Files
Drew Newberry ef296806f5 feat(sandbox): add canonical main process (#2726)
* feat(sandbox): add canonical main process

Closes #2710

Persist and supervise one canonical workload per sandbox, attach sandbox connect to its retained session, and make every unexpected main-process exit terminal.

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

* feat(sandbox): simplify canonical main process contract

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

* fix(sandbox): preserve legacy VM main compatibility

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

* fix(sandbox): preserve main status across driver updates

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

* fix(sandbox): satisfy macOS process lint

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

* fix(sandbox): gate Linux exit acknowledgement publisher

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

* refactor(sandbox): simplify main process plumbing

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

* fix(supervisor): make controlling tty ioctl portable

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

* fix(supervisor): initialize canonical process environment

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

* perf(supervisor): optimize retained main session

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

* feat(sandbox): detach main session on ctrl-c

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

* fix(sandbox): use explicit main detach keys

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

* fix(dev): atomically stage Docker supervisor

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

* fix(test): align Docker main environment assertion

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

* feat(sdk): expose canonical main process fields

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

---------

Signed-off-by: Drew Newberry <anewberry@nvidia.com>
2026-08-20 22:18:23 +00:00
..

openshell-sdk

openshell-sdk is the shared async Rust client for OpenShell gateways. It owns gRPC channel setup, TLS, OIDC refresh, and the Cloudflare Access tunnel so the CLI, the TUI, and language bindings share one client implementation. Callers pass an explicit bearer token; the SDK does no filesystem access and no gateway-name resolution.

Two layers

  • OpenShellClient — the curated, sandbox-focused surface: health, sandbox CRUD, readiness/deletion waits, and non-streaming exec.
  • raw — direct access to the generated tonic clients for RPCs the curated surface doesn't yet cover (inference, providers, policy, logs, settings, SSH, forwarding).

Auth and refresh

The curated surface drives OIDC refresh automatically: proactively before a request and reactively on Unauthenticated. Refreshes are single-flight, so only one is in flight at a time.

The plain raw_grpc/raw_inference accessors do not refresh; they return a client bound to the current token. When a refresher is wired, use raw_grpc_fresh/raw_inference_fresh to refresh before the call, and force_refresh to recover after a raw RPC returns Unauthenticated.

The SDK consumes a Refresh trait that the caller implements; it does not run the OIDC browser flow itself. Its non-interactive refresh-token exchange also accepts scopes that identity providers may require to select the API resource for the refreshed access token.

Transport modes

  • Plaintext (local development)
  • Server-authenticated TLS (system roots, or a pinned private CA via ca_cert)
  • OIDC bearer over HTTPS (gateways behind an OAuth2/OIDC IdP)
  • Cloudflare Access tunnel (hosted gateways)
  • Insecure TLS (development/debug; certificate verification disabled)

mTLS (client certificates) is not supported.

Public surface

OpenShellClient::connect(ClientConfig) returns a connected client exposing health, create_sandbox, get_sandbox, list_sandboxes, delete_sandbox, wait_ready, wait_deleted, and exec. Curated types (SandboxSpec, SandboxRef, Health, ListOptions, ExecOptions, SandboxPhase) use SDK-shaped enums rather than raw proto integers. Failures map to a typed SdkError with a discriminable kind.

Modules

Module Purpose
client High-level OpenShellClient and the curated sandbox surface.
config ClientConfig, AuthConfig.
transport Channel construction, TLS resolution, request interceptors.
auth EdgeAuthInterceptor for bearer-token attachment.
oidc OIDC token handling at the transport layer.
refresh Refresh trait and single-flight refresh coalescing.
edge_tunnel Cloudflare Access tunnel dialer.
error SdkError taxonomy.
types Curated request/response types and proto conversions.
raw Escape hatch re-exporting the generated tonic clients.

Notes

  • Async-only. Tonic is async-native; callers needing a blocking call can wrap with their own runtime.
  • The curated surface will grow as more RPCs graduate from raw.