7.2. 部署 AWS Load Balancer Operator

运行以下命令，创建一个新项目来部署 AWS Load Balancer Operator：

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

运行以下命令，为 AWS Load Balancer Controller 创建 AWS IAM 策略（如果不存在）：

$ 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

为 AWS Load Balancer Operator 创建 AWS IAM 信任策略：

$ 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

为 AWS Load Balancer Operator 创建 AWS IAM 角色：

$ 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)

运行以下命令，将 AWS Load Balancer Operator 策略附加到之前创建的 IAM 角色中：

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

为 AWS Load Balancer Operator 创建 secret，以假定我们新创建的 AWS IAM 角色：

$ 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

安装 AWS Load Balancer Operator：

$ 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

使用 Operator 部署 AWS Load Balancer Controller 实例：

$ 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

检查 Operator 和控制器 pod 是否都在运行：

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

如果没有等待片刻并重试，您应该看到以下内容：

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