도커 레지스트리 구축자료
http://teddykwon.com/2017/01/12/docker-nexus-docker-registry.html
https://www.slideshare.net/ssuser800974/sonatype-nexus-docker-registry
https://blog.sonatype.com/maxences-technical-corner
https://www.lesstif.com/display/ci/Private+Repository+for+Docker
네임스페이스
https://vitalflux.com/kubernetes-create-delete-namespaces-namespaces/
쿠버 교육자료
https://event.openinfradays.kr/2018/schedule1/
https://event.openinfradays.kr/2018/session1/track_1_0
쿠버 고가용성
https://kubernetes.io/docs/setup/independent/high-availability/#first-steps-for-both-methods
SSH
https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/
http://blog.jeonghwan.net/%EC%9B%90%EA%B2%A9%EB%A1%9C%EA%B7%B8%EC%9D%B8ssh-%EC%A0%91%EC%86%8D/
K8s의 HA 구성 참고 URL 입니다.
기본 공식 문서
https://kubernetes.io/docs/setup/independent/high-availability/
https://kubernetes.io/docs/setup/independent/setup-ha-etcd-with-kubeadm/
HAProxy 로드 밸런서
http://cbonte.github.io/haproxy-dconv/1.8/configuration.html#5.3
https://d2.naver.com/helloworld/284659
http://dveamer.github.io/architecture/HAProxyAndKeepalived.html
https://blog.naver.com/forioso/220510365522
K8s master ha 기타
https://medium.com/@bambash/ha-kubernetes-cluster-via-kubeadm-b2133360b198
https://github.com/cookeem/kubeadm-ha
https://labs.consol.de/kubernetes/2018/05/25/kubeadm-backup.html
https://velotio.com/blog/2018/6/15/kubernetes-high-availability-kubeadm
https://elastisys.com/2018/01/25/setting-highly-available-kubernetes-clusters/
https://blog.inkubate.io/install-and-configure-a-multi-master-kubernetes-cluster-with-kubeadm/