Created aws-py-voting-app example (pulumi#759)

aws-py-voting-app/.gitignore

@@ -0,0 +1 @@
+venv

aws-py-voting-app/Pulumi.yaml

@@ -0,0 +1,8 @@
+name: voting-app
+runtime: python
+description: Voting app that uses containers
+template:
+ config:
+ aws:region:
+ description: The AWS region to deploy into
+ default: us-west-2

aws-py-voting-app/README.md

@@ -0,0 +1,99 @@
+[![Deploy](https://get.pulumi.com/new/button.svg)](https://app.pulumi.com/new)
+
+# Voting app Using Redis and Flask
+
+A simple voting app that uses Redis for a data store and a Python Flask app for the frontend. The example has been ported from https://github.com/Azure-Samples/azure-voting-app-redis.
+
+The example shows how easy it is to deploy containers into production and to connect them to one another. Since the example defines a custom container, Pulumi does the following:
+- Builds the Docker image
+- Provisions AWS Container Registry (ECR) instance
+- Pushes the image to the ECR instance
+- Creates a new ECS task definition, pointing to the ECR image definition
+
+## Prerequisites
+
+1. [Install Pulumi](https://www.pulumi.com/docs/get-started/install/)
+1. [Configure Pulumi for AWS](https://www.pulumi.com/docs/intro/cloud-providers/aws/setup/)
+1. [Configure Pulumi for Python](https://www.pulumi.com/docs/intro/languages/python/)
+1. [Install Docker](https://docs.docker.com/engine/installation/)
+
+## Deploying and running the program
+
+1. Create a new stack:
+
+ ```bash
+ $ pulumi stack init aws-py-voting-app
+ ```
+
+1. Set the AWS region and Redis password:
+
+ ```bash
+ $ pulumi config set aws:region us-west-2
+ $ pulumi config set redis-password <PASSWORD> --secret
+ ```
+
+1. Create a Python virtualenv, activate it, and install dependencies:
+
+ This installs the dependent packages [needed](https://www.pulumi.com/docs/intro/concepts/how-pulumi-works/) for our Pulumi program.
+
+ ```bash
+ $ python3 -m venv venv
+ $ source venv/bin/activate
+ $ pip3 install -r requirements.txt
+ ```
+
+1. Run `pulumi up -y` to deploy changes:
+ ```bash
+ Updating (aws-py-voting-app):
+ Type Name Status Info
+ + pulumi:pulumi:Stack webserver-py-aws-py-voting-app created 
+ + ├─ docker:image:Image flask-dockerimage created 
+ + ├─ aws:ec2:Vpc app-vpc created 
+ + ├─ aws:ecs:Cluster app-cluster created 
+ + ├─ aws:iam:Role app-exec-role created 
+ + ├─ aws:iam:Role app-task-role created 
+ + ├─ aws:ecr:Repository app-ecr-repo created 
+ + ├─ aws:ecr:LifecyclePolicy app-lifecycle-policy created 
+ + ├─ aws:iam:RolePolicyAttachment app-exec-policy created 
+ + ├─ aws:iam:RolePolicyAttachment app-access-policy created 
+ + ├─ aws:iam:RolePolicyAttachment app-lambda-policy created 
+ + ├─ aws:ecs:TaskDefinition redis-task-definition created 
+ + ├─ aws:ec2:InternetGateway app-gateway created 
+ + ├─ aws:ec2:SecurityGroup security-group created 
+ + ├─ aws:ec2:Subnet app-vpc-subnet created 
+ + ├─ aws:lb:TargetGroup redis-targetgroup created 
+ + ├─ aws:lb:TargetGroup flask-targetgroup created 
+ + ├─ aws:ec2:RouteTable app-routetable created 
+ + ├─ aws:lb:LoadBalancer redis-balancer created 
+ + ├─ aws:lb:LoadBalancer flask-balancer created 
+ + ├─ aws:ec2:MainRouteTableAssociation app_routetable_association created 
+ + ├─ aws:lb:Listener flask-listener created 
+ + ├─ aws:lb:Listener redis-listener created 
+ + ├─ aws:ecs:TaskDefinition flask-task-definition created 
+ + ├─ aws:ecs:Service redis-service created 
+ + └─ aws:ecs:Service flask-service created 
+
+ Outputs:
+ app-url: "flask-balancer-3987b84-b596c9ee2027f152.elb.us-west-2.amazonaws.com"
+
+ Resources:
+ + 26 created
+
+ Duration: 3m10s
+ ```
+
+1. View the DNS address of the instance via `stack output`:
+
+ ```bash
+ $ pulumi stack output
+ Current stack outputs (1):
+ OUTPUT VALUE
+ app-url flask-balancer-3987b84-b596c9ee2027f152.elb.us-west-2.amazonaws.com
+
+ ```
+
+1. Verify that the EC2 instance exists, by connecting to it in a browser window.
+
+## Clean up
+
+To clean up resources, run `pulumi destroy` and answer the confirmation question at the prompt.