feat: fargate service using a local image (aws-samples#33)

Author: piradeepk

typescript/ecs/fargate-service-with-local-image/cdk.json

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+{
+  "app": "node index"
+}

typescript/ecs/fargate-service-with-local-image/index.ts

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+import ec2 = require('@aws-cdk/aws-ec2');
+import ecs = require('@aws-cdk/aws-ecs');
+import cdk = require('@aws-cdk/cdk');
+import path = require('path');
+
+const app = new cdk.App();
+const stack = new cdk.Stack(app, 'FargateServiceWithLocalImage');
+
+// Create VPC and Fargate Cluster
+// NOTE: Limit AZs to avoid reaching resource quotas
+const vpc = new ec2.VpcNetwork(stack, 'MyVpc', { maxAZs: 2 });
+const cluster = new ecs.Cluster(stack, 'Cluster', { vpc });
+
+// Instantiate Fargate Service with a cluster and a local image that gets 
+// uploaded to an S3 staging bucket prior to being uploaded to ECR.
+// A new repository is created in ECR and the Fargate service is created
+// with the image from ECR.
+new ecs.LoadBalancedFargateService(stack, "FargateService", {
+  cluster,
+  image: ecs.ContainerImage.fromAsset(stack, "local-image" , { 
+    directory: path.join(__dirname, 'local-image') 
+  })
+});
+
+app.run();

typescript/ecs/fargate-service-with-local-image/local-image/Dockerfile

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+# Use an official Python runtime as a parent image
+FROM python:3.4-alpine
+
+# Set the working directory to /app
+WORKDIR /app
+
+# Copy the current directory contents into the container at /app
+COPY . /app
+
+# Install any needed packages specified in requirements.txt
+RUN pip install --trusted-host pypi.python.org -r requirements.txt
+
+# Make port 80 available to the world outside this container
+EXPOSE 80
+
+# Define environment variable
+ENV NAME World
+
+# Run app.py when the container launches
+CMD ["python", "app.py"]

typescript/ecs/fargate-service-with-local-image/local-image/app.py

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+from flask import Flask
+import os
+import socket
+
+app = Flask(__name__)
+
+@app.route("/")
+def hello():
+    html = "<h3>Hello {name}!</h3>" \
+           "<b>Hostname:</b> {hostname}<br/>"
+    return html.format(name=os.getenv("NAME", "world"), hostname=socket.gethostname())
+
+if __name__ == "__main__":
+    app.run(host='0.0.0.0', port=80)
+

typescript/ecs/fargate-service-with-local-image/local-image/requirements.txt

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+flask

typescript/ecs/fargate-service-with-local-image/package.json

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+{
+  "name": "fargate-service-with-local-image",
+  "version": "0.25.1",
+  "description": "Running a load balanced service on Fargate with an image loaded locally",
+  "private": true,
+  "scripts": {
+    "build": "tsc",
+    "watch": "tsc -w",
+    "cdk": "cdk"
+  },
+  "author": {
+    "name": "Amazon Web Services",
+    "url": "https://aws.amazon.com",
+    "organization": true
+  },
+  "license": "Apache-2.0",
+  "devDependencies": {
+    "@types/node": "^8.10.38",
+    "typescript": "^3.2.4"
+  },
+  "dependencies": {
+    "@aws-cdk/aws-ec2": "*",
+    "@aws-cdk/aws-ecs": "*",
+    "@aws-cdk/cdk": "*"
+  }
+}

typescript/ecs/fargate-service-with-local-image/tsconfig.json

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+{
+    "compilerOptions": {
+        "target":"ES2018",
+        "module": "commonjs",
+        "lib": ["es2016", "es2017.object", "es2017.string"],
+        "strict": true,
+        "noImplicitAny": true,
+        "strictNullChecks": true,
+        "noImplicitThis": true,
+        "alwaysStrict": true,
+        "noUnusedLocals": true,
+        "noUnusedParameters": true,
+        "noImplicitReturns": true,
+        "noFallthroughCasesInSwitch": false,
+        "inlineSourceMap": true,
+        "inlineSources": true,
+        "experimentalDecorators": true,
+        "strictPropertyInitialization":false
+    }
+}
+