11 new test cases in test_state_reliability.py covering:
- atomic_write_json: produces valid JSON, no .tmp left behind, overwrites,
works with nested structures
- _load_actual_state: returns False on empty / truncated file, returns True
on valid files, preserves last-known-good state across a parse failure
- reconcile: empty/truncated services.json or incidents.json generates zero
actions (skip-cycle semantics proven end-to-end)
- healthy service with valid world state generates no spurious action
All 32 tests (11 new + 21 existing) pass.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Two independent fixes for the false-alarm storm caused by race-condition
reads of truncated world state files:
1. Atomic writes: _atomic_write_json (write→fsync→os.replace) replaces
all bare open('w')+json.dump calls in supervisor and executor, so the
action-file pipeline is never visible in a half-written state.
2. Resilient loader: _load_actual_state now returns False when any world
state file fails to parse (empty or truncated mid-write). reconcile()
skips the entire drift check on False instead of treating {} as "all
services missing". actual_state retains its last-known-good values so
a single bad cycle does not wipe accumulated context.
Before: parse error → raw[key]={} → all desired services missing →
wall of redeploy actions → drift_resolved_auto churn on next cycle.
After: parse error → WARNING logged → cycle skipped → no actions.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
operator_ui.py called .replace() on last_update without checking type —
an integer value (written by the materializer) raised AttributeError and
silently fell back to os.path.getmtime(), which was stuck at 5/29 after a
deploy with preserved timestamps. web.py had the same class of bug but
worse: it unconditionally replaced last_update with mtime, ignoring the
JSON field entirely. Both now branch on isinstance(str) and cast numeric
values directly to float, with mtime only as a last-resort fallback.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Previously _cancel_resolved_pending_actions() only cancelled actions where
the service became healthy. This left orphaned actions when a service was
removed from services.yaml or marked monitor:false.
Add Case 1: if the action's svc_key is no longer in desired_state (either
removed entirely or skipped due to monitor:false), cancel with reason
service_removed_from_desired_state.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
When a service becomes healthy (node-agent emits service_healthy → observer
updates services.json), any previously queued redeploy/container_restart
action is stale. Without cleanup, the queue accumulates old actions that
require manual rejection.
_cancel_resolved_pending_actions() runs after each reconcile cycle:
- Reads all pending/*.json with type=redeploy or container_restart
- If the service is now healthy in actual_state, moves action to cancelled/
with reason=drift_resolved_auto
- Only pending actions are touched; approved/running are left to the operator
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Root cause of stale data:
- node_agent.py falls back to socket.gethostname() when NODE_NAME is unset.
Inside a Docker container this returns the 12-char container ID (e.g.
'be17cb6eb0f6'), not the host name. Observer ingested those events and
created ghost entries in world/nodes.json that never expired.
observer.py:
- _prune_stale_world(): removes node/service/incident entries for nodes absent
from topology inventory; called on every run_once() cycle (both new-events
and idle paths). Resolved incidents older than 7 days are also aged out.
- _save_world(): now writes node_count and service_count to runtime-summary.json
so the Dashboard's System Overview cards show real numbers instead of undefined.
operator_ui.py:
- current_nodes/services/deployments/incidents(): the observer stores world state
as keyed dicts; the frontend calls .map() which requires an array. All four
functions now convert the dict to a properly-shaped list. Each item has the
fields the Nodes, Services, Topology, Deployments, and Correlation views expect
(hostname, health, capabilities, desired_state, dependencies, etc.).
- current_incidents(): synthesises a human-readable 'message' field from node +
service + trigger_type (observer does not store one; dashboard showed undefined).
- current_events(): adds a 24 h time filter (EVENTS_MAX_AGE_HOURS env var,
default 24). Without this, every event file ever written was returned,
including events from ghost-node deploys.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- observer: store trigger_type on incidents for supervisor routing
- supervisor: route containers_not_running/mqtt_unreachable to container_restart instead of redeploy
- supervisor: fix node alias normalization via NODE_ALIAS_MAP
- supervisor: fix pending action dedup (scan by content not filename)
- executor: implement container_restart via SSH docker restart with retry
- control-plane override: configure NODE_ALIAS_MAP for production
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Timestamp in reconcile-{ts}-{node}-{service} meant dedup guard never fired.
Switch to reconcile-{node}-{service} and check pending/approved/running states.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Oskar Kapala
