AppScale Thirdparties

AppScale is an easy-to-manage serverless platform for building and running scalable web and mobile applications on any infrastructure. It is open source and modeled on Google App Engine APIs.

The main AppScale repository contains API's implementation, services orchestration functionality, etc. In particular it currently has a lot of provisioning scripts for third-party backends.

Recently it was decided to move third-parties provisioning logic outside AppScale core. As there is no unified recipe for configuring complex services like FoundationDB, Postgres or Solr it appears unfair to claim that AppScale core can perfectly configure it for any particular deployment.

This repo contains basic initialization scripts for AppScale third-parties. The scripts suppose to be invoked either manually on machines dedicated for corresponding backends or by appscale-tools when it's starting deployment (appscale-tools uses utils like EC2 User Data or Azure Custom Script Extension to tell clouds to provision third-parties).

Contribution

If you're willing to move another third-party backend provisioning from AppScale to this repo you'd need to take in account few notes:

• In order to be able to initialize backend services offline it's highly recommended to have install.sh script in your backend directory (like it's done for foundationdb).

  AppScale's bootstrap script prepares appscale images. It runs install_all.sh which calls all install.sh scripts found in the repo.

• Use or even extend common.sh functions.

• Make sure your initialization script is idempotent.

• Make sure you install.sh disable installed service (it shouldn't be running).