pivotal cloud foundry intro

1. What is a garden

  The component that Cloud Foundry uses to create and manage isolated environments called containers.

2. What is a container

  Each instance of an application deployed to Cloud Foundry runs within a container

3. What is a Diego cell?

  A diego cell is a VM where application is hosted

4. What are the components of a Diego Cell?

  Rep - represents a cell in BBS
  Executor - manages container allocations in a cell, streams STDOUT, STDERR to metron agent running on the cell.
  Garden - manages the containers
  Metron-Agent - forwards logs/metrics to loggregator's doppler component.
  Route-Emitter - sends out details of the IP addresses

5. What is the database for bbs?

  etcd ( A MySQL server)

6. What are the components of database in Diego?

 1. BBS 2. Etcd 3. locket

7. What are the contents of a Diego Brain?

  1. Auctioneer - Hold Auctions for tasks & LRPs
  2. Converger - Reconciles desired LRPs vs Actual LRPs through auctions

8. What are the contents of a Loggregator?

  1. Doppler - drains logs to third party tools like splunk
  2. Traffic Controller - exposes websocket endpoint called firehose

9. What are the two data stores used by Cloud controller

  1. CC_DB: persists org/space/app data in the cloud controller database
  2. BlobStore: persists app packages and droplets to BlobStore

10. How to set org role for the user?

  cf set-org-role USERNAME ORG ROLE  

11. HOW TO set space role for the user?

  cf set-space-role USERNAME ORG SPACE_ROLE