Pivotal Cloud Foundry Tutorial - Understanding PCF Deployment Architecture

In previous tutorial we had deployed a Spring Boot Application to PCF. Let us now look at some PCF concepts like Orgs, Spaces.
We will also look at the PCF Deployment Process that occurs after cf push.

Pivotal Cloud Foundry - Table Of Contents
Pivotal Cloud Foundry Tutorial - Quick Introduction
Pivotal Cloud Foundry Tutorial - Setting up the Development Environment 
Pivotal Cloud Foundry Tutorial - Deploy Spring Boot Application Hello World Example
Pivotal Cloud Foundry Tutorial - Understanding PCF Deployment Architecture 	      
Pivotal Cloud Foundry Tutorial - Deploying Spring Boot + MySQL Application to PCF 	   
Pivotal Cloud Foundry Tutorial - Deploying Spring Boot + RabbitMQ Application to PCF	      
	      

PCF Orgs and Spaces

Consider we have to deploy PCF for a Bank.
The first step will be to get the cloud platform from sme cloud provider like AWS or Azure. Next we will start the PCF deployment on this cloud platform.
Suppose for a Bank there are 2 projects-

• Wealth Management
• Investment Banking

We will then create 2 orgs named Wealth Management and Investment Banking.
Organization (org) is a development account that encompasses computing resources, apps, and services. It can be owned and used by an individual or by multiple collaborators.

Within the individual orgs we have the spaces.

PCF Architecture

Let us take a look at the PCF architecture-

Diego is a self-healing container management system that attempts to keep the correct number of instances running in Diego Cells to avoid network failures and crashes. Diego schedules and runs Tasks and Long-Running Processes (LRP).
Following are the Roles and the associated permissions for PCF

Role	Permissions
Admin	An admin user has permissions on all orgs and spaces
Admin Read-Only	This role has read-only access to all Cloud Controller API resources.
Global Auditor	This role has read-only access to all Cloud Controller API resources except for secrets such as environment variables.
Org Managers	managers or other users who need to administer the org
Org Auditors	view but cannot edit user information and org quota usage information
Org Billing Managers	create and manage billing account and payment information
Org Users	Can view the list of other org users and their roles. When an Org Manager gives a person an Org or Space role, that person automatically receives Org User status in that Org
Space Managers	Managers or other users who administer a space within an org
Space Developers	Application developers or other users who manage applications and services in a space
Space Auditors	View but cannot edit the space