7.2. AWS Load Balancer Operator 배포

다음 명령을 실행하여 AWS Load Balancer Operator를 배포할 새 프로젝트를 생성합니다.

$ oc new-project aws-load-balancer-operator

다음 명령을 실행하여 AWS Load Balancer Controller에 대한 AWS IAM 정책을 생성합니다.

$ POLICY_ARN=$(aws iam list-policies --query \
     "Policies[?PolicyName=='aws-load-balancer-operator-policy'].{ARN:Arn}" \
     --output text)

$ if [[ -z "${POLICY_ARN}" ]]; then
    wget -O "${SCRATCH}/load-balancer-operator-policy.json" \
       https://raw.githubusercontent.com/kubernetes-sigs/aws-load-balancer-controller/main/docs/install/iam_policy.json
     POLICY_ARN=$(aws --region "$REGION" --query Policy.Arn \
     --output text iam create-policy \
     --policy-name aws-load-balancer-operator-policy \
     --policy-document "file://${SCRATCH}/load-balancer-operator-policy.json")
fi

AWS Load Balancer Operator에 대한 AWS IAM 신뢰 정책을 생성합니다.

$ cat <<EOF > "${SCRATCH}/trust-policy.json"
{
 "Version": "2012-10-17",
 "Statement": [
 {
 "Effect": "Allow",
 "Condition": {
   "StringEquals" : {
     "${OIDC_ENDPOINT}:sub": ["system:serviceaccount:aws-load-balancer-operator:aws-load-balancer-operator-controller-manager", "system:serviceaccount:aws-load-balancer-operator:aws-load-balancer-controller-cluster"]
   }
 },
 "Principal": {
   "Federated": "arn:aws:iam::$AWS_ACCOUNT_ID:oidc-provider/${OIDC_ENDPOINT}"
 },
 "Action": "sts:AssumeRoleWithWebIdentity"
 }
 ]
}
EOF

AWS Load Balancer Operator에 대한 AWS IAM 역할을 생성합니다.

$ ROLE_ARN=$(aws iam create-role --role-name "${CLUSTER}-alb-operator" \
   --assume-role-policy-document "file://${SCRATCH}/trust-policy.json" \
   --query Role.Arn --output text)

다음 명령을 실행하여 AWS Load Balancer Operator 정책을 이전에 생성한 IAM 역할에 연결합니다.

$ aws iam attach-role-policy --role-name "${CLUSTER}-alb-operator" \
     --policy-arn ${POLICY_ARN}

AWS Load Balancer Operator가 새로 생성된 AWS IAM 역할을 가정할 시크릿을 생성합니다.

$ cat << EOF | oc apply -f -
apiVersion: v1
kind: Secret
metadata:
  name: aws-load-balancer-operator
  namespace: aws-load-balancer-operator
stringData:
  credentials: |
    [default]
    role_arn = ${ROLE_ARN}
    web_identity_token_file = /var/run/secrets/openshift/serviceaccount/token
EOF

AWS Load Balancer Operator를 설치합니다.

$ cat << EOF | oc apply -f -
apiVersion: operators.coreos.com/v1
kind: OperatorGroup
metadata:
  name: aws-load-balancer-operator
  namespace: aws-load-balancer-operator
spec:
  upgradeStrategy: Default
---
apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  name: aws-load-balancer-operator
  namespace: aws-load-balancer-operator
spec:
  channel: stable-v1.0
  installPlanApproval: Automatic
  name: aws-load-balancer-operator
  source: redhat-operators
  sourceNamespace: openshift-marketplace
  startingCSV: aws-load-balancer-operator.v1.0.0
EOF

Operator를 사용하여 AWS Load Balancer 컨트롤러 인스턴스를 배포합니다.

$ cat << EOF | oc apply -f -
apiVersion: networking.olm.openshift.io/v1
kind: AWSLoadBalancerController
metadata:
  name: cluster
spec:
  credentials:
    name: aws-load-balancer-operator
  enabledAddons:
    - AWSWAFv2
EOF

Operator 및 컨트롤러 Pod가 둘 다 실행 중인지 확인합니다.

$ oc -n aws-load-balancer-operator get pods

잠시 대기하지 않고 다시 시도하면 다음이 표시됩니다.

NAME                                                             READY   STATUS    RESTARTS   AGE
aws-load-balancer-controller-cluster-6ddf658785-pdp5d            1/1     Running   0          99s
aws-load-balancer-operator-controller-manager-577d9ffcb9-w6zqn   2/2     Running   0          2m4s