Polite_realism
10241ab47b
* fix(podman): trust an operator-supplied additional CA for direct egress Since v0.1.2 the Podman supervisor runs as its own container, separate from the workload image, so it can no longer inherit a private CA baked into the workload's system trust store. Policy-allowed, inspected HTTPS requests to destinations signed by that CA fail upstream TLS establishment, and the only workaround is rebuilding the supervisor image with the CA baked in. Add a Podman-only additional_ca_bundle setting, independent of the existing proxy_ca_bundle (which requires https_proxy), that bind-mounts an operator PEM into the supervisor container and folds it into the upstream trust store alongside the system CA bundle. Validated on the gateway host at sandbox-create time, matching the existing corporate proxy CA bundle's validation, so a misconfigured path or certificate-free bundle fails closed immediately rather than producing a failed sandbox once the supervisor container starts. Scoped to Podman only, reusing the existing additive-bundle mechanism without new gateway.toml schema, proto fields, or cross-driver plumbing -- a narrower alternative to the in-flight cross-driver implementation in #3292, which remains the intended long-term direction. Fixes #3781. Signed-off-by: politerealism <burdcat17@gmail.com> * fix(podman): keep additional CA mount on the supervisor build_isolation_specs() keeps only trusted_mount() destinations on the supervisor, and the additional CA path was not in that list. The bind mount stayed on the workload while the supervisor received --additional-ca-bundle for a file it did not have, so startup failed. Add the path to trusted_mount() and cover the final supervisor and workload specs with a test. Correct the docs and a code comment to say the bundle is validated when the driver starts, and add Podman troubleshooting guidance to the debug-openshell-cluster skill. Signed-off-by: politerealism <burdcat17@gmail.com> --------- Signed-off-by: politerealism <burdcat17@gmail.com>
OpenShell supervisor
The supervisor loads and reconciles policy, maintains provider credentials, applies network and MCP inspection, and drives the admitted isolation backend through attachment, confirmation, and workload start.
Backend startup
The public run_sandbox entry point selects the OpenShell Sandbox Protocol backend and collects its startup inputs into a private SandboxRunConfig. Shared startup receives that config and the trusted backend setup separately. The backend_setup module owns that backend's launch-data decoder, workload policy discovery, and client construction. Descriptor contents cannot select an implementation.
Shared startup checks the admitted backend name before passing the opaque payload to its decoder. It then compares the decoded sandbox, session, and runtime generation with the trusted launch inputs before installing credentials or discovering workload policy. A mismatch stops startup.
The built-in decoder also carries the VM driver's fixed workload identity into shared policy validation. Startup and later policy updates must reject selectors that conflict with that identity. Other launch descriptors do not enable this VM-specific check.
The supervisor admits policy and prepares credentials before constructing and attaching the selected client. It uses the isolation contract's BoundBoundary and ConfirmedBoundary directly: confirm the attached boundary, prepare network mediation, then start the workload. Backend implementations remain responsible for validating their native enforcement evidence through the isolation contract.
The client receives the supervisor's live provider state, bearer-token slot, and CA-path slot. Provider refresh, token rotation, and later CA publication must remain visible through those shared handles. Startup does not create independent copies of their current values.
The setup interface stays private to the supervisor. It adds no runtime backend registration, endpoint configuration, or public factory API. The public run_sandbox signature and standard backend selection remain unchanged.
The private startup result separates the backend transport payload from optional authenticated CONNECT listener settings. Shared networking starts the listener only after boundary attachment and confirmation; the supervisor owns policy evaluation, live credentials, and listener lifetime. These settings do not add a proxy hook to the isolation interface or the shared Sandbox Protocol descriptor.
Console logging
Diagnostics and OCSF shorthand share a bounded, nonblocking stderr writer. With ocsf_json_enabled=true, the same writer also receives timestamped OCSF-JSON records. Each formatter submits a complete line in one write so concurrent producers cannot interleave records in the queue. The 1,024-line queue drops new lines when full rather than waiting for stderr.
Console JSON is installed independently of optional file appenders and uses an INFO filter independent of the diagnostic filter. Its runtime enabled flag and target schema version are shared with the existing JSONL file layer. The supervisor retains the writer guards until shutdown. The gateway log push layer continues to emit shorthand only.
Safe runtime and parent liveness
The supervisor drives the safe isolation-backend contract and network/policy orchestration. Its library and executable forbid unsafe code.
For a VM host supervisor, the VM driver passes its parent-liveness pipe as stdin
and sets the private --parent-liveness-stdin flag. A dedicated reader terminates
the supervisor when the driver closes its write endpoint or exits. The driver
protects both original pipe endpoints with close-on-exec and lets Stdio transfer
the read endpoint to the child's stdin. The supervisor uses the standard stdin
reader and does not adopt a numeric raw descriptor. This mode reserves stdin for
liveness; sandbox workload input travels over the boundary protocol.
Portable supervisor access
The supervisor consumes the shared isolation backend contract. Its gateway session, canonical process attachment, and TCP readiness do not require SSH or a Unix host.
TCP readiness opens only after the gateway accepts the authenticated session. Session loss closes readiness; accepted reconnection restores it. Dropping the readiness guard closes the listener. A requested Unix readiness endpoint fails explicitly on unsupported hosts, even before session acceptance.
The optional Unix SSH adapter remains separate from boundary-based process I/O.
The process-access multiplexer consumes boundary-provided streams and delegates
terminal resizing and signals through the existing isolation contract. It does
not own local PIDs, PTYs, or process-group signaling; native process operations
belong to the sandbox or isolation backend. Signals use BoundarySignal.
These portable control-plane foundations do not qualify a platform isolation backend or enable a Windows workload runtime.