Audience: engineers wiring argocd-notifications to OpenClaw on a remote Mac for manifest preflight and sync-failure JSON summaries. Docs: docs.openclaw.ai. Links: gateway hardening, Helm OCI matrix, Harbor webhook.
1
Why preflight: Argo exposes operationState, but kubeconform / digest checks still catch bad YAML before noisy pages.
2
Latency: return 202 fast, enqueue work, then call the Argo API and outbound URLs.
3
Uptime: use a rented Mac so TLS listeners and launchd probes stay continuous.

Decision matrix: GitOps signal vs OpenClaw handler

Signal Argo CD source Minimal Mac-side pattern
Sync failed on-sync-failed template, application.status.operationState Parse webhook JSON, fetch Application via REST, capture message + revision
Health degraded on-health-degraded, compare desired vs live Optional second API call for resources summary; cap payload size
Preflight gate Same revision Git as Argo kustomize build / helm template, kubeconform, optional crane manifest

Prerequisites: Node, tokens, and egress

Install Node.js 22 LTS, then follow docs.openclaw.ai for openclaw onboard (add --install-daemon when needed). Run openclaw doctor until warnings are understood; treat unresolved items as release blockers because they surface again under webhook load.

Read ~/.openclaw/openclaw.json for the gateway bind port—verify before scripting; 127.0.0.1:18789 is a frequent default. Prefer openclaw gateway status when available, else curl the documented /health path from the same user account launchd will use.

Set ARGOCD_SERVER to the UI hostname, issue a read-only ARGOCD_TOKEN (argocd account generate-token or SSO), store it in a mode-600 file for launchd. Allow HTTPS egress to Argo, image registries, and your summary sink. Document token rotation in the same runbook as your Argo RBAC reviews.

node -v
openclaw onboard
openclaw doctor
# Inspect bind address / port (paths vary by release)
test -f "$HOME/.openclaw/openclaw.json" && cat "$HOME/.openclaw/openclaw.json" | head

Webhook and gateway wiring checklist

Terminate TLS at Caddy or nginx, forward to 127.0.0.1, preserve raw bodies and Authorization for bearer or HMAC checks before JSON.parse. If you terminate client certificates at the edge, still authenticate the Argo payload independently so a replay from another client cannot bypass your ingest rules.

1
Register argocd-notifications service.webhook with a random HTTPS path for on-sync-failed / on-health-degraded.
2
Map template fields ({{.app.metadata.name}}, operationState.message, sync.revision) into your JSON schema.
3
Reply 202 after auth, enqueue async preflight/API work.
4
GET /api/v1/applications/{name} with the read token; capture operationState (and resources if needed).
5
Run preflight, build summary JSON (phase, revision, preflightExit, excerpt), POST outbound.
6
Replay: curl --data-binary @notify.json -H "Authorization: Bearer $INGEST_SECRET" "$WEBHOOK_URL".
curl -fsS --max-time 20 \
  -H "Authorization: Bearer ${ARGOCD_TOKEN}" \
  "${ARGOCD_SERVER}/api/v1/applications/${APP_NAME}" \
  | jq '{sync:.status.sync.status,health:.status.health.status,phase:.status.operationState.phase,msg:.status.operationState.message}'

Preflight scripts and health probe parameters

Clone the same revision Argo syncs into mktemp. Run kustomize build / helm template, pipe to kubeconform, optionally crane manifest on images. Export GIT_TERMINAL_PROMPT=0 for non-interactive clones and delete the workspace after each event so secrets never linger on disk.

GitOps link: preflight complements Argo—if it passes yet Argo stays OutOfSync, diff live cluster state; if it fails, attach the JSON summary to the ticket.

Citeable defaults (tune to your SLO):

  • Probe interval: 15 s for curl-based gateway checks from launchd.
  • Probe timeout: 3 s per request; mark unhealthy after three consecutive failures.
  • Summary POST: curl --max-time 25 with sleeps 2 / 4 / 8 s between attempts.
openclaw doctor
OC_PORT=$(jq -r '.gateway.port // 18789' "$HOME/.openclaw/openclaw.json")
curl -fsS --max-time 3 "http://127.0.0.1:${OC_PORT}/health" || exit 1

read -r -d '' SUMMARY <<'JSON'
{"schema":"macpull.argocd.sync.v1","app":"payments","revision":"abc123","phase":"Failed","preflightExit":0,"excerpt":"truncated operator message..."}
JSON
for s in 2 4 8; do
  curl -fsS --max-time 25 -H "Content-Type: application/json" \
    --data-binary "$SUMMARY" "$OBSERVABILITY_URL" && break
  sleep "$s"
done

FAQ: authentication failures, timeouts, retries

Authentication failures (HTTP 401)

Refresh ARGOCD_TOKEN, confirm nginx forwards Authorization, compare ingest secrets with timing-safe equals after trimming newlines.

Timeouts

Raise curl --max-time only on API fetches; keep webhooks fast. Match grpc-web to your CLI login; set HTTPS_PROXY consistently behind proxies.

Retries

Max three POST attempts; key by app+revision+uid; stop on 409 Conflict.

Summary. You need Node 22+, clean openclaw doctor output, TLS webhooks, read-only Argo tokens, disposable preflight dirs, and 2/4/8s summary retries. An always-on remote Mac beats laptops for listeners and launchd logs.

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