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Prerequisites:

# https://rook.io/docs/rook/v1.1/k8s-pre-reqs.html
# Centos
sudo yum install -y lvm2

# Ubuntu
sudo apt-get install -y lvm2

3-nodes k8s cluster (kubespray)

# vagrant
vagrant up

kubectl:

vagrant ssh k8s-1

mkdir -p ~/.kube
sudo cp /etc/kubernetes/admin.conf .kube/config
sudo chown -R vagrant:vagrant .kube

kubectl cluster-info

helm:

$ curl -LO https://git.io/get_helm.sh
$ chmod 700 get_helm.sh
$ ./get_helm.sh

kubectl --namespace kube-system create serviceaccount tiller
kubectl create clusterrolebinding tiller-cluster-rule \
 --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
kubectl --namespace kube-system patch deploy tiller-deploy \
 -p '{"spec":{"template":{"spec":{"serviceAccount":"tiller"}}}}'

helm init --history-max 200

https://medium.com/@madeeshafernando/error-release-name-failed-namespaces-default-is-forbidden-user-99b3b6cb2720

Rook:

kubectl create -f https://raw.githubusercontent.com/rook/rook/v1.1.2/cluster/examples/kubernetes/ceph/common.yaml
kubectl create -f https://raw.githubusercontent.com/rook/rook/v1.1.2/cluster/examples/kubernetes/ceph/operator.yaml
kubectl -n rook-ceph get pod

ceph cluster:

# test
kubectl create -f https://raw.githubusercontent.com/rook/rook/v1.1.2/cluster/examples/kubernetes/ceph/cluster-test.yaml

# production
kubectl create -f https://raw.githubusercontent.com/rook/rook/v1.1.2/cluster/examples/kubernetes/ceph/cluster.yaml

kubectl get pod -n rook-ceph

rook/rook#2460

ceph toolbox: https://rook.io/docs/rook/v1.1/ceph-toolbox.html

kubectl create -f https://raw.githubusercontent.com/rook/rook/v1.1.2/cluster/examples/kubernetes/ceph/toolbox.yaml
kubectl -n rook-ceph get pod -l "app=rook-ceph-tools"

kubectl -n rook-ceph exec -it $(kubectl -n rook-ceph get pod -l "app=rook-ceph-tools" -o jsonpath='{.items[0].metadata.name}') bash

ceph status
ceph osd status
ceph df
rados df

storageClass:

kubectl create -f https://raw.githubusercontent.com/rook/rook/v1.1.2/cluster/examples/kubernetes/ceph/csi/rbd/storageclass.yaml
kubectl get storageclass
rook-ceph-block

test PVC:

kubectl create -f https://raw.githubusercontent.com/rook/rook/v1.1.2/cluster/examples/kubernetes/ceph/csi/rbd/pvc.yaml
kubectl get pvc

# kubectl delete pvc rbd-pvc

test pod:

kubectl create -f https://raw.githubusercontent.com/rook/rook/v1.1.2/cluster/examples/kubernetes/ceph/csi/rbd/pod.yaml
kubectl describe pod csirbd-demo-pod

smoke test for ceph-rbd:

  • TBD

zookeeper: https://github.com/helm/charts/tree/master/incubator/zookeeper

vi values.yaml
$ helm repo add incubator http://storage.googleapis.com/kubernetes-charts-incubator
$ helm install --name zookeeper -f zookeeper/values.yaml incubator/zookeeper
kubectl get all -l app=zookeeper

smoke test for zookeepr:

  • TBD
kubectl exec zookeeper-0 -- bin/zkServer.sh status


kubectl exec zookeeper-1 -- bin/zkCli.sh create /zk_test my_data
kubectl exec zookeeper-1 -- bin/zkCli.sh set /zk_test junk
kubectl exec zookeeper-1 -- bin/zkCli.sh get /zk_test

https://tde.sktelecom.com/wiki/spaces/viewspace.action?key=TEBRDDATA

Type II, 관심분야 R&D 그룹

연구 내용

  • 데이터 활용한 미디어 서비스 향상 방안
    • IPTV 플랫폼 진화
    • OTT / Music 서비스 강화
  • 데이터 플랫폼의 진화 방향
    • 실시간 데이터 처리 시스템
    • 데이터 분석 및 활용 방안
  • ML / AI 활용 방안
    • 사용자 데이터, 컨텍스트 데이터 바탕으로 인공지능 기술 활용

문제(Problem)

ywkim:

  • 재사용 불가능한 코드 및 프로젝트 결과물(애플리케이션, 문서 등)
    • 노가다의 연속...
  • 너무 다양하고 많은 소프트웨어 컴포넌트(프로젝트 담당자 마다 스택이 다 다름)
  • (제조) 레거시 환경
    • 할말하않
  • 운영 복잡도 증가
    • 클라우드 네이티브 데이터 인프라스트럭처 & 파이프라인 구축 필요

R&D 아이템 제안(Proposals)

TBD

결과물(Output)

TBD

Refs.