Heroku · Up and Running by Middleton, Neil -- Read -- Imperial Library of Trantor

Index

Heroku: Up and Running Preface

So, What Is Heroku? Who This Book Is For The History of Heroku The Heroku Culture Why Would I Want to Learn More About Heroku? Conventions Used in This Book Safari® Books Online How to Contact Us From the Authors: Neil Middleton From the Authors: Richard Schneeman Disclaimer

1. Getting Started with Heroku

The Dawn of Virtual Servers Enter the Cloud You New Around Here? Quick Start

2. How Heroku Works

What Is a Dyno? HTTP Routing

Request Life Cycle Long-Running Requests

The Dyno Manager and Dynos

Configuration Releases Slug Compilation Scale Out, Not Up Erosion Resistance Workers and Background Processing

Other Services

The Logplex Databases and Other Add-Ons Deployment Systems

3. Understanding Performance and Scale

Horizontal Scaling and You

Stateless Architecture

Distributed file stores Session state

Dyno Manifold Autoscaling Estimating Resource Requirements Request Queuing

Speeding Up Your App

Expires Headers Faster Page Response with a CDN Postgres Database Performance

N+1 queries Queries in need of an index

Explaining Postgres Performance Caching Expensive Queries Back that Task Up Full-Text Search Apps Performance Testing

In-App Performance Analysis External Performance Tools: Backend External Performance Tools: Frontend Being Fast

4. Heroku Regions

Multiregion or Single? The Heroku Way

How to Deploy in a New Region Forking an Application

Constraints

Latency

Read/write architecture

Add-Ons

5. Heroku PostgreSQL

Why PostgreSQL?

Transactional DDL Concurrent Indexes Extensibility Partial Indexing What Heroku Gives You Development versus Production

Choosing the Right Plan

Shared Features Starter Features Production Features

Getting Started Importing and Exporting Data

Importing Data

Using pg_restore locally

Exporting Data Snapshots CSV Exports

PGBackups Data Clips Followers

Fast Database Changeovers

Forking Other Features

Extension Support Improved Visibility JSON Support Range Type Support

6. Deployment

Timeliness Backing Out Testing How to Deploy, and Deploy Well

Backups Heroku Releases

Release creation Rolling back

Performance Testing Trimming the Fat (Slug Management) Source Code Management

Branching for environments Feature branching

Multienvironment Deployment

Consistency

Teams DNS

Configuration

Apex domains

7. When It Goes Wrong

Dev Center Heroku Support Deploy Debugging

Heroku Status Site Reproducing the Problem Check for a .slugignore File Fork and Use a Custom Buildpack Deploy Taking Too Long?

Runtime Error Detection and Debugging

Deploy Visibility Test Visibility Performance Visibility Exception Visibility Logging Add-Ons

Admin error pages

Exception Notification Uptime Visibility Twitter-Driven Development Code Reviews and a Branching Workflow

Runtime Error Debugging

Data State Debugging Asset Debugging Application State Debugging

8. Buildpacks

Before Buildpacks Introducing the Buildpack

Detect Compile

Release Profile.d Scripts Leveraging Multiple Buildpacks Quick and Dirty Binaries in Your App The Buildpack Recap

About the Authors Colophon Copyright

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