AEWS Study 원클릭 배포

1. Amazon EKS 원클릭 배포 (EFS 생성 추가)

# YAML 파일 다운로드
curl -O https://s3.ap-northeast-2.amazonaws.com/cloudformation.cloudneta.net/K8S/eks-oneclick2.yaml

# CloudFormation 스택 배포
예시) aws cloudformation deploy --template-file eks-oneclick2.yaml --stack-name myeks --parameter-overrides KeyName=kp-gasida SgIngressSshCidr=$(curl -s ipinfo.io/ip)/32  MyIamUserAccessKeyID=AKIA5... MyIamUserSecretAccessKey='CVNa2...' ClusterBaseName=myeks --region ap-northeast-2

# CloudFormation 스택 배포 완료 후 작업용 EC2 IP 출력
aws cloudformation describe-stacks --stack-name myeks --query 'Stacks[*].Outputs[0].OutputValue' --output text

# 작업용 EC2 SSH 접속
ssh -i ~/.ssh/kp-gasida.pem ec2-user@$(aws cloudformation describe-stacks --stack-name myeks --query 'Stacks[*].Outputs[0].OutputValue' --output text)

2.기본 설정 및 EFS 확인

```bash
# default 네임스페이스 적용
**kubectl ns default**

# (옵션) context 이름 변경
NICK=<각자 자신의 닉네임>
**NICK=gasida**
kubectl ctx
kubectl config rename-context admin@myeks.ap-northeast-2.eksctl.io **$NICK@myeks**

# EFS 확인 : AWS 관리콘솔 EFS 확인해보자
mount -t nfs4 -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,noresvport ***<자신의 EFS FS ID>***.efs.ap-northeast-2.amazonaws.com:/ **/mnt/myefs**
**df -hT --type nfs4**
mount | grep nfs4
**echo "efs file test" > /mnt/myefs/memo.txt**
cat /mnt/myefs/memo.txt
**rm -f /mnt/myefs/memo.txt**

# 스토리지클래스 및 CSI 노드 확인
kubectl get sc
kubectl get sc gp2 -o yaml | yh
kubectl get csinodes

# 노드 정보 확인
kubectl get node --label-columns=node.kubernetes.io/instance-type,eks.amazonaws.com/capacityType,topology.kubernetes.io/zone
****eksctl get iamidentitymapping --cluster myeks
****
# 노드 IP 확인 및 PrivateIP 변수 지정
N1=$(kubectl get node --label-columns=topology.kubernetes.io/zone --selector=topology.kubernetes.io/zone=ap-northeast-2a -o jsonpath={.items[0].status.addresses[0].address})
N2=$(kubectl get node --label-columns=topology.kubernetes.io/zone --selector=topology.kubernetes.io/zone=ap-northeast-2b -o jsonpath={.items[0].status.addresses[0].address})
N3=$(kubectl get node --label-columns=topology.kubernetes.io/zone --selector=topology.kubernetes.io/zone=ap-northeast-2c -o jsonpath={.items[0].status.addresses[0].address})
echo "export N1=$N1" >> /etc/profile
echo "export N2=$N2" >> /etc/profile
echo "export N3=$N3" >> /etc/profile
echo $N1, $N2, $N3

# 노드 보안그룹 ID 확인
NGSGID=$(aws ec2 describe-security-groups --filters Name=group-name,Values=*ng1* --query "SecurityGroups[*].[GroupId]" --output text)
aws ec2 authorize-security-group-ingress --group-id $NGSGID --protocol '-1' --cidr 192.168.1.100/32

# 워커 노드 SSH 접속
ssh ec2-user@$N1 hostname
ssh ec2-user@$N2 hostname
ssh ec2-user@$N3 hostname

# 노드에 툴 설치
ssh ec2-user@$N1 sudo yum install links tree jq tcpdump sysstat -y
ssh ec2-user@$N2 sudo yum install links tree jq tcpdump sysstat -y
ssh ec2-user@$N3 sudo yum install links tree jq tcpdump sysstat -y

3.AWS LB/ExternalDNS, kube-ops-view 설치

# AWS LB Controller
helm repo add eks https://aws.github.io/eks-charts
helm repo update
helm install aws-load-balancer-controller eks/aws-load-balancer-controller -n kube-system --set clusterName=$CLUSTER_NAME \
  --set serviceAccount.create=false --set serviceAccount.name=aws-load-balancer-controller

# ExternalDNS
MyDomain=<자신의 도메인>
MyDomain=gasida.link
MyDnzHostedZoneId=$(aws route53 list-hosted-zones-by-name --dns-name "${MyDomain}." --query "HostedZones[0].Id" --output text)
echo $MyDomain, $MyDnzHostedZoneId
curl -s -O https://raw.githubusercontent.com/gasida/PKOS/main/aews/externaldns.yaml
MyDomain=$MyDomain MyDnzHostedZoneId=$MyDnzHostedZoneId envsubst < externaldns.yaml | kubectl apply -f -

# kube-ops-view
helm repo add geek-cookbook https://geek-cookbook.github.io/charts/
helm install kube-ops-view geek-cookbook/kube-ops-view --version 1.2.2 --set env.TZ="Asia/Seoul" --namespace kube-system
kubectl patch svc -n kube-system kube-ops-view -p '{"spec":{"type":"LoadBalancer"}}'
kubectl annotate service kube-ops-view -n kube-system "external-dns.alpha.kubernetes.io/hostname=kubeopsview.$MyDomain"
echo -e "Kube Ops View URL = http://kubeopsview.$MyDomain:8080/#scale=1.5"

# 이미지 정보 확인
kubectl get pods --all-namespaces -o jsonpath="{.items[*].spec.containers[*].image}" | tr -s '[[:space:]]' '\n' | sort | uniq -c

# eksctl 설치/업데이트 addon 확인
eksctl get addon --cluster $CLUSTER_NAME

# IRSA 확인
eksctl get iamserviceaccount --cluster $CLUSTER_NAME

4.프로메테우스 & 그라파나(admin / prom-operator) 설치 : 대시보드 추천 15757 17900 15172

# 사용 리전의 인증서 ARN 확인
CERT_ARN=`aws acm list-certificates --query 'CertificateSummaryList[].CertificateArn[]' --output text`
echo $CERT_ARN

# repo 추가
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts

# 파라미터 파일 생성
cat <<EOT > monitor-values.yaml
prometheus:
  prometheusSpec:
    podMonitorSelectorNilUsesHelmValues: false
    serviceMonitorSelectorNilUsesHelmValues: false
    retention: 5d
    retentionSize: "10GiB"

  verticalPodAutoscaler:
    enabled: true

  ingress:
    enabled: true
    ingressClassName: alb
    hosts: 
      - prometheus.$MyDomain
    paths: 
      - /*
    annotations:
      alb.ingress.kubernetes.io/scheme: internet-facing
      alb.ingress.kubernetes.io/target-type: ip
      alb.ingress.kubernetes.io/listen-ports: '[{"HTTPS":443}, {"HTTP":80}]'
      alb.ingress.kubernetes.io/certificate-arn: $CERT_ARN
      alb.ingress.kubernetes.io/success-codes: 200-399
      alb.ingress.kubernetes.io/load-balancer-name: myeks-ingress-alb
      alb.ingress.kubernetes.io/group.name: study
      alb.ingress.kubernetes.io/ssl-redirect: '443'

grafana:
  defaultDashboardsTimezone: Asia/Seoul
  adminPassword: prom-operator

  ingress:
    enabled: true
    ingressClassName: alb
    hosts: 
      - grafana.$MyDomain
    paths: 
      - /*
    annotations:
      alb.ingress.kubernetes.io/scheme: internet-facing
      alb.ingress.kubernetes.io/target-type: ip
      alb.ingress.kubernetes.io/listen-ports: '[{"HTTPS":443}, {"HTTP":80}]'
      alb.ingress.kubernetes.io/certificate-arn: $CERT_ARN
      alb.ingress.kubernetes.io/success-codes: 200-399
      alb.ingress.kubernetes.io/load-balancer-name: myeks-ingress-alb
      alb.ingress.kubernetes.io/group.name: study
      alb.ingress.kubernetes.io/ssl-redirect: '443'

defaultRules:
  create: false
kubeControllerManager:
  enabled: false
kubeEtcd:
  enabled: false
kubeScheduler:
  enabled: false
alertmanager:
  enabled: false
EOT

# 배포
kubectl create ns monitoring
helm install kube-prometheus-stack prometheus-community/kube-prometheus-stack --version 45.27.2 \
--set prometheus.prometheusSpec.scrapeInterval='15s' --set prometheus.prometheusSpec.evaluationInterval='15s' \
-f monitor-values.yaml --namespace monitoring

# Metrics-server 배포
kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml