setup: warning deprecation of bastille0 option and updates documentation

README.md

@@ -110,7 +110,7 @@ automatically. This feature is new since version 0.10.20231013.
 
 ```shell
 ishmael ~ # bastille setup -h
-ishmael ~ # Usage: bastille setup [pf|bastille0|zfs|vnet]
+ishmael ~ # Usage: bastille setup [pf|network|zfs|vnet]
 ```
 
 On fresh installations it is likely safe to run `bastille setup` with no

docs/chapters/subcommands/setup.rst

@@ -9,7 +9,7 @@ options for a Bastille host with one command.
 .. code-block:: shell
 
   ishmael ~ # bastille setup -h        ## display setup help
-  ishmael ~ # bastille setup bastille0 ## only configure loopback interface
+  ishmael ~ # bastille setup network   ## only configure loopback interface
   ishmael ~ # bastille setup pf        ## only configure default firewall
   ishmael ~ # bastille setup zfs       ## only configure ZFS storage
   ishmael ~ # bastille setup vnet      ## only configure VNET bridge

usr/local/share/bastille/setup.sh

@@ -30,12 +30,12 @@
 
 bastille_config="/usr/local/etc/bastille/bastille.conf"
 . /usr/local/share/bastille/common.sh
-# shellcheck source=/usr/local/etc/bastille/bastille.conf
 
-if [ ! -f "${bastille_config}" ]
-then
+if [ ! -f "${bastille_config}" ]; then
   cp /usr/local/etc/bastille/bastille.conf.sample ${bastille_config}
 fi
+
+# shellcheck source=/usr/local/etc/bastille/bastille.conf
 . ${bastille_config}
 
 usage() {
@@ -141,7 +141,12 @@ help|-h|--help)
 pf|firewall)
     configure_pf
     ;;
-network|bastille0|loopback)
+bastille0)
+    # TODO remove in future release 0.13
+    warn "'bastille setup bastille0' will be deprecated in the next 0.13 version."
+    configure_network
+    ;;
+network|loopback)
     configure_network
     ;;
 zfs|storage)