MustDB returns a *sql.DB for dbname, or panics if the database is unreachable.

NewDynamoService configures a local dynamo client connected to DYNAMODB_HOST or localhost:8000, which should be running aws-dynamodb-local.

NewKafkaURLs returns the broker addresses for Sarama to connect to a local Kafka host at KAFKA_HOST or localhost:9092.

NewRedisPool returns a redis pool connected to RedisURL.

OpenDatabase returns a database connection for testing the provided service.