                                VAR2=%VAR1%\bin

  --deps                        Specify one or more Windows service names (not
                                display names) that this service depends on
                                separated with semicolons (;). Use service key
                                names without spaces or special characters. Each
                                dependency service must be installed and running
                                before this service can start. If a dependency's
                                start type is Automatic, Windows will try to
                                start it automatically before this service. If a
                                dependency fails to start or is disabled, this
                                service will not start.

  --user                        The service account username (e.g., .\username,
                                DOMAIN\username, or DOMAIN\gMSA$). If this option
                                is not set, the service runs under Local System.
                                If the service runs under an account other than
                                Local System, you must grant write access to
                                %ProgramData%\Servy for the account that runs the
                                service.

  --password                    The service account password. SECURITY WARNING:
                                Use the SERVY_PASSWORD environment variable
                                instead to avoid exposing credentials in OS
                                process listings.

  --preLaunchPath               The pre-launch executable path. Configure an
                                optional script or executable to run before the
                                main service starts. This is useful for preparing
                                configurations, fetching secrets, or other setup
                                tasks. If the pre-launch script fails, the
                                service will not start unless you enable
                                --preLaunchIgnoreFailure. Supports environment
                                variable expansion, example:
                                %JAVA_HOME%\bin\java.exe

  --preLaunchStartupDir         Specifies the directory in which the pre-launch
                                executable will start. Defaults to the service
                                working directory. Supports environment variable
                                expansion, example: %PROGRAMDATA%\MyApp

  --preLaunchParams             Additional parameters for the pre-launch
                                executable.

  --preLaunchEnv                Environment variables for the pre-launch
                                executable. Enter variables in the format
                                varName=varValue separated by semicolons (;). Use
                                \= to escape '=', \" to escape '"', \; to escape
                                ';' and \\ to escape '\'. Supports environment
                                variable expansion, example:
                                VAR1=%ProgramData%\MyApp; VAR2=%VAR1%\bin

  --preLaunchStdout             Path to stdout log file of the pre-launch
                                executable.

  --preLaunchStderr             Path to stderr log file of the pre-launch
                                executable.

  --preLaunchTimeout            Timeout for the pre-launch executable. Set the
                                timeout to 0 to run the pre-launch hook in
                                fire-and-forget mode. When set to 0, the hook is
                                started and the service is launched immediately
                                without waiting for completion. Use this only for
                                tasks that do not affect the service's ability to
                                start or run correctly. Stdout/Stderr redirection
                                and retries are not available in fire-and-forget
                                mode.

  --preLaunchRetryAttempts      Number of retry attempts for the pre-launch
                                executable if it fails. Must be greater or equal
                                to 0.

  --preLaunchIgnoreFailure      Ignore failure and start service even if
                                pre-launch executable fails.

  --postLaunchPath              The post-launch executable path. Configure an
                                optional script or executable to run after the
                                process starts successfully. Supports environment
                                variable expansion, example:
                                %JAVA_HOME%\bin\java.exe

  --postLaunchStartupDir        Specifies the directory in which the post-launch
                                executable will start. Defaults to the directory
                                of the post-launch program. Supports environment
                                variable expansion, example: %PROGRAMDATA%\MyApp

  --postLaunchParams            Additional parameters for the post-launch
                                executable.

  --debug                       Whether debug logs are enabled. When enabled,
                                environment variables and process parameters are
                                recorded in the Servy.Service.log file. Not
                                recommended for production environments, as these
                                logs may contain sensitive information.

  --startTimeout                Timeout in seconds to wait for the process to
                                start successfully before considering the startup
                                as failed. Must be greater than or equal to 1
                                second. Defaults to 10 seconds.

  --stopTimeout                 Timeout in seconds to wait for the process to
                                exit. Must be greater than or equal to 1 second.
                                Defaults to 5 seconds.

  --preStopPath                 The pre-stop executable path. Configure an
                                optional script or executable to run before the
                                main service stops. This can be used for graceful
                                shutdown tasks such as notifying external systems
                                or draining resources. The pre-stop process runs
                                synchronously and extends the service stop
                                timeout while it is running. Set the timeout to 0
                                to run the pre-stop process in fire-and-forget
                                mode. Supports environment variable expansion,
                                example: %JAVA_HOME%\bin\java.exe

  --preStopStartupDir           Specifies the directory in which the pre-stop
                                executable will start. Defaults to the directory
                                of the pre-stop program. Supports environment
                                variable expansion, example: %PROGRAMDATA%\MyApp

  --preStopParams               Additional parameters for the pre-stop
                                executable.

  --preStopTimeout              Timeout for the pre-stop executable. Set the
                                timeout to 0 to run the pre-stop process in
                                fire-and-forget mode.

  --preStopLogAsError           Log pre-stop failure as error.

  --postStopPath                The post-stop executable path. Configure an
                                optional script or executable to run after the
                                wrapped process and all of its child processes
                                have exited. The post-stop process is started in
                                fire-and-forget mode and does not block service
                                shutdown. Supports environment variable
                                expansion, example: %JAVA_HOME%\bin\java.exe

  --postStopStartupDir          Specifies the directory in which the post-stop
                                executable will start. Defaults to the directory
                                of the post-stop program. Supports environment
                                variable expansion, example: %PROGRAMDATA%\MyApp

  --postStopParams              Additional parameters for the post-stop
                                executable.

  -q, --quiet                   Suppress spinner and run in non-interactive mode.

  --help                        Display this help screen.

  --version                     Display version information.

Note

If the value of --params in install command includes arguments that start with --, use an equals sign (=) to prevent parsing issues. Example: --params="--mode=production --port=7008" Without the equals sign, the CLI might interpret --mode or --port as its own options instead of part of the service parameters.

Important

Security Best Practice: Avoid using the --password flag in production or scripts. Passing passwords as CLI arguments makes them visible in the Windows Process List and shell history. Instead, set the SERVY_PASSWORD environment variable before running the install command.

Below is the recommended way to install a service with credentials:

# 1. Set the password in the current process environment
$env:SERVY_PASSWORD = "your_secret_password"

# 2. Run the install command without the --password flag
servy-cli install `
  --name="My NodeJS Service" `
  --description="My NodeJS Server" `
  --path="C:\Program Files\nodejs\node.exe" `
  --startupDir="C:\Apps\App" `
  --params="C:\Apps\App\index.js" `
  --startupType="Automatic" `
  --priority="Normal" `
  --stdout="C:\Apps\App\stdout.log" `
  --stderr="C:\Apps\App\stderr.log" `
  --enableSizeRotation `
  --rotationSize=10 `
  --enableHealth `
  --heartbeatInterval=10 `
  --maxFailedChecks=3 `
  --recoveryAction="RestartService" `
  --maxRestartAttempts=5 `
  --envVars="ENV_VAR1=VAL1; ENV_VAR2=VAL2;" `
  --deps="MongoDB; MySQL80" `
  --user=".\serviceuser"

# 3. Clear the variable from memory immediately after use
Remove-Item Env:SERVY_PASSWORD

Below is an example usage of the install command:

servy-cli install `
  --name="My NodeJS Service" `
  --description="My NodeJS Server" `
  --path="C:\Program Files\nodejs\node.exe" `
  --startupDir="C:\Apps\App" `
  --params="C:\Apps\App\index.js" `
  --startupType="Automatic" `
  --priority="Normal" `
  --stdout="C:\Apps\App\stdout.log" `
  --stderr="C:\Apps\App\stderr.log" `
  --enableSizeRotation `
  --rotationSize=10 `
  --enableHealth `
  --heartbeatInterval=10 `
  --maxFailedChecks=3 `
  --recoveryAction="RestartService" `
  --maxRestartAttempts=5 `
  --envVars="ENV_VAR1=VAL1; ENV_VAR2=VAL2;" `
  --deps="MongoDB; MySQL80"

Below is an example usage of the install command with a pre-launch script:

  servy-cli install `
  --name="MyLegacyService" `
  --description="Runs legacy app with dynamic config" `
  --path="C:\Apps\LegacyApp\LegacyApp.exe" `
  --startupDir="C:\Apps\LegacyApp" `
  --params="--mode=production" `
  --preLaunchPath="C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" `
  --preLaunchStartupDir="C:\Scripts" `
  --preLaunchParams="-File C:\Scripts\GenerateConfig.ps1 -VaultUrl https://vault.example.com -SecretName AppSecrets" `
  --preLaunchEnv="ENV=production;API_KEY=abcdef123" `
  --preLaunchStdout="C:\Logs\prelaunch_stdout.log" `
  --preLaunchStderr="C:\Logs\prelaunch_stderr.log" `
  --preLaunchTimeout="60" `
  --preLaunchRetryAttempts="2" `
  --preLaunchIgnoreFailure `
  --enableHealth `
  --heartbeatInterval="30" `
  --maxFailedChecks="3" `
  --recoveryAction="RestartService" `
  --maxRestartAttempts="5" `
  --stdout="C:\Logs\service_stdout.log" `
  --stderr="C:\Logs\service_stderr.log" `
  --enableSizeRotation `
  --rotationSize="10"

Additional Commands

  • uninstall: Uninstall an existing service by name.
  • start: Start a Windows service by name.
  • stop: Stop a Windows service by name.
  • restart: Restart a Windows service by name.
  • status: Get a Windows service status by name.
  • export: Export a Servy Windows service configuration to a configuration file.
  • import: Import a Windows service configuration into Servy's database and optionally install it.
  • --version: Show CLI version (it's a global flag).

Tips

  • Always run the CLI with Administrator privileges when executing commands that modify Windows services.
  • Use the --help flag with any command to display detailed usage information and available options.
  • When automating with scripts or CI/CD pipelines, rely on the CLI's exit codes: 0 indicates success, any other value indicates failure.
  • Ensure that log file paths are writable by the user account under which the service runs to avoid permission issues.

See Also

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