Ecosystem Overview @ Oregon State CS312

Transcript

2. About Me CTO/CO-FOUNDER systems engineer @brandonphilips github.com/philips
3. About Me CTO/CO-FOUNDER systems engineer @brandonphilips github.com/philips
4. Why build CoreOS?
5. run and isolate apps containers
6. what is it exactly? containers
7. libc python django app.py
8. $ /usr/bin/python run app.py
9. libc python django app.py
10. libc python django app.py example.com/myapp
11. $ container fetch example.com/myapp $ container run example.com/myapp
12. pid ns isolated pid 1
13. user ns isolated uid 0
14. network ns isolated netdev
15. mount ns isolated /
16. cgroups manage resources
17. cgroups count resources
19. cgroups limit resources
20. docker engine
22. google lmctfy cloud foundry garden mesos containers lxc systemd-nspawn
23. how are they created? containers
25. super-powers containers
26. App independence from the OS. System to get container to the server. Resource isolation between apps.
27. reduced API contracts OS
28. kernel systemd etcd ssh docker python java nginx mysql openssl app distro distro distro distro distro distro distr
29. python java nginx mysql openssl app distro distro distro distro distro distro distr kernel systemd etcd ssh docker
30. python openssl-A app1 distro distro distro distro distro distro distr java openssl-B app2 java openssl-B app3 kernel systemd etcd ssh docker
31. manual updates
32. automatic updates
33. automatic updates
34. atomic with rollback auto updates
37. super-powers OS
38. Opportunity for automatic updates. Consistent set of software across hosts. Base OS independent from app.
39. design for host failure clustering
40. etcd
41. /etc distributed
42. open source software sequentially consistent exposed via HTTP runtime reconfigurable
43. -X GET Get Wait -X PUT Put Create CAS -X DELETE Delete CAD
44. Available
45. Available
46. Available
47. Unavailable
48. Available Leader Follower
49. Leader Follower Available
50. Leader Follower Temporarily Unavailable
51. Leader Follower Available
52. super-powers etcd
53. Share configuration data across hosts. Resilient to host failures. Designed for consistency across hosts.
54. getting work to servers scheduling
55. You Scheduler API Scheduler Machine(s)
56. $ cat foo.service [Service] ExecStart=/usr/bin/sleep 500 $ fleetctl start foo.service Job foo.service launched on e1cd2bcd.../172.17.8.101
57. while true { todo = diff(desState, curState) schedule(todo) }
58. while true { todo = diff(desState, curState) schedule(todo) }
59. while true { todo = diff(desState, curState) schedule(todo) }
60. while true { todo = diff(desState, curState) schedule(todo) }
61. fleet mesos kubernetes swarm job scheduling
62. locksmith coordination
63. super-powers scheduling
64. Think about app capacity first. Take advantage of compute resources. Build for resilience to host failure.
65. skydns, discoverd, confd service discovery
66. magic proxies service discovery
67. OS Containers Cluster Configuration Job Scheduling Service Discovery
69. Go Beavs!