gcloud-play-sample

Sample Play framework scala backend using Google App Engine managed VM with custom runtime.

Prerequisites

0. Install activator

1. Create a new cloud project on console.developers.google.com

2. Export your project id:

   $ export PROJECT_ID=<project id>

Running

Locally

```sh
# Start the server
$ activator run
```

Docker

```sh
# Check that Docker is running
$ boot2docker up
$ $(boot2docker shellinit)

# Package the app
$ sbt docker:stage

# Build your Docker image
$ docker build -t app ./target/docker

# Start a new Docker container
$ docker run -p 8080:8080 app

# Test the app
$ curl -X GET http://$(boot2docker ip):8080
```

Managed VMs

```sh
# Get gcloud
$ curl https://sdk.cloud.google.com | bash

# Authorize gcloud and set your default project
$ gcloud auth login
$ gcloud config set project $PROJECT_ID

# Get App Engine component
$ gcloud components update app

# Check that Docker is running
$ boot2docker up

# Run the app locally
$ gcloud preview app run target/docker
$ curl -X GET http://localhost:8080

# Run the app locally with debug
$ gcloud --verbosity debug preview app run target/docker
$ curl -X GET http://localhost:8080

# Deploy the app to production
$ gcloud preview app deploy target/docker
$ curl -X GET http://$PROJECT_ID.appspot.com
```

See

• build.sbt : Where the docker container configuration for GAE happens
• app.yaml : GAE managed VM config, see Configuring a Managed VM
• conf/routes : GAE mandatory route for healthcheck, see Lifecycle events