我正在嘗試按照概述的說明在 Proxmox 上運行的 Alpine Linux LXC 上設定 NFS 伺服器這裡,但rpc.statd
拒絕啟動。以下是/var/log/messages
顯示錯誤的摘錄:
Nov 26 03:08:25 nfs daemon.notice rpc.statd[226]: Version 2.1.1 starting
Nov 26 03:08:25 nfs daemon.warn rpc.statd[226]: Flags: TI-RPC
Nov 26 03:08:25 nfs daemon.err rpc.statd[226]: Unable to prune capability 0 from bounding set: Operation not permitted
Nov 26 03:08:25 nfs daemon.err /etc/init.d/rpc.statd[224]: start-stop-daemon: failed to start `/sbin/rpc.statd'
Nov 26 03:08:25 nfs daemon.err /etc/init.d/rpc.statd[210]: ERROR: rpc.statd failed to start
Nov 26 03:08:25 nfs daemon.err /etc/init.d/nfs[228]: ERROR: cannot start nfs as rpc.statd would not start
我已經為 LXC 建立了一個自訂 apparmor 設定檔(發現這裡)給服務足夠的運行權限,但這並沒有幫助。
答案1
事實證明我需要CAP_SETPCAP
運行 NFS 伺服器的能力。
這可以透過編輯容器的設定檔/etc/pve/lxc/CTID.conf
(其中CTID
是您的容器 ID)來完成,如下所示:
....
# clear cap.drop
lxc.cap.drop:
# copy drop list from /usr/share/lxc/config/common.conf
lxc.cap.drop = mac_admin mac_override sys_time sys_module sys_rawio
# copy drop list from /usr/share/lxc/config/alpine.common.conf with setpcap commented
lxc.cap.drop = audit_write
lxc.cap.drop = ipc_owner
lxc.cap.drop = mknod
# lxc.cap.drop = setpcap
lxc.cap.drop = sys_nice
lxc.cap.drop = sys_pacct
lxc.cap.drop = sys_ptrace
lxc.cap.drop = sys_rawio
lxc.cap.drop = sys_resource
lxc.cap.drop = sys_tty_config
lxc.cap.drop = syslog
lxc.cap.drop = wake_alarm
瞧!