Move VM dirs under state/vms

README.md

@@ -37,7 +37,7 @@ reboot
 ```
 
 ## VM Info File
-Each VM writes a metadata file at `state/vm-*/info` with the following fields:
+Each VM writes a metadata file at `state/vms/<id>/info` with the following fields:
 - `id`: unique identifier for the VM instance.
 - `pid`: Firecracker process ID.
 - `created_at`: timestamp when the VM was launched.

kill.sh

@@ -23,7 +23,7 @@ find_vm_info() {
   local query="$1"
   local info match_count=0 match=""
 
-  for info in state/vm-*/info; do
+  for info in state/vms/*/info; do
     [[ -f "$info" ]] || continue
     local id name
     id="$(get_prop "$info" "id")"

list.sh

@@ -9,7 +9,7 @@ get_prop() {
   awk -F= -v k="$key" '$1==k {print $2}' "$info"
 }
 
-for info in state/vm-*/info; do
+for info in state/vms/*/info; do
   id="$(get_prop "$info" "id")"
   name="$(get_prop "$info" "name")"
   created_at="$(get_prop "$info" "created_at")"

ps.sh

@@ -9,7 +9,7 @@ get_prop() {
   awk -F= -v k="$key" '$1==k {print $2}' "$info"
 }
 
-for info in state/vm-*/info; do
+for info in state/vms/*/info; do
   id="$(get_prop "$info" "id")"
   name="$(get_prop "$info" "name")"
   created_at="$(get_prop "$info" "created_at")"

rm.sh

@@ -23,7 +23,7 @@ find_vm_info() {
   local query="$1"
   local info match_count=0 match=""
 
-  for info in state/vm-*/info; do
+  for info in state/vms/*/info; do
     [[ -f "$info" ]] || continue
     local id name
     id="$(get_prop "$info" "id")"

run.sh

@@ -22,7 +22,8 @@ log "starting"
 
 DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 STATE="$DIR/state"
-mkdir -p "$STATE"
+VM_ROOT="$STATE/vms"
+mkdir -p "$VM_ROOT"
 
 FC_BIN="$DIR/firecracker"
 KERNEL="$DIR/vmlinux"
@@ -52,7 +53,7 @@ shopt -s nullglob
 name_taken() {
   local candidate="$1"
   local info existing_name
-  for info in "$STATE"/vm-*/info; do
+  for info in "$VM_ROOT"/*/info; do
     existing_name="$(awk -F= '$1=="name"{print $2}' "$info")"
     if [[ "$existing_name" == "$candidate" ]]; then
       return 0
@@ -165,7 +166,7 @@ fi
 
 VM_ID="$(head -c 32 /dev/urandom | xxd -p -c 256)"
 VM_TAG="${VM_ID:0:8}"
-VM_DIR="$STATE/vm-$VM_ID"
+VM_DIR="$VM_ROOT/$VM_ID"
 mkdir -p "$VM_DIR"
 
 API_SOCK="$STATE/fc-$VM_TAG.sock"

stop.sh

@@ -23,7 +23,7 @@ find_vm_info() {
   local query="$1"
   local info match_count=0 match=""
 
-  for info in state/vm-*/info; do
+  for info in state/vms/*/info; do
     [[ -f "$info" ]] || continue
     local id name
     id="$(get_prop "$info" "id")"

verify.sh

@@ -30,7 +30,7 @@ if ! ./run.sh; then
   exit 1
 fi
 
-VM_DIR="$(find state -maxdepth 1 -type d -name 'vm-*' -printf '%T@ %p\n' 2>/dev/null | sort -nr | head -n 1 | awk '{print $2}')"
+VM_DIR="$(find state/vms -maxdepth 1 -mindepth 1 -type d -printf '%T@ %p\n' 2>/dev/null | sort -nr | head -n 1 | awk '{print $2}')"
 if [[ -z "$VM_DIR" ]]; then
   log "no VM state directory found"
   exit 1