hello-service-fabric (#68)

* Adding hello-service-fabric sample * Updating .gitIgnore for Service Fabric demo. * Fixed http file and readme * Polished the readme * Made changes from code review. Co-authored-by: Donovan Brown <dlbm3@hotmail.com>
2021-09-17 11:17:09 -05:00 · 2021-09-17 11:17:09 -05:00 · 36d722e310
parent 569f81035a
commit 36d722e310
10 changed files with 652 additions and 1 deletions
--- a/.gitignore
+++ b/.gitignore
@ -4,4 +4,7 @@ package-lock.json
 vendor/**
 twitter-sentiment-processor/demos/demo2/viewer/handler
 twitter-sentiment-processor/demos/demo3/demochart/templates/twitter.yaml
-.venv/
+hello-service-fabric/daprsfpkg/MyService/CodeDapr/daprd.exe
+hello-service-fabric/daprsfpkg/MyService/CodeDapr/components/pubsub.yaml
+hello-service-fabric/daprsfpkg/MyService/CodeDapr/components/statestore.yaml
+.venv/
--- a/hello-service-fabric/README.md
+++ b/hello-service-fabric/README.md
@ -0,0 +1,138 @@
+# Dapr on Service Fabric Sample
+
+## Sample info
+
+| Attribute | Details |
+|--------|--------|
+| Dapr runtime version | v1.4.0 |
+| Language | Javascript |
+| Environment | Service Fabric |
+
+## Overview
+
+The following is a sample of how to host a Dapr app on a Service Fabric cluster. We'll be deploying a Node.js app that subscribes to order messages and persists them. The following architecture diagram illustrates the components that make up this sample:
+
+![Architecture Diagram](./img/Architecture_Diagram.png)
+
+Some Dapr functionality, including Pub/Sub, Secrets and Bindings work without any integration with SF. However, service invocation, will not work without additional changes and is out of scope for this post.
+
+## Prerequisites
+
+Clone this repo using `git clone https://github.com/dapr/samples.git` and go to the directory named *\hello-service-fabric*. All commands should be executed from a PowerShell terminal.
+
+- [Docker](https://docs.docker.com/)
+- [PowerShell](https://github.com/powershell/powershell)
+- [REST Client extension](https://marketplace.visualstudio.com/items?itemName=humao.rest-client)
+- [Node.js version 8 or greater](https://nodejs.org/en/)
+- [Microsoft Azure Service Fabric SDK](https://www.microsoft.com/web/handlers/webpi.ashx?command=getinstallerredirect&appid=MicrosoftAzure-ServiceFabric-CoreSDK)
+
+## Step 1 - Setup Dapr
+
+Follow these [instructions](https://docs.dapr.io/getting-started/install-dapr/#install-dapr-in-self-hosted-mode) to download and install the Dapr CLI and initialize Dapr with `dapr init`.
+
+```PowerShell
+dapr init
+```
+
+## Step 2 - Setup Service Fabric
+
+1. Create a basic Service Fabric cluster through the SDK as described [here](https://docs.microsoft.com/azure/service-fabric/service-fabric-get-started).
+
+1. Right click "Service Fabric Local Cluster Manager" in the taskbar and select "Start Local Cluster".
+
+## Step 3 - Create the Service Fabric Application Package
+
+This section will create an application package where daprd.exe and the user node.js app will be run as guest executables in two separate code packages under the same Service Fabric service. They'll always be co-located.
+
+1. Copy daprd.exe from your local Dapr installation, `c:\Users\[user]\.dapr\bin`, into `\daprsfpkg\MyService\CodeDapr\`.
+
+   ```PowerShell
+   copy c:\Users\$env:username\.dapr\bin\daprd.exe .\daprsfpkg\MyService\CodeDapr\
+   ```
+
+1. Copy the components from your local Dapr installation, `c:\Users\[user]\.dapr\components`, into `\daprsfpkg\MyService\CodeDapr\components`.
+
+   ```PowerShell
+   copy c:\Users\$env:username\.dapr\components\*.* .\daprsfpkg\MyService\CodeDapr\components\
+   ```
+
+1. From `\daprsfpkg\MyService\CodeUserApp\`, run `npm install` to install the node.js app's dependencies and return to `\hello-service-fabric`.
+
+   ```PowerShell
+   cd .\daprsfpkg\MyService\CodeUserApp\
+   npm install
+   cd ..\..\..
+   ```
+
+1. From `\hello-service-fabric`, confirm the application package is well-formed:
+
+   ```PowerShell
+   Test-ServiceFabricApplicationPackage .\daprsfpkg\
+   ```
+
+Notes:
+
+- the application package includes the Dapr `components` folder, which stores Dapr component configurations, in the Dapr code package.  In Dapr standalone (local) mode, this is generated by the Dapr CLI. It is included so daprd.exe can read it when running on a Service Fabric cluster.
+
+- the service manifest contains a command to invoke daprd.exe with the same args that the Dapr CLI does in the sample.
+
+## Step 4 - Create the Service Fabric Application
+
+Copy the application package to the cluster, register it, then create the application.
+
+Connect to the cluster:
+
+```PowerShell
+Connect-ServiceFabricCluster
+```
+
+Copy the application package to the cluster:
+
+```PowerShell
+Copy-ServiceFabricApplicationPackage daprsfpkg
+```
+
+Register it:
+
+```PowerShell
+Register-ServiceFabricApplicationType daprsfpkg
+```
+
+Create the application instance:
+
+```PowerShell
+New-ServiceFabricApplication -ApplicationName fabric:/dapr1 -ApplicationTypeName daprsf -ApplicationTypeVersion 1.0
+```
+
+daprd.exe and the node.js app will run on the same node.
+
+## Part 5 - Post Messages to the Service
+
+Now that Dapr and the Node.js app are running, you can POST messages against it, using the Visual Studio Code [REST Client extension](https://marketplace.visualstudio.com/items?itemName=humao.rest-client).
+
+Open the `requests.http` file in the root folder to execute the following requests.
+
+```text
+POST http://localhost:3500/v1.0/invoke/mynode/method/neworder
+Content-Type: application/json
+
+{"data":{"orderId":"42"}}
+
+###
+
+GET http://localhost:3500/v1.0/invoke/mynode/method/order
+```
+
+## Part 6 - Cleanup
+
+1. Delete the Service Fabric application instance:
+
+   ```PowerShell
+   Remove-ServiceFabricApplication -ApplicationName fabric:/dapr1 -Force
+   ```
+
+1. Unregister the Service Fabric application type
+
+   ```PowerShell
+   Unregister-ServiceFabricApplicationType -ApplicationTypeName daprsf -ApplicationTypeVersion 1.0 -Force
+   ```
--- a/hello-service-fabric/daprsfpkg/ApplicationManifest.xml
+++ b/hello-service-fabric/daprsfpkg/ApplicationManifest.xml
@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ApplicationManifest xmlns:xsd="https://www.w3.org/2001/XMLSchema" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" ApplicationTypeName="daprsf" ApplicationTypeVersion="1.0" xmlns="http://schemas.microsoft.com/2011/01/fabric">
+   <ServiceManifestImport>
+      <ServiceManifestRef ServiceManifestName="MyService" ServiceManifestVersion="1.0.0.0" />
+   </ServiceManifestImport>
+   <DefaultServices>
+      <Service Name="MyServiceName">
+         <StatelessService ServiceTypeName="MyServiceType">
+            <SingletonPartition />
+         </StatelessService>
+      </Service>
+   </DefaultServices>
+</ApplicationManifest>
--- a/hello-service-fabric/daprsfpkg/MyService/CodeDapr/components/.gitkeep
+++ b/hello-service-fabric/daprsfpkg/MyService/CodeDapr/components/.gitkeep
--- a/hello-service-fabric/daprsfpkg/MyService/CodeUserApp/app.js
+++ b/hello-service-fabric/daprsfpkg/MyService/CodeUserApp/app.js
@ -0,0 +1,48 @@
+// ------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+// ------------------------------------------------------------
+
+const express = require('express');
+require('isomorphic-fetch');
+
+const app = express();
+app.use(express.json());
+
+const port = process.env.APP_HTTP_PORT || 3000;
+const daprPort = process.env.DAPR_HTTP_PORT || 3500;
+const stateUrl = `http://localhost:${daprPort}/v1.0/state/statestore/`;
+
+app.get('/order', (_req, res) => {
+    fetch(`${stateUrl}/order`)
+        .then((response) => {
+            return response.json();
+        }).then((orders) => {
+            res.send(orders);
+        });
+});
+
+app.post('/neworder', (req, res) => {
+    const data = req.body.data;
+    const orderId = data.orderId;
+    console.log("Got a new order! Order ID: " + orderId);
+
+    const state = [{
+        key: "order",
+        value: data
+    }];
+
+    fetch(stateUrl, {
+        method: "POST",
+        body: JSON.stringify(state),
+        headers: {
+            "Content-Type": "application/json"
+        }
+    }).then((response) => {
+        console.log((response.ok) ? "Successfully persisted state" : "Failed to persist state" + response);
+    });
+
+    res.status(200).send();
+});
+
+app.listen(port, () => console.log(`Node App listening on port ${port}!`));
--- a/hello-service-fabric/daprsfpkg/MyService/CodeUserApp/package-lock.json
+++ b/hello-service-fabric/daprsfpkg/MyService/CodeUserApp/package-lock.json
@ -0,0 +1,393 @@
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+}
--- a/hello-service-fabric/daprsfpkg/MyService/CodeUserApp/package.json
+++ b/hello-service-fabric/daprsfpkg/MyService/CodeUserApp/package.json
@ -0,0 +1,16 @@
+{
+  "name": "node_server",
+  "version": "1.0.0",
+  "description": "Dapr service that saves data to a state store.",
+  "main": "app.js",
+  "repository": {},
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.17.1",
+    "isomorphic-fetch": "^3.0.0"
+  }
+}
--- a/hello-service-fabric/daprsfpkg/MyService/ServiceManifest.xml
+++ b/hello-service-fabric/daprsfpkg/MyService/ServiceManifest.xml
@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ServiceManifest xmlns:xsd="https://www.w3.org/2001/XMLSchema" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" Name="MyService" Version="1.0.0.0" xmlns="http://schemas.microsoft.com/2011/01/fabric">
+   <ServiceTypes>
+      <StatelessServiceType ServiceTypeName="MyServiceType" UseImplicitHost="true"/>
+   </ServiceTypes>
+   <CodePackage Name="CodeUserApp" Version="1.0.0.0">
+      <EntryPoint>
+         <ExeHost IsExternalExecutable="true">
+            <Program>node.exe</Program>
+            <Arguments>app.js</Arguments>
+            <WorkingFolder>CodePackage</WorkingFolder>
+         </ExeHost>
+      </EntryPoint>
+      <EnvironmentVariables>
+         <!-- Make sure these matche the Arguments element below -->
+         <EnvironmentVariable Name="APP_HTTP_PORT" Value="3000"/>
+         <EnvironmentVariable Name="DAPR_HTTP_PORT" Value="3500"/>
+         <EnvironmentVariable Name="DAPR_GRPC_PORT" Value="43693"/>
+      </EnvironmentVariables>
+   </CodePackage>
+
+   <!-- note the /components folder has been copied into this code package -->
+   <CodePackage Name="CodeDapr" Version="1.0.0.0">
+      <EntryPoint>
+         <ExeHost>
+            <Program>daprd.exe</Program>
+            <Arguments> --app-id mynode --components-path ./components --app-protocol http --app-port 3000 --dapr-http-port 3500 --dapr-grpc-port 43693 --log-level debug --app-max-concurrency -1</Arguments>
+            <WorkingFolder>CodeBase</WorkingFolder>
+         </ExeHost>
+      </EntryPoint>
+   </CodePackage>
+</ServiceManifest>
--- a/hello-service-fabric/img/Architecture_Diagram.png
+++ b/hello-service-fabric/img/Architecture_Diagram.png
--- a/hello-service-fabric/requests.http
+++ b/hello-service-fabric/requests.http
@ -0,0 +1,8 @@
+POST http://localhost:3500/v1.0/invoke/mynode/method/neworder
+Content-Type: application/json
+
+{"data":{"orderId":"42"}}
+
+###
+
+GET http://localhost:3500/v1.0/invoke/mynode/method/order