pct-create use BRIDGE default value

bin/pct-create

@@ -53,7 +53,7 @@ function create_container {
 		--memory $mem_in_mb \
 		--swap $swp_in_mb \
 		--hostname $CONTAINER_NAME \
-		--net0 name=eth0,bridge=vmbr0,ip=dhcp,firewall=1 \
+		--net0 name=eth0,bridge=$BRIDGE,ip=dhcp,firewall=1 \
 		--start \
 		--onboot true \
 		$(optional_public_keys) \

bin/pct-default

@@ -9,31 +9,108 @@ ARG1="${1:-}"
 # FUNCTIONS
 
 function usage {
-	echo "$(basename "$0") [--edit]"
+	echo "$(basename "$0") [--edit | --config]"
+}
+
+function parse_options {
+  COMMAND=show
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+    --edit)
+      COMMAND=edit
+      ;;    	
+    --config)
+      COMMAND=config
+      ;;    	
+    --help | -h)
+      usage && exit 0
+      ;;
+    *)
+      echo >&2 "Unknown option: $1" && usage && exit 2
+      ;;
+    esac
+
+    shift 1 # Move to the next argument
+  done
 }
 
 function show_defaults {
+	[[ ! -f $DEFAULT_CONFIG ]] && echo >&2 "config file missing: $DEFAUL_CONFIG" && exit 3
+
+	source "$DEFAULT_CONFIG"
 	echo "STORAGE_DISK=$STORAGE_DISK"
 	echo "STORAGE_SIZE=$STORAGE_SIZE"
+	echo "BRIDGE=$BRIDGE"
 	echo "MEMORY=$MEMORY"
 	echo "SWAP=$SWAP"
 	echo "CPU=$CPU"
 }
 
+function compute_cpu_cores {
+	nproc=$(nproc)
+	[[ $nproc -ge 16 ]] && cores=4
+	[[ $nproc -ge 8 ]] && cores=2
+	[[ $nproc -lt 8 ]] && cores=1
+	echo $cores
+}
 
-# MAIN
+function choose_from_selection {
+	local name=$1[@]
+	local selection=("${!name}")
+	local length=${#selection[@]}
+	[[ $length == 0 ]] && echo >&2 'no values from selection!' && exit 7
+	[[ $length == 1 ]] && chosen=${selection[0]} && return
 
-set -Eue
-[[ "$ARG1" == '--help' ]] && usage && exit 1
+	echo "$2:"
+	echo -----------------
+	
+	PS3="Choose number: "
+	select chosen in "${selection[@]}"; do
+		[[ -n $chosen ]] && break
+	done < /dev/tty
+}
+
+function choose_default {
+	echo 'initializing default values...'
+	storage_size='20G'
+	memory='2G'
+	swap='2G'
+	cpu=$(compute_cpu_cores)
 
-[[ ! -f $DEFAULT_CONFIG ]] && >&2 echo 'configuration file missing!' && exit 2
+	mapfile -t storages <<< $(pct-info list-zfs-pools)
+	choose_from_selection storages "TYPE=ZFSPOOL STORAGE LIST"
+	storage_disk=$chosen
 
+	mapfile -t bridges <<< $(pct-info list-bridges)
+	choose_from_selection bridges "BRIDGE LIST"
+	bridge=$chosen
 
-if [[ "$ARG1" == '--edit' ]]; then
-	editor $DEFAULT_CONFIG
-else
-	source $DEFAULT_CONFIG
-	show_defaults
-fi
+	cat >$DEFAULT_CONFIG <<EOF
+STORAGE_DISK=\${STORAGE_DISK:-$storage_disk}
+STORAGE_SIZE=\${STORAGE_SIZE:-$storage_size}
+BRIDGE=\${BRIDGE:-$bridge}
+MEMORY=\${MEMORY:-$memory}
+SWAP=\${SWAP:-$swap}
+CPU=\${CPU:-$cpu}
+EOF
+}
 
+function perform {
+	case "$COMMAND" in
+    show)
+      show_defaults
+      ;;
+    edit)
+      editor $DEFAULT_CONFIG
+      ;;
+    config)
+      choose_default    	
+      ;;
+    esac
+}
 
+# MAIN
+
+set -Eue
+parse_options $* 
+perform