Nomad, a love story

Transcript

1. Nomad … A love story @sebamontini
2. $whoami • DevOps Engineer @ Jampp • Amateur Golfer • Whisky enthusiast • #AWSmeetupBA organizer • HUG founder (?) @sebamontini
3. scheduler? @sebamontini
4. In the beginning... @sebamontini • Docker Swarm 1.12 • Custom Ansible Role for deployment • Small services and PoCs • No mission critical apps • Portainer as UI • Just run stuff there and forget about them
5. A common friend introduced us... @sebamontini • Already using: ◦ Consul in prod for health-checking and (some) service discovery ◦ Terraform for AWS infrastructure provisioning ◦ Vagrant for running the tests of our Ansible roles • Thinking about implementing Vault
6. We fell in love... @sebamontini • Easy to schedule batch jobs • Simple integration with consul • Cost reduction (in our case) • Multiple drivers beyond docker • Multi-region • Simple HCL job definition
7. We’re on a break... @sebamontini • No new service being scheduled in Swarm • All batch jobs run in Nomad • Spots ASG for Nomad jobs • Self registering with Consul
8. Who gets custody? @sebamontini • Some small services still running in swarm • Testing traefik with consul as backend • PoC with nginx+consul-template • Swarm ASG freezed
9. Time for a Demo? @sebamontini
10. No way! @sebamontini
11. Installing nomad @sebamontini
12. Installing nomad @sebamontini
13. Installing nomad @sebamontini
14. Scheduler types @sebamontini • Service The service scheduler is designed for scheduling long lived services that should never go down • Batch Designed for jobs that are short lived, finishing in a few minutes to a few days • System The system scheduler is used to register jobs that should be run on all clients that meet the job's constraints
15. Job specification @sebamontini
16. Job specification @sebamontini
17. Job specification @sebamontini
18. Run jobs @sebamontini
19. drivers @sebamontini • Docker • Rkt • Lxc • Isolated exec • Java • Qemu • Raw exec (disabled by default)
20. We are hiring! :) jampp.com/jobs
21. Thanks :) Thanks sebastian@jampp.com @sebamontini github.com/sebamontini