Re: [PATCH 2/6] systemd units: create nfs-config.service as single location to process config.

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Hello,

I finally got around to playing with these....
Here is what I found.

On 02/20/2014 01:55 AM, Neil Brown wrote:
> Instead of processing the config information into command lines every
> time it might be needed, do it once in a separate service that other
> services can Want.
> 
> Signed-off-by: NeilBrown <neilb@xxxxxxx>
> ---
>  systemd/README                   |    3 +--
>  systemd/nfs-config.service       |    7 +++++++
>  systemd/nfs-idmapd.service       |    5 +++--
>  systemd/nfs-mountd.service       |    5 +++--
>  systemd/nfs-server.service       |    4 +++-
>  systemd/rpc-gssd.service         |    4 +++-
>  systemd/rpc-statd-notify.service |    5 +++--
>  systemd/rpc-statd.service        |    5 +++--
>  systemd/rpc-svcgssd.service      |    5 +++--
>  9 files changed, 29 insertions(+), 14 deletions(-)
>  create mode 100644 systemd/nfs-config.service
> 
> diff --git a/systemd/README b/systemd/README
> index 8359530098f4..a2a5f0634726 100644
> --- a/systemd/README
> +++ b/systemd/README
> @@ -56,8 +56,7 @@ Distro specific commandline configuration can be provided by
>  installing a script /usr/lib/systemd/scripts/nfs-utils_env.sh
>  This should write /run/sysconfig/nfs-utils based on configuration
>  information such as in /etc/sysconfig/nfs or /etc/defaults/nfs.
> -It should write to a tmp file and rename to the target to
> -avoid parallel units seeing incomplete copies of the file.
> +It is run once by nfs-config.service.
>  
>  rpc.gssd and rpc.svcgssd are assumed to be needed if /etc/krb5.keytab
>  is present.
> diff --git a/systemd/nfs-config.service b/systemd/nfs-config.service
> new file mode 100644
> index 000000000000..4cf2ecc76e4a
> --- /dev/null
> +++ b/systemd/nfs-config.service
> @@ -0,0 +1,7 @@
> +[Unit]
> +Description=Preprocess NFS configuration
> +
> +[Service]
> +type=oneshot
This is a typo... It should be Type=oneshot

> +RemainAfterExit=yes
> +ExecStart=/usr/lib/systemd/scripts/nfs-utils_env.sh
Can this be moved from /usr/lib/systemd/scripts to /usr/lib/systemd/system
since the scripts directory does not exit and I don't think we
want to be creating directories under /usr/lib/systemd/

Finally, Its a bit confusing on how to get the new /run/sysconfig/nfs-utils
created. systemctl start nfs-config does not do it but 
systemctl restart nfs-config. 

Doesn't this also mean every time /etc/sysconfig/nfs is edited
a systemctl restart nfs-config has to be done to update the 
new /run/sysconfig/nfs-utils and then restart the server 
they are reconfigured? Or am I missing something?

If I'm not it seems a bit overly complicated and its not 
appeared to be documented anywhere... 

steved.

> diff --git a/systemd/nfs-idmapd.service b/systemd/nfs-idmapd.service
> index 7d0dd84d8a44..11895e234438 100644
> --- a/systemd/nfs-idmapd.service
> +++ b/systemd/nfs-idmapd.service
> @@ -3,9 +3,10 @@ Description=NFSv4 ID-name mapping service
>  
>  PartOf=nfs-utils.service
>  
> +Wants=nfs-config.service
> +After=nfs-config.service
> +
>  [Service]
>  EnvironmentFile=-/run/sysconfig/nfs-utils
> -ExecStartPre=-/usr/lib/systemd/scritps/nfs-utils_env.sh
> -
>  Type=forking
>  ExecStart=/usr/sbin/rpc.idmapd $RPCIDMAPDARGS
> diff --git a/systemd/nfs-mountd.service b/systemd/nfs-mountd.service
> index 90746a854b40..7ccc0f72012d 100644
> --- a/systemd/nfs-mountd.service
> +++ b/systemd/nfs-mountd.service
> @@ -6,9 +6,10 @@ After=network.target
>  PartOf=nfs-server.service
>  PartOf=nfs-utils.service
>  
> +Wants=nfs-config.service
> +After=nfs-config.service
> +
>  [Service]
>  EnvironmentFile=-/run/sysconfig/nfs-utils
> -ExecStartPre=-/usr/lib/systemd/scritps/nfs-utils_env.sh
> -
>  Type=forking
>  ExecStart=/usr/sbin/rpc.mountd $RPCMOUNTDARGS
> diff --git a/systemd/nfs-server.service b/systemd/nfs-server.service
> index 5779fd39ed34..2fa7387e1cb9 100644
> --- a/systemd/nfs-server.service
> +++ b/systemd/nfs-server.service
> @@ -10,9 +10,11 @@ After= nfs-idmapd.service rpc-statd.service
>  After= rpc-gssd.service rpc-svcgssd.service
>  Before= rpc-statd-notify.service
>  
> +Wants=nfs-config.service
> +After=nfs-config.service
> +
>  [Service]
>  EnvironmentFile=-/run/sysconfig/nfs-utils
> -ExecStartPre=-/usr/lib/systemd/scritps/nfs-utils_env.sh
>  
>  Type=oneshot
>  RemainAfterExit=yes
> diff --git a/systemd/rpc-gssd.service b/systemd/rpc-gssd.service
> index 375792804247..d4a381904de4 100644
> --- a/systemd/rpc-gssd.service
> +++ b/systemd/rpc-gssd.service
> @@ -9,9 +9,11 @@ ConditionPathExists=/etc/krb5.keytab
>  
>  PartOf=nfs-utils.service
>  
> +Wants=nfs-config.service
> +After=nfs-config.service
> +
>  [Service]
>  EnvironmentFile=-/run/sysconfig/nfs-utils
> -ExecStartPre=-/usr/lib/systemd/scritps/nfs-utils_env.sh
>  
>  Type=forking
>  ExecStart=/usr/sbin/rpc.gssd $GSSDARGS
> diff --git a/systemd/rpc-statd-notify.service b/systemd/rpc-statd-notify.service
> index 7742ac8c5d9a..6b13b323e758 100644
> --- a/systemd/rpc-statd-notify.service
> +++ b/systemd/rpc-statd-notify.service
> @@ -9,10 +9,11 @@ After=nfs-server.service
>  
>  PartOf=nfs-utils.service
>  
> +Wants=nfs-config.service
> +After=nfs-config.service
> +
>  [Service]
>  EnvironmentFile=-/run/sysconfig/nfs-utils
> -ExecStartPre=/usr/lib/systemd/scritps/nfs-utils_env.sh
> -
>  Type=oneshot
>  RemainAfterExit=yes
>  ExecStart=-/usr/sbin/sm-notify -d $SMNOTIFYARGS
> diff --git a/systemd/rpc-statd.service b/systemd/rpc-statd.service
> index 3f6cda16accd..c5795fd68f96 100644
> --- a/systemd/rpc-statd.service
> +++ b/systemd/rpc-statd.service
> @@ -7,9 +7,10 @@ After=network.target nss-lookup.target rpcbind.target
>  
>  PartOf=nfs-utils.service
>  
> +Wants=nfs-config.service
> +After=nfs-config.service
> +
>  [Service]
>  EnvironmentFile=-/run/sysconfig/nfs-utils
> -ExecStartPre=-/usr/lib/systemd/scritps/nfs-utils_env.sh
> -
>  Type=forking
>  ExecStart=/usr/sbin/rpc.statd --no-notify $STATDARGS
> diff --git a/systemd/rpc-svcgssd.service b/systemd/rpc-svcgssd.service
> index 6bd45884d991..32b786ec5c7d 100644
> --- a/systemd/rpc-svcgssd.service
> +++ b/systemd/rpc-svcgssd.service
> @@ -10,9 +10,10 @@ ConditionPathExists=|!@localstatedir@/run/gssproxy.pid
>  ConditionPathExists=|!/proc/net/rpc/use-gss-proxy
>  ConditionPathExists=/etc/krb5.keytab
>  
> +Wants=nfs-config.service
> +After=nfs-config.service
> +
>  [Service]
>  EnvironmentFile=-/run/sysconfig/nfs-utils
> -ExecStartPre=-/usr/lib/systemd/scritps/nfs-utils_env.sh
> -
>  Type=forking
>  ExecStart=/usr/sbin/rpc.svcgssd $SVCGSSDARGS
> 
> 
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