Run ServiceStack as a daemon on Linux

Dan Parnham edited this page Jun 17, 2013 · 5 revisions

  1. Getting Started

    1. Creating your first project
      1. Create Service from scratch
    2. Your first webservice explained
    3. API Design
    4. Designing a REST-ful service with ServiceStack
    5. Example Projects Overview
    6. Learning Resources
  2. Reference

    1. Order of Operations
    2. The IoC container
    3. Configuration and AppSettings
    4. Metadata page
    5. Rest, SOAP & default endpoints
    6. SOAP support
    7. Routing
    8. Service return types
    9. Customize HTTP Responses
    10. Customize JSON Responses
    11. Plugins
    12. Validation
    13. Error Handling
    14. Security
    15. Debugging
    16. JavaScript Client Library (ss-utils.js)
  3. Clients

    1. Overview
    2. C#/.NET client
    3. Add ServiceStack Reference
      1. C# Add Reference
      2. F# Add Reference
      3. VB.NET Add Reference
      4. Swift Add Reference
      5. Java Add Reference
    4. Silverlight client
    5. JavaScript client
      1. Add TypeScript Reference
    6. Dart Client
    7. MQ Clients
  4. Formats

    1. Overview
    2. JSON/JSV and XML
    3. HTML5 Report Format
    4. CSV Format
    5. MessagePack Format
    6. ProtoBuf Format
  5. View Engines

    1. Razor & Markdown Razor
    2. Markdown Razor
  6. Hosts

    1. IIS
    2. Self-hosting
    3. Messaging
    4. Mono
  7. Security

    1. Authentication
    2. Sessions
    3. Restricting Services
    4. Encrypted Messaging
  8. Advanced

    1. Configuration options
    2. Access HTTP specific features in services
    3. Logging
    4. Serialization/deserialization
    5. Request/response filters
    6. Filter attributes
    7. Concurrency Model
    8. Built-in profiling
    9. Form Hijacking Prevention
    10. Auto-Mapping
    11. HTTP Utils
    12. Virtual File System
    13. Config API
    14. Physical Project Structure
    15. Modularizing Services
    16. MVC Integration
    17. ServiceStack Integration
    18. Embedded Native Desktop Apps
    19. Auto Batched Requests
    20. Versioning
    21. Multitenancy
  9. Caching

    1. Caching Providers
    2. HTTP Caching
      1. CacheResponse Attribute
      2. Cache Aware Clients
  10. Auto Query

    1. Overview
    2. Why Not OData
    3. AutoQuery RDBMS
    4. AutoQuery Data
      1. AutoQuery Memory
      2. AutoQuery Service
      3. AutoQuery DynamoDB
  11. Server Events

    1. Overview
    2. JavaScript Client
    3. C# Server Events Client
    4. Redis Server Events
  12. Service Gateway

    1. Overview
    2. Service Discovery
  13. Encrypted Messaging

    1. Overview
    2. Encrypted Client
  14. Plugins

    1. Auto Query
    2. Server Sent Events
    3. Swagger API
    4. Postman
    5. Request logger
    6. Sitemaps
    7. Cancellable Requests
    8. CorsFeature
  15. Tests

    1. Testing
    2. HowTo write unit/integration tests
  16. ServiceStackVS

    1. Install ServiceStackVS
    2. Add ServiceStack Reference
    3. TypeScript React Template
      1. React, Redux Chat App
    4. AngularJS App Template
    5. React Desktop Apps
  17. Other Languages

    1. FSharp
      1. Add ServiceStack Reference
    2. VB.NET
      1. Add ServiceStack Reference
    3. Swift
      1. Swift Add Reference
    4. Java
      1. Add ServiceStack Reference
      2. Android Studio & IntelliJ
      3. Eclipse
  18. Amazon Web Services

    1. ServiceStack.Aws
    2. PocoDynamo
    3. AWS Live Demos
    4. Getting Started with AWS
  19. Deployment

    1. Deploy Multiple Sites to single AWS Instance
      1. Simple Deployments to AWS with WebDeploy
    2. Advanced Deployments with OctopusDeploy
  20. Install 3rd Party Products

    1. Redis on Windows
    2. RabbitMQ on Windows
  21. Use Cases

    1. Single Page Apps
      1. HTML, CSS and JS Minifiers
    2. Azure
      1. Connecting to Azure Redis via SSL
    3. Logging
    4. Bundling and Minification
    5. NHibernate
  22. Performance

    1. Real world performance
  23. Other Products

    1. ServiceStack.Redis
    2. ServiceStack.OrmLite
    3. ServiceStack.Text
  24. Future

    1. Roadmap
Clone this wiki locally

When your web application is predominantly javascript with a REST service at the back-end there are many reasons why you might want to simply serve the static content through apache (or alternative) and run the service as a ...well... service. Some examples are:

Fortunately this is quite simple.

Service example

The earlier example of self hosting provides a good starting point, but needs to be modified slightly if running as a daemon.

using System;
using System.Reflection;
using Mono.Unix;
using Mono.Unix.Native;

using Funq;
using ServiceStack.ServiceHost;
using ServiceStack.WebHost.Endpoints;


namespace ServiceStackExample
{
    public class AppHost : AppHostHttpListenerBase
    {
        public AppHost() : base("Example", Assembly.GetExecutingAssembly())
        {
        }

        public override void Configure(Container container)
        {
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            //Initialize app host
            var appHost = new AppHost();
            appHost.Init();
            appHost.Start("http://127.0.0.1:8080/");

            UnixSignal [] signals = new UnixSignal[] { 
                new UnixSignal(Signum.SIGINT), 
                new UnixSignal(Signum.SIGTERM), 
            };

            // Wait for a unix signal
            for (bool exit = false; !exit; )
            {
                int id = UnixSignal.WaitAny(signals);

                if (id >= 0 && id < signals.Length)
                {
                    if (signals[id].IsSet) exit = true;
                }
            }
        }
    }
}

Be aware that this makes use of posix functionality and will therefore not work under Windows. You will need to add the Mono.Posix library to your project references.

Daemonising the application

As it stands the project produces a console application that responds to unix signals (press ctrl-c to exit if you are running it from a terminal). If your target platform is Ubuntu then the simplest way to automatically run your application as a daemon is to use an upstart script.

Create the following at /etc/init/example.conf

# ServiceStack Example Application

description "ServiceStack Example"
author      "ServiceStack"

start on started rc
stop on stopping rc

respawn

exec start-stop-daemon --start -c username --exec mono /path/to/application.exe

Ideally we would start the service when apache is ready but apache does not yet emit upstart events. Additional conditions could include a database dependency if required, for example "start on started mysql". Replace "username" with that of an unprivileged user on the system; this avoids the dangers of running the application as root.

You should now be able to start your application with

$ sudo start example

and access the default service information by visiting http://127.0.0.1:8080 in your browser of choice.

Configuring apache

The following example configuration uses proxying to expose the REST service through apache, so you must ensure that mod_proxy has been enabled first:

$ sudo a2enmod proxy

Next create a file at /etc/apache2/sites-available/example

ProxyPass /api http://127.0.0.1:8080/ retry=0 max=50
ProxyPassReverse /api http://127.0.0.1:8080/

<VirtualHost *:80>
    DocumentRoot /path/to/static/content/

    <Directory />
    </Directory>

    <Directory /path/to/static/content/>
        Options Indexes MultiViews
        AllowOverride None
        Order allow,deny
        allow from all
    </Directory>
</VirtualHost>

Your site can then be enabled with

$ sudo a2ensite example

although you will need to disable the default sites if they are enabled. After restarting/reloading apache you should find your static content at http://127.0.0.1 and the REST service at http://127.0.0.1/api.

Alternative nginx configuration

Create a file at /etc/nginx/sites-available/example

server {
    listen 80;
    root /path/to/static/content;
    index index.html;

    location /api/ {
        proxy_pass http://127.0.0.1:8080/;
    }
}

To enable the site simply symlink from sites-available to sites-enabled (nginx does not have an equivalent a2ensite tool) and then restart/reload nginx. (N.B. The trailing forward slash on the proxy pass URL is important).

Other hosting options on Linux / Mono

This StackOverflow answer lists the different options for hosting ServiceStack on Linux with Mono.