Pods @ Container Meetup Tokyo

Transcript

1. Docker & Pods The many forms of containers
2. Confidential & Proprietary Google Cloud Platform 2 Ian Lewis Developer Advocate - Google Cloud Platform Tokyo, Japan google.com/+IanLewis-hoge @IanMLewis
3. Confidential & Proprietary Google Cloud Platform 3 What are containers?
4. Confidential & Proprietary Google Cloud Platform 4 1. Linux cgroup 2. Linux Namespace a. IPC b. Network (eth & IP address) c. Mount d. PID e. User f. UTS (Hostname & NIS) Containers
5. Confidential & Proprietary Google Cloud Platform 5 1. Linux cgroup 2. Linux Namespace a. IPC b. Network (eth & IP address) c. Mount d. PID e. User f. UTS (Hostname & NIS) Containers Container Image File System Metadata
6. Confidential & Proprietary Google Cloud Platform 6 docker run nginx
7. Google Cloud Platform Docker Containers IPC Network PID Hostname Mount nginx IPC Network PID Hostname Mount nginx IPC Network PID Hostname Mount nginx
8. Google Cloud Platform IPC Network PID Hostname Mounts nginx IPC Network PID Hostname Mount git pull IPC Network PID Hostname Mount nginx Docker Containers
9. Google Cloud Platform IPC Network PID Hostname Mounts nginx IPC Network PID Hostname Mount git pull IPC Network PID Hostname Mount nginx Docker Containers VOLUME VOLUME Host Volume
10. Google Cloud Platform IPC Network PID Hostname IPC Network PID Hostname Mount git pull IPC Network PID Hostname Mount nginx Docker Containers nginx Host Volume
11. Copyright 2015 Google Inc Container Cluster Management Node Node Cluster Node
12. Copyright 2015 Google Inc Container Cluster Management Node Node Node VOLUME?? VOLUME?? Cluster
13. Copyright 2015 Google Inc Container Cluster Management Node VOLUME
14. Copyright 2015 Google Inc Container Cluster Management Node NFS NFS NAS
15. Copyright 2015 Google Inc Node Container Cluster Management Node N FS N FS NAS
16. Google Cloud Platform Pods & Docker? confd nginx HUP W RITE READ etcd CHANGE nginx.conf app app app IP Address LB
17. Google Cloud Platform Container Container Pods & Docker? confd nginx HUP W RITE READ etcd CHANGE ? ? ? ?
18. Google Cloud Platform Pods & Docker? Container nginx confd foreman
19. Google Cloud Platform Container foreman Pods & Docker? nginx confd
20. Google Cloud Platform Container foreman Pods & Docker? Everything’s A-OK!! nginx confd Crash-Restart Loop
21. Kubernetes κυβερνήτης: Greek for “pilot” or “helmsman of a ship” the open source cluster manager from Google
22. Google Cloud Platform Pods Small group of containers & volumes Tightly coupled The atom of scheduling & placement Shared namespace • share IP address & localhost • share IPC, etc. Managed lifecycle • bound to a node, restart in place • can die, cannot be reborn with same ID Example: data puller & web server Consumers Content Manager File Puller Web Server Volume Pod
23. Google Cloud Platform Pods & Docker? confd nginx HUP W RITE READ etcd CHANGE nginx.conf app app app IP Address LB
24. Google Cloud Platform IPC Network Pods docker … --net=container:id --ipc=container:id Hostname cgroup Web Server Pod cgroup File Puller localhost
25. Google Cloud Platform Pods (TODO) docker … --net=container:id --ipc=container:id --pid=container:id https://github.com/docker /docker/issues/10163 IPC Network PID Hostname cgroup Web Server cgroup File Puller localhost
26. Thank you! Thanks! Ian Lewis twitter.com/IanMLewis