Simplify wwctl server

- Always run in the foreground
- Always log to stdout/err (unless syslog is requested)
- Update systemd to reload with a direct signal
- Omit any pidfile for "warewulfd"

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

userdocs/contents/configuration.rst

@@ -114,8 +114,7 @@ explained as follows:
   services.)
 
 * ``warewulf:syslog``: This determines whether Warewulf server logs go
-  to syslog or are written directly to a log file. (e.g.,
-  ``/var/log/warewulfd.log``)
+  to syslog.
 
 * ``nfs:export paths``: Warewulf can automatically set up these NFS
   exports.

userdocs/contents/initialization.rst

@@ -48,22 +48,3 @@ systemd service:
 .. code-block:: console
 
    # systemctl enable --now warewulfd
-
-You can also check and control the Warewulf service using the ``wwctl``
-command line program as follows:
-
-.. code-block:: console
-
-   # wwctl server status
-
-.. note::
-
-   If the Warewulf service is running via systemd, restarting
-   stopping, and starting it from the ``wwctl`` command may result in
-   unexpected results.
-
-Logs
-----
-
-The Warewulf server logs are by default written to
-``/var/log/warewulfd.log``.

userdocs/contributing/development-environment-kvm.rst

@@ -121,8 +121,6 @@ Build and install Warewulf on wwdev
    sudo wwctl overlay build -a
 
    # Start the Warewulf daemon
-   sudo wwctl ready
-   sudo wwctl server start
-   sudo wwctl server status
+   sudo wwctl server &
 
 Boot your node and watch the bash and the output of the Warewulfd process

userdocs/contributing/development-environment-vagrant.rst

@@ -223,7 +223,7 @@ Vagrantfile
       systemd name: nfs-server
     CONF
 
-                sed -i 's@ExecStart=/usr/bin/wwctl server start@ExecStart=/usr/bin/wwctl server start -d -v@' /usr/lib/systemd/system/warewulfd.service
+                sed -i 's@ExecStart=/usr/bin/wwctl server@ExecStart=/usr/bin/wwctl server -d -v@' /usr/lib/systemd/system/warewulfd.service
                 systemctl enable --now warewulfd
 
                 wwctl configure --all

userdocs/contributing/development-environment-vbox.rst

@@ -137,9 +137,7 @@ I have VirtualBox running on my desktop.
    sudo wwctl overlay build -a
 
    # Start the Warewulf daemon
-   sudo wwctl ready
-   sudo wwctl server start
-   sudo wwctl server status
+   sudo wwctl server &
 
 4. Create a new guest VM instance inside the VirtualBox to be the
    Warewulf client/compute node. Under the system configuration make