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CoreOS를 이용한 Docker 관리툴 소개

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왜 CoreOS가 Docker 관리툴에 적합한 OS인가?
CoreOS를 기반으로한 Docker 컨테이너 관리툴에 대해 간단하게 소개합니다.

Veröffentlicht in: Technologie
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CoreOS를 이용한 Docker 관리툴 소개

  1. 1. CoreOS를 이용한 Docker 관리툴 소개 Docker Seoul Casual Talk #1 / Oct 15, 2014 by @subicura (김충섭)
  2. 2. Why CoreOS?
  3. 3. minimal all in one, but minimal! 䡬 설치용량 - coreos_production_iso_image.iso (142.6Mb) 䡬 메모리사용량 - 40% less RAM than average Linux 䡬 필요한 프로그램만 설치 䡬 apt-get/yum등 설치 안됨 䡬 docker/etcd/fleet/git/curl등 설치됨 䡬 readonly files 䡬 /usr 디렉토리와 .bashrc등이 readonly
  4. 4. update 자동 업데이트 䡬 자동 업데이트 䡬 2중화는 필수! 䡬 필요하면 no reboot option 설정 䡬 minimal하기때문에 서버의 업데이트가 부담이 없음 䡬 평생 무료 업데이트 (아마도) 䡬 security 䡬 Shellshork?? => auto update!
  5. 5. clustering 클러스터링 기본구성 䡬 etcd 䡬 쉽고 간단한 key-value manager 䡬 consul/zookeeper.. 등이 필요없음 䡬 systemd 䡬 사용하기 쉽고 간편 䡬 fleet = etcd + systemd 䡬 puppet/chef/ansible/salt.. 등이 필요없음
  6. 6. fleet 쉽고 간단한 배포 for i in $(seq 1 ${SERVICE_NUM}); do fleetctl start ${SERVICE_NAME}-${BUILD_NUMBER}@${i}.service done # cleanup for i in $(seq 1 ${SERVICE_NUM}); do for check in $(seq 1 ${CHECK_NUM}); do if [ $(fleetctl list-units --no-legend --fields unit,active | grep ${SERVICE_NAME}-$ {BUILD_NUMBER}@${i}.service | awk '{print $2}') = 'active' ]; then fleetctl destroy $(fleetctl list-units --no-legend --fields unit | grep ${SERVICE_NAME}- | grep @${i} | grep -v ${BUILD_NUMBER}) break fi sleep 5 done done *무중단 배포를 추가 프로그램 설치 없이 쉘 스크립트로 간단하게
  7. 7. cloud-config 기본 필수파일 설치도 쉽게 write_files: - path: /etc/fstab permissions: 0644 content: | 192.168.0.2:/nfs /mnt/nfs nfs rw,hard,intr,nolock,rsize=8192,wsize=8192,timeo=14 0 0 - path: /etc/systemd/journald.conf permissions: 0644 content: | [Journal] SystemMaxUse=50M *바이너리를 포함해 어떤 파일도 설치시 설정 가능
  8. 8. and OpenSource!
  9. 9. Private Cloud with Docker
  10. 10. 관리툴의 조건 䡬 GUI - 쉬운 컨테이너 설치 및 상태 확인 䡬 Detail - native의 기능을 모두 사용 가능 䡬 Cluster - 확장을 쉽게 䡬 Easy Install - 설치를 쉽게 䡬 Service Template - 컨테이너 구성을 하나의 서비스로 䡬 More - CI, Auto Scale…
  11. 11. http://panamax.io Docker Management for Humans 쉽게 설치하고 쉽게 사용함
  12. 12. Stampede http://stampede.io hybrid IaaS/Docker orcherstration platform VM/Docker 관리 네트워크 UI/REST API/Command Line Tool/Python Library
  13. 13. Stampede http://www.youtube.com/watch? v=UsQ9cVLieaQ&feature=youtu.be

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