12.3. 准备 AWS 帐户

为 ACK Operator 创建 AWS Identity Access Management (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:ack-system:${ACK_SERVICE_ACCOUNT}"
   }
 },
 "Principal": {
   "Federated": "arn:aws:iam::$AWS_ACCOUNT_ID:oidc-provider/${OIDC_ENDPOINT}"
 },
 "Action": "sts:AssumeRoleWithWebIdentity"
 }
 ]
}
EOF

为 ACK Operator 创建 AWS IAM 角色，以假设附加 AmazonS3FullAccess 策略：

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

$ aws iam attach-role-policy --role-name "ack-${ACK_SERVICE}-controller" \
     --policy-arn ${POLICY_ARN}