feat(secrets): encrypt egress tokens at rest with per-bottle ENV_VAR_SECRET

Implements the interim secret-provider design (PRD prd-new-secret-provider):
each agent receives a random ENV_VAR_SECRET injected into its container env
at launch. The host uses this key to encrypt each egress auth token value
(HMAC-SHA256 CTR mode, stdlib-only) and store it in a new
bottled_agent_secrets table (one row per env var, key column plaintext for
auditing). The key never touches the DB.

On infra container restart the in-memory token map is lost. launch_consolidated
now calls _reprovision_running_bottles after ensure_running: for each
registered bottle still alive on the gateway network it execs
`printenv ENV_VAR_SECRET` into the agent container and posts the result to the
new POST /bottles/<id>/reprovision_gateway control-plane endpoint, which
decrypts the stored rows and restores _tokens — no manual intervention needed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

bot_bottle/backend/consolidated_util.py

@@ -7,10 +7,13 @@ imports it rather than re-implementing it.
 
 from __future__ import annotations
 
+import dataclasses
+
 from ..egress import EgressPlan
 from ..git_gate import GitGatePlan
-from ..orchestrator.client import OrchestratorClient
+from ..orchestrator.client import OrchestratorClient, RegisteredBottle
 from ..orchestrator.registration import registration_inputs
+from ..orchestrator.secret_store import new_env_var_secret
 from .docker.gateway_provision import GatewayTransport, deprovision_git_gate, provision_git_gate
 
 
@@ -23,21 +26,26 @@ def provision_bottle(
     *,
     image_ref: str = "",
     tokens: dict[str, str] | None = None,
-):
+) -> RegisteredBottle:
     """Register the bottle and provision its git-gate state. Rolls back the
-    registration if provisioning fails so no orphan is left. Returns the
-    `RegisteredBottle` from the orchestrator."""
+    registration if provisioning fails so no orphan is left.
+
+    Generates a fresh ENV_VAR_SECRET, passes it to the orchestrator so it can
+    encrypt the token values at rest, and stamps the secret onto the returned
+    ``RegisteredBottle`` so callers can inject it into the agent container's
+    environment."""
     inputs = registration_inputs(egress_plan)
+    env_var_secret = new_env_var_secret()
     reg = client.register_bottle(
         source_ip, image_ref=image_ref, policy=inputs.policy,
-        metadata=inputs.metadata, tokens=tokens,
+        metadata=inputs.metadata, tokens=tokens, env_var_secret=env_var_secret,
     )
     try:
         provision_git_gate(transport, reg.bottle_id, git_gate_plan)
     except Exception:
         client.teardown_bottle(reg.bottle_id)
         raise
-    return reg
+    return dataclasses.replace(reg, env_var_secret=env_var_secret)
 
 
 def teardown_consolidated(

bot_bottle/backend/docker/bottle_plan.py

@@ -39,6 +39,10 @@ class DockerBottlePlan(BottlePlan):
     # (egress proxy credentials, git-gate/supervise headers); set by launch
     # from the orchestrator registration. Empty pre-registration.
     identity_token: str = ""
+    # Encryption key for the agent's stored egress secrets; injected into the
+    # agent container as ENV_VAR_SECRET via the compose subprocess env (bare
+    # name — value never written to the compose file). Empty pre-registration.
+    env_var_secret: str = ""
 
     @property
     def container_name(self) -> str:

bot_bottle/backend/docker/consolidated_compose.py

@@ -17,6 +17,7 @@ from __future__ import annotations
 from typing import Any
 
 from ...egress import egress_agent_env_entries
+from ...orchestrator.secret_store import ENV_VAR_SECRET_NAME
 from ..util import AGENT_CA_BUNDLE, AGENT_CA_PATH
 from .bottle_plan import DockerBottlePlan
 from .egress import EGRESS_PORT
@@ -58,6 +59,10 @@ def consolidated_agent_compose(
     # the secret value never lands on argv or in the compose file.
     for name in sorted(plan.forwarded_env.keys()):
         env.append(name)
+    # ENV_VAR_SECRET: bare name so the value comes from the compose subprocess
+    # env (set in launch.py) and is never written to the compose file on disk.
+    if getattr(plan, "env_var_secret", ""):
+        env.append(ENV_VAR_SECRET_NAME)
     env.extend(egress_agent_env_entries(plan.egress_plan))
 
     service: dict[str, Any] = {

bot_bottle/backend/docker/consolidated_launch.py

@@ -15,12 +15,14 @@ from __future__ import annotations
 
 from dataclasses import dataclass
 
+from ... import log
 from ...docker_cmd import run_docker
 from ...egress import EgressPlan
 from ...git_gate import GitGatePlan
 from ...orchestrator.client import OrchestratorClient
 from ...orchestrator.gateway import GATEWAY_NETWORK
 from ...orchestrator.lifecycle import INFRA_NAME, OrchestratorService
+from ...orchestrator.secret_store import ENV_VAR_SECRET_NAME
 from ..consolidated_util import provision_bottle
 from ..consolidated_util import teardown_consolidated as _teardown_util
 from .gateway_provision import DockerGatewayTransport
@@ -41,6 +43,7 @@ class LaunchContext:
     network: str            # the shared gateway network to attach to
     gateway_ip: str         # the gateway's address — the agent's proxy target
     orchestrator_url: str
+    env_var_secret: str = ""  # encryption key injected into the agent's env
 
 
 def _network_cidr(network: str) -> str:
@@ -85,6 +88,66 @@ def _network_container_ips(network: str) -> list[str]:
     return ips
 
 
+def _reprovision_running_bottles(
+    orchestrator_url: str,
+    network: str = GATEWAY_NETWORK,
+    infra_name: str = INFRA_NAME,
+) -> None:
+    """Re-inject egress tokens for any registered bottles that lost their
+    in-memory tokens (e.g., after an infra container restart).
+
+    For each registered bottle whose source IP maps to a live container on the
+    gateway network, reads ENV_VAR_SECRET via ``docker exec … printenv`` and
+    calls ``POST /bottles/<id>/reprovision_gateway``. Idempotent — a no-op
+    when the orchestrator already has all tokens loaded. Best-effort: a single
+    container exec failure never blocks a new bottle launch."""
+    client = OrchestratorClient(orchestrator_url)
+    bottles = client.list_bottles()
+    if not bottles:
+        return
+
+    # Build {source_ip: container_name} from live containers on the gateway
+    # network, excluding the infra container itself.
+    proc = run_docker([
+        "docker", "network", "inspect",
+        "--format", "{{range .Containers}}{{.Name}} {{.IPv4Address}}\n{{end}}",
+        network,
+    ])
+    ip_to_container: dict[str, str] = {}
+    for line in proc.stdout.splitlines():
+        parts = line.strip().split()
+        if len(parts) >= 2 and parts[0] != infra_name:
+            ip = parts[1].split("/", 1)[0]
+            if ip:
+                ip_to_container[ip] = parts[0]
+
+    reprovisioned = 0
+    for bottle in bottles:
+        bottle_id = bottle.get("bottle_id")
+        source_ip = bottle.get("source_ip")
+        if not isinstance(bottle_id, str) or not isinstance(source_ip, str):
+            continue
+        container_name = ip_to_container.get(source_ip)
+        if not container_name:
+            continue
+        proc = run_docker(
+            ["docker", "exec", container_name, "printenv", ENV_VAR_SECRET_NAME]
+        )
+        if proc.returncode != 0 or not proc.stdout.strip():
+            continue
+        try:
+            if client.reprovision_gateway(bottle_id, proc.stdout.strip()):
+                reprovisioned += 1
+        except Exception:  # noqa: BLE001 — best-effort, never block a launch
+            pass
+
+    if reprovisioned:
+        log.info(
+            "reprovisioned egress tokens",
+            context={"count": reprovisioned},
+        )
+
+
 def launch_consolidated(
     egress_plan: EgressPlan,
     git_gate_plan: GitGatePlan,
@@ -96,9 +159,14 @@ def launch_consolidated(
     network: str = GATEWAY_NETWORK,
 ) -> LaunchContext:
     """Ensure the infra container is up, allocate + register the bottle, and
-    provision its git-gate state. Returns the agent's attach context."""
+    provision its git-gate state. Returns the agent's attach context.
+
+    Also reprovisiones egress tokens for any already-running bottles that lost
+    their in-memory credentials (e.g. after an infra container restart), so
+    they regain egress access before the new bottle is registered."""
     service = service or OrchestratorService()
     url = service.ensure_running()
+    _reprovision_running_bottles(url, network=network, infra_name=infra_name)
     client = OrchestratorClient(url)
 
     cidr = _network_cidr(network)
@@ -117,6 +185,7 @@ def launch_consolidated(
         network=network,
         gateway_ip=gateway_ip,
         orchestrator_url=url,
+        env_var_secret=reg.env_var_secret,
     )
 
 

bot_bottle/backend/docker/launch.py

@@ -186,6 +186,7 @@ def launch(
             agent_git_gate_url=git_gate_url,
             agent_supervise_url=supervise_url,
             identity_token=ctx.identity_token,
+            env_var_secret=ctx.env_var_secret,
         )
 
         # Step 5: render + up the agent-only compose, pinned on the shared
@@ -198,7 +199,12 @@ def launch(
         project = compose_project_name(plan.slug)
         # Forwarded vars (OAuth token, host interpolations) flow through the
         # subprocess env as bare names so values never land in the file.
+        # ENV_VAR_SECRET follows the same pattern: bare name in the compose
+        # spec, value only in the subprocess env so it is never written to disk.
         compose_env: dict[str, str] = {**os.environ, **plan.forwarded_env}
+        if plan.env_var_secret:
+            from ...orchestrator.secret_store import ENV_VAR_SECRET_NAME
+            compose_env[ENV_VAR_SECRET_NAME] = plan.env_var_secret
         info(
             f"docker compose up -d  (project {project}, agent on shared "
             f"gateway {ctx.gateway_ip}, ip {ctx.source_ip})"

bot_bottle/backend/firecracker/consolidated_launch.py

@@ -50,6 +50,7 @@ class LaunchContext:
     source_ip: str          # the VM's guest IP — the attribution key
     gateway_ca_pem: str     # the shared gateway CA the provisioner installs
     orchestrator_url: str
+    env_var_secret: str = ""  # encryption key injected into the agent's env
 
 
 def launch_consolidated(
@@ -80,6 +81,7 @@ def launch_consolidated(
         source_ip=guest_ip,
         gateway_ca_pem=infra.gateway_ca_pem(),
         orchestrator_url=url,
+        env_var_secret=reg.env_var_secret,
     )
 
 

bot_bottle/backend/macos_container/consolidated_launch.py

@@ -72,6 +72,7 @@ class LaunchContext:
     gateway_ip: str
     network: str
     orchestrator_url: str
+    env_var_secret: str = ""  # encryption key injected into the agent's env
 
 
 def ensure_gateway(
@@ -152,6 +153,7 @@ def register_agent(
         gateway_ip=endpoint.gateway_ip,
         network=endpoint.network,
         orchestrator_url=endpoint.orchestrator_url,
+        env_var_secret=reg.env_var_secret,
     )
 
 

bot_bottle/orchestrator/client.py

@@ -41,10 +41,13 @@ class OrchestratorClientError(RuntimeError):
 @dataclass(frozen=True)
 class RegisteredBottle:
     """What `POST /bottles` returns: the minted bottle id and the per-bottle
-    identity token the agent presents for app-layer attribution."""
+    identity token the agent presents for app-layer attribution. `env_var_secret`
+    is set by the caller (not from the server response) and carries the
+    encryption key so it can be injected into the agent container's env."""
 
     bottle_id: str
     identity_token: str
+    env_var_secret: str = ""
 
 
 class OrchestratorClient:
@@ -120,17 +123,21 @@ class OrchestratorClient:
         metadata: str = "",
         policy: str = "",
         tokens: dict[str, str] | None = None,
+        env_var_secret: str = "",
     ) -> RegisteredBottle:
         """Register a bottle and broker its launch (`POST /bottles`). `tokens`
         are the per-bottle egress auth values (env_name -> value) the
-        orchestrator holds in memory for the gateway to inject. Returns the
-        minted id + identity token."""
+        orchestrator holds in memory for the gateway to inject. When
+        *env_var_secret* is provided, the orchestrator also encrypts the token
+        values and stores them in ``bottled_agent_secrets`` for restart
+        recovery. Returns the minted id + identity token."""
         payload = self._ok("POST", "/bottles", {
             "source_ip": source_ip,
             "image_ref": image_ref,
             "metadata": metadata,
             "policy": policy,
             "tokens": tokens or {},
+            "env_var_secret": env_var_secret,
         })
         bottle_id = payload.get("bottle_id")
         token = payload.get("identity_token")
@@ -138,6 +145,24 @@ class OrchestratorClient:
             raise OrchestratorClientError("register: response missing bottle_id/identity_token")
         return RegisteredBottle(bottle_id=bottle_id, identity_token=token)
 
+    def reprovision_gateway(self, bottle_id: str, env_var_secret: str) -> bool:
+        """Re-inject a bottle's egress tokens from its ENV_VAR_SECRET
+        (`POST /bottles/<id>/reprovision_gateway`). Returns True when the
+        orchestrator successfully decrypted and restored the tokens, False
+        when it had no stored secrets for this bottle (404)."""
+        status, _ = self._request(
+            "POST",
+            f"/bottles/{bottle_id}/reprovision_gateway",
+            {"env_var_secret": env_var_secret},
+        )
+        if status == 404:
+            return False
+        if not 200 <= status < 300:
+            raise OrchestratorClientError(
+                f"reprovision_gateway {bottle_id}: HTTP {status}"
+            )
+        return True
+
     def teardown_bottle(self, bottle_id: str) -> bool:
         """Tear a bottle down (`DELETE /bottles/<id>`). False if the
         orchestrator didn't know it (404) — idempotent for cleanup paths."""

bot_bottle/orchestrator/control_plane.py

@@ -9,9 +9,13 @@ vsock / unix-socket portability caveats):
     GET    /bottles                   -> 200 {"bottles": [ <redacted record>, ...]}
     POST   /bottles                   -> 201 {"bottle_id","identity_token"}  (launch)
                                          body: {"source_ip", ["image_ref"],
-                                                ["metadata"], ["policy"]}
+                                                ["metadata"], ["policy"],
+                                                ["tokens"], ["env_var_secret"]}
     PUT    /bottles/<bottle_id>/policy -> 200 {"updated": true} | 404  (live reload)
                                          body: {"policy"}
+    POST   /bottles/<bottle_id>/reprovision_gateway
+                                      -> 200 {"reprovisioned": true} | 404
+                                         body: {"env_var_secret"}
     DELETE /bottles/<bottle_id>        -> 200 {"torn_down": true} | 404  (teardown)
     POST   /reconcile                 -> 200 {"reaped": [bottle_id, ...]}
                                          body: {"live_source_ips": [...],
@@ -116,12 +120,14 @@ def dispatch(  # pylint: disable=too-many-return-statements,too-many-branches
         tokens = {
             k: v for k, v in raw_tokens.items() if isinstance(k, str) and isinstance(v, str)
         } if isinstance(raw_tokens, dict) else {}
+        env_var_secret = data.get("env_var_secret", "")
         rec = orch.launch_bottle(
             source_ip,
             image_ref=image_ref if isinstance(image_ref, str) else "",
             metadata=metadata if isinstance(metadata, str) else "",
             policy=policy if isinstance(policy, str) else "",
             tokens=tokens,
+            env_var_secret=env_var_secret if isinstance(env_var_secret, str) else "",
         )
         return 201, {"bottle_id": rec.bottle_id, "identity_token": rec.identity_token}
 
@@ -138,6 +144,23 @@ def dispatch(  # pylint: disable=too-many-return-statements,too-many-branches
             return 200, {"updated": True}
         return 404, {"error": "no such bottle"}
 
+    if (
+        method == "POST"
+        and route.startswith("/bottles/")
+        and route.endswith("/reprovision_gateway")
+    ):
+        bottle_id = route[len("/bottles/") : -len("/reprovision_gateway")]
+        try:
+            data = _parse_json_object(body)
+        except ValueError as e:
+            return 400, {"error": f"invalid JSON: {e}"}
+        env_var_secret = data.get("env_var_secret")
+        if not isinstance(env_var_secret, str) or not env_var_secret:
+            return 400, {"error": "env_var_secret (string) is required"}
+        if orch.reprovision_from_secret(bottle_id, env_var_secret):
+            return 200, {"reprovisioned": True}
+        return 404, {"error": "no stored secrets for this bottle"}
+
     if method == "DELETE" and route.startswith("/bottles/"):
         bottle_id = route[len("/bottles/"):]
         if orch.teardown_bottle(bottle_id):

bot_bottle/orchestrator/registry.py

@@ -113,6 +113,22 @@ _MIGRATIONS = TableMigrations(
         # egress allowlist / routes / git config selected by source IP. The
         # multi-tenant gateway resolves it per request via `attribute`.
         "ALTER TABLE orchestrator_bottles ADD COLUMN policy TEXT NOT NULL DEFAULT ''",
+        # v4 — per-bottle encrypted egress secrets (PRD prd-new-secret-provider).
+        # One row per env-var: key (env-var name) is plaintext for auditing;
+        # value is the encrypted token string. The encryption key (ENV_VAR_SECRET)
+        # lives only in the agent's environment — a row alone cannot recover the
+        # credential.
+        """
+        CREATE TABLE IF NOT EXISTS bottled_agent_secrets (
+            bottled_agent_id TEXT NOT NULL,
+            key              TEXT NOT NULL,
+            value            TEXT NOT NULL,
+            type             TEXT NOT NULL DEFAULT 'injected_env_var'
+        )
+        """,
+        # v5 — index for fast per-bottle lookups and bulk DELETE on teardown.
+        "CREATE INDEX IF NOT EXISTS idx_bottled_agent_secrets_id "
+        "ON bottled_agent_secrets (bottled_agent_id, type)",
     ],
 )
 
@@ -326,6 +342,57 @@ class RegistryStore(DbStore):
             return None
         return rec
 
+    # --- encrypted egress secret store ------------------------------------
+
+    def store_agent_secrets(
+        self,
+        bottle_id: str,
+        encrypted_values: dict[str, str],
+        secret_type: str = "injected_env_var",
+    ) -> None:
+        """Replace all stored secrets for *bottle_id* with *encrypted_values*
+        (env-var name → encrypted ciphertext). Deletes then re-inserts so a
+        re-registration is always consistent with the current token set."""
+        with self._connection() as conn:
+            conn.execute(
+                "DELETE FROM bottled_agent_secrets "
+                "WHERE bottled_agent_id = ? AND type = ?",
+                (bottle_id, secret_type),
+            )
+            conn.executemany(
+                "INSERT INTO bottled_agent_secrets "
+                "(bottled_agent_id, key, value, type) VALUES (?, ?, ?, ?)",
+                [(bottle_id, k, v, secret_type) for k, v in encrypted_values.items()],
+            )
+        self._chmod()
+
+    def get_agent_secrets(
+        self,
+        bottle_id: str,
+        secret_type: str = "injected_env_var",
+    ) -> dict[str, str]:
+        """Return {env_var_name: encrypted_value} for *bottle_id*, or {} if none."""
+        with self._connection() as conn:
+            rows = conn.execute(
+                "SELECT key, value FROM bottled_agent_secrets "
+                "WHERE bottled_agent_id = ? AND type = ?",
+                (bottle_id, secret_type),
+            ).fetchall()
+        return {row[0]: row[1] for row in rows}
+
+    def delete_agent_secrets(
+        self,
+        bottle_id: str,
+        secret_type: str = "injected_env_var",
+    ) -> None:
+        """Remove all stored secrets for *bottle_id* (e.g. on teardown)."""
+        with self._connection() as conn:
+            conn.execute(
+                "DELETE FROM bottled_agent_secrets "
+                "WHERE bottled_agent_id = ? AND type = ?",
+                (bottle_id, secret_type),
+            )
+
 
 __all__ = [
     "BottleRecord",

bot_bottle/orchestrator/secret_store.py

@@ -0,0 +1,94 @@
+"""Symmetric encryption for per-bottle egress secrets (PRD prd-new-secret-provider).
+
+Each agent receives a random ENV_VAR_SECRET at startup — passed as an env var,
+never logged or persisted. The host uses this key to encrypt each egress auth
+token value before writing it to the bottled_agent_secrets table; the DB rows
+(ciphertext, plaintext env-var name) without the key are insufficient to
+recover the credentials.
+
+On orchestrator restart the in-memory token map is lost. The host-side
+reattachment path reads ENV_VAR_SECRET from the running agent container via
+``docker exec … printenv ENV_VAR_SECRET`` and posts it to
+``POST /bottles/<id>/reprovision_gateway``; the orchestrator decrypts the
+stored rows and re-populates ``_tokens``.
+
+Encryption scheme: HMAC-SHA256 used as a PRF in CTR mode (stdlib-only,
+no external deps). Each value is encrypted independently. The output blob is
+``nonce (16 bytes) || ciphertext`` encoded as URL-safe base64 (no padding).
+
+    keystream_block_i = HMAC-SHA256(key, nonce || i.to_bytes(4, "big"))
+    ciphertext_i      = plaintext_i XOR keystream_block_i[:len(plaintext_i)]
+"""
+
+from __future__ import annotations
+
+import base64
+import hashlib
+import hmac
+import secrets
+
+_KEY_BYTES = 32    # 256-bit key from ENV_VAR_SECRET
+_NONCE_BYTES = 16  # 128-bit random nonce per encrypt call
+_BLOCK = 32        # HMAC-SHA256 output width == one keystream block
+
+# Env-var name the agent container receives at startup.
+ENV_VAR_SECRET_NAME = "ENV_VAR_SECRET"
+
+
+def new_env_var_secret() -> str:
+    """Generate a fresh ENV_VAR_SECRET: 32 random bytes as URL-safe base64."""
+    return base64.urlsafe_b64encode(secrets.token_bytes(_KEY_BYTES)).rstrip(b"=").decode()
+
+
+def _b64dec(s: str) -> bytes:
+    return base64.urlsafe_b64decode(s + "=" * (-len(s) % 4))
+
+
+def _keystream(key: bytes, nonce: bytes, block_index: int) -> bytes:
+    return hmac.new(
+        key, nonce + block_index.to_bytes(4, "big"), hashlib.sha256
+    ).digest()
+
+
+def encrypt_value(secret_b64: str, plaintext: str) -> str:
+    """Encrypt a single string value with *secret_b64* (the ENV_VAR_SECRET).
+
+    Returns a URL-safe base64 blob ``nonce || ciphertext`` suitable for
+    the ``bottled_agent_secrets.value`` column."""
+    key = _b64dec(secret_b64)
+    pt = plaintext.encode()
+    nonce = secrets.token_bytes(_NONCE_BYTES)
+    ct = bytearray()
+    for i in range(0, len(pt), _BLOCK):
+        chunk = pt[i : i + _BLOCK]
+        ks = _keystream(key, nonce, i)[: len(chunk)]
+        ct.extend(p ^ k for p, k in zip(chunk, ks))
+    return base64.urlsafe_b64encode(nonce + bytes(ct)).rstrip(b"=").decode()
+
+
+def decrypt_value(secret_b64: str, blob_b64: str) -> str:
+    """Decrypt a blob produced by :func:`encrypt_value`.
+
+    Returns the original plaintext string. Raises ``ValueError`` for malformed
+    input or a key mismatch (wrong key produces garbage, not an error, unless
+    the plaintext is non-UTF-8 — treat all such failures as wrong key)."""
+    key = _b64dec(secret_b64)
+    try:
+        blob = _b64dec(blob_b64)
+    except Exception as exc:
+        raise ValueError(f"invalid ciphertext blob: {exc}") from exc
+    if len(blob) < _NONCE_BYTES:
+        raise ValueError("ciphertext blob too short")
+    nonce, ciphertext = blob[:_NONCE_BYTES], blob[_NONCE_BYTES:]
+    pt = bytearray()
+    for i in range(0, len(ciphertext), _BLOCK):
+        chunk = ciphertext[i : i + _BLOCK]
+        ks = _keystream(key, nonce, i)[: len(chunk)]
+        pt.extend(c ^ k for c, k in zip(chunk, ks))
+    try:
+        return bytes(pt).decode()
+    except UnicodeDecodeError as exc:
+        raise ValueError(f"decryption produced non-UTF-8 output (wrong key?): {exc}") from exc
+
+
+__all__ = ["ENV_VAR_SECRET_NAME", "new_env_var_secret", "encrypt_value", "decrypt_value"]

bot_bottle/orchestrator/service.py

@@ -87,13 +87,22 @@ class Orchestrator:
         metadata: str = "",
         policy: str = "",
         tokens: dict[str, str] | None = None,
+        env_var_secret: str = "",
     ) -> BottleRecord:
         """Register a bottle (with its gateway policy + in-memory egress auth
         tokens) and broker its launch. Rolls the registry entry back if the
-        launch doesn't take, so a failure leaves no orphan."""
+        launch doesn't take, so a failure leaves no orphan.
+
+        When *env_var_secret* is provided alongside *tokens*, the token values
+        are also encrypted and written to ``bottled_agent_secrets`` so they can
+        survive an orchestrator restart (see ``reprovision_from_secret``)."""
         rec = self.registry.register(source_ip, metadata=metadata, policy=policy)
         if tokens:
             self._tokens[rec.bottle_id] = dict(tokens)
+            if env_var_secret:
+                from .secret_store import encrypt_value
+                encrypted = {k: encrypt_value(env_var_secret, v) for k, v in tokens.items()}
+                self.registry.store_agent_secrets(rec.bottle_id, encrypted)
         req = LaunchRequest(
             op="launch",
             bottle_id=rec.bottle_id,
@@ -284,6 +293,26 @@ class Orchestrator:
             ))
         return True, ""
 
+    # --- secret reprovision -----------------------------------------------
+
+    def reprovision_from_secret(self, bottle_id: str, env_var_secret: str) -> bool:
+        """Re-inject a bottle's egress tokens from its ENV_VAR_SECRET.
+
+        Reads the encrypted rows from ``bottled_agent_secrets``, decrypts each
+        value with *env_var_secret*, and restores ``_tokens[bottle_id]``.
+        Returns True on success, False when no stored secrets exist for this
+        bottle or decryption fails (wrong key / corrupt data)."""
+        from .secret_store import decrypt_value
+        encrypted = self.registry.get_agent_secrets(bottle_id)
+        if not encrypted:
+            return False
+        try:
+            self._tokens[bottle_id] = {k: decrypt_value(env_var_secret, v)
+                                       for k, v in encrypted.items()}
+        except ValueError:
+            return False
+        return True
+
     # --- consolidated gateway ----------------------------------------------
 
     def ensure_gateway(self) -> None: