87 lines
1.9 KiB
Bash
Executable file
87 lines
1.9 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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log() {
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printf '[rm] %s\n' "$*"
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}
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usage() {
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cat <<'EOF'
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Usage: ./rm.sh <id-or-name-prefix>
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Removes VM artifacts from state/ and cleans up TAP and mapped devices.
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EOF
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}
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get_prop() {
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local info="$1"
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local key="$2"
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awk -F= -v k="$key" '$1==k {print $2}' "$info"
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}
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find_vm_info() {
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local query="$1"
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local info match_count=0 match=""
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for info in state/vm-*/info; do
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[[ -f "$info" ]] || continue
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local id name
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id="$(get_prop "$info" "id")"
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name="$(get_prop "$info" "name")"
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if [[ "$id" == "$query"* || "$name" == "$query"* ]]; then
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match="$info"
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match_count=$((match_count + 1))
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fi
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done
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if (( match_count == 0 )); then
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log "no VM found for prefix: $query"
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exit 1
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fi
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if (( match_count > 1 )); then
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log "multiple VMs found for prefix: $query"
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exit 1
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fi
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printf '%s' "$match"
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}
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QUERY="${1:-}"
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if [[ -z "$QUERY" || "$QUERY" == "-h" || "$QUERY" == "--help" ]]; then
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usage
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exit 1
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fi
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INFO_FILE="$(find_vm_info "$QUERY")"
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VM_DIR="${INFO_FILE%/info}"
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PID="$(get_prop "$INFO_FILE" "pid")"
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TAP="$(get_prop "$INFO_FILE" "tap")"
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API_SOCK="$(get_prop "$INFO_FILE" "api_sock")"
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BASE_LOOP="$(get_prop "$INFO_FILE" "base_loop")"
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COW_LOOP="$(get_prop "$INFO_FILE" "cow_loop")"
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DM_DEV="$(get_prop "$INFO_FILE" "dm_dev")"
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DM_NAME="$(get_prop "$INFO_FILE" "dm_name")"
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if [[ -n "$PID" ]]; then
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sudo kill "$PID" 2>/dev/null || true
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fi
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if [[ -n "$TAP" ]]; then
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sudo ip link del "$TAP" 2>/dev/null || true
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fi
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if [[ -n "$API_SOCK" ]]; then
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rm -f "$API_SOCK"
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fi
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if [[ -n "$DM_DEV" || -n "$DM_NAME" ]]; then
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sudo dmsetup remove "${DM_NAME:-$DM_DEV}" 2>/dev/null || true
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fi
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if [[ -n "$COW_LOOP" ]]; then
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sudo losetup -d "$COW_LOOP" 2>/dev/null || true
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fi
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if [[ -n "$BASE_LOOP" ]]; then
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sudo losetup -d "$BASE_LOOP" 2>/dev/null || true
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fi
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if [[ -d "$VM_DIR" ]]; then
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rm -rf "$VM_DIR"
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fi
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log "removed $VM_DIR"
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