我有一个基于AKS-构造模板的AKS环境

在某个时候，fluxconfig-agent开始报告不健康。我检查了日志，当它尝试从https://eastus.dp.kubernetesconfiguration.azure.com获取配置时，看起来有一个401

{"Message":"2022/10/03 17:09:01 URL:u003e https://eastus.dp.kubernetesconfiguration.azure.com/subscriptions/xxx/resourceGroups/my-aks/provider/Microsoft.ContainerService-managedclusters/clusters/my-aks/configurations/getPendingConfigs?api-version=2021-11-01","LogType":"ConfigAgentTrace","LogLevel":"Information","Environment":"prod","Role":"ClusterConfigAgent","Location":"eastus","ArmId":"/subscriptions/xxx/resourceGroups/my-aks/providers/Microsoft.ContainerService/managedclusters/my-aks","CorrelationId":"","AgentName":"FluxConfigAgent","AgentVersion":"1.6.0","AgentTimestamp":"2022/10/03 17:09:01"}
    {"Message":"2022/10/03 17:09:01 GET configurations returned response code {401}","LogType":"ConfigAgentTrace","LogLevel":"Information","Environment":"prod","Role":"ClusterConfigAgent","Location":"eastus","ArmId":"/subscriptions/xxx/resourceGroups/my-aks/providers/Microsoft.ContainerService/managedclusters/my-aks","CorrelationId":"","AgentName":"FluxConfigAgent","AgentVersion":"1.6.0","AgentTimestamp":"2022/10/03 17:09:01"}  
    {"Message":"2022/10/03 17:09:01 Failed to GET configurations with ResponseCode : {401}","LogType":"ConfigAgentTrace","LogLevel":"Information","Environment":"prod","Role":"ClusterConfigAgent","Location":"eastus","ArmId":"/subscriptions/xxx/resourceGroups/my-aks/providers/Microsoft.ContainerService/managedclusters/my-aks","CorrelationId":"","AgentName":"FluxConfigAgent","AgentVersion":"1.6.0","AgentTimestamp":"2022/10/03 17:09:01"}
    {"Message":"Error in the getting the Configurations: error {%!s(u003cnilu003e)}","LogType":"ConfigAgentTrace","LogLevel":"Error","Environment":"prod","Role":"ClusterConfigAgent","Location":"eastus","ArmId":"/subscriptions/xxx/resourceGroups/my-aks/providers/Microsoft.ContainerService/managedclusters/my-aks","CorrelationId":"","AgentName":"FluxConfigAgent","AgentVersion":"1.6.0","AgentTimestamp":"2022/10/03 17:09:01"}
    {"Message":"2022/10/03 17:09:01 "Errorcode: 401, Message Unauthorized client credentials., Target /subscriptions/xxx/resourceGroups/my-aks/provider/Microsoft.ContainerService-managedclusters/clusters/my-aks/configurations/getPendingConfigs"","LogType":"ConfigAgentTrace","LogLevel":"Information","Environment":"prod","Role":"ClusterConfigAgent","Location":"eastus","ArmId":"/subscriptions/xxx/resourceGroups/my-aks/providers/Microsoft.ContainerService/managedclusters/my-aks","CorrelationId":"","AgentName":"FluxConfigAgent","AgentVersion":"1.6.0","AgentTimestamp":"2022/10/03 17:09:01"}

这里有没有人熟悉fluxconfig-agent如何进行身份验证，以及可能导致401的原因？