77 lines
3.5 KiB
Bash
Executable File
77 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# ╔══════════════════════════════════════════════════════════════════╗
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# ║ arch-dev roaming :: add_new_machine ║
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# ║ Onboard a new host into the roaming fleet: ║
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# ║ 1. push your SSH key (ssh-copy-id) ║
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# ║ 2. register it in ~/.config/roaming/hosts ║
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# ║ 3. optionally test the connection + mount ║
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# ╚══════════════════════════════════════════════════════════════════╝
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set -euo pipefail
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ROAMING_DIR="${ROAMING_DIR:-$HOME/.config/roaming}"
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ROAMING_HOSTS="${ROAMING_HOSTS:-$ROAMING_DIR/hosts}"
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ROAMING_DEFAULT_USER="${ROAMING_DEFAULT_USER:-$USER}"
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usage() {
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cat <<EOF
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Usage: add_new_machine.sh <name> <fqdn> [user] [mount]
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name short alias for the host (e.g. mail)
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fqdn reachable hostname (e.g. mail.tailnet.ts)
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user ssh user (default: $ROAMING_DEFAULT_USER)
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mount remote path to expose via sshfs (optional, e.g. / or /srv)
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Examples:
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add_new_machine.sh mail mail.tailnet.ts root /
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add_new_machine.sh proxy proxy.tailnet.ts admin /etc/caddy
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add_new_machine.sh dev dev-server.tailnet.ts wayne
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EOF
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exit 1
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}
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[[ $# -lt 2 ]] && usage
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NAME="$1"
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FQDN="$2"
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USER_ARG="${3:-$ROAMING_DEFAULT_USER}"
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MOUNT="${4:-}"
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mkdir -p "$ROAMING_DIR"
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touch "$ROAMING_HOSTS"
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# ── Guard: already registered? ────────────────────────────────────────────────
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if grep -qE "^\s*${NAME}\s" "$ROAMING_HOSTS" 2>/dev/null; then
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echo "✗ '$NAME' is already in $ROAMING_HOSTS"
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echo " edit the file directly to change it"
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exit 1
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fi
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# ── Step 1: SSH key ───────────────────────────────────────────────────────────
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echo "── Step 1: pushing SSH key to ${USER_ARG}@${FQDN} ──"
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echo " (you'll be prompted for the remote password once)"
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if ssh-copy-id "${USER_ARG}@${FQDN}"; then
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echo " ✓ key installed"
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else
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echo " ✗ ssh-copy-id failed — aborting, nothing registered"
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exit 1
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fi
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# ── Step 2: register ──────────────────────────────────────────────────────────
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echo "── Step 2: registering in $ROAMING_HOSTS ──"
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printf "%-10s %-26s %-8s %s\n" "$NAME" "$FQDN" "$USER_ARG" "$MOUNT" >> "$ROAMING_HOSTS"
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echo " ✓ registered"
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# ── Step 3: verify ────────────────────────────────────────────────────────────
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echo "── Step 3: verifying connection ──"
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if ssh -o BatchMode=yes -o ConnectTimeout=8 "${USER_ARG}@${FQDN}" 'echo ok' >/dev/null 2>&1; then
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echo " ✓ key-based SSH works"
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else
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echo " ⚠ key-based SSH test failed (host may still be fine — check manually)"
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fi
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echo ""
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echo "✓ Done. In a new shell (or after 'roaming-reload'):"
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echo " $NAME # interactive shell"
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echo " $NAME sudo systemctl status # run a command"
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[[ -n "$MOUNT" ]] && echo " mount_host $NAME # sshfs ${MOUNT} → /workspace/$NAME"
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