Add tmux demo driver and table variant of egress IP check

run-demo.sh opens a 2x2 tmux grid: egress-IP table looping in a
netshoot pod, kubectl get px watch, and both create scripts running
with COUNT (default 4) proxies. show-egress-ips-table.sh is the
pane-sized one-line-per-proxy variant used by the driver.

Co-Authored-By: Claude <noreply@anthropic.com>

docs/demo/run-demo.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+# Demo driver: opens a tmux session with a 2x2 pane grid:
+#
+#   top-left:     show-egress-ips-table.sh in a 10s loop, run inside the
+#                 netshoot pod against the in-cluster discovery Service
+#   top-right:    watch -n3 kubectl get px
+#   bottom-left:  create-kubernetes-proxies.sh <count>
+#   bottom-right: create-gcp-proxies.sh <count>
+#
+# Usage:
+#   ./run-demo.sh
+#
+# Optional environment:
+#   COUNT         proxies each create script makes (default: 4)
+#   SESSION       tmux session name (default: proxy-demo; an existing
+#                 session with this name is killed and recreated)
+#   NETSHOOT_POD  pod to exec into for the egress-IP loop (default: netshoot)
+#   DEMO_DIR      where the demo scripts live (default: this script's dir)
+set -euo pipefail
+
+COUNT="${COUNT:-4}"
+SESSION="${SESSION:-proxy-demo}"
+NETSHOOT_POD="${NETSHOOT_POD:-netshoot}"
+DEMO_DIR="${DEMO_DIR:-$(cd "$(dirname "$0")" && pwd)}"
+BASE_URL="http://egress-proxies-operator-controller-manager-discovery-service.egress-proxies-operator-system.svc.cluster.local:8090"
+
+for tool in tmux kubectl; do
+    if ! command -v "${tool}" &> /dev/null; then
+        echo "ERROR: ${tool} is required but not installed" >&2
+        exit 1
+    fi
+done
+
+if ! kubectl get pod "${NETSHOOT_POD}" &> /dev/null; then
+    echo "ERROR: pod ${NETSHOOT_POD} not found — start one with:" >&2
+    echo "  kubectl run netshoot --image=nicolaka/netshoot -- sleep infinity" >&2
+    exit 1
+fi
+
+echo "Copying show-egress-ips-table.sh into pod ${NETSHOOT_POD} ..."
+kubectl cp "${DEMO_DIR}/show-egress-ips-table.sh" "${NETSHOOT_POD}:/tmp/show-egress-ips-table.sh"
+
+if tmux has-session -t "${SESSION}" 2> /dev/null; then
+    echo "Killing existing tmux session ${SESSION}"
+    tmux kill-session -t "${SESSION}"
+fi
+
+# 2x2 grid: after these splits pane indexes are 0 top-left, 1 top-right,
+# 2 bottom-left, 3 bottom-right; tiled layout evens them into quarters.
+tmux new-session -d -s "${SESSION}"
+tmux split-window -h -t "${SESSION}:0"
+tmux split-window -v -t "${SESSION}:0.0"
+tmux split-window -v -t "${SESSION}:0.1"
+tmux select-layout -t "${SESSION}:0" tiled
+
+loop_cmd="BASE_URL=${BASE_URL}; while true; do bash /tmp/show-egress-ips-table.sh \"\$BASE_URL\"; echo; sleep 10; done"
+tmux send-keys -t "${SESSION}:0.0" "kubectl exec -it ${NETSHOOT_POD} -- bash -c '${loop_cmd}'" C-m
+tmux send-keys -t "${SESSION}:0.1" "watch -n3 kubectl get px" C-m
+tmux send-keys -t "${SESSION}:0.2" "bash ${DEMO_DIR}/create-kubernetes-proxies.sh ${COUNT}" C-m
+tmux send-keys -t "${SESSION}:0.3" "bash ${DEMO_DIR}/create-gcp-proxies.sh ${COUNT}" C-m
+
+tmux select-pane -t "${SESSION}:0.2"
+if [ -n "${TMUX:-}" ]; then
+    tmux switch-client -t "${SESSION}"
+else
+    tmux attach-session -t "${SESSION}"
+fi

docs/demo/show-egress-ips-table.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+# Demo: condensed-table variant of show-egress-ips.sh, made to fit a small
+# tmux pane. One line per proxy: which proxy the request goes through, its
+# endpoint, location (zone/geo attribute), and the egress IP the IP-echo
+# site saw — or unhealthy/FAILED.
+#
+# Usage:
+#   ./show-egress-ips-table.sh <BASE_URL>    e.g. ./show-egress-ips-table.sh localhost:8090
+#
+# Optional environment:
+#   TOKEN        bearer token for the discovery API (see docs/api.md)
+#   IP_ECHO_URL  site that returns the caller's IP as JSON with an "ip" field
+#                (default: https://api.ipify.org?format=json)
+set -euo pipefail
+
+if [ $# -ne 1 ]; then
+    echo "usage: $(basename "$0") <BASE_URL>  (e.g. localhost:8090)" >&2
+    exit 1
+fi
+BASE_URL="$1"
+IP_ECHO_URL="${IP_ECHO_URL:-https://api.ipify.org?format=json}"
+
+for tool in curl jq; do
+    if ! command -v "${tool}" &> /dev/null; then
+        echo "ERROR: ${tool} is required but not installed" >&2
+        exit 1
+    fi
+done
+
+auth_args=()
+if [ -n "${TOKEN:-}" ]; then
+    auth_args=(-H "Authorization: Bearer ${TOKEN}")
+fi
+
+if ! proxies_json=$(curl -sS --fail "${auth_args[@]}" "${BASE_URL}/v1/proxies") \
+    || ! echo "${proxies_json}" | jq -e . > /dev/null 2>&1; then
+    echo "ERROR: could not fetch proxy list from ${BASE_URL}" >&2
+    exit 1
+fi
+
+total=$(echo "${proxies_json}" | jq -r '.count')
+fmt="%-31s %-21s %-21s %s\n"
+
+echo "${total} proxies @ $(date +%H:%M:%S)"
+# shellcheck disable=SC2059
+printf "${fmt}" "PROXY" "ENDPOINT" "LOCATION" "EGRESS-IP"
+
+probed=0
+skipped=0
+failed=0
+while IFS= read -r proxy; do
+    id=$(echo "${proxy}" | jq -r '.id')
+    endpoint=$(echo "${proxy}" | jq -r '"\(.ip):\(.port)"')
+    location=$(echo "${proxy}" | jq -r '.attributes.zone // .attributes.geo // "-"')
+    healthy=$(echo "${proxy}" | jq -r '.healthy')
+
+    if [ "${healthy}" != "true" ]; then
+        # shellcheck disable=SC2059
+        printf "${fmt}" "${id}" "${endpoint}" "${location}" "(unhealthy)"
+        skipped=$((skipped + 1))
+        continue
+    fi
+
+    if response=$(curl -sS --max-time 10 -x "http://${endpoint}" "${IP_ECHO_URL}" 2> /dev/null); then
+        egress=$(echo "${response}" | jq -r '.ip // "?"' 2> /dev/null || echo "?")
+        probed=$((probed + 1))
+    else
+        egress="FAILED"
+        failed=$((failed + 1))
+    fi
+    # shellcheck disable=SC2059
+    printf "${fmt}" "${id}" "${endpoint}" "${location}" "${egress}"
+done < <(echo "${proxies_json}" | jq -c '.proxies[]')
+
+echo "-- ${probed} probed, ${skipped} unhealthy, ${failed} failed --"

docs/plans-executions/2026-08-11-2220-demo-scripts.md

@@ -31,6 +31,23 @@ Added on the same branch before the first commit:
   27 EU zones so the fleet gets egress IPs from different locations.
   Env overrides: `ZONES`, `GCP_PROVIDER` (default `gcp-eu`), `NAMESPACE`.
 
+## Extra — run-demo.sh, show-egress-ips-table.sh
+
+Second round of iterative additions:
+
+- `run-demo.sh` — tmux demo driver: 2x2 tiled grid with the egress-IP
+  table looping every 10s inside a netshoot pod (script `kubectl cp`'d
+  into the pod, `BASE_URL` set to the in-cluster Service FQDN),
+  `watch -n3 kubectl get px`, and both create scripts auto-running with
+  `COUNT` proxies each (default 4). Env knobs: `COUNT`, `SESSION`,
+  `NETSHOOT_POD`, `DEMO_DIR` (defaults to the script's own dir).
+- `show-egress-ips-table.sh` — condensed one-line-per-proxy variant of
+  `show-egress-ips.sh` sized for a tmux pane: PROXY / ENDPOINT /
+  LOCATION (zone→geo attribute fallback) / EGRESS-IP columns, with
+  `(unhealthy)` and `FAILED` inline instead of verbose output. The
+  verbose script stays for standalone use; the demo driver uses the
+  table variant.
+
 Worth noting: beyond the user's sample manifest, the gcp script also
 writes the picked zone into `attributes.zone`, so the discovery API
 exposes each proxy's location and leases can select on it. The zone list