Book Image

Implementing AppFog

Book Image

Implementing AppFog

Overview of this book

AppFog is the leading platform-as-a-service provider of PHP, Ruby, Node.js, and Java solutions. It is used by developers worldwide to deploy tens of thousands of applications. AppFog delivers a reliable, scalable, and fast platform for deploying applications in the cloud.This book is a hands-on guide that will walk you through creating and deploying applications to the cloud using AppFog, which will allow you to get your application deployed without the hassle of setting up servers.This book demonstrates how to use the AppFog service to build an application and have it running in the Cloud. It will walk you through the initial AppFog setup process and explain how to create your first application in minutes.You will also discover how to use services such as databases to make your applications more powerful. You will also learn how to create applications from scratch.You will find out everything you need to know to get an application running in the cloud for the first time.

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Implementing AppFog
Nov, 2013 | 86 pages
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Table of Contents (13 chapters)
Implementing AppFog
Implementing AppFog
Credits
Credits
About the Authors
About the Authors
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with AppFog
Getting Started with AppFog
About AppFog
Creating an account
Creating and deploying a preconfigured application
Using the application control panel
Summary
2
Using the Command-line Tool
Using the Command-line Tool
Installing the AppFog Gem
Logging in
Getting application statuses
Downloading the application
Fixing the application for Ruby 1.8.7
Running the application
Modifying the application
Updating the running application
Summary
3
Configuring Services
Configuring Services
Creating a database console application
Configuring the database console
Creating and attaching a MySQL service
Creating and populating a database table
Binding a service to an application
Using the database in the application
Making changes to app.rb
Changes to views/index.erb
Changing Gemfile
Summary
4
Creating an Application from Scratch
Creating an Application from Scratch
Creating an application
Testing the application
Publishing to AppFog
Command-line options
Testing the published application
Managing the published application
Summary
5
Command-line Reference
Command-line Reference
Finding help
Getting account information
Creating and updating an application
Gathering application information
Managing your application
Using services
Creating aliases
Summary
Installing the AppFog Gem
Installing the AppFog Gem
Installing on Macintosh
Installing on CentOS
Installing on Ubuntu
Installing on Windows
Using the Ruby Version Manager
Index
Index

Gathering application information

There are a number of commands you can use to find information about your currently installed applications.

Command

Description

af logs [appname]

Displays log files for the application. See Chapter 4, Creating an Application from Scratch, for examples.

af files [appname] [path]

Lists the files for an application. Add a path to navigate through the remote file system. See Chapter 4, Creating an Application from Scratch, for examples.

af stats [appname]

Displays stats for an application like uptime, CPU utilization, memory use, and disk space used. See Chapter 4, Creating an Application from Scratch, for examples.

af crashes [appname]

Lists any crashes for a given application.

af crashlogs [appname]

Displays crash logs, for example stderr.log, for an application.

If you are experiencing problems with your application, these commands can be very helpful. For example, you can see information about recent crashes using the af crashes and af crashlogs...

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