Akka cluster template for local and EC2 testing

Version 1.0

Description

Master ------> Worker0
           --> Worker1
            ...
           --> WorkerN

Master and WorkerX are just cluster's nodes. Each node prints cluster state each 1 minute. The Master sends some DebugEvent to cluster nodes via some balancer.

Requirements

Scala: 2.11.8
Akka: 2.5.9
JRE: 8

Local testing

1) Set static mode at core/main/resources/application.conf:

aws.cluster.staticConfig = true

2) Set current and sibling's IP and ports at <module>/core/main/resources/application.conf

3) Start master module

$ sbt
> project master
> container:start

4) Start worker module

$ sbt
> project worker
> container:start

See below screenshot and comments for the local testing:

EC2 testing

1) Set dynamic mode at core/main/resources/application.conf:

aws.cluster.staticConfig = false

2) The following ports should be allowed in EC2 environment: 2551, 3000, 5000. Also a port biding is used in this mode automatically (at com.example.util.EC2Utils).