Anatomy of a Chef Run and Authentication Cycle

This is an excerpt of a longer presentation that walks through the anatomy of a Chef run, along with the authentication cycle when using a Chef server.

Transcript

1. Anatomy of a Chef Run + Authentication joshua@opscode.com http://wiki.opscode.com "Anatomy of a Chef Run" "Authentication and Authorization"
2. chef-client
3. build node chef-client
4. build node chef-client Ohai! node_name platform
5. build node authenticate chef-client
6. build node authenticate sync cookbooks chef-client
7. build node authenticate sync cookbooks chef-client expanded run list (recipes)
8. build node authenticate sync cookbooks load cookbooks chef-client
9. build node authenticate sync cookbooks load cookbooks converge chef-client
10. build node authenticate sync cookbooks load cookbooks converge chef-client success?
11. build node authenticate sync cookbooks load cookbooks converge chef-client success?
12. build node authenticate sync cookbooks load cookbooks converge node.save Yes chef-client success?
13. build node authenticate sync cookbooks load cookbooks converge node.save exception Yes No chef-client success?
14. build node authenticate sync cookbooks load cookbooks converge node.save notification handlers exception Yes No chef-client success?
15. /etc/chef/ client.pem?
16. /etc/chef/ client.pem? Sign Requests Yes
17. /etc/chef/ client.pem? /etc/chef/ validation.pem? Sign Requests Yes No
18. /etc/chef/ client.pem? /etc/chef/ validation.pem? 401! Sign Requests Yes No No
19. /etc/chef/ client.pem? /etc/chef/ validation.pem? 401! Request API Client Sign Requests Yes No No Yes
20. /etc/chef/ client.pem? /etc/chef/ validation.pem? 401! Request API Client Sign Requests client.pem Yes No No Yes
21. /etc/chef/ client.pem? /etc/chef/ validation.pem? 401! Request API Client Sign Requests client.pem Yes No No Yes