[Bug 1971935] Re: Invalid pipefs-directory prevents rpc-gssd.service from starting

[Andreas Hasenack]

Could puppet classes be trying to handle the nfs services individually,
and perhaps focusing on the     var-lib-nfs-rpc_pipefs.mount unit,
instead of letting the system start the dependencies as needed?

After I install nfs-common I seem to have the exact opposite of you:
run-rpc_pipefs.mount is activated, and var-lib-nfs-rpc_pipefs.mount is
not:

root at j-nfs:~# systemctl status var-lib-nfs-rpc_pipefs.mount 
○ var-lib-nfs-rpc_pipefs.mount - RPC Pipe File System
     Loaded: loaded (/lib/systemd/system/var-lib-nfs-rpc_pipefs.mount; static)
     Active: inactive (dead)
      Where: /var/lib/nfs/rpc_pipefs
       What: sunrpc

root at j-nfs:~# systemctl status run-rpc_pipefs.mount
● run-rpc_pipefs.mount - RPC Pipe File System
     Loaded: loaded (/run/systemd/generator/run-rpc_pipefs.mount; generated)
     Active: active (mounted) since Fri 2022-07-01 12:35:05 UTC; 2min 17s ago
      Where: /run/rpc_pipefs
       What: sunrpc
      Tasks: 0 (limit: 1119)
     Memory: 20.0K
        CPU: 2ms
     CGroup: /system.slice/run-rpc_pipefs.mount

Jul 01 12:35:05 j-nfs systemd[1]: Mounting RPC Pipe File System...
Jul 01 12:35:05 j-nfs systemd[1]: Mounted RPC Pipe File System.

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https://bugs.launchpad.net/bugs/1971935

Title:
  Invalid pipefs-directory prevents rpc-gssd.service from starting

Status in nfs-utils package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu 22.04 Server
  Package version: 1:2.6.1-1ubuntu1

  Package nfs-common/nfs-utils provides /etc/nfs.conf and /lib/systemd/system/rpc-gssd.service.
  /etc/nfs.conf (and seems to be copied from /usr/share/nfs-common/conffiles/nfs.conf) has the configuration:
  ...
  [general]
  pipefs-directory=/run/rpc_pipefs
  ...

  When attempting to start rpc-gssd it gives the following error:
  ...
  ERROR: opendir(/run/rpc_pipefs) failed: No such file or directory
  ...

  There is a systemd unit called var-lib-nfs-rpc_pipefs.mount which
  mounts this directory as /var/lib/nfs/rpc_pipefs. However this does
  not match with the configuration in nfs.conf

  It's worth mentioning that sometimes it seems a systemd unit is
  generated (run-rpc_pipefs.mount) which ensures /run/rpc_pipefs is
  created and everything works as expected. Seems to be random.

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