Store VM metadata as JSON

list.sh

@@ -3,28 +3,51 @@ set -euo pipefail
 
 shopt -s nullglob
 
-get_prop() {
-  local info="$1"
-  local key="$2"
-  awk -F= -v k="$key" '$1==k {print $2}' "$info"
-}
+statuses=()
+ids=()
+names=()
+ips=()
+created=()
+max_name=4
+max_ip=2
+GREEN='\033[32m'
+YELLOW='\033[33m'
+RESET='\033[0m'
 
-for info in state/vms/*/info; do
-  id="$(get_prop "$info" "id")"
-  name="$(get_prop "$info" "name")"
-  created_at="$(get_prop "$info" "created_at")"
-  guest_ip="$(get_prop "$info" "guest_ip")"
-  pid="$(get_prop "$info" "pid")"
-  tap="$(get_prop "$info" "tap")"
-  api_sock="$(get_prop "$info" "api_sock")"
+for vm_json in state/vms/*/vm.json; do
+  id="$(jq -r '.meta.id // empty' "$vm_json")"
+  name="$(jq -r '.meta.name // empty' "$vm_json")"
+  created_at="$(jq -r '.meta.created_at // empty' "$vm_json")"
+  guest_ip="$(jq -r '.meta.guest_ip // empty' "$vm_json")"
+  pid="$(jq -r '.meta.pid // empty' "$vm_json")"
+  api_sock="$(jq -r '.meta.api_sock // empty' "$vm_json")"
 
-  status="stale"
+  status="stopped"
   if [[ -n "$pid" && -n "$api_sock" ]]; then
     if ps -p "$pid" -o comm=,args= 2>/dev/null | rg -q "firecracker.*--api-sock $api_sock"; then
       status="running"
     fi
   fi
 
-  printf 'status=%s id=%s name=%s created_at=%s guest_ip=%s pid=%s tap=%s\n' \
-    "$status" "$id" "$name" "$created_at" "$guest_ip" "$pid" "$tap"
+  short_id="${id:0:12}"
+  statuses+=("$status")
+  ids+=("$short_id")
+  names+=("$name")
+  ips+=("$guest_ip")
+  created+=("$created_at")
+  if (( ${#name} > max_name )); then
+    max_name=${#name}
+  fi
+  if (( ${#guest_ip} > max_ip )); then
+    max_ip=${#guest_ip}
+  fi
+done
+
+for i in "${!ids[@]}"; do
+  color="$YELLOW"
+  if [[ "${statuses[$i]}" == "running" ]]; then
+    color="$GREEN"
+  fi
+  printf '%-10b %-12s %-*s %-*s %s\n' \
+    "${color}[${statuses[$i]}]${RESET}" "${ids[$i]}" "$max_name" "${names[$i]}" "$max_ip" "${ips[$i]}" "${created[$i]}"
 done