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Launching containers with fleet

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Launching containers with fleet

Docker Seoul Meetup 3rd / Lightning talk

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Launching containers with fleet

  1. 1. Launching Containers with fleet Docker Seoul Meetup #3 / Feb 14, 2014 by @subicura (김충섭)
  2. 2. deployment
  3. 3. container
  4. 4. image를 배포하고 container를 stop/start만 하면 되는데..
  5. 5. fleet
  6. 6. a distributed init system
  7. 7. fleet = systemd + etcd
  8. 8. fleet = systemd + etcd System and Service Manager CoreOS default init system Fedora, Gentoo, Arch 사용중 / RedHat, Debian, Ubuntu 곧
  9. 9. fleet = systemd + etcd
  10. 10. [Unit] Description=My Service Requires=docker.service After=docker.service [Service] ExecStart=/usr/bin/docker run --rm --name my_service busybox /bin/sh -c "while true; do echo Hello World; sleep 1; done" ExecStop=/usr/bin/docker kill my_service systemd service file sample
  11. 11. systemd command 시작 - systemctl start [service] 종료 - systemctl stop [service] 강제종료 - systemctl kill [service] 상태보기 - systemctl status [service] 로그보기 - journalctl -u [service]
  12. 12. [Unit] Description=My Service Requires=docker.service After=docker.service [Service] ExecStart=/usr/bin/docker run --rm --name my_service busybox /bin/sh -c "while true; do echo Hello World; sleep 1; done" ExecStop=/usr/bin/docker kill my_service [X-Fleet] MachineMetadata=type=app Conflicts=%p@*.service fleet unit file sample
  13. 13. fleet-specific properties MachineID - 해당하는 machine에서 실행 MachineOf - 특정 서비스가 수행중인 machine에서 실행 MachineMetadata - metadata를 가진 machine에서 실행 Conflicts - 해당 서비스가 수행중인 machine을 피해서 실행 Global - 전체 machines에서 실행
  14. 14. fleetctl command 서버리스트 - fleetctl list-machines 유닛리스트 - fleetctl list-units 등록 - fleetctl submit [service] 시작 - fleetctl start [service] 종료 - fleetctl stop [service] 제거 - fleetctl destroy [service] 상태보기 - fleetctl status [service] 로그보기 - fleetctl journal [service]
  15. 15. fleet list-machines
  16. 16. fleet list-units
  17. 17. fleet start nginx-confd.service
  18. 18. DEMO
  19. 19. summary easy (with coreos) - systemd + etcd + fleetd Deploy docker containers on arbitrary hosts in a cluster re-scheduling on machine failure Automatically SSH into the machine running a job difficult server balance - no check cpu/memory/hdd/network Lack of option Lack of GUI Tool
  • seohoseok14

    Mar. 11, 2015
  • hyoungseunglee

    Feb. 27, 2015
  • jeongdeoksu

    Feb. 25, 2015
  • 831jsh

    Feb. 25, 2015

Launching containers with fleet Docker Seoul Meetup 3rd / Lightning talk

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