5 Commits
Author SHA1 Message Date
Drew Newberry 77929d9c14 feat(sandbox): publish and activate sandbox backend protocol (#3898)
* feat(isolation): publish backend protocol contracts independently of runtime

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): expose trusted launch and registry data contracts

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): name the required capability sandbox

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): align protocol and compute capability names

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): finalize public protocol contract names

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation)!: activate backend contracts in sandbox runtime and driver selection

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): simplify runtime and fix backend example

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(examples): organize WASI backend in Rust

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): defer protocol conformance fixtures

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(examples): add supervised V8 backend demo

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(examples): stream V8 guest output with default policy

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(examples): handle V8 rejections and roll back failed launches

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(examples): align V8 crypto dependencies with CI AWS-LC

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(sandbox): represent Sandbox Protocol operations in protobuf

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): replace backend traits with RPC clients

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(proto): remove legacy isolation protocol reservations

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(proto): clarify Sandbox Protocol names

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs(isolation): clarify authentication bootstrap and supervisor APIs

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): simplify policy enforcement confirmation

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): rotate launch generations and stabilize retry sessions

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): remove redundant backend adapters and TCP flags

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): repair Docker restarts and macOS lint

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): simplify RPC contracts and backend registration

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): deliver TCP denials before closing the RPC

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

---------

Signed-off-by: Drew Newberry <anewberry@nvidia.com>
2026-10-16 19:18:44 +00:00
Drew Newberry eeba0e7954 refactor(runtime): confine and reduce unsafe code (#4130)
* refactor(runtime): confine and reduce unsafe code

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(ci): make signal probe portable and gate Linux initialization

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(cli): handle platform-specific SSH cancellation lints

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

---------

Signed-off-by: Drew Newberry <anewberry@nvidia.com>
2026-10-10 01:12:03 +00:00
Drew Newberry 12cec59bf4 fix(sandbox): accept local connections natively on loopback-confined sockets (#4150)
* fix(sandbox): accept local connections natively on loopback-confined sockets

On kernels without SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV (RHEL 9 / RHCOS
5.14), the broker cannot safely write an accepted peer address into
workload memory, so accept/accept4 with a peer-address buffer failed with
EOPNOTSUPP. Static binaries and Go servers, which issue the raw syscall,
could not accept connections at all.

Move local acceptance into the kernel and replace per-accept inspection
with standing kernel confinement:

- Bind every broker-created TCP/UDP socket to the loopback device before
  injection and verify the binding. Accepted sockets inherit it, so they
  can neither receive routed ingress nor emit routed egress.
- Stop notifying accept/accept4 and remove the accept workers, the
  SIGUSR2 accept-interrupt monitor, and the 64-accept ceiling.
- Continue getpeername natively for every descriptor except relayed
  connections.
- Deny interface-selection socket options and MSG_FASTOPEN sends from
  scalar syscall arguments, so confinement does not depend on the
  capability state of the user namespace that owns the network namespace
  and covers unregistered descriptors.
- Drop loopback-interface ingress on the non-loopback TCP control
  listener before it listens, so a workload cannot reach it by
  reconnecting a natively accepted socket.
- Mark descriptors above stdio close-on-exec in every workload pre_exec
  path.
- Require an active confinement probe at qualification and carry it as
  required authenticated audit evidence.

Document OpenShift 4.19 as the minimum release: RHCOS kernels for 4.16
through 4.18 are built without Landlock.

Closes #4058

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): close review gaps in native local accept confinement

- Reject a TCP boundary control listener on a loopback address,
  including IPv4-mapped loopback. Production drivers bind the
  unspecified address; a loopback listener would be reachable from
  workload sockets the broker does not track.
- Extend the confinement probe to IPv6 and prove that an accepted
  socket keeps its loopback binding after an AF_UNSPEC disconnect.
- Pin the accepted-peer contract with tests: a loopback-bound listener
  admits only clients in the sandbox network namespace, and workload
  sockets cannot bind a non-loopback source address.
- Correct the support matrix: accepted connections are bounded by
  per-process descriptor limits, the runtime PID limit, and the sandbox
  memory limit, not by a broker limit.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): replace unsafe socket calls with socket2 and rustix

Socket confinement now uses socket2 for device binding and the ingress
filter, and rustix for interface lookup and AF_UNSPEC disconnect, so the
module contains no unsafe code. The control-listener filter is no longer
locked: no safe API exposes SO_LOCK_FILTER, and the listener descriptor
never leaves the trusted sandbox process, which marks every descriptor
above stdio close-on-exec before running workload code.

Tests added for native accept use rustix and socket2 instead of raw libc
calls. rustix issues accept4 and getpeername as raw syscalls, so the
direct-syscall test keeps its meaning. The close-on-exec sweep test runs
in a re-executed test process instead of a forked child.

The close_range(CLOSE_RANGE_CLOEXEC) syscall in the pre_exec hook remains
the only unsafe added by this branch; neither rustix nor nix wraps it.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): allowlist workload socket families

The workload seccomp filter denied only AF_PACKET, AF_BLUETOOTH, and
AF_VSOCK, and the broker continued socket() for every non-INET family.
Several protocol families, including AF_RXRPC, AF_SMC, and AF_KCM, carry
traffic over kernel-owned sockets that the broker never creates and that
are not bound to loopback.

Allow only AF_UNIX, AF_NETLINK (still limited to NETLINK_ROUTE), and the
brokered AF_INET/AF_INET6 families, and restrict socketpair(2) to
AF_UNIX. Both decisions use the scalar domain argument. The broker
independently refuses non-INET families other than AF_UNIX and
AF_NETLINK with EAFNOSUPPORT.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): remove legacy read-only mode

After native local accept, only two broker paths still wrote into
workload memory: getpeername on relayed connections and the per-message
lengths of a first sendmmsg to the DNS relay. Legacy mode existed only to
refuse those writes on kernels without WAIT_KILLABLE_RECV, and the
getpeername refusal broke CPython TLS on RHEL 9.

The broker now never writes workload memory:
- getpeername is no longer mediated and reports the kernel peer on every
  kernel; relayed connections report the loopback relay address.
- A first send to the DNS relay pins the broker's socket copy to the
  relay and continues the syscall, so the kernel performs the send and
  writes any per-message results.

Remove the listener mode, the task-memory write path and probe, and the
task_memory_write, cancellation, and task_memory_writes_disabled audit
evidence fields. WAIT_KILLABLE_RECV is still used when available and is
reported for diagnostics, but no mediation decision depends on it.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): drop WAIT_KILLABLE_RECV and make handlers restart-safe

The broker no longer writes workload memory, so killable notification
waits only reduced how often a signal restarts a notified syscall. RHEL 9
kernels never had them, so the handlers must tolerate restarts anyway.
Install the listener without the flag on every kernel instead of
special-casing newer ones.

Handlers now check that the notification is still live immediately
before each side effect (bind, connect of the retained socket, listen,
and the first DNS send), and answer a restarted operation the broker
already completed as the kernel would: a repeated TCP connect returns
EISCONN, repeating the same UDP association succeeds, a repeat of a
completed bind succeeds, and a failed relay reports its errno.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): finish teardown only when every workload descendant has exited

Teardown waited only for registered process groups to disappear. A root
is unregistered once reaped, so a descendant that ignored SIGTERM could
outlive it while termination reported success and never sent SIGKILL,
violating the bounded-termination requirement.

The sandbox now becomes a child subreaper when it is not PID 1, so
orphaned descendants stay in its tree and are reaped. Termination waits
until no live descendant remains, and every scanned process is signalled
through a pidfd after confirming its start time, so a reused PID is never
signalled.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): keep a frozen workload from resuming itself

Freezing stops every workload process with SIGSTOP. tgkill and
rt_tgsigqueueinfo were not mediated, and mediated kill, rt_sigqueueinfo,
and tkill passed SIGCONT through, so a workload process that was not yet
stopped could resume the others while the supervisor recovered.

Mediate tgkill and rt_tgsigqueueinfo like tkill: refuse targets in the
sandbox thread group, report a thread outside the named group as
missing, and continue otherwise. The boundary marks the broker frozen
before stopping the workload and clears it after resuming; while frozen,
workload requests to send SIGCONT fail with EPERM.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): send mediated DNS datagrams from the broker socket

The native UDP send path re-ran the workload's own sendmsg, so
per-message ancillary data such as IP_PKTINFO rode along; only the
loopback destination contained a routing override.

The broker now reads the datagram and sends it from its retained,
relay-connected socket, which it builds without ancillary data, so a
per-message override cannot redirect the packet. It writes nothing back
into workload memory. A send carrying control data is refused with
EOPNOTSUPP rather than silently stripped.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): keep sandbox control variables out of the workload environment

The canonical process inherits the sandbox environment so the image's
own ENV reaches the workload, then removed only a denylist of credential
variables. Other variables in the reserved OPENSHELL_ namespace, such as
the serialized user environment and the log level, still reached the
workload.

Remove every inherited OPENSHELL_ variable before applying the declared
environment, and restore OPENSHELL_SANDBOX=1. The image's ordinary ENV
and declared variables are unaffected; declared variables cannot use the
reserved namespace.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): keep /proc read-only for GPU workloads

GPU mode granted read-write access to all of /proc so CUDA's cuInit could
write thread names to /proc/<pid>/task/<tid>/comm.

Keep /proc read-only. Open mediation now serves a writable open of the
caller's own thread comm file: the broker opens it and injects the
descriptor, with no syscall continued. The kernel accepts a comm write
only from the target's own thread group, so a substituted path or reused
thread ID cannot rename another process's thread. Any other /proc write
is left to Landlock, which denies it.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): keep the broker socket for connected UDP DNS sockets

Sending DNS datagrams from the broker's socket required the broker to
keep its copy, but the connect paths to the relay and to loopback still
released it. glibc connects the resolver socket and then sends A and
AAAA together with sendmmsg, which is mediated, so resolution failed.

Release the copy on those connect paths only for TCP. Add a regression
test for connect followed by sendmmsg that fails fast rather than
hanging.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): keep slow loopback connects from stalling mediation

The loopback connect path held the registry lock while polling a TCP
connect for up to five seconds on the single notification dispatcher.
A workload connecting to a busy local listener stalled every other
mediated syscall, including opens and signals.

Connect a duplicate of the retained socket without holding the lock. A
nonblocking socket gets the native EINPROGRESS and the kernel completes
the handshake on the shared socket; a blocking socket waits on a bounded
worker thread.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): contain network broker handler panics

A panic in a notification handler unwound the single broker thread while
the health flag still read healthy, so every later blocked workload
syscall hung until the sandbox was killed.

Run each dispatch under catch_unwind: a panicking handler fails only that
syscall with EIO and the broker keeps mediating. If the broker thread
ever exits, mark it unhealthy so dependent operations fail closed instead
of blocking.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): reject ancillary data on DNS sends instead of broker-sending

Sending mediated DNS datagrams from the broker's own socket required
keeping a broker handle for each DNS socket's whole life, which regressed
real name resolution through reclaim and resource accounting that the
mock-based unit tests did not exercise.

Revert to continuing the kernel send, but refuse a send that carries
ancillary control data (msg_controllen != 0) at read time, so a
per-message routing override such as IP_PKTINFO cannot ride a mediated
DNS send. A loopback destination contains an override that races the
check. Full broker-side UDP mediation is left to a separate change with
deployment e2e.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): address review findings across the hardening changes

Fixes:
- The blocking local-connect worker no longer toggles O_NONBLOCK on the
  open file it shares with the workload; it waits with a plain connect.
- tgkill and rt_tgsigqueueinfo are notified only when they send SIGCONT,
  so ordinary thread signals such as Go preemption stay in the kernel.
  The frozen flag is re-read immediately before delivery.
- A shell redirect to the caller's own thread comm file works again;
  O_CREAT and O_TRUNC are no-ops there and O_EXCL returns EEXIST.
- The teardown scan is a linear walk and fails closed when /proc cannot
  be read.

Simplifications:
- Remove tests that need infrastructure outside the repo or prove
  nothing: the topology harness tests, the static-server benchmark, the
  direct-syscall accept test, the comm rename test without Landlock, a
  serde-default test, and the test-only panic hook in setsockopt.
- Drop the unused Failed connect outcome, the redundant read-back after
  binding to loopback, redundant OPENSHELL_SANDBOX settings, and stale or
  duplicated comments; reuse the reserved environment prefix constant.
- Tighten the support matrix and OpenShift wording.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(cli): wait for input when piped exec stdin is nonblocking

Processes that inherit the same stdin share one open file description,
so any of them can make it nonblocking for all. `sandbox exec` then read
no input yet, got EAGAIN, and failed with "Resource temporarily
unavailable (os error 11)". Parallel e2e tests inherit the runner's
stdin, which made credential_gating fail intermittently.

The stdin reader now blocks in poll() until input or end of file arrives
instead of treating EAGAIN as fatal, and it leaves the shared descriptor's
flags alone. The e2e exec helper also stops inheriting the runner's
stdin, since its commands take no input.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): fix macOS lint and older-glibc test linking

Import HashSet only in the Linux-only process scan, and call gettid
through the raw syscall in a test, since the libc wrapper needs glibc
2.30 or newer.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs(sandbox): clarify socket peer address reporting

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

---------

Signed-off-by: Drew Newberry <anewberry@nvidia.com>
2026-10-06 04:08:04 +00:00
Drew Newberry 96c08f111b refactor(isolation)!: make confirmation backend-neutral (#3366)
* refactor(isolation): make confirmation backend-neutral

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): validate confirmation evidence at host boundary

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): keep fence evidence driver-owned

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation)!: validate explicit fence projections

Require each compute driver to map its native evidence to individual outer-fence guarantees, and reject incomplete projections before a boundary becomes ready. Exercise the assembled remote confirmation path for invalid audit, property, generation, and digest evidence.

BREAKING CHANGE: BoundaryConfig and SandboxRuntimeDescriptor use outer_fence projections rather than the earlier driver_fence representation. State written by earlier builds cannot be decoded; operators must stop and recreate affected sandboxes after upgrading.

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): clarify outer fence ownership

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): update confirmation test fixtures

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

---------

Signed-off-by: Drew Newberry <anewberry@nvidia.com>
2026-09-21 15:27:16 -07:00
Drew Newberry c1f2e7189f feat(isolation): implement the RFC 0012 sandbox architecture (#2942)
* feat(isolation): add RFC 0012 backend contract

Signed-off-by: Drew Newberry <385+drew@users.noreply.github.com>

* refactor(isolation): name the interface crate explicitly

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): expose trusted host gateway

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs(agents): inventory the MXC driver

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): add mediated DNS transport

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): tighten interface error and digest contracts

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs(isolation): remove unrelated driver inventory

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): define capability-free launch contract

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): seal confirmed boundary state

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): validate confirmation for external backend implementations

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): clarify mediated DNS identity

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): generalize loopback connector

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): unify typed network mediation

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): bind launches to sandbox sessions

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(mxc): initialize extended sandbox status

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): add boundary protocol and Linux primitives

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): harden signals and separate process status from transport

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): validate remote confirmation through public contract

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): validate wire state and propagate snapshot failures

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* test(isolation): import owned agent specification explicitly

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs(isolation): describe mediated DNS channel

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): bound mediation attach without nested retries

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): generalize loopback protocol

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): add transport-neutral session authentication

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): separate sandbox backend protocol

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): harden runtime boundary controls

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): add terminal boundary operation

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): split supervisor and sandbox runtimes

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): harden boundary isolation and lifecycle ownership

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): reject private root redirects and adopt typed errors

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): preserve accept thread ownership on musl

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* test(sandbox): isolate credential probes from filtered threads

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): return retained exec exit status to independent waiters

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): bound network mediation and preserve socket authorization

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): bound control admission and retire stale mediation

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* ci(e2e): select migrated drivers per stack layer

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): implement loopback connector

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(isolation): authenticate the Sandbox Protocol

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(supervisor): rotate launch-scoped authentication

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): consume dedicated backend crate

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* test(sandbox): align topology session fixture

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): align projected bootstrap bundle

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(auth): validate refreshed credentials before rotation

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): fail closed across supervisor disconnects

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): repair rebased sandbox CI

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* build(runtime): publish separate sandbox and supervisor images

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(config): configure the sandbox runtime image

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(ci): validate sandbox binary linkage

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(isolation): use backend and runtime terminology

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(sandbox): use a scratch runtime image

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(ci): refresh schema and dependency policy

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(sandbox): bind reconnects to supervisor process

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs: align runtime split operational guidance

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* chore(security): document Kubernetes runtime RBAC

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): enforce runtime lifecycle invariants

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(compute): identify sandbox start generations

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(server): restore sandbox launch sessions

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): support authenticated runtime replacement

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(auth): bind sandbox session successors

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(auth): retry pending sandbox successors

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(vm): run the supervisor outside the guest workload

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(vm): use sandbox backend protocol

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): repair rebase integration

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): use unified build toolchain

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(vm): use sandbox runtime terminology

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(vm): own guest network bootstrap

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): expose guest init version

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): select native supervisor artifacts

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): guard guest init Linux symbols

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): scope Linux test imports

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): avoid guest interface casts

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): reconcile admitted sandbox identity

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): share resolved sandbox identity

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): surface host supervisor failures

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): include guest logs on supervisor exit

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): rotate and clean runtime generations

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): make sandbox starts generation-aware

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): rotate restored sandbox sessions

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(vm): keep shared paths in the base layer

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): bind sandbox session lineage

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(docker): isolate workloads behind the host supervisor

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(docker): rotate launch-scoped authentication

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(docker): use sandbox backend protocol

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(docker): use host networking for supervisor

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): preserve host gateway alias resolution

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(docker): use separate sandbox and supervisor images

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): restore startup validation after rebase

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(docker): name the sandbox runtime directly

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): narrow supervisor CA runtime storage

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): close companion isolation gaps

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* test(docker): align mediated network expectations

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* test(docker): exercise mediated network paths

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): attach supervisor to managed network

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): defer supervisor recovery until gateway is ready

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): make sandbox starts generation-aware

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): rotate restored sandbox sessions

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): preserve workloads during session rotation

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(docker): remove unrelated configuration RFC changes

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): bind sandbox session lineage

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(kubernetes): add proxy-pod isolation topology

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(kubernetes): use sandbox backend protocol

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): use stable sandbox service authority

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(kubernetes): split sandbox and supervisor images

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): adapt proxy pods to current runtime APIs

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(kubernetes): describe the single runtime placement

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(kubernetes): simplify sandbox orchestration

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): validate deployment prerequisites

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): update Trivy Helm profile inventory

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* test(kubernetes): update Trivy scan inventory count

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): reuse preloaded runtime images in e2e

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): type and clean runtime resources

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): make sandbox restarts recoverable

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): rotate restored sandbox sessions

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): preserve supervisor egress

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): bind sandbox session lineage

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(podman): adopt isolated sandbox and supervisor containers

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): stage bootstrap archives at named volume destinations

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(podman): rotate launch-scoped authentication

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(podman): use sandbox backend protocol

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(podman): use host networking for supervisor

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(podman): split sandbox and supervisor images

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): repair rebase integration

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(podman): name the sandbox runtime directly

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): provision supervisor CA runtime storage

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): address isolation review findings

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): inspect Debian supervisor provenance

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): use libpod-compatible tmpfs options

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): bind verified sandbox runtime binary

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): provide external driver data directory

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): start sandbox before joining user namespace

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): separate supervisor user namespace

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): make sandbox starts generation-aware

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): rotate restored sandbox sessions

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): bind sandbox session lineage

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* perf(isolation): add TCP and DNS benchmark harnesses

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(perf): align benchmark timing and supported protocols

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(perf): report TCP benchmark metrics accurately

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(perf): cancel failed worker startup

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(docker): build matching local supervisor image

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(podman): make local sandbox smoke test runnable

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): wire local sandbox runtime image

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(kubernetes): narrow sandbox service RBAC

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(ci): validate split runtime artifacts

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): harden runtime session handling

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* feat(supervisor): add standalone network proxy role

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* docs(rfc): remove implementation companion notes

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* refactor(vm): standardize runtime release name

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(vm): pin renamed runtime artifacts

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(auth): persist sandbox runtime identity

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(runtime): restore branch validation

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(isolation): reconcile main after rebase

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(network): close unframed HTTP 1.0 responses

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* chore(isolation): preserve upstream OCSF updates

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(security): close credential and TLS replay paths

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

* fix(auth): make sandbox refresh retries idempotent

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

---------

Signed-off-by: Drew Newberry <385+drew@users.noreply.github.com>
Signed-off-by: Drew Newberry <anewberry@nvidia.com>
2026-09-16 00:49:14 +00:00