feat(operations): add production readiness gate (#23)

README.md

@@ -122,6 +122,9 @@ simulation limits are documented in the
 The current consumer evidence and remaining external gates are tracked in the
 [SpaceGame consumer pilot](docs/integration/spacegame-pilot.md) and independent
 [Unscouted consumer pilot](docs/integration/unscouted-pilot.md).
+The fail-closed launch decision, redacted evidence matrix, and two-machine
+external-network procedure are in
+[production readiness and real-network canary](docs/operations/production-readiness.md).
 
 
 ## Development

docs/evidence/production-readiness-v1.json

@@ -0,0 +1,124 @@
+{
+  "schemaVersion": 1,
+  "kind": "rendezvous-production-readiness",
+  "evaluatedCommit": "6bad659c123ad45ad0d9d07f93217c2e8c42d459",
+  "decision": "not-ready",
+  "localGates": [
+    {
+      "id": "immutable-release-artifacts",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "Rebuild after the readiness tooling checkpoint."
+    },
+    {
+      "id": "debug-and-release-verification",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "Re-run after the readiness tooling checkpoint."
+    },
+    {
+      "id": "real-consumer-pilots",
+      "status": "pending",
+      "evidenceRef": "docs/integration/spacegame-pilot.md",
+      "note": "Pin and re-run both real consumer revisions."
+    },
+    {
+      "id": "candidate-capacity-resilience",
+      "status": "pending",
+      "evidenceRef": "docs/evidence/capacity/v2/candidate-2cpu.json",
+      "note": "Re-run the five-minute candidate on the tooling checkpoint."
+    },
+    {
+      "id": "production-process-recovery",
+      "status": "pending",
+      "evidenceRef": "docs/operations/capacity-and-resilience.md",
+      "note": "Re-run process restart, drain, and rollback gates."
+    },
+    {
+      "id": "security-privacy-observability",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "Re-run the combined release verification matrix."
+    }
+  ],
+  "externalGates": [
+    {
+      "id": "public-package-empty-cache-restore",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "The public registry does not currently resolve version 1.0.0."
+    },
+    {
+      "id": "signed-publication",
+      "status": "pending",
+      "evidenceRef": "docs/releases/README.md",
+      "note": "Protected release credentials and immutable tag publication are required."
+    },
+    {
+      "id": "source-preserving-udp-ingress",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "The public ingress path needs packet-level source and reply validation."
+    },
+    {
+      "id": "same-lan-direct-canary",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "Requires two independently operated game clients."
+    },
+    {
+      "id": "home-nat-direct-canary",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "Requires distinct residential networks."
+    },
+    {
+      "id": "restrictive-cgnat-typed-failure",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "Requires a known restrictive carrier topology."
+    },
+    {
+      "id": "firewall-blocked-udp-typed-failure",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "Requires an independently controlled firewall rule."
+    },
+    {
+      "id": "ipv6-direct-canary",
+      "status": "pending",
+      "evidenceRef": "docs/operations/production-readiness.md",
+      "note": "Requires two IPv6-capable external clients and public ingress."
+    },
+    {
+      "id": "public-rate-shaped-capacity",
+      "status": "pending",
+      "evidenceRef": "docs/operations/capacity-and-resilience.md",
+      "note": "The full public HTTP and UDP traffic mix has not been measured."
+    },
+    {
+      "id": "one-hour-candidate-endurance",
+      "status": "pending",
+      "evidenceRef": "docs/operations/capacity-and-resilience.md",
+      "note": "A production-shaped one-hour candidate run is required."
+    },
+    {
+      "id": "alert-delivery",
+      "status": "pending",
+      "evidenceRef": "docs/operations/incident-runbooks.md",
+      "note": "A real alert sink must observe trigger and recovery notifications."
+    },
+    {
+      "id": "cold-standby-rollback-drill",
+      "status": "pending",
+      "evidenceRef": "docs/operations/capacity-and-resilience.md",
+      "note": "The deployment must demonstrate the host-visible recovery objective."
+    },
+    {
+      "id": "documentation-only-runbook-exercise",
+      "status": "pending",
+      "evidenceRef": "docs/operations/incident-runbooks.md",
+      "note": "An independent operator must execute the runbooks using only the docs."
+    }
+  ]
+}

docs/integration/test-client.md

@@ -116,6 +116,9 @@ rm deploy/compose/secrets/signing-key
 codes are stable automation contracts. Informational events use stdout and
 failures use stderr.
 
+Successful direct-connection and direct-traffic events include the coarse
+`addressFamily` value `ipv4` or `ipv6`. They never include the peer address.
+
 The deployment smoke performs the full health, publish, join, mediation, direct
 traffic, outcome-report, and cleanup flow using bounded waits:
 
@@ -220,3 +223,6 @@ least-scope publisher credential from the deployment secret boundary and set the
 external service, mediator, and matching scope variables described in the
 [secure Linux deployment smoke](../deployment/linux.md#http-and-udp-smoke).
 Run representative external-network tests; loopback success is not NAT coverage.
+Use the redacting, bounded
+[real-network canary procedure](../operations/production-readiness.md) for formal
+production evidence rather than committing raw TestClient JSON.

docs/operations/production-readiness.md

@@ -0,0 +1,191 @@
+# Production-readiness decision and real-network canary
+
+Tracking: #23
+
+Rendezvous v1 is **not production-ready** until every required gate in
+[`production-readiness-v1.json`](../evidence/production-readiness-v1.json) is
+recorded as `pass`. The machine-checkable decision is intentionally fail-closed:
+
+```bash
+./scripts/check-production-readiness.sh
+```
+
+Exit `0` means every required gate is present and passing, exit `3` means the
+record is valid but at least one gate is pending or failed, and exit `2` means
+the record itself is malformed or contains identifier-, endpoint-, account-, or
+credential-shaped data. Editing only the top-level decision cannot make the
+check pass.
+
+The checked-in record is an index, not a log archive. It contains one
+repository-relative evidence reference and a short categorical note per gate.
+Raw packet captures, client event streams, publisher credentials, public or
+private network endpoints, listing IDs, and player/account identifiers must not
+be committed.
+
+## Required decision matrix
+
+The local matrix covers immutable artifacts, Debug and Release verification,
+both real game consumers, the candidate capacity/resilience profile,
+production-process recovery, and the combined security/privacy/observability
+gate. These may be reproduced by the project team on a clean candidate commit.
+
+The external matrix remains distinct because a local namespace, loopback,
+container bridge, or second process on one machine cannot prove it:
+
+| Gate | Required evidence |
+| --- | --- |
+| Public package empty-cache restore | A clean machine restores the exact Client and Contracts version using only the documented public sources. |
+| Signed publication | The immutable tag publishes packages, image digest, SBOMs, provenance, checksums, and verifiable signatures through the protected release workflow. |
+| Source-preserving UDP ingress | Packet capture on the service host proves the mediator observes each peer's real source tuple and replies from the advertised public tuple; no UDP proxy rewrites either direction. |
+| Same-LAN direct canary | Two independently operated game clients establish authenticated direct LiteNetLib traffic. |
+| Home-NAT direct canary | Host and joiner on distinct residential networks establish authenticated direct LiteNetLib traffic. |
+| Restrictive/CGNAT and blocked-UDP canaries | Each bounded join exits `12`, records a typed terminal category, and exposes the game-owned fallback policy without hanging or claiming success. |
+| IPv6 direct canary | Two external IPv6 clients record authenticated direct traffic and an observed `ipv6` peer address family. |
+| Public rate-shaped capacity | The documented HTTP/UDP workload mix meets its objectives through TLS, Kestrel, JSON, LiteNetLib, kernel sockets, and public ingress. |
+| One-hour endurance | The immutable production-shaped candidate completes the one-hour profile without a state, handle, memory, readiness, or latency failure. |
+| Alert delivery | A real alert sink receives both trigger and recovery notifications for the rehearsed outage. |
+| Cold-standby rollback | Drain, stop, socket release, replacement start, host re-registration, and rollback meet the process and host-visible recovery objectives. |
+| Documentation-only exercise | An operator who did not author the runbooks completes key rotation/revocation, outage, restart, re-registration, and rollback using only the checked-in documentation. |
+
+Failure or missing evidence is blocking. It is never converted into an accepted
+risk by changing the wording of the readiness note.
+
+## Prepare one immutable canary build
+
+Use the exact release candidate on every canary machine. Verify a clean checkout,
+restore in locked mode, and build the TestClient before changing networks:
+
+```bash
+test -z "$(git status --porcelain)"
+dotnet restore Rendezvous.slnx --locked-mode
+dotnet build Rendezvous.slnx --configuration Release --no-restore
+```
+
+Keep shell tracing disabled. The host receives a short-lived, least-scope
+publisher credential through `RENDEZVOUS_PUBLISHER_CREDENTIAL`; it must never be
+put in an argument, coordination file, evidence file, command transcript, or
+support message. Set the public HTTPS service URL and advertised UDP mediator
+tuple separately. TestClient rejects credentials embedded in the service URL.
+
+## Run a success canary across two machines
+
+On the host machine, choose `same-lan`, `home-nat`, or `ipv6-direct`. The
+coordination file is mode `0600` and contains only the temporary listing UUID.
+It is not evidence; transfer it through an approved private channel, then delete
+both copies.
+
+```bash
+set +x
+export RENDEZVOUS_PUBLISHER_CREDENTIAL='supplied-by-the-approved-secret-boundary'
+export RENDEZVOUS_CANARY_ROLE=host
+export RENDEZVOUS_CANARY_TOPOLOGY=home-nat
+export RENDEZVOUS_CANARY_ADDRESS_FAMILY=ipv4
+export RENDEZVOUS_CANARY_HTTP_URL='https://service.example.invalid/'
+export RENDEZVOUS_CANARY_UDP_ENDPOINT='203.0.113.10:9050'
+export RENDEZVOUS_CANARY_COORDINATION_FILE="$HOME/.local/state/rendezvous-canary-listing"
+export RENDEZVOUS_CANARY_OUTPUT="$PWD/artifacts/canary/home-nat-host.json"
+./scripts/run-real-network-canary.sh
+```
+
+The host prints only that it is ready and waits for the authenticated exchange.
+On the joiner, read the securely transferred UUID without placing it in shell
+history and run the matching topology:
+
+```bash
+set +x
+read -r RENDEZVOUS_CANARY_LISTING_ID < "$HOME/.local/state/rendezvous-canary-listing"
+export RENDEZVOUS_CANARY_LISTING_ID
+export RENDEZVOUS_CANARY_ROLE=client-success
+export RENDEZVOUS_CANARY_TOPOLOGY=home-nat
+export RENDEZVOUS_CANARY_ADDRESS_FAMILY=ipv4
+export RENDEZVOUS_CANARY_HTTP_URL='https://service.example.invalid/'
+export RENDEZVOUS_CANARY_UDP_ENDPOINT='203.0.113.10:9050'
+export RENDEZVOUS_CANARY_OUTPUT="$PWD/artifacts/canary/home-nat-client.json"
+./scripts/run-real-network-canary.sh
+unset RENDEZVOUS_CANARY_LISTING_ID
+```
+
+The host summary requires authenticated direct traffic and deregistration. The
+client summary requires connection, authenticated direct traffic, accepted
+outcome reporting, and the declared address family observed on the actual peer.
+The summaries deliberately contain no network tuple or listing identifier.
+
+For IPv6, set the topology to `ipv6-direct`, the family to `ipv6`, and use the
+deployment's bracketed IPv6 mediator form. Record unsupported operating systems,
+console platforms, VPNs, and address families as untested; an IPv4 pass is not
+evidence for IPv6 or a platform network policy.
+
+## Run a bounded failure canary
+
+Start the host from an independently reachable network as above. On the joiner,
+apply the reviewed firewall rule that blocks the relevant UDP path, or use the
+known restrictive carrier network, then set `client-expected-failure` and the
+matching topology:
+
+```bash
+export RENDEZVOUS_CANARY_ROLE=client-expected-failure
+export RENDEZVOUS_CANARY_TOPOLOGY=firewall-blocked-udp
+export RENDEZVOUS_CANARY_ADDRESS_FAMILY=ipv4
+export RENDEZVOUS_CANARY_OUTPUT="$PWD/artifacts/canary/firewall-blocked-client.json"
+./scripts/run-real-network-canary.sh
+```
+
+This role passes only when TestClient exits exactly `12`, emits a non-empty typed
+authorization/traversal outcome, and emits the authoritative fallback category.
+A timeout without the typed terminal outcome, exit `0`, direct-traffic success,
+or an unbounded process is a failed canary. Restore the firewall after the drill
+and verify normal traffic again.
+
+## Private diagnostics and retention
+
+The harness creates raw JSON events under a randomly named `0700`-equivalent
+temporary directory with a process `umask` of `077`. Successful raw events are
+deleted automatically. On failure they remain in that private directory so the
+operator can triage locally; do not attach them to an issue before removing
+listing IDs and reviewing every field. Set `RENDEZVOUS_CANARY_KEEP_RAW=true`
+only for an approved short-lived diagnostic capture, then delete it manually.
+
+The sanitized summary contains the commit, clean/dirty tree state, UTC time,
+role, declared topology, observed address-family gate, aggregate booleans, and
+the retention policy. Formal evidence requires the default clean-tree check.
+
+## Public ingress proof
+
+Success through a public hostname is insufficient proof that UDP source/reply
+addressing is preserved. During a canary, an authorized operator must capture
+only packet headers at the service host and verify:
+
+1. each authenticated contribution reaches the mediator with the external peer
+   source tuple visible to the server;
+2. introductions are sent from the same advertised public mediator tuple;
+3. no load balancer, user-space proxy, service mesh, or destination NAT changes
+   the source or reply tuple expected by LiteNetLib; and
+4. malformed or unauthenticated traffic receives no amplified response.
+
+Store the approval, capture time window, candidate digest, topology category,
+and pass/fail result. Do not retain packet payloads or peer tuples in the
+repository. A failed tuple check blocks release even if one canary happened to
+connect.
+
+## Rehearsal and triage
+
+Run the security, capacity, observability, deployment, rollback, privacy, and
+incident procedures against the same immutable candidate. The independent
+operator records which runbook revision they followed, start/end time, observed
+alerts, recovery time, unexpected decisions, and pass/fail result. Update the
+documentation and repeat any failed or ambiguous step.
+
+Before changing the readiness record, reconcile every open roadmap issue as one
+of: `blocking` with an owner and evidence needed, `accepted-v1` with a bounded
+documented limitation, or `post-v1` with a filed issue. HA, active-active or
+multi-region routing, relays, platform authentication, and scale above the
+single-active v1 envelope are not silently accepted; each needs a traceable
+post-v1 issue. The current follow-ups are relay decision [#24], HA/multi-region
+shared state and routing [#28], scale beyond the measured envelope [#29], and
+platform authentication adapters [#30]. Run the checker after every evidence
+update. Only its `READY` result may support a production-ready claim.
+
+[#24]: https://git.finalfactory.de/HeiKyu/Rendezvous/issues/24
+[#28]: https://git.finalfactory.de/HeiKyu/Rendezvous/issues/28
+[#29]: https://git.finalfactory.de/HeiKyu/Rendezvous/issues/29
+[#30]: https://git.finalfactory.de/HeiKyu/Rendezvous/issues/30

eng/check_production_readiness.py

@@ -0,0 +1,147 @@
+#!/usr/bin/env python3
+"""Validate the redacted v1 readiness record and emit the release decision."""
+
+from __future__ import annotations
+
+import json
+import pathlib
+import re
+import sys
+from typing import Any
+
+
+LOCAL_GATES = {
+    "immutable-release-artifacts",
+    "debug-and-release-verification",
+    "real-consumer-pilots",
+    "candidate-capacity-resilience",
+    "production-process-recovery",
+    "security-privacy-observability",
+}
+EXTERNAL_GATES = {
+    "public-package-empty-cache-restore",
+    "signed-publication",
+    "source-preserving-udp-ingress",
+    "same-lan-direct-canary",
+    "home-nat-direct-canary",
+    "restrictive-cgnat-typed-failure",
+    "firewall-blocked-udp-typed-failure",
+    "ipv6-direct-canary",
+    "public-rate-shaped-capacity",
+    "one-hour-candidate-endurance",
+    "alert-delivery",
+    "cold-standby-rollback-drill",
+    "documentation-only-runbook-exercise",
+}
+STATUSES = {"pass", "pending", "fail"}
+FORBIDDEN_KEY_PARTS = {
+    "address",
+    "credential",
+    "endpoint",
+    "listingid",
+    "password",
+    "playerid",
+    "secret",
+    "token",
+    "userid",
+}
+UUID = re.compile(r"\b[0-9a-fA-F]{8}-[0-9a-fA-F-]{27,}\b")
+IPV4 = re.compile(r"(?<![0-9])(?:[0-9]{1,3}\.){3}[0-9]{1,3}(?![0-9])")
+COMMIT = re.compile(r"[0-9a-f]{40}")
+
+
+class InvalidRecord(ValueError):
+    pass
+
+
+def reject_sensitive(value: Any, path: str = "$") -> None:
+    if isinstance(value, dict):
+        for key, child in value.items():
+            normalized = re.sub(r"[^a-z0-9]", "", key.lower())
+            if any(part in normalized for part in FORBIDDEN_KEY_PARTS):
+                raise InvalidRecord(f"{path}.{key} uses a forbidden sensitive-data key")
+            reject_sensitive(child, f"{path}.{key}")
+    elif isinstance(value, list):
+        for index, child in enumerate(value):
+            reject_sensitive(child, f"{path}[{index}]")
+    elif isinstance(value, str):
+        if UUID.search(value) or IPV4.search(value) or "://" in value or "@" in value:
+            raise InvalidRecord(f"{path} contains endpoint, identifier, or account-shaped data")
+
+
+def validate_gate_set(items: Any, expected: set[str], path: str) -> list[dict[str, str]]:
+    if not isinstance(items, list):
+        raise InvalidRecord(f"{path} must be an array")
+    gates: list[dict[str, str]] = []
+    for index, item in enumerate(items):
+        if not isinstance(item, dict) or set(item) != {"id", "status", "evidenceRef", "note"}:
+            raise InvalidRecord(f"{path}[{index}] has an invalid shape")
+        if not all(isinstance(item[key], str) for key in item):
+            raise InvalidRecord(f"{path}[{index}] fields must be strings")
+        if item["status"] not in STATUSES:
+            raise InvalidRecord(f"{path}[{index}] has an invalid status")
+        evidence = pathlib.PurePosixPath(item["evidenceRef"])
+        if evidence.is_absolute() or ".." in evidence.parts or not item["evidenceRef"]:
+            raise InvalidRecord(f"{path}[{index}].evidenceRef must be a repository-relative reference")
+        if len(item["note"]) > 240:
+            raise InvalidRecord(f"{path}[{index}].note is too long")
+        gates.append(item)
+    identifiers = [gate["id"] for gate in gates]
+    if len(identifiers) != len(set(identifiers)):
+        raise InvalidRecord(f"{path} contains duplicate gate identifiers")
+    if set(identifiers) != expected:
+        missing = sorted(expected - set(identifiers))
+        extra = sorted(set(identifiers) - expected)
+        raise InvalidRecord(f"{path} gate mismatch; missing={missing}, extra={extra}")
+    return gates
+
+
+def validate(record: Any) -> tuple[bool, list[str]]:
+    if not isinstance(record, dict) or set(record) != {
+        "schemaVersion",
+        "kind",
+        "evaluatedCommit",
+        "decision",
+        "localGates",
+        "externalGates",
+    }:
+        raise InvalidRecord("The top-level readiness record shape is invalid")
+    if record["schemaVersion"] != 1 or record["kind"] != "rendezvous-production-readiness":
+        raise InvalidRecord("The readiness schema identity is invalid")
+    if not isinstance(record["evaluatedCommit"], str) or not COMMIT.fullmatch(record["evaluatedCommit"]):
+        raise InvalidRecord("evaluatedCommit must be a full lowercase Git commit")
+    reject_sensitive(record)
+    gates = validate_gate_set(record["localGates"], LOCAL_GATES, "$.localGates")
+    gates += validate_gate_set(record["externalGates"], EXTERNAL_GATES, "$.externalGates")
+    blockers = sorted(gate["id"] for gate in gates if gate["status"] != "pass")
+    ready = not blockers
+    expected_decision = "ready" if ready else "not-ready"
+    if record["decision"] != expected_decision:
+        raise InvalidRecord(
+            f"decision must be {expected_decision!r} for the recorded gate statuses"
+        )
+    return ready, blockers
+
+
+def main() -> int:
+    if len(sys.argv) != 2:
+        print("usage: check_production_readiness.py RECORD", file=sys.stderr)
+        return 2
+    try:
+        with open(sys.argv[1], "r", encoding="utf-8") as source:
+            record = json.load(source)
+        ready, blockers = validate(record)
+    except (OSError, json.JSONDecodeError, InvalidRecord) as error:
+        print(f"INVALID: {error}", file=sys.stderr)
+        return 2
+    if not ready:
+        print(f"NOT READY: {len(blockers)} required gate(s) are not passing.")
+        for blocker in blockers:
+            print(f"- {blocker}")
+        return 3
+    print("READY: every required v1 production gate is recorded as passing.")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

eng/consumer-revisions.json

@@ -4,13 +4,13 @@
     {
       "name": "SpaceGame",
       "repository": "https://git.finalfactory.de/Kyuubi/SpaceGame.git",
-      "revision": "77519b0cc418a27f8d408ae2d7b8812fbe087c04",
+      "revision": "f3f5bc29810c362656cd7143bec1ddc2cfaf9f22",
       "project": "SpaceGame.csproj"
     },
     {
       "name": "Unscouted",
       "repository": "https://git.finalfactory.de/HeiKyu/Unscouted.git",
-      "revision": "7807dbee86eb8b98e702f1eb89c88adff728f635",
+      "revision": "f0574a7de82aadff6495ca5657dfc19cf7c2f67c",
       "project": "Net.Core/Net.Core.csproj"
     }
   ]

scripts/check-production-readiness.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+RECORD="${1:-$ROOT/docs/evidence/production-readiness-v1.json}"
+
+exec python3 "$ROOT/eng/check_production_readiness.py" "$RECORD"

scripts/run-real-network-canary.sh

@@ -0,0 +1,234 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+PROJECT="$ROOT/src/FinalFactory.Rendezvous.TestClient/FinalFactory.Rendezvous.TestClient.csproj"
+ROLE="${RENDEZVOUS_CANARY_ROLE:-}"
+TOPOLOGY="${RENDEZVOUS_CANARY_TOPOLOGY:-}"
+ADDRESS_FAMILY="${RENDEZVOUS_CANARY_ADDRESS_FAMILY:-ipv4}"
+SERVICE_URL="${RENDEZVOUS_CANARY_HTTP_URL:-}"
+MEDIATOR="${RENDEZVOUS_CANARY_UDP_ENDPOINT:-}"
+GAME_ID="${RENDEZVOUS_CANARY_GAME_ID:-space-game}"
+ENVIRONMENT_ID="${RENDEZVOUS_CANARY_ENVIRONMENT_ID:-production-canary}"
+REGION="${RENDEZVOUS_CANARY_REGION:-production-canary}"
+PROTOCOL_VERSION="${RENDEZVOUS_CANARY_PROTOCOL_VERSION:-1}"
+TIMEOUT_SECONDS="${RENDEZVOUS_CANARY_TIMEOUT_SECONDS:-60}"
+RUN_SECONDS="${RENDEZVOUS_CANARY_RUN_SECONDS:-900}"
+OUTPUT="${RENDEZVOUS_CANARY_OUTPUT:-$ROOT/artifacts/canary/${ROLE:-unknown}-${TOPOLOGY:-unknown}.json}"
+COORDINATION_FILE="${RENDEZVOUS_CANARY_COORDINATION_FILE:-}"
+LISTING_ID="${RENDEZVOUS_CANARY_LISTING_ID:-}"
+REQUIRE_CLEAN="${RENDEZVOUS_CANARY_REQUIRE_CLEAN:-true}"
+KEEP_RAW="${RENDEZVOUS_CANARY_KEEP_RAW:-false}"
+
+usage() {
+    printf '%s\n' \
+        'Set RENDEZVOUS_CANARY_ROLE to host, client-success, or client-expected-failure.' \
+        'Also set RENDEZVOUS_CANARY_TOPOLOGY, RENDEZVOUS_CANARY_HTTP_URL, and' \
+        'RENDEZVOUS_CANARY_UDP_ENDPOINT. See docs/operations/production-readiness.md.' >&2
+    exit 2
+}
+
+for command in date dotnet git jq mktemp; do
+    command -v "$command" >/dev/null || {
+        printf 'Missing required command: %s\n' "$command" >&2
+        exit 2
+    }
+done
+
+case "$ROLE" in
+    host|client-success|client-expected-failure) ;;
+    *) usage ;;
+esac
+case "$TOPOLOGY" in
+    same-lan|home-nat|firewall-blocked-udp|restrictive-cgnat|ipv6-direct) ;;
+    *) usage ;;
+esac
+case "$ADDRESS_FAMILY" in
+    ipv4|ipv6) ;;
+    *) printf 'RENDEZVOUS_CANARY_ADDRESS_FAMILY must be ipv4 or ipv6.\n' >&2; exit 2 ;;
+esac
+if [[ "$TOPOLOGY" == ipv6-direct && "$ADDRESS_FAMILY" != ipv6 ]]; then
+    printf 'The ipv6-direct topology requires RENDEZVOUS_CANARY_ADDRESS_FAMILY=ipv6.\n' >&2
+    exit 2
+fi
+if [[ "$TOPOLOGY" =~ ^(firewall-blocked-udp|restrictive-cgnat)$ \
+    && "$ROLE" == client-success ]]; then
+    printf 'Failure topologies must use the client-expected-failure role.\n' >&2
+    exit 2
+fi
+if [[ -z "$SERVICE_URL" || -z "$MEDIATOR" ]]; then
+    usage
+fi
+if [[ ! "$TIMEOUT_SECONDS" =~ ^[0-9]+$ ]] \
+    || (( TIMEOUT_SECONDS < 1 || TIMEOUT_SECONDS > 300 )); then
+    printf 'RENDEZVOUS_CANARY_TIMEOUT_SECONDS must be an integer from 1 through 300.\n' >&2
+    exit 2
+fi
+if [[ ! "$RUN_SECONDS" =~ ^[0-9]+$ ]] \
+    || (( RUN_SECONDS < 60 || RUN_SECONDS > 3600 )); then
+    printf 'RENDEZVOUS_CANARY_RUN_SECONDS must be an integer from 60 through 3600.\n' >&2
+    exit 2
+fi
+if [[ ! "$PROTOCOL_VERSION" =~ ^[0-9]+$ ]] || (( PROTOCOL_VERSION < 1 )); then
+    printf 'RENDEZVOUS_CANARY_PROTOCOL_VERSION must be a positive integer.\n' >&2
+    exit 2
+fi
+if [[ "$REQUIRE_CLEAN" != true && "$REQUIRE_CLEAN" != false ]]; then
+    printf 'RENDEZVOUS_CANARY_REQUIRE_CLEAN must be true or false.\n' >&2
+    exit 2
+fi
+if [[ "$KEEP_RAW" != true && "$KEEP_RAW" != false ]]; then
+    printf 'RENDEZVOUS_CANARY_KEEP_RAW must be true or false.\n' >&2
+    exit 2
+fi
+
+cd "$ROOT"
+commit="$(git rev-parse HEAD)"
+tree_state=clean
+if [[ -n "$(git status --porcelain)" ]]; then
+    tree_state=dirty
+fi
+if [[ "$REQUIRE_CLEAN" == true && "$tree_state" != clean ]]; then
+    printf 'Formal canary evidence requires a clean source tree.\n' >&2
+    exit 2
+fi
+
+if [[ "$ROLE" == host ]]; then
+    if [[ -z "$COORDINATION_FILE" ]]; then
+        printf 'The host role requires RENDEZVOUS_CANARY_COORDINATION_FILE.\n' >&2
+        exit 2
+    fi
+    if [[ -z "${RENDEZVOUS_PUBLISHER_CREDENTIAL:-}" ]]; then
+        printf 'The host role requires RENDEZVOUS_PUBLISHER_CREDENTIAL.\n' >&2
+        exit 2
+    fi
+else
+    if [[ ! "$LISTING_ID" =~ ^[0-9a-fA-F-]{36}$ ]]; then
+        printf 'A client role requires a UUID in RENDEZVOUS_CANARY_LISTING_ID.\n' >&2
+        exit 2
+    fi
+fi
+
+umask 077
+raw_dir="$(mktemp -d "${TMPDIR:-/tmp}/rendezvous-canary.XXXXXXXX")"
+raw_log="$raw_dir/events.jsonl"
+run_succeeded=false
+host_pid=''
+cleanup() {
+    local status="$?"
+    if [[ -n "$host_pid" ]] && kill -0 "$host_pid" 2>/dev/null; then
+        kill -TERM "$host_pid" 2>/dev/null || true
+        wait "$host_pid" 2>/dev/null || true
+    fi
+    if [[ "$run_succeeded" == true && "$KEEP_RAW" == false ]]; then
+        rm -rf "$raw_dir"
+    else
+        printf 'Private raw canary events retained at %s\n' "$raw_dir" >&2
+    fi
+    return "$status"
+}
+trap cleanup EXIT
+trap 'exit 130' INT
+trap 'exit 143' TERM
+
+common_arguments=(
+    --service "$SERVICE_URL"
+    --mediator "$MEDIATOR"
+    --game "$GAME_ID"
+    --environment "$ENVIRONMENT_ID"
+    --region "$REGION"
+    --protocol "$PROTOCOL_VERSION"
+    --script
+    --json
+    --timeout-seconds "$TIMEOUT_SECONDS"
+)
+
+exit_code=0
+if [[ "$ROLE" == host ]]; then
+    dotnet run --project "$PROJECT" --configuration Release --no-build -- \
+        host "${common_arguments[@]}" --exit-after-echo --run-seconds "$RUN_SECONDS" \
+        >"$raw_log" 2>&1 &
+    host_pid="$!"
+    ready=false
+    for ((iteration = 0; iteration < TIMEOUT_SECONDS * 4; iteration++)); do
+        if jq -e 'select(.event == "host.ready" and .status == "ready")' "$raw_log" \
+            >/dev/null 2>&1; then
+            ready=true
+            break
+        fi
+        if ! kill -0 "$host_pid" 2>/dev/null; then
+            break
+        fi
+        sleep 0.25
+    done
+    if [[ "$ready" != true ]]; then
+        printf 'The canary host did not become ready within the bounded startup window.\n' >&2
+        kill -TERM "$host_pid" 2>/dev/null || true
+        wait "$host_pid" 2>/dev/null || true
+        exit 1
+    fi
+    observed_listing="$(jq -r 'select(.event == "host.registered") | .listingId' "$raw_log" | tail -n 1)"
+    if [[ ! "$observed_listing" =~ ^[0-9a-f-]{36}$ ]]; then
+        printf 'The canary host did not produce a valid coordination identifier.\n' >&2
+        kill -TERM "$host_pid" 2>/dev/null || true
+        wait "$host_pid" 2>/dev/null || true
+        exit 1
+    fi
+    coordination_parent="$(dirname "$COORDINATION_FILE")"
+    mkdir -p "$coordination_parent"
+    coordination_temp="$COORDINATION_FILE.tmp.$$"
+    printf '%s\n' "$observed_listing" >"$coordination_temp"
+    chmod 600 "$coordination_temp"
+    mv "$coordination_temp" "$COORDINATION_FILE"
+    printf 'Host ready; securely transfer the private coordination file to the client operator.\n'
+    set +e
+    wait "$host_pid"
+    exit_code="$?"
+    set -e
+elif [[ "$ROLE" == client-success ]]; then
+    set +e
+    dotnet run --project "$PROJECT" --configuration Release --no-build -- \
+        join "${common_arguments[@]}" --listing "$LISTING_ID" >"$raw_log" 2>&1
+    exit_code="$?"
+    set -e
+else
+    set +e
+    dotnet run --project "$PROJECT" --configuration Release --no-build -- \
+        join "${common_arguments[@]}" --listing "$LISTING_ID" >"$raw_log" 2>&1
+    exit_code="$?"
+    set -e
+fi
+
+checks='{}'
+if [[ "$ROLE" == host ]]; then
+    [[ "$exit_code" -eq 0 ]]
+    jq -e --arg family "$ADDRESS_FAMILY" 'select(.event == "host.direct-traffic" and .status == "verified" and .addressFamily == $family)' "$raw_log" >/dev/null
+    jq -e 'select(.event == "host.deregistered" and .status == "complete")' "$raw_log" >/dev/null
+    checks='{"authenticatedDirectTraffic":true,"deregistered":true}'
+elif [[ "$ROLE" == client-success ]]; then
+    [[ "$exit_code" -eq 0 ]]
+    jq -e --arg family "$ADDRESS_FAMILY" 'select(.event == "join.connected" and .status == "connected" and .addressFamily == $family)' "$raw_log" >/dev/null
+    jq -e --arg family "$ADDRESS_FAMILY" 'select(.event == "join.direct-traffic" and .status == "verified" and .addressFamily == $family)' "$raw_log" >/dev/null
+    jq -e 'select(.event == "join.outcome-report" and .status == "accepted")' "$raw_log" >/dev/null
+    checks='{"authenticatedDirectTraffic":true,"typedOutcomeReported":true}'
+else
+    [[ "$exit_code" -eq 12 ]]
+    jq -e 'select((.event == "join.traversal" or .event == "join.authorization") and .status == "failed" and (.outcome | type == "string") and (.outcome | length > 0))' "$raw_log" >/dev/null
+    jq -e 'select(.event == "join.fallback" and (.status == "available" or .status == "unavailable") and (.outcome | type == "string") and (.outcome | length > 0))' "$raw_log" >/dev/null
+    checks='{"boundedTypedFailure":true,"fallbackPolicyReported":true}'
+fi
+
+mkdir -p "$(dirname "$OUTPUT")"
+jq -n \
+    --arg commit "$commit" \
+    --arg treeState "$tree_state" \
+    --arg timestampUtc "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+    --arg role "$ROLE" \
+    --arg topology "$TOPOLOGY" \
+    --arg addressFamily "$ADDRESS_FAMILY" \
+    --argjson checks "$checks" \
+    '{schemaVersion:1,kind:"rendezvous-real-network-canary",commit:$commit,treeState:$treeState,timestampUtc:$timestampUtc,role:$role,topology:$topology,addressFamily:$addressFamily,result:"pass",checks:$checks,dataRetention:{rawEvents:"deleted-after-success",identifiers:"not-in-summary",networkEndpoints:"not-in-summary"}}' \
+    >"$OUTPUT"
+
+run_succeeded=true
+printf 'Real-network canary passed; sanitized evidence: %s\n' "$OUTPUT"

scripts/verify-real-consumers.sh

@@ -47,6 +47,8 @@ for ((index = 0; index < count; index++)); do
   cat >"$targets" <<EOF
 <Project>
   <ItemGroup Condition="'\$(MSBuildProjectFullPath)' == '$project'">
+    <PackageReference Remove="FinalFactory.Rendezvous.Client" />
+    <PackageReference Remove="FinalFactory.Rendezvous.Contracts" />
     <PackageReference Include="FinalFactory.Rendezvous.Client" Version="[$version]" />
     <PackageReference Include="FinalFactory.Rendezvous.Contracts" Version="[$version]" />
   </ItemGroup>

src/FinalFactory.Rendezvous.TestClient/RendezvousCommandRunner.cs

@@ -114,11 +114,12 @@ internal sealed class RendezvousCommandRunner : ITestClientCommandRunner
                 listingId: session.ListingId.ToString(),
                 displayName: options.DisplayName);
             echo = new DirectEchoProtocol(events.GameplayEvents, host: true);
-            echo.ExchangeCompleted += _ => output.Write(
+            echo.ExchangeCompleted += peer => output.Write(
                 "host.direct-traffic",
                 "verified",
                 phase: "direct-traffic",
-                endpointType: "peer-to-peer");
+                endpointType: "peer-to-peer",
+                addressFamily: AddressFamilyName(peer.Address));
             coordinator = new RendezvousHostCoordinator(
                 manager,
                 events,
@@ -485,6 +486,7 @@ internal sealed class RendezvousCommandRunner : ITestClientCommandRunner
                 "connected",
                 phase: "direct-connection",
                 endpointType: endpointType,
+                addressFamily: AddressFamilyName(peer.Address),
                 elapsedMilliseconds: ToMilliseconds(outcome.Elapsed));
             await ReportOutcomeAsync(coordinator, joins, output, cancellationToken).ConfigureAwait(false);
             echo.BeginJoin(peer);
@@ -507,7 +509,8 @@ internal sealed class RendezvousCommandRunner : ITestClientCommandRunner
                 "join.direct-traffic",
                 "verified",
                 phase: "direct-traffic",
-                endpointType: endpointType);
+                endpointType: endpointType,
+                addressFamily: AddressFamilyName(peer.Address));
             peer.Disconnect();
             manager.PollEvents();
             return TestClientExitCode.Success;
@@ -765,6 +768,9 @@ internal sealed class RendezvousCommandRunner : ITestClientCommandRunner
         return privateAddress ? "private" : "public";
     }
 
+    private static string AddressFamilyName(IPAddress address) =>
+        address.AddressFamily == AddressFamily.InterNetworkV6 ? "ipv6" : "ipv4";
+
     private static long ToMilliseconds(TimeSpan elapsed) =>
         (long)Math.Min(long.MaxValue, Math.Max(0, elapsed.TotalMilliseconds));
 

src/FinalFactory.Rendezvous.TestClient/TestClientOutput.cs

@@ -24,6 +24,7 @@ internal sealed class TestClientOutput(TextWriter standardOutput, TextWriter sta
         string? displayName = null,
         string? outcome = null,
         string? endpointType = null,
+        string? addressFamily = null,
         int? count = null,
         long? elapsedMilliseconds = null,
         string? message = null) => WriteCore(
@@ -37,6 +38,7 @@ internal sealed class TestClientOutput(TextWriter standardOutput, TextWriter sta
                 DisplayName = SafeText(displayName),
                 Outcome = SafeToken(outcome),
                 EndpointType = SafeToken(endpointType),
+                AddressFamily = SafeToken(addressFamily),
                 Count = count,
                 ElapsedMilliseconds = elapsedMilliseconds,
                 Message = SafeText(message),
@@ -92,6 +94,7 @@ internal sealed class TestClientOutput(TextWriter standardOutput, TextWriter sta
         Append(line, "name", item.DisplayName, quote: true);
         Append(line, "outcome", item.Outcome);
         Append(line, "endpoint", item.EndpointType);
+        Append(line, "addressFamily", item.AddressFamily);
         if (item.Count.HasValue)
         {
             Append(line, "count", item.Count.Value.ToString(System.Globalization.CultureInfo.InvariantCulture));
@@ -174,6 +177,7 @@ internal sealed class TestClientOutput(TextWriter standardOutput, TextWriter sta
         public string? DisplayName { get; init; }
         public string? Outcome { get; init; }
         public string? EndpointType { get; init; }
+        public string? AddressFamily { get; init; }
         public int? Count { get; init; }
         public long? ElapsedMilliseconds { get; init; }
         public string? Message { get; init; }

tests/FinalFactory.Rendezvous.Tests/Release/ReleaseCompatibilityTests.cs

@@ -143,6 +143,10 @@ public sealed class ReleaseCompatibilityTests
             pinnedConsumers.Select(static item => item.GetProperty("name").GetString()!).ToArray());
         Assert.All(pinnedConsumers, static item =>
             Assert.Matches("^[0-9a-f]{40}$", item.GetProperty("revision").GetString()));
+
+        string realConsumerGate = File.ReadAllText(Path.Combine(root, "scripts", "verify-real-consumers.sh"));
+        Assert.Contains("<PackageReference Remove=\"FinalFactory.Rendezvous.Client\" />", realConsumerGate, StringComparison.Ordinal);
+        Assert.Contains("<PackageReference Remove=\"FinalFactory.Rendezvous.Contracts\" />", realConsumerGate, StringComparison.Ordinal);
     }
 
     [Fact]
@@ -164,6 +168,49 @@ public sealed class ReleaseCompatibilityTests
         Assert.Equal(actual, declared);
     }
 
+    [Fact]
+    public void ProductionReadinessRecordIsFailClosedAndCanaryEvidenceIsRedacted()
+    {
+        string root = FindRepositoryRoot();
+        using JsonDocument readiness = JsonDocument.Parse(File.ReadAllText(Path.Combine(
+            root,
+            "docs/evidence/production-readiness-v1.json")));
+        JsonElement document = readiness.RootElement;
+        Assert.Equal(1, document.GetProperty("schemaVersion").GetInt32());
+        Assert.Equal("rendezvous-production-readiness", document.GetProperty("kind").GetString());
+        Assert.Matches("^[0-9a-f]{40}$", document.GetProperty("evaluatedCommit").GetString());
+
+        JsonElement[] local = document.GetProperty("localGates").EnumerateArray().ToArray();
+        JsonElement[] external = document.GetProperty("externalGates").EnumerateArray().ToArray();
+        Assert.Equal(6, local.Length);
+        Assert.Equal(13, external.Length);
+        JsonElement[] gates = local.Concat(external).ToArray();
+        Assert.Equal(gates.Length, gates.Select(static gate => gate.GetProperty("id").GetString()).Distinct().Count());
+        Assert.All(gates, static gate =>
+        {
+            Assert.True(gate.GetProperty("status").GetString() is "pass" or "pending" or "fail");
+            string evidence = Assert.IsType<string>(gate.GetProperty("evidenceRef").GetString());
+            Assert.False(Path.IsPathRooted(evidence));
+            Assert.DoesNotContain("..", evidence, StringComparison.Ordinal);
+            Assert.True(gate.GetProperty("note").GetString()!.Length <= 240);
+        });
+        bool allPass = gates.All(static gate => gate.GetProperty("status").GetString() == "pass");
+        Assert.Equal(allPass ? "ready" : "not-ready", document.GetProperty("decision").GetString());
+
+        string canary = File.ReadAllText(Path.Combine(root, "scripts/run-real-network-canary.sh"));
+        Assert.Contains("umask 077", canary, StringComparison.Ordinal);
+        Assert.Contains("client-expected-failure", canary, StringComparison.Ordinal);
+        Assert.Contains("exit_code\" -eq 12", canary, StringComparison.Ordinal);
+        Assert.Contains(".addressFamily == $family", canary, StringComparison.Ordinal);
+        Assert.Contains("identifiers:\"not-in-summary\"", canary, StringComparison.Ordinal);
+        Assert.DoesNotContain("jq -c . \"$raw_log\"", canary, StringComparison.Ordinal);
+
+        string checker = File.ReadAllText(Path.Combine(root, "eng/check_production_readiness.py"));
+        Assert.Contains("return 3", checker, StringComparison.Ordinal);
+        Assert.Contains("FORBIDDEN_KEY_PARTS", checker, StringComparison.Ordinal);
+        Assert.Contains("decision must be", checker, StringComparison.Ordinal);
+    }
+
     private static string Property(XDocument document, string name) =>
         document.Descendants(name).Single().Value;
 

tests/FinalFactory.Rendezvous.Tests/TestClient/TestClientProcessIntegrationTests.cs

@@ -178,12 +178,17 @@ public sealed class TestClientProcessIntegrationTests
         Assert.Contains(
             join.JsonEvents(),
             item => item.GetProperty("event").GetString() == "join.connected"
-                && item.GetProperty("endpointType").GetString() is "loopback" or "private");
+                && item.GetProperty("endpointType").GetString() is "loopback" or "private"
+                && item.GetProperty("addressFamily").GetString() == "ipv4");
         Assert.True(join.HasEvent("join.punch", "started"), join.DiagnosticText());
         Assert.True(join.HasEvent("join.direct-connect", "started"), join.DiagnosticText());
         Assert.True(join.HasEvent("join.direct-traffic", "verified"), join.DiagnosticText());
         Assert.True(join.HasEvent("join.outcome-report", "accepted"), join.DiagnosticText());
         Assert.True(host.HasEvent("host.direct-traffic", "verified"), host.DiagnosticText());
+        Assert.Contains(
+            host.JsonEvents(),
+            item => item.GetProperty("event").GetString() == "host.direct-traffic"
+                && item.GetProperty("addressFamily").GetString() == "ipv4");
         Assert.True(host.HasEvent("host.punch", "started"), host.DiagnosticText());
         Assert.True(host.HasEvent("host.direct-connect", "connected"), host.DiagnosticText());
         Assert.True(host.HasEvent("host.deregistered", "complete"), host.DiagnosticText());