feat(soak): add 7-day soak harness (engine.soak.toml, runner, snapshots, runbook)#171
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feat(soak): add 7-day soak harness (engine.soak.toml, runner, snapshots, runbook)#171lgahdl wants to merge 6 commits into
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…ts, runbook) Adds the tooling gap that was blocking #65/#66 grant evidence: - engine.soak.toml: soak-tuned config (info log level, separate state_dir) - scripts/soak-run.sh: launches engine + hourly metrics snapshot loop - scripts/soak-finish.sh: graceful shutdown, stops snapshot loop, final metrics - docs/operations/soak-runbook.md: operator guide with evidence artifact map M1 (24h), M2 (48h), and M4 (7-day) evidence artifacts fall out of the hourly snapshot loop automatically. Closes nullislabs#122 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add '# shellcheck shell=bash' + file-level SC2034 disable to lib.sh (constants are used by callers that source the file; shellcheck cannot follow the source chain without explicit directives) - Replace ls glob with find in soak-finish.sh snapshot count (SC2012) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- disown snapshot loop subshell after launch so it survives SSH disconnect — a naked () & dies when the terminal session ends, which would silently drop all hourly evidence snapshots - supervisor-ready regex: replace [^}]* with .* to avoid stopping at nested JSON object braces (e.g. tracing span fields); add [^0-9] anchors to avoid matching "modules":50 as "modules":5 - rpc_url substitution regex: allow inline comments on the section header ([chains.11155111] # Sepolia) by using [^\n]* instead of a bare \n after the bracket - add scripts/.state.soak to .gitignore alongside scripts/.state Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…idecar
The 160-line soak-run.sh + soak-finish.sh are replaced by two Docker
services in docker-compose.soak.yml:
engine — nexum binary with restart: unless-stopped and Docker's
json-file log rotation (500 MB × 14 ≈ 7 GB cap), removing
the nohup/disown/PID-file/regex-supervisor-ready dance.
snapshotter — Alpine container running scripts/soak-snapshot.sh (10
lines): captures metrics-start on boot, then hourly
metrics-snap-*.txt to the bind-mounted evidence directory.
engine.soak.docker.toml is a new Docker-compatible variant of
engine.soak.toml: Docker paths (/opt/shepherd/modules/), SEPOLIA_RPC_URL
env-var substitution (no render_soak_config Python step needed), and
bind_addr = "0.0.0.0:9100" so the snapshotter reaches it via the Docker
bridge network.
- Delete scripts/soak-run.sh, scripts/soak-finish.sh
- Remove soak state helpers from scripts/lib.sh (render_soak_config,
SOAK_STATE_FILE and the write/clear/value functions)
- Rewrite docs/operations/soak-runbook.md for the docker-compose workflow
- engine.soak.toml kept for direct-binary use; updated comment
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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The PR description still mentions Maybe worth a quick pass on the description to match the current state of the branch so reviewers aren't confused looking for files that aren't there. |
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The header comment in Wonder if an operator trying the non-Docker path would get stuck here. Maybe update the comment to reflect the current setup, or note that the non-Docker path is deprecated in favor of |
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There are gitignore rules for the e2e reports directory ( Wonder if a |
jean-neiverth
approved these changes
Jul 10, 2026
…evidence
Review follow-ups before the July 14-17 soak window:
- soak-snapshot.sh: BusyBox wget instead of an apk install at every
container (re)start; scrape via temp file + mv so a failed scrape
never leaves an empty evidence file; retry the baseline scrape so a
transient hiccup cannot exit the script and write a spurious
metrics-start file on the restart-policy rerun.
- runbook pre-flight: ghcr.io/nullislabs/shepherd:latest is only
published from main and does not exist yet - the image step now
mandates either a local build pinned to the soak commit or a CI
workflow_dispatch publish, and records the image digest in the
evidence set.
- runbook monitoring: the per-module jq filter was doubly broken
(compose log prefixes are not JSON; fields are flattened to top
level, not under .fields). Replaced with a working docker logs +
.message filter.
- evidence: hourly host-side docker stats loop (memory.log - the
exporter has no process collector, so nothing else proves memory
stayed flat) and a docker inspect restart record (RestartCount /
OOMKilled) so a 3am crash-restart is visible in the artifact set
instead of surfacing as unexplained counter resets.
- compose: ${SEPOLIA_RPC_URL:?} guard so `up` refuses fast instead of
booting an engine that crash-loops on the unresolvable config var.
- engine.soak.toml: header referenced a render_soak_config helper that
does not exist; replaced with the real manual-run commands (the
engine substitutes ${VAR} natively). Dropped the dead
SOAK_REPORTS_DIR from lib.sh.
- runbook restart section: both services auto-restart; corrected the
stale shell-runner-era semantics and the engine.log guidance
(compress, do not commit ~7 GB into the repo).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TfSsJPYDQ1GQGbnSVFxATx
Smoke test finding: the Prometheus exporter serves a 200 with an empty body until the first counter increments after boot, so the baseline scrape landed as a 0-byte file. Require a non-empty body before accepting any snapshot - the retry loop then holds until the first real metrics render. Smoke-tested: local image build + compose up; engine healthy, modules dispatching (14 eth_calls at t+80s), metrics-start-*.txt written with 4 KB of real counter values. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TfSsJPYDQ1GQGbnSVFxATx
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Summary
Adds the tooling gap blocking #65/#66 grant evidence (hard gate: soak running clean by Jul 21). The harness pivoted from shell-runner scripts to Docker Compose during review — Docker owns crash recovery and log rotation instead of hand-rolled supervision:
docker-compose.soak.yml— two services: engine (restart: unless-stopped, SIGINT graceful stop, json-file log rotation capped at ~7 GB, 2 GB / 2 CPU limits, healthcheck on the metrics port,${SEPOLIA_RPC_URL:?}fail-fast guard) and snapshotter (Alpine sidecar).scripts/soak-snapshot.sh— 10-line BusyBox sidecar: baseline scrape with retry, then hourly/metricssnapshots written atomically (temp file +mv, so a failed scrape never leaves an empty evidence file).engine.soak.docker.toml/engine.soak.toml— Docker and manual-run configs:infolog level,data/soakstate dir, same 5 modules as e2e. The manual config documents the real build +nexum --engine-configcommands.docs/operations/soak-runbook.md— operator guide: pre-flight checklist (including the mandatory image pin —ghcr.io/nullislabs/shepherd:latestis only published frommainand does not exist yet; build locally orgh workflow run docker.yml --ref develop), start/stop/monitor commands, evidence artifact table (M1/M2/M4), troubleshooting.docker statsmemory log (no process collector in the exporter, so nothing else proves memory stayed flat),docker inspectrestart record (RestartCount/OOMKilled), image digest pin, compressed engine log.Closes #122
Test plan
docker compose -f docker-compose.soak.yml config— valid; refuses with a clear error whenSEPOLIA_RPC_URLis unsetshellcheck scripts/soak-snapshot.sh— cleandocker build+up, healthcheck green,metrics-startfile written) — see review threadAI disclosure
Harness reviewed and hardened with Claude Code.