Removal of buildkite and obsolute documents

.github/workflows/node_mainnet_tx_count_per_epoch.yaml

@@ -26,7 +26,6 @@ jobs:
 
       - name: Get the automated tests results
         env:
-          BUILDKITE_API_ACCESS_TOKEN: ${{ secrets.BUILDKITE_API_ACCESS_TOKEN }}
           AWS_DB_USERNAME: ${{ secrets.AWS_DB_USERNAME }}
           AWS_DB_PASS: ${{ secrets.AWS_DB_PASS }}
           AWS_DB_NAME: ${{ secrets.AWS_DB_NAME }}

README.md

@@ -2,16 +2,6 @@
 
 Sync tests for `cardano-node` and `cardano-db-sync`.
 
-## Documentation
-
-| Doc | Purpose |
-|-----|---------|
-| [`doc/LEARNING.md`](doc/LEARNING.md) | Index of learning and troubleshooting docs |
-| [`doc/SYNC_TEST_TROUBLESHOOTING.md`](doc/SYNC_TEST_TROUBLESHOOTING.md) | Buildkite, Postgres, Nix, stuck runs |
-| [`history.md`](history.md) | Branch timeline, incidents, owner conventions |
-| [`ISSUES_ENCOUNTERED.md`](ISSUES_ENCOUNTERED.md) | Known issues and fixes |
-| [`CURSOR_GUIDE.md`](CURSOR_GUIDE.md) | Style and where to save chat takeaways |
-
 ## Setup (local, without Nix)
 
 From the repository root:
@@ -105,15 +95,16 @@ pytest sync_tests/tests/ \
 When db-sync tests are included, `test_dbsync_artifacts.py` generates a comprehensive
 test results JSON and checks db-sync logs for errors and rollbacks.
 
-Current CI artifact behavior (Buildkite `artifact_paths`):
+GitHub Actions uploads these bundles when CI finishes:
 
 - `sync_logs.zip`
 - `sync_results.zip`
 - `monitor.zip`
 
 Bundle generation is CI-agnostic and keyed off standard CI variables
-(`CI`, `GITHUB_ACTIONS`, `BUILDKITE`, `GITLAB_CI`, `CIRCLECI`). The runner uploads
-the zips; local runs keep raw files under `test_workdir/` for debugging.
+(`CI`, `GITHUB_ACTIONS`, `GITLAB_CI`, `CIRCLECI`). The workflow uploads the zips
+with `actions/upload-artifact`; local runs keep raw files under `test_workdir/`
+for debugging.
 
 Results JSON includes enriched performance samples under `system_metrics`.
 
@@ -220,17 +211,3 @@ When using `test_workdir/cardano-db-sync/db_sync_performance_stats.json` (list o
 - **Available graphs**: CPU, RSS, Combined Resources
 - **Empty graphs**: Epoch Duration, Blocks per Epoch, Block Throughput
 - **Recommendation**: Use full `test_workdir/db_sync_results.json` for complete graph set
-
-## Document Index
-
-| Document | Purpose |
-|----------|---------|
-| [`doc/LEARNING.md`](doc/LEARNING.md) | Short index: doc map, high-signal facts, debugging entry point |
-| [`history.md`](history.md) | Branch timeline, local notes, *What Martin wants*, chat archive pointers |
-| [`doc/SYNC_TEST_TROUBLESHOOTING.md`](doc/SYNC_TEST_TROUBLESHOOTING.md) | Stuck runs, Buildkite, disk / Postgres, Nix `cardano-cli`, agent variance, pipeline YAML (§11) |
-| [`ISSUES_ENCOUNTERED.md`](ISSUES_ENCOUNTERED.md) | Short issue → fix index |
-| [`CURSOR_GUIDE.md`](CURSOR_GUIDE.md) | Style, pytest, Buildkite, where to save chat takeaways |
-| [`SYNC_TESTS_ARCHITECTURE.md`](SYNC_TESTS_ARCHITECTURE.md) | Module layout and pytest model |
-| [`SYNC_TESTS_COMPREHENSIVE_GUIDE.md`](SYNC_TESTS_COMPREHENSIVE_GUIDE.md) | Setup, CLI, markers, Buildkite env mapping |
-| [`NODE_SYNC_TEST_EXECUTION_FLOW.md`](NODE_SYNC_TEST_EXECUTION_FLOW.md) | Node-only pytest flow vs legacy script context |
-| [`REFRACTOR_PLAN.md`](REFRACTOR_PLAN.md) | Planned refactors |

sync_tests/scripts/postgres-start.sh

@@ -7,7 +7,7 @@ POSTGRES_DIR="${1:?"Need path to postgres dir"}"
 POSTGRES_DIR="$(readlink -m "$POSTGRES_DIR")"
 
 # Postgres refuses to start if the full Unix socket path exceeds ~107 bytes
-# (directory + "/.s.PGSQL.<port>"). Long CI workdirs (e.g. Buildkite) need a
+# (directory + "/.s.PGSQL.<port>"). Long CI workdirs need a
 # short -k directory; PGDATA stays under POSTGRES_DIR/data.
 _MAX_SOCK_PARENT_LEN=$((107 - 22))
 SOCKET_DIR="$POSTGRES_DIR"

sync_tests/tests/test_local_snapshot_restoration.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import datetime
+import json
 import logging
 import os
 import pathlib as pl
@@ -14,6 +15,7 @@
 from _pytest.fixtures import FixtureRequest
 
 from sync_tests.tests.conftest import SyncContext
+from sync_tests.tests.test_snapshot_creation import snapshot_created  # noqa: F401
 from sync_tests.utils import db_sync
 from sync_tests.utils import helpers
 from sync_tests.utils import node
@@ -30,12 +32,14 @@
 def local_restoration_result(
     request: FixtureRequest,
     sync_context: SyncContext,
+    snapshot_created: dict[str, tp.Any],  # noqa: ARG001,F811
 ) -> tp.Generator[dict[str, tp.Any], None, None]:
     """Restore db-sync from a local snapshot, sync, and yield result data.
 
     Args:
         request: Pytest fixture request for CLI options.
         sync_context: Shared session context.
+        snapshot_created: Fixture dependency that creates snapshot metadata first.
 
     Yields:
         Dict with restoration timing, tip data, and sync results.
@@ -75,7 +79,13 @@ def local_restoration_result(
     db_sync.create_database()
 
     # restore snapshot
-    snapshot_file = db_sync.get_buildkite_meta_data("snapshot_file")
+    snapshot_state_file = sync_context.workdir / "sync_session_state.json"
+    if not snapshot_state_file.exists():
+        msg = f"Snapshot metadata file not found: {snapshot_state_file}"
+        raise FileNotFoundError(msg)
+    with open(snapshot_state_file, encoding="utf-8") as state_fh:
+        snapshot_data = json.load(state_fh)
+    snapshot_file = snapshot_data["snapshot_file"]
     LOGGER.info("Restoring from snapshot: %s", snapshot_file)
     restoration_time = db_sync.restore_db_sync_from_snapshot(
         config,

sync_tests/tests/test_snapshot_creation.py

@@ -49,19 +49,20 @@ def snapshot_created(
     end_time = datetime.datetime.now(tz=datetime.timezone.utc)
 
     snapshot_file = stage_2_result
-    db_sync.set_buildkite_meta_data("snapshot_file", snapshot_file)
 
     creation_secs = int((end_time - start_time).total_seconds())
     LOGGER.info("Snapshot creation time: %d seconds", creation_secs)
 
-    return {
+    snapshot_data = {
         "snapshot_file": snapshot_file,
         "stage_2_cmd": stage_2_cmd,
         "stage_2_result": stage_2_result,
         "creation_time_secs": creation_secs,
         "start_time": start_time.strftime("%d/%m/%Y %H:%M:%S"),
         "end_time": end_time.strftime("%d/%m/%Y %H:%M:%S"),
     }
+    helpers.write_json_to_file(sync_context.workdir / "sync_session_state.json", snapshot_data)
+    return snapshot_data
 
 
 class TestSnapshotCreation: