OpenShift 101

Transcript

1. OpenShift Tomáš Kukrál @tomkukral ICT FIT ČVUT & tech@SU SUT@SH 2016-04-19
2. 1 container
3. 2 containers
4. 2 nodes
5. Kubernetes orchestration network storage multi-node container orchestrator
7. Components node pod rc svc pv, pvc
8. selectors
9. Kubernetes is not enough? JSON || YAML rolling updates build process ?!
10. 3rd party container caused a kernel panic Who the hell uses public containers from docker hub? For all you know they were made by Russian hackers! via youtube PivpCKEiQOQ
11. PaaS origin || enterprise v3 || v2
12. Web console https://master:8443
13. Router
14. Router
15. Source code builds deploiments image registry image stream
16. Builds Docker build S2I build Custom build No build
17. Source-to-Image source code injection builder image flags assemble run save-artifacts run /usr/libexec/s2i
18. Deployment replication controllers
19. Network POD-POD communication SkyDNS router.default.svc.cluster.local SDN (OVS) OpenFlow rules lbr0 → br0 VXLAN
20. same host: eth0 (in A’s netns) → vethA → br0 → vethB → eth0 (in B’s netns) remote host: eth0 (in A’s netns) → vethA → br0 → vxlan0 → network [1] → vxlan0 → br0 → vethB → eth0 (in B’s netns) external host: eth0 (in A’s netns) → vethA → br0 → tun0 → (NAT) → eth0 (physical device) → Internet
21. Installation openshift-ansible configuration variables
22. Operation oc --help
23. ... let's break it
24. Tricks https://github.com/redhat-cip/rcip-openshift-ansible oc login https://oc.fit.cvut.cz:8443 --token=bflmpsvz oc new-app https://github.com/tomkukral/ocdebug.git oc import-image tomkukral/haproxy-mysql docs.openshift.org
25. QA?
26. Tomáš Kukrál @tomkukral linkedin.com/in/tomaskukral
27. BA