Voting app Using Django and MySQL

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A simple voting app that uses MySQL for data storage and a Python Django app for the frontend.

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
2. Configure Pulumi for AWS
3. Configure Pulumi for Python
4. Install Docker

Deploying and running the program

1. Create a new stack:

   $ pulumi stack init aws-py-django-voting-app
   

2. Set the AWS region, the usernames and passwords for a set of accounts the project uses, and a random 50-character string to serve as Django’s secret key:

   $ pulumi config set aws:region us-west-2
   $ pulumi config set sql-admin-name <NAME>
   $ pulumi config set sql-admin-password <PASSWORD> --secret
   $ pulumi config set sql-user-name <NAME>
   $ pulumi config set sql-user-password <PASSWORD> --secret
   $ pulumi config set django-admin-name <NAME>
   $ pulumi config set django-admin-password <PASSWORD> --secret
   $ pulumi config set django-secret-key <VALUE> --secret
   

3. Run pulumi up -y to deploy changes:

   Updating (aws-py-django-voting-app):
       Type                                  Name                              Status      Info
   +   pulumi:pulumi:Stack                   voting-app-aws-py-django-voting-app  created
   +   ├─ docker:image:Image                 django-dockerimage                created     1 warning
   +   ├─ 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:cloudwatch:LogGroup            django-log-group                  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:ec2:InternetGateway            app-gateway                       created
   +   ├─ aws:ec2:SecurityGroup              security-group                    created
   +   ├─ aws:ec2:Subnet                     app-vpc-subnet                    created
   +   ├─ aws:ec2:Subnet                     extra-rds-subnet                  created
   +   ├─ aws:lb:TargetGroup                 django-targetgroup                created
   +   ├─ aws:lb:LoadBalancer                django-balancer                   created
   +   ├─ aws:ec2:RouteTable                 app-routetable                    created
   +   ├─ aws:rds:SubnetGroup                app-database-subnetgroup          created
   +   ├─ aws:ec2:MainRouteTableAssociation  app_routetable_association        created
   +   ├─ aws:rds:Instance                   mysql-server                      created
   +   ├─ aws:lb:Listener                    django-listener                   created
   +   ├─ pulumi:providers:mysql             mysql-provider                    created
   +   ├─ mysql:index:Database               mysql-database                    created
   +   ├─ mysql:index:User                   mysql-standard-user               created
   +   ├─ mysql:index:Grant                  mysql-access-grant                created
   +   ├─ aws:ecs:TaskDefinition             django-site-task-definition       created
   +   ├─ aws:ecs:TaskDefinition             django-database-task-definition   created
   +   ├─ aws:ecs:Service                    django-site-service               created
   +   └─ aws:ecs:Service                    django-database-service           created
   
   Outputs:
       app-url: "django-balancer-2f4f9fe-c6e6893a1972a811.elb.us-west-2.amazonaws.com"
   
   Resources:
       + 31 created
   
   Duration: 4m16s
   

4. View the DNS address of the instance via pulumi stack output:

   $ pulumi stack output
   Current stack outputs (1):
       OUTPUT   VALUE
       app-url  django-balancer-2f4f9fe-c6e6893a1972a811.elb.us-west-2.amazonaws.com
   

5. Verify that the ECS 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.