feat(isolation): split supervisor and sandbox runtimes

.github/actions/build-docker-image/action.yml

@@ -11,6 +11,10 @@ inputs:
   binary:
     description: Binary staged in the Docker build context
     required: true
+  additional-binary:
+    description: Optional second binary staged in the Docker build context
+    required: false
+    default: ""
   triple:
     description: Binary artifact target triple
     required: true
@@ -53,6 +57,21 @@ runs:
         INPUTS_BINARY: ${{ inputs.binary }}
         INPUTS_ARCH: ${{ inputs.arch }}
 
+    - name: Download ${{ inputs.additional-binary }}
+      if: inputs.additional-binary != ''
+      uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+      with:
+        name: ${{ inputs.additional-binary }}-${{ inputs.triple }}
+        path: additional-artifact
+
+    - name: Stage ${{ inputs.additional-binary }}
+      if: inputs.additional-binary != ''
+      shell: bash
+      run: install -Dm0755 additional-artifact/${INPUTS_ADDITIONAL_BINARY} deploy/docker/.build/prebuilt-binaries/${INPUTS_ARCH}/${INPUTS_ADDITIONAL_BINARY}
+      env:
+        INPUTS_ADDITIONAL_BINARY: ${{ inputs.additional-binary }}
+        INPUTS_ARCH: ${{ inputs.arch }}
+
     - name: Build ${{ inputs.component }} image
       shell: bash
       env:

.github/actions/check-job-results/action.yml

@@ -8,6 +8,10 @@ inputs:
   results:
     description: JSON-encoded GitHub Actions needs context
     required: true
+  allowed-skipped-jobs:
+    description: Comma-separated job IDs that may be skipped but must not fail
+    required: false
+    default: ""
 
 runs:
   using: composite
@@ -16,12 +20,20 @@ runs:
       shell: bash
       env:
         JOB_RESULTS: ${{ inputs.results }}
+        ALLOWED_SKIPPED_JOBS: ${{ inputs.allowed-skipped-jobs }}
       run: |
         set -euo pipefail
         failures="$(
-          jq -r '
+          jq -r --arg allowed_skipped "$ALLOWED_SKIPPED_JOBS" '
+            ($allowed_skipped | split(",") | map(select(length > 0))) as $allowed_skipped_jobs
+            |
             to_entries[]
+            | . as $job
             | select(.value.result != "success")
+            | select(
+                .value.result != "skipped"
+                or ($allowed_skipped_jobs | index($job.key)) == null
+              )
             | "\(.key) concluded \(.value.result)"
           ' <<< "$JOB_RESULTS"
         )"

.github/workflows/branch-checks.yml

@@ -179,20 +179,20 @@ jobs:
           tasks/scripts/verify-telemetry-compiled-out.sh present target/debug/openshell-gateway
           cargo build -p openshell-gateway --bin openshell-gateway --no-default-features --features defaults-without-telemetry
           tasks/scripts/verify-telemetry-compiled-out.sh absent target/debug/openshell-gateway
-          cargo build -p openshell-sandbox --bin openshell-sandbox --no-default-features --features defaults-without-telemetry
-          tasks/scripts/verify-telemetry-compiled-out.sh absent target/debug/openshell-sandbox
+          cargo build -p openshell-supervisor --bin openshell-supervisor --no-default-features --features defaults-without-telemetry
+          tasks/scripts/verify-telemetry-compiled-out.sh absent target/debug/openshell-supervisor
 
       - name: Verify the defaults-without-telemetry feature alias tracks the default feature set
         run: tasks/scripts/verify-defaults-without-telemetry.sh
 
       - name: Verify system CA roots build mode compiles and excludes bundled Mozilla roots
         run: |
-          cargo check -p openshell-sandbox --all-targets --no-default-features --features system-ca-roots
-          if cargo tree -p openshell-sandbox -i webpki-roots --no-default-features --features system-ca-roots 2>/dev/null | grep -q webpki-roots; then
+          cargo check -p openshell-supervisor --all-targets --no-default-features --features system-ca-roots
+          if cargo tree -p openshell-supervisor -i webpki-roots --no-default-features --features system-ca-roots 2>/dev/null | grep -q webpki-roots; then
             echo "ERROR: webpki-roots found in system CA roots build" >&2
             exit 1
           fi
-          if cargo tree -p openshell-sandbox -i webpki-root-certs --no-default-features --features system-ca-roots 2>/dev/null | grep -q webpki-root-certs; then
+          if cargo tree -p openshell-supervisor -i webpki-root-certs --no-default-features --features system-ca-roots 2>/dev/null | grep -q webpki-root-certs; then
             echo "ERROR: webpki-root-certs found in system CA roots build" >&2
             exit 1
           fi

.github/workflows/branch-e2e.yml

@@ -28,6 +28,11 @@ jobs:
       run_kubernetes_ha_e2e: ${{ steps.labels.outputs.run_kubernetes_ha_e2e }}
       run_kubernetes_credential_drivers_e2e: ${{ steps.labels.outputs.run_kubernetes_credential_drivers_e2e }}
       run_any_e2e: ${{ steps.labels.outputs.run_any_e2e }}
+      run_docker_e2e: ${{ steps.labels.outputs.run_docker_e2e }}
+      run_podman_e2e: ${{ steps.labels.outputs.run_podman_e2e }}
+      run_vm_e2e: ${{ steps.labels.outputs.run_vm_e2e }}
+      run_kubernetes_e2e: ${{ steps.labels.outputs.run_kubernetes_e2e }}
+      allowed_skipped_core_jobs: ${{ steps.labels.outputs.allowed_skipped_core_jobs }}
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - id: gate
@@ -68,12 +73,46 @@ jobs:
           else
             run_any_e2e=false
           fi
+
+          run_docker_e2e="$run_core_e2e"
+          run_podman_e2e="$run_core_e2e"
+          run_vm_e2e="$run_core_e2e"
+          run_kubernetes_e2e="$run_core_e2e"
+          allowed_skipped_core_jobs=""
+
+          # The RFC 0012 stack deliberately introduces the split runtime before
+          # migrating each driver. At those intermediate layers, run only the
+          # drivers whose isolation adapter is present. Before and after the
+          # stack this resolves to the complete legacy or migrated driver set.
+          if [ "$run_core_e2e" = "true" ] && [ -f crates/openshell-supervisor/Cargo.toml ]; then
+            if [ ! -f crates/openshell-driver-docker/src/isolation.rs ]; then
+              run_docker_e2e=false
+              allowed_skipped_core_jobs="docker-e2e,docker-external-driver-e2e"
+            fi
+            if [ ! -f crates/openshell-driver-podman/src/isolation.rs ]; then
+              run_podman_e2e=false
+              allowed_skipped_core_jobs="${allowed_skipped_core_jobs:+$allowed_skipped_core_jobs,}podman-e2e,podman-external-driver-e2e"
+            fi
+            if [ ! -f crates/openshell-driver-vm/src/isolation/mod.rs ]; then
+              run_vm_e2e=false
+              allowed_skipped_core_jobs="${allowed_skipped_core_jobs:+$allowed_skipped_core_jobs,}vm-e2e,vm-external-driver-e2e"
+            fi
+            if [ ! -f crates/openshell-driver-kubernetes/src/isolation.rs ]; then
+              run_kubernetes_e2e=false
+              allowed_skipped_core_jobs="${allowed_skipped_core_jobs:+$allowed_skipped_core_jobs,}kubernetes-e2e,kubernetes-external-driver-e2e,kubernetes-workspace-managed-e2e,kubernetes-workspace-operator-e2e"
+            fi
+          fi
           {
             echo "run_core_e2e=$run_core_e2e"
             echo "run_gpu_e2e=$run_gpu_e2e"
             echo "run_kubernetes_ha_e2e=$run_kubernetes_ha_e2e"
             echo "run_kubernetes_credential_drivers_e2e=$run_kubernetes_credential_drivers_e2e"
             echo "run_any_e2e=$run_any_e2e"
+            echo "run_docker_e2e=$run_docker_e2e"
+            echo "run_podman_e2e=$run_podman_e2e"
+            echo "run_vm_e2e=$run_vm_e2e"
+            echo "run_kubernetes_e2e=$run_kubernetes_e2e"
+            echo "allowed_skipped_core_jobs=$allowed_skipped_core_jobs"
           } >> "$GITHUB_OUTPUT"
 
   version:
@@ -262,12 +301,13 @@ jobs:
     with:
       component: supervisor
       binary: openshell-sandbox
+      additional-binary: openshell-supervisor
       target-suffix: unknown-linux-musl
     secrets: inherit
 
   docker-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway, build-supervisor-image]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_docker_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -280,7 +320,7 @@ jobs:
 
   podman-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway, build-supervisor-image]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_podman_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -292,7 +332,7 @@ jobs:
 
   vm-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway, build-vm-driver]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_vm_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -303,7 +343,7 @@ jobs:
 
   docker-external-driver-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway-plain, build-driver-docker, build-supervisor-image]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_docker_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -320,7 +360,7 @@ jobs:
 
   podman-external-driver-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway-plain, build-driver-podman, build-supervisor-image]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_podman_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -336,7 +376,7 @@ jobs:
 
   vm-external-driver-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway-plain, build-vm-driver]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_vm_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -362,7 +402,7 @@ jobs:
 
   kubernetes-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway-image, build-supervisor-image]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_kubernetes_e2e == 'true'
     strategy:
       fail-fast: false
       matrix:
@@ -393,7 +433,7 @@ jobs:
 
   kubernetes-workspace-managed-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway-image, build-supervisor-image]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_kubernetes_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -407,7 +447,7 @@ jobs:
 
   kubernetes-external-driver-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway-plain, build-driver-kubernetes, build-supervisor-image]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_kubernetes_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -424,7 +464,7 @@ jobs:
 
   kubernetes-workspace-operator-e2e:
     needs: [pr_metadata, build-cli, build-conformance, build-gateway-image, build-supervisor-image]
-    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_core_e2e == 'true'
+    if: needs.pr_metadata.outputs.should_run == 'true' && needs.pr_metadata.outputs.run_kubernetes_e2e == 'true'
     permissions:
       actions: read
       contents: read
@@ -477,6 +517,7 @@ jobs:
       - uses: ./.github/actions/check-job-results
         with:
           results: ${{ toJSON(needs) }}
+          allowed-skipped-jobs: ${{ needs.pr_metadata.outputs.allowed_skipped_core_jobs }}
 
   gpu-e2e-result:
     name: GPU E2E result

.github/workflows/build-sandbox-binaries.yml

@@ -32,13 +32,27 @@ jobs:
           - triple: x86_64-unknown-linux-musl
             runner: linux-amd64-cpu8
             dev_shell: .#devShells.x86_64-linux.musl
+            package: openshell-sandbox
+            binary: openshell-sandbox
+          - triple: x86_64-unknown-linux-musl
+            runner: linux-amd64-cpu8
+            dev_shell: .#devShells.x86_64-linux.musl
+            package: openshell-supervisor
+            binary: openshell-supervisor
+          - triple: aarch64-unknown-linux-musl
+            runner: linux-arm64-cpu8
+            dev_shell: .#devShells.aarch64-linux.musl
+            package: openshell-sandbox
+            binary: openshell-sandbox
           - triple: aarch64-unknown-linux-musl
             runner: linux-arm64-cpu8
             dev_shell: .#devShells.aarch64-linux.musl
+            package: openshell-supervisor
+            binary: openshell-supervisor
     uses: ./.github/workflows/build-binaries.yml
     with:
-      package: openshell-sandbox
-      binary: openshell-sandbox
+      package: ${{ matrix.package }}
+      binary: ${{ matrix.binary }}
       triple: ${{ matrix.triple }}
       runner: ${{ matrix.runner }}
       dev-shell: ${{ matrix.dev_shell }}

.github/workflows/docker-build.yml

@@ -12,6 +12,10 @@ on:
       binary:
         required: true
         type: string
+      additional-binary:
+        required: false
+        type: string
+        default: ""
       target-suffix:
         required: true
         type: string
@@ -54,6 +58,7 @@ jobs:
         with:
           component: ${{ inputs.component }}
           binary: ${{ inputs.binary }}
+          additional-binary: ${{ inputs['additional-binary'] }}
           triple: ${{ matrix.rust_arch }}-${{ inputs['target-suffix'] }}
           arch: ${{ matrix.arch }}
           platform: ${{ matrix.platform }}

.github/workflows/release-dev.yml

@@ -145,6 +145,7 @@ jobs:
     with:
       component: supervisor
       binary: openshell-sandbox
+      additional-binary: openshell-supervisor
       target-suffix: unknown-linux-musl
     secrets: inherit
 

.github/workflows/release-tag.yml

@@ -184,6 +184,7 @@ jobs:
     with:
       component: supervisor
       binary: openshell-sandbox
+      additional-binary: openshell-supervisor
       target-suffix: unknown-linux-musl
       image-tag: ${{ needs.compute-versions.outputs.source_sha }}
       checkout-ref: ${{ inputs.tag || github.ref }}

AGENTS.md

@@ -38,7 +38,8 @@ These pipelines connect skills into end-to-end workflows. Individual skill files
 | `crates/openshell-conformance/` | CLI conformance library | Reusable driver-agnostic scenarios and command runner |
 | `crates/openshell-conformance-cli/` | Conformance CLI | Distributable `list` and `run` entrypoint for gateway conformance |
 | `crates/openshell-server/` | Gateway server | Control-plane API, sandbox lifecycle, auth boundary |
-| `crates/openshell-sandbox/` | Sandbox runtime | Container supervision, policy-enforced egress routing |
+| `crates/openshell-sandbox/` | Sandbox runtime | Capability-free workload launcher, process identity, and seccomp-mediated I/O |
+| `crates/openshell-supervisor/` | Supervisor runtime | Gateway session, policy evaluation, credentials, and upstream networking |
 | `crates/openshell-binary-identity/` | Binary identity | Shared trusted procfs executable identity resolution for isolation backends |
 | `crates/openshell-isolation-interface/` | Isolation backend interface | RFC 0012 `IsolationBackend` trait + types; the supervisor-facing runtime contract for the boundary |
 | `crates/openshell-sandbox-backend/` | OpenShell sandbox backend | `OpenShellRuntimeBackend` plus the authenticated OpenShell Sandbox Protocol shared with `openshell-sandbox` |