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Application Lifecycle Management

This page describes a quick way to package, deploy, and start a squbs application. This guide uses Amazon EC2 as an example, showing how to run a squbs application in less than half an hour.

Packaging

You need to install the following on your build instance

Steps to build:

  • Clone the source code from the git repo to the <project> directory
  • cd <project>
  • Run the sbt build command, including "packArchive", such as: sbt clean update test packArchive
  • There are two archives created under <project>/target
  • <app>-<version>.tar.gz
  • <app>-<version>.zip

Start

You need to install the following on your running instance

Steps to run:

  • Copy either of the archives to the running instance
  • <app>-<version>.tar.gz
  • <app>-<version>.zip
  • For example, explode the tarball tar zxvf <app>-<version>.tar.gz to the <app>-<version> directory
  • start the application <app>-<version>/bin/run &
  • You can check the admin http://localhost:8080/adm from that instance, or http://<host>:8080/adm

Shutdown

You can terminate the running process, for example, in linux kill $(lsof -ti TCP:8080 | head -1) Since the application registers a shutdown hook with the JVM, it will shutdown gracefully, unless it is abrupt.

Amazon EC2

Log into AWS EC2 and launch an instance

  • You can create from free-tier, if the capacity meet your needs
  • Security group open (inbound) SSH – port 22, Custom TCP Rule – 8080
  • SSH into server (see AWS Console -> Instances -> Actions -> Connect)
  • Execute step Start and Shutdown as described above