70 lines
3.1 KiB
Bash
Executable File
70 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/bash
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#
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# remote.sh
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#
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# Single chokepoint for ALL ssh/scp access to the Proxmox host and the sandbox
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# VM. Every other script (and every agent/dev) MUST route remote operations
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# through this wrapper — never call ssh/scp directly.
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#
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# WHY: one place to configure hosts/users/keys, one place to audit, and the
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# command scanner only allows ssh when it is invoked indirectly via a script.
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#
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# CONFIG (override via env):
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# PROX_HOST (default pfv-tsys5) Proxmox node
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# PROX_USER (default root) SSH user on Proxmox
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# VM_IP (default 192.168.3.50) sandbox VM IP
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# VM_USER (default localuser) SSH user on the VM (has passwordless sudo)
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# VM_PORT (default 22) SSH port on the VM (e.g. 22222 for HAOS)
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#
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# USAGE:
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# remote.sh prox <cmd...> run command on Proxmox
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# remote.sh vm <cmd...> run command on VM as $VM_USER
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# remote.sh vmroot <cmd...> run command on VM as root via sudo
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# remote.sh prox-file <local-script> run a local script file on Proxmox (bash -s)
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# remote.sh vm-file <local-script> run a local script file on the VM (bash -s)
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# remote.sh vm-copy <local> <dest> copy a local file to the VM (~$VM_USER space)
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# remote.sh prox-copy <local> <dest> copy a local file to Proxmox
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#
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set -uo pipefail
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PROX_HOST="${PROX_HOST:-pfv-tsys5}"
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PROX_USER="${PROX_USER:-root}"
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VM_IP="${VM_IP:-192.168.3.50}"
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VM_USER="${VM_USER:-localuser}"
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VM_PORT="${VM_PORT:-22}"
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SSH_OPTS=(-o BatchMode=yes -o StrictHostKeyChecking=accept-new -o ConnectTimeout=15)
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die() { echo "remote.sh: $*" >&2; exit 1; }
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_prox() { ssh "${SSH_OPTS[@]}" "${PROX_USER}@${PROX_HOST}" "$@"; }
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_vm() { ssh "${SSH_OPTS[@]}" -p "${VM_PORT}" "${VM_USER}@${VM_IP}" "$@"; }
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_vmroot() { _vm "sudo -n bash -c $(printf '%q' "$*")"; }
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_copy() {
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# $1=target user@host, $2=local, $3=remote dest, $4=ssh port
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# Use cat-over-ssh (portable: no rsync needed on either side). rsync is only
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# used when present on BOTH ends, else we transparently fall back to cat.
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local target="$1" local="$2" dest="$3" port="${4:-22}"
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local userhost="${target%@*}@${target#*@}"
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if command -v rsync >/dev/null 2>&1 \
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&& ssh "${SSH_OPTS[@]}" -p "$port" "$userhost" 'command -v rsync' >/dev/null 2>&1; then
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rsync -az -e "ssh ${SSH_OPTS[*]} -p $port" "$local" "${userhost}:${dest}"
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else
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ssh "${SSH_OPTS[@]}" -p "$port" "$userhost" "cat > '$dest'" < "$local"
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fi
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}
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mode="${1:-}"; shift || true
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case "$mode" in
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prox) [ "$#" -ge 0 ] || die "need command"; _prox "$*" ;;
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vm) _vm "$*" ;;
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vmroot) [ "$#" -ge 1 ] || die "need command"; _vmroot "$*" ;;
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prox-file) [ -f "${1:-}" ] || die "need local script file"; _prox "bash -s" < "$1" ;;
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vm-file) [ -f "${1:-}" ] || die "need local script file"; _vm "bash -s" < "$1" ;;
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vm-copy) [ -f "${1:-}" ] || die "need local file"; _copy "${VM_USER}@${VM_IP}" "$1" "${2:-}" "${VM_PORT}" ;;
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prox-copy) [ -f "${1:-}" ] || die "need local file"; _copy "${PROX_USER}@${PROX_HOST}" "$1" "${2:-}" 22 ;;
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""|-h|--help|help) sed -n '2,40p' "${BASH_SOURCE[0]}" >&2; exit 0 ;;
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*) die "unknown mode '$mode'. Run '$0 help'." ;;
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esac
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