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sandbox-store: write the portability assignment renderers' statements whole and delete the renderers - #1406
pplx-space-sandbox-portability still rendered SET lists for sandboxes and for its executions and port exposures. The data-store rules forbid that: a statement stays whole at its query site, and only a whole portability boolean predicate may be interpolated. For example, repair::revert_failed_to_suspended built SET {sandbox_assignments}, restore_lease_expires_at = NULL, ..., so the text Postgres received could not be read at the query site.
Merging this:
Writes each such statement out in full at its query site:
cluster controller: pod-less drain give-up, started repair and failed-restorable repair stores.
Builds a statement once in a LazyLock<String> where its only interpolations are portability predicates, or the constant repair row-state guards.
Splits pod_tracking's started recovery into two whole statements, one per proof shape.
Leaves the orphan and repair guard fragments interpolated; the reconciler's scans compose the same fragments.
Deletes the renderers and the types only they used: clear_/write_/publish_clear_or_preserve_current_local_artifact_marker_assignments, suspended_/quarantined_k8s_finalization_sql, SuspendedK8sFinalizationSql, SuspendedTargetNodeAssignment and the execution and port-exposure assignment helpers.
Changes drain::revert_pod_less_resident_to_suspended to return bool instead of the renderer.
Updates the doc comments that named deleted functions, including node_local_backup_pending.rs. Deletes the sandbox_writes ratchet's two renderer-call patterns, which match nothing once the renderers are gone, and the comment text about renderers in ARCHITECTURE.toml and architecture-baseline.toml. The statement-head pattern is unchanged and the deleted patterns matched nothing, so no baseline cap changes.
Changed test expectations: none.
Validation
Byte-identity: I ran the touched crates and their callers against a Postgres with log_statement=all, once on origin/main and once on this head, and compared the statements by sql! module path with the locator line number removed. A temporary test, not committed, ran the two OrphanGuard::LegacyDeleting statements, which no existing test reaches. It compared 18 statement texts and all 18 match exactly:
drain pod-less revert (1);
ingest::finalize_suspended (1);
orphan recover and quarantine, each for PodName, Forgotten and LegacyDeleting (6);
pod_tracking ExecutionRetired and FailedRecovery (2);
repair started and failed (2);
suspend committed-artifact and missing-pod (2);
port-exposure reset in both repair stores (2);
give-up execution retire and port-exposure reset (2).
The nine touched modules issued the same 59 distinct statements on both sides. Across the whole log (96,614 statements on the base, 96,647 on the head, 8,042 distinct on each), the only differences were run-generated UUIDs, test database names, prepared-statement names and timestamps.
cargo fmt --all -- --check, scripts/check-rust-error-policy.sh and cargo clippy --workspace --locked --all-targets --all-features -- -D warnings pass. cargo arch reports no findings, also with --base-baseline, --renames and --base-architecture from origin/main.
SPACE_CI_REQUIRE_TEST_DEPS=1 cargo nextest run --all-features on sandbox-store, sandbox-portability, cluster-controller-server, internal-api-server, api, snapshot-store and snapshot-retention: 4025 passed against a real Postgres, 0 dependency skips. The one skipped test is the ignored opt-in benchmark.
Kind: a fresh cluster from an earlier revision with the same patch (infra/space/kind/scripts/up.sh, otel telemetry) came up in 514 s. scripts/tests/smoke-kind-typed.sh all, with CI's admin-token and cold-receipt setup, took 4031 s. The native surface passed 42/42. The ECW surface passed 90/91: ecw.guest_mptcp_segments_dropped hit an infrastructure error at sandbox create (guest command readiness timed out, node-mgr probe Unavailable) and passed when rerun once. Six console-UI scenarios were skipped because Playwright/Chromium isn't installed.
At this head, rebased onto main with the patch unchanged (sorted +/- lines identical): fmt, ci/scripts/run-archcheck.sh (no findings) and workspace clippy -D warnings pass. SPACE_CI_REQUIRE_TEST_DEPS=1 cargo nextest run --all-features on cluster-controller-server, internal-api-server, sandbox-portability and sandbox-store: 1750 passed, 0 skipped. ci/scripts/check-test-durations.py passes, and no test this PR touches takes over 2 s.
Severity and risk
Severity: does not apply; this is a structural cleanup with no behaviour change.
Risk: low. The SQL text is unchanged, so the only risk is in the Rust control flow around it, mainly bool replacing Option<SuspendedK8sFinalizationSql> in the pod-less give-up. Roll back by reverting the commit.
Mixed versions: there is no schema or wire change. Old and new binaries send the same statements, apart from sql! locator comments.
Not covered
The orphan statements (orphan::recover_orphan_to_suspended and orphan::quarantine_orphan) still interpolate the classification guard's FROM items (joined to the active execution for the pod-name guard), its predicate and its FOR UPDATE OF targets, which the reconciler's plan read composes too. quarantine_orphan also picks its artifact predicate per call (TRUE for a legacy deleting row, otherwise the negated restart eligibility). Because the guard varies per call, both statements are still built with format! on every call. Writing them as one whole statement per guard is a separate change. The repair row-state guards stay interpolated as the existing fragments docs/rust/space-conventions.md describes.
AI assistance: Claude Code drafted the code changes, the byte-identity harness and this description.
No actionable comments were generated in the recent review.
Walkthrough
Sandbox finalization and recovery paths now define SQL updates locally instead of using shared portability renderers. These statements update sandbox lifecycle and placement, retire executions, reset open port exposures, and preserve or clear artifact markers under existing conditions. The pod-less revert function now returns a boolean, which its caller uses to decide whether to continue the transaction. The sandbox_writes rule now checks SQL statement heads targeting sandboxes and no longer matches renderer calls.
Possibly related PRs
perplexityai/SPACE#1426: Changes the pod-less node-drain recovery transaction, which this PR also updates.
perplexityai/SPACE#1222: Changes the architecture rules and sandbox_writes configuration that this PR edits.
perplexityai/SPACE#1380: Validates the suspended sandbox checkpoint artifact using current artifact marker state.
Merge Risk: Minimal · up to ef9e9
This change moves SQL construction for sandbox suspend, recovery and revert paths into the store modules without changing the statements they issue. The checked statements keep the same lifecycle, execution-retirement, port-exposure and artifact-marker behavior and the same guards. No concrete merge-blocking risk was found.
Security architecture risk: Low · up to ef9e9
The inspected changes preserve existing identity checks, guarded updates and cleanup ordering. No introduced security weakness was identified, but the complete publication transaction and deployed access controls were not independently verified.
Retained concerns
No architecture-level concerns identified.
Security review details
Security Blast Radius
inferred — The sensitive outcomes remain control-plane writes to sandbox lifecycle and artifact identity, associated executions, exposure observations and cleanup receipts. Inspected controller repair callers obtain sandbox IDs from internal reconciliation candidates, while node-published candidates are restricted by active-node assignment. This does not establish the scope of deployed database credentials.
Trust Boundaries and Controls
observed — Node reports pass through a candidate selector requiring the reporting node to own the active assignment and locking the sandbox row. Artifact-bearing finalization additionally requires matching execution identity before retiring the execution and admitting the candidate. The base-to-head replacement retains this finalizer check rather than broadening report authority.
Resilience and Maintainability Implications
observed — Drain recovery retains node, sandbox and execution locks, generation revalidation, rollback on failed eligibility, and one commit after all cleanup. Failed-restorable repair retains expired-lease and inactive-execution guards and commits projection cleanup and exposure reset with the successful revert. These inspected sequences preserve failure containment rather than exposing intermediate committed lifecycle states.
Pre-merge checks: 5
Check name
Status
Explanation
Title check
The title uses the lowercase area prefix "sandbox-store:" followed by a lowercase summary, with no trailing period, ticket IDs, or links. It names the main change: the portability assignment renderers…
Description Follows The Pr Template
The description contains all required sections and content: ## Summary explains what merging the change does; ## Validation lists commands, tests, and results; ## Severity and risk states that s…
Bug Fixes Name A Regression Test
The diff shows a structural SQL-construction cleanup. It replaces renderer-generated assignments with whole statements, caches fixed queries, and changes a renderer return value to bool; it does not i…
Weakened Safeguards Are Justified
No unjustified safeguard weakening is present. The only guard change removes two obsolete renderer-call patterns from ARCHITECTURE.toml; the PR description gives a specific reason: the renderers wer…
Public-Safe Content
No credentials, tokens, private keys, internal URLs or hostnames, cloud identifiers, personal absolute paths, production logs, or incident details appear in the title, description, or reviewed diff. T…
Full details: Title check
Explanation
The title uses the lowercase area prefix "sandbox-store:" followed by a lowercase summary, with no trailing period, ticket IDs, or links. It names the main change: the portability assignment renderers' statements are written out whole and the renderers are deleted. The changeset matches this, since the renderers and their types are removed and the SQL is inlined across sandbox-store and related controller stores. Code identifiers keep their case per the requirements, and the title is 100 characters, which is within the usual limit.
Full details: Description Follows The Pr Template
Explanation
The description contains all required sections and content: ## Summary explains what merging the change does; ## Validation lists commands, tests, and results; ## Severity and risk states that severity does not apply and gives low risk; and the line AI assistance: identifies Claude Code and the drafted or changed parts.
Full details: Bug Fixes Name A Regression Test
Explanation
The diff shows a structural SQL-construction cleanup. It replaces renderer-generated assignments with whole statements, caches fixed queries, and changes a renderer return value to bool; it does not introduce an application behavior bug fix. The validation describes byte-identical SQL and the PR states no behavior change. The regression-test requirement therefore does not apply.
Full details: Weakened Safeguards Are Justified
Explanation
No unjustified safeguard weakening is present. The only guard change removes two obsolete renderer-call patterns from ARCHITECTURE.toml; the PR description gives a specific reason: the renderers were deleted and the patterns matched nothing. The sandbox_writes required modes and allowlist remain unchanged at ARCHITECTURE.toml:199-232, and architecture-baseline.toml:46-51 removes no baseline entries. The diff changes no test, Cargo lint, CI, or nextest configuration files.
Full details: Public-Safe Content
Explanation
No credentials, tokens, private keys, internal URLs or hostnames, cloud identifiers, personal absolute paths, production logs, or incident details appear in the title, description, or reviewed diff. The validation section reports test measurements only and does not expose sensitive values.
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… whole and delete the renderers
pplx-space-sandbox-portability still rendered SET-list fragments for the
sandboxes row, its executions and its port exposures
(clear/write/publish_clear_or_preserve_current_local_artifact_marker_assignments,
suspended_k8s_finalization_sql and quarantined_k8s_finalization_sql with
SuspendedK8sFinalizationSql and SuspendedTargetNodeAssignment). The
data-store rules keep a statement whole at its query site and allow only a
whole portability boolean predicate to be interpolated.
Each statement that interpolated a renderer now spells it out at its query
site in sandbox-store (drain, ingest, orphan, pod_tracking, repair, suspend)
and in the cluster controller's pod-less drain give-up and started and
failed-restorable repair stores. Statements whose only interpolations are
portability predicates are built once in a LazyLock; the two proof shapes of
pod_tracking's started recovery are two whole statements. The orphan guard
and repair row-state guard fragments, which the reconciler scans also use,
stay as they are. drain::revert_pod_less_resident_to_suspended returns
whether the row flipped instead of the renderer.
The sandbox_writes ratchet drops its two renderer-call patterns, which match
nothing once the renderers are gone, and its comments about renderers; the
statement-head pattern and every baseline cap are unchanged.
Every statement text is unchanged: a Postgres statement log of the touched
crates' tests on the base and on this change records the same statements,
apart from sql! locator line numbers.
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Summary
pplx-space-sandbox-portabilitystill rendered SET lists forsandboxesand for its executions and port exposures. The data-store rules forbid that: a statement stays whole at its query site, and only a whole portability boolean predicate may be interpolated. For example,repair::revert_failed_to_suspendedbuiltSET {sandbox_assignments}, restore_lease_expires_at = NULL, ..., so the text Postgres received could not be read at the query site.Merging this:
drain,ingest,orphan,pod_tracking,repair,suspend;LazyLock<String>where its only interpolations are portability predicates, or the constant repair row-state guards.pod_tracking's started recovery into two whole statements, one per proof shape.clear_/write_/publish_clear_or_preserve_current_local_artifact_marker_assignments,suspended_/quarantined_k8s_finalization_sql,SuspendedK8sFinalizationSql,SuspendedTargetNodeAssignmentand the execution and port-exposure assignment helpers.drain::revert_pod_less_resident_to_suspendedto returnboolinstead of the renderer.node_local_backup_pending.rs. Deletes thesandbox_writesratchet's two renderer-call patterns, which match nothing once the renderers are gone, and the comment text about renderers inARCHITECTURE.tomlandarchitecture-baseline.toml. The statement-head pattern is unchanged and the deleted patterns matched nothing, so no baseline cap changes.Changed test expectations: none.
Validation
Byte-identity: I ran the touched crates and their callers against a Postgres with
log_statement=all, once onorigin/mainand once on this head, and compared the statements bysql!module path with the locator line number removed. A temporary test, not committed, ran the twoOrphanGuard::LegacyDeletingstatements, which no existing test reaches. It compared 18 statement texts and all 18 match exactly:drainpod-less revert (1);ingest::finalize_suspended(1);orphanrecover and quarantine, each for PodName, Forgotten and LegacyDeleting (6);pod_trackingExecutionRetired and FailedRecovery (2);repairstarted and failed (2);suspendcommitted-artifact and missing-pod (2);The nine touched modules issued the same 59 distinct statements on both sides. Across the whole log (96,614 statements on the base, 96,647 on the head, 8,042 distinct on each), the only differences were run-generated UUIDs, test database names, prepared-statement names and timestamps.
Mutation: changing
ingest'starget_node_id = COALESCE(s.target_node_id, s.active_node_id)tos.target_node_idfailspublished_state_tests::lifecycle_writers::{ready_backup_projects_suspended_only_out_of_running_and_restoring_lifecycles, suspended_report_projects_only_out_of_running_and_restoring_lifecycles}.cargo fmt --all -- --check,scripts/check-rust-error-policy.shandcargo clippy --workspace --locked --all-targets --all-features -- -D warningspass.cargo archreports no findings, also with--base-baseline,--renamesand--base-architecturefromorigin/main.SPACE_CI_REQUIRE_TEST_DEPS=1 cargo nextest run --all-featureson sandbox-store, sandbox-portability, cluster-controller-server, internal-api-server, api, snapshot-store and snapshot-retention: 4025 passed against a real Postgres, 0 dependency skips. The one skipped test is the ignored opt-in benchmark.Kind: a fresh cluster from an earlier revision with the same patch (
infra/space/kind/scripts/up.sh, otel telemetry) came up in 514 s.scripts/tests/smoke-kind-typed.sh all, with CI's admin-token and cold-receipt setup, took 4031 s. The native surface passed 42/42. The ECW surface passed 90/91:ecw.guest_mptcp_segments_droppedhit an infrastructure error at sandbox create (guest command readiness timed out, node-mgr probe Unavailable) and passed when rerun once. Six console-UI scenarios were skipped because Playwright/Chromium isn't installed.At this head, rebased onto
mainwith the patch unchanged (sorted+/-lines identical): fmt,ci/scripts/run-archcheck.sh(no findings) and workspace clippy-D warningspass.SPACE_CI_REQUIRE_TEST_DEPS=1 cargo nextest run --all-featureson cluster-controller-server, internal-api-server, sandbox-portability and sandbox-store: 1750 passed, 0 skipped.ci/scripts/check-test-durations.pypasses, and no test this PR touches takes over 2 s.Severity and risk
Severity: does not apply; this is a structural cleanup with no behaviour change.
Risk: low. The SQL text is unchanged, so the only risk is in the Rust control flow around it, mainly
boolreplacingOption<SuspendedK8sFinalizationSql>in the pod-less give-up. Roll back by reverting the commit.Mixed versions: there is no schema or wire change. Old and new binaries send the same statements, apart from
sql!locator comments.Not covered
The orphan statements (
orphan::recover_orphan_to_suspendedandorphan::quarantine_orphan) still interpolate the classification guard'sFROMitems (joined to the active execution for the pod-name guard), its predicate and itsFOR UPDATE OFtargets, which the reconciler's plan read composes too.quarantine_orphanalso picks its artifact predicate per call (TRUEfor a legacydeletingrow, otherwise the negated restart eligibility). Because the guard varies per call, both statements are still built withformat!on every call. Writing them as one whole statement per guard is a separate change. The repair row-state guards stay interpolated as the existing fragmentsdocs/rust/space-conventions.mddescribes.AI assistance: Claude Code drafted the code changes, the byte-identity harness and this description.