NetVM: CDP on by default (deterministic port), --headless mode, netvm-cdp.sh helper

bin/netvm-cdp.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+# netvm-cdp.sh <profile> — show how to reach a profile's CDP endpoint.
+set -euo pipefail
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+. "$SCRIPT_DIR/netvm-names.sh"
+netvm_names "${1:?usage: netvm-cdp.sh <profile>}"
+TAIL_IP=$(tailscale ip -4 2>/dev/null | head -1)
+echo "profile:  $NODE"
+echo "cdp:      http://$PEER_IP:$CDP_PORT/json/list   (from this host)"
+echo "remote:   ssh -L $CDP_PORT:$PEER_IP:$CDP_PORT super@${TAIL_IP:-<tail-ip-of-this-host>}"
+echo "launch:   netvm-chrome.sh $NODE [--headless]   (CDP on by default)"

bin/netvm-chrome.sh

@@ -1,18 +1,40 @@
 #!/usr/bin/env bash
-# netvm-chrome.sh <profile> [url] — launch a chrome-box profile inside its
-# dedicated NetVM netns. 1:1: profile = node = warp identity = egress IP.
+# netvm-chrome.sh [--headless] [--cdp-port N|--no-cdp] <profile> [url]
+# Launch a chrome-box profile inside its dedicated NetVM netns.
+# 1:1: profile = node = warp identity = egress IP.
+# CDP is on by default (deterministic port) so agents can automate the
+# session via Playwright/Puppeteer; --headless runs without a display.
 # Run as your normal user (uses sudo -n only for allowlisted netns ops).
 set -euo pipefail
-PROFILE="${1:?usage: netvm-chrome.sh <profile> [url]}"
-URL="${2:-}"
-NODE="$PROFILE"
 NETVM_BIN="$(cd "$(dirname "$0")" && pwd)"
+. "$NETVM_BIN/netvm-names.sh"
+HEADLESS=0; CDP_OVERRIDE=""; NO_CDP=0; PROFILE=""; URL=""
+usage() { echo "usage: netvm-chrome.sh [--headless] [--cdp-port N|--no-cdp] <profile> [url]"; }
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --headless) HEADLESS=1; shift;;
+    --cdp-port) CDP_OVERRIDE="$2"; shift 2;;
+    --cdp-port=*) CDP_OVERRIDE="${1#*=}"; shift;;
+    --no-cdp) NO_CDP=1; shift;;
+    -h|--help) usage; exit 0;;
+    *) if [ -z "$PROFILE" ]; then PROFILE="$1"; elif [ -z "$URL" ]; then URL="$1";
+       else echo "unexpected: $1"; usage; exit 1; fi; shift;;
+  esac
+done
+[ -n "$PROFILE" ] || { usage; exit 1; }
+NODE="$PROFILE"
+netvm_names "$NODE"
 CHROME_BOX="${CHROME_BOX_BIN:-$HOME/Projects/chrome-box/chrome-box}"
 [ -x "$CHROME_BOX" ] || { echo "chrome-box not found at $CHROME_BOX (set CHROME_BOX_BIN)"; exit 1; }
 [ -f "/etc/netvm/${NODE}.conf" ] || { echo "no warp identity for '$NODE' — human: netvm-new-identity.sh $NODE"; exit 1; }
-sudo -n "$NETVM_BIN/netvm-node-up.sh" "$NODE" | tail -2
-if [ -n "$URL" ]; then
-  exec sudo -n "$NETVM_BIN/netvm-enter.sh" "$NODE" "$(id -u)" "$(id -g)" "$HOME" -- "$CHROME_BOX" launch "$PROFILE" "$URL"
-else
-  exec sudo -n "$NETVM_BIN/netvm-enter.sh" "$NODE" "$(id -u)" "$(id -g)" "$HOME" -- "$CHROME_BOX" launch "$PROFILE"
-fi
+
+if [ "$NO_CDP" = 1 ]; then CDP=""; elif [ -n "$CDP_OVERRIDE" ]; then CDP="$CDP_OVERRIDE"; else CDP="$CDP_PORT"; fi
+
+sudo -n "$NETVM_BIN/netvm-node-up.sh" "$NODE" | tail -1
+
+LAUNCH_ARGS=(launch "$PROFILE")
+[ "$HEADLESS" = 1 ] && LAUNCH_ARGS+=(--no-sandbox --headless)
+[ -n "$CDP" ] && LAUNCH_ARGS+=(--cdp-port "$CDP")
+[ -n "$URL" ] && LAUNCH_ARGS+=("$URL")
+[ -n "$CDP" ] && echo "cdp: http://$PEER_IP:$CDP/json/list  (local)  |  ssh -L $CDP:$PEER_IP:$CDP <user>@<tail-ip>  (remote)"
+exec sudo -n "$NETVM_BIN/netvm-enter.sh" "$NODE" "$(id -u)" "$(id -g)" "$HOME" -- "$CHROME_BOX" "${LAUNCH_ARGS[@]}"

bin/netvm-names.sh

@@ -9,5 +9,6 @@ netvm_names() {
   VETH="ve-${_tag}"
   VPEER="vp-${_tag}"
   _idx=$(( 0x${_tag:0:3} % 200 + 10 ))
+  CDP_PORT=$(( 9222 + 0x${_tag:4:3} % 2000 ))
   GW="10.201.${_idx}.1"; PEER_IP="10.201.${_idx}.2"; SUB="10.201.${_idx}.0/30"
 }