@zackzhang , 请帮忙看看
离线安装后，alertmanager启动失败， describe pod信息如下：
Containers:
alertmanager:
Container ID: docker://2e3c1f721ee5164b2ea8c2fa31924616809965416cd67438d2a8d04e9822e855
Image: dockerhub.kubekey.local/prom/alertmanager:v0.21.0
Image ID: docker-pullable://dockerhub.kubekey.local/prom/alertmanager@sha256:913293083cb14085bfc01018bb30d1dcbbc9ed197ae21ef2ca917b0d29265198
Ports: 9093/TCP, 9094/TCP, 9094/UDP
Host Ports: 0/TCP, 0/TCP, 0/UDP
Args:
--config.file=/etc/alertmanager/config/alertmanager.yaml
--storage.path=/alertmanager
--data.retention=120h
--cluster.listen-address=[$(POD_IP)]:9094
--web.listen-address=:9093
--web.route-prefix=/
--cluster.peer=alertmanager-main-0.alertmanager-operated.kubesphere-monitoring-system.svc:9094
--cluster.peer=alertmanager-main-1.alertmanager-operated.kubesphere-monitoring-system.svc:9094
--cluster.peer=alertmanager-main-2.alertmanager-operated.kubesphere-monitoring-system.svc:9094
State: Waiting
Reason: CrashLoopBackOff
Last State: Terminated
Reason: Error
Message: level=info ts=2021-03-04T10:45:24.285Z caller=main.go:216 msg="Starting Alertmanager" version="(version=0.21.0, branch=HEAD, revision=4c6c03ebfe21009c546e4d1e9b92c371d67c021d)"level=info ts=2021-03-04T10:45:24.285Z caller=main.go:217 build_context="(go=go1.14.4, user=root@dee35927357f, date=20200617-08:54:02)"
Exit Code: 2
