CoreOS and Panamax - September 2014

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1. CoreOS and Panamax Jonas Rosland Developer Advocate @virtualswede jonas.rosland@emc.com emccode.github.io September 2014
2. CoreOS Based on Gentoo Kernel + Containers, nothing else Built for running HA environments Updates applied automatically
3. Containers Docker, of course, but also others like LXC and nspawn Isolation from other applications Link containers together Less overhead than VMs
4. systemd System management daemon Services, timers and one-off jobs Logging through journal
5. etcd Highly available Key-Value database store Provides service discovery and shared configurations Others like it are Consul and Zookeeper Provides a locking mechanism for safe(r) automatic updates Public etcd service: https://discovery.etcd.io/ This is frickin awesome, as you'll see :)
6. etcdctl command $ set services/db1 10.0.0.101 $ set services/db2 10.0.0.102 $ set services/db-master db1 $ get services/db-master "db1" $ get services/db1 "10.0.0.101"
7. etcd automatic registration
8. fleet Deploy docker containers on arbitrary hosts in a cluster Distribute services across a cluster using machine-level anti- affinity Maintain N instances of a service Re-scheduling on machine failure Discover machines running in the cluster
9. fleet
10. Demotime!