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+# fxhnt CI/CD Pipeline on bizworx — Design Spec (2026-07-21)
+
+**Status:** design approved (approach + build-trigger decided with operator). Implementation plan follows.
+
+## Goal
+
+Restore automated build+deploy for fxhnt on the bizworx Kapsule so a push to `master` on
+`gitadmin/fxhnt` (Gitea) lands live without a manual `kubectl rollout restart` — the exact gap that left the
+cockpit on 2.5-day-old code (the CBU0/CSBGU0 fix). **Git-sync-first, image-on-demand:** code changes trigger a
+fast rollout (git-sync re-pulls src); only dependency/Dockerfile changes trigger a Kaniko image rebuild.
+
+## Why this shape
+
+The operator's insight: **code changes often, the image changes rarely.** git-sync already pulls fresh `src/`
+on every (re)start, so a code-only push needs only a rollout — not a 5-minute Kaniko build. A rebuild is needed
+only when `pyproject.toml` / `fxhnt.Dockerfile` / lock change. This is exactly the `mode=build` vs `mode=deploy`
+split the retired `infra/argo/cockpit-build-deploy.yaml` already encoded — we reanimate and fix it, rather than
+adopt the generic `build-image` template (which lacks the split and fxhnt's deploy specifics).
+
+## Verified current state (all components already exist on bizworx)
+
+- **One Gitea** (ns `gitea`): `git.fxhnt.ai` and `gitea-http.gitea.svc` are the SAME instance; it holds
+  `gitadmin/fxhnt` (code) alongside `bizworx-ops/infrastructure` (the msp GitOps monorepo). No second Gitea.
+- **Argo Events** (`gitea-webhook` eventsource, `/push`, repo-agnostic) + **Argo Workflows** (Kaniko) — already
+  driving `build-msp-*` via path-filtered sensors. Reusable.
+- **Registry:** fxhnt's image is `rg.fr-par.scw.cloud/bizworx/fxhnt-cockpit` (Scaleway) — DIFFERENT from msp's
+  `registry.bizworx.nl/bizworx-ops/`. Secret `scw-registry` (ns foxhunt) holds the push creds.
+- **Dockerfile EXISTS:** `infra/docker/fxhnt.Dockerfile` (python:3.11-slim, `fxhnt serve` :8080). Reusable as-is.
+- **SAs exist:** `argo-workflow` (ns argo), `argo-events-sa` (ns argo-events); `argo-git-ssh-key` (ns foxhunt).
+- **What's broken in the old pipeline:** (1) `nodeSelector: ci-compile-cpu` — that pool is DECOMMISSIONED
+  (only `large` + `sfs` pools exist now) → build/deploy pods won't schedule; (2) the Sensor that triggered it
+  is gone; (3) no webhook on `gitadmin/fxhnt` → the eventsource never hears fxhnt pushes.
+- **No fxhnt ArgoCD app** — fxhnt manifests are applied by the workflow's `kubectl apply`, not GitOps-synced.
+  We keep it that way (see Non-goals).
+
+## Architecture
+
+```
+git push → gitadmin/fxhnt (master)
+   │  Gitea webhook  ──────────────►  argo-events `gitea-webhook` eventsource (/push)
+   ▼
+Sensor `build-fxhnt`  — filters: ref==refs/heads/master, pusher != argocd-image-updater
+   │   path-filter on the pushed commits' modified files decides the mode:
+   │     • touched pyproject.toml OR infra/docker/fxhnt.Dockerfile          → param mode=build
+   │     • otherwise (src/, infra/k8s/, config)                             → param mode=deploy
+   │   (NB: the repo has NO lock file — the Dockerfile `pip install`s straight from pyproject.toml,
+   │    so pyproject.toml + the Dockerfile are the ONLY dependency sources that require a rebuild.)
+   ▼
+Argo Workflow (WorkflowTemplate `fxhnt-cockpit`, reanimated) — DAG:
+   ├─ mode=build:  git-clone(sha) → Kaniko build → rg.fr-par.scw.cloud/bizworx/fxhnt-cockpit:<sha7>+:latest
+   └─ (build skipped when mode=deploy)
+   → deploy step: kubectl apply manifests + refresh the daemons (git-sync re-pulls src)
+```
+
+## Components to build/fix
+
+### 1. WorkflowTemplate `fxhnt-cockpit` (reanimate `infra/argo/cockpit-build-deploy.yaml`)
+- Fix `nodeSelector` `ci-compile-cpu` → `large` (both build + deploy templates).
+- Keep the `mode` DAG: `build` (Kaniko rebuild + deploy) vs `deploy` (skip build, deploy only).
+- Keep the Kaniko dest `rg.fr-par.scw.cloud/bizworx/fxhnt-cockpit` but ADD an immutable `:<sha7>` tag next to
+  `:latest` (reproducibility — image == commit; matches the msp pattern). Cache stays on.
+- Clone via the in-cluster Gitea (`ssh://…gitea…/gitadmin/fxhnt.git`) using `argo-git-ssh-key`; push via
+  `scw-registry`. Verify both secrets resolve from the namespace the workflow runs in.
+
+### 2. Sensor `build-fxhnt` (new, model on `build-msp-portal`)
+- Dependency: `gitea-webhook` push, filter `body.ref == refs/heads/master` AND
+  `body.pusher.username != argocd-image-updater` (loop-guard; harmless here since no image-updater writes fxhnt,
+  but kept for parity/safety).
+- **Mode decision via path-filter on `body.commits.#.modified`:** if any modified path matches
+  `pyproject.toml` | `infra/docker/fxhnt.Dockerfile` → submit workflow with `mode=build`; else `mode=deploy`.
+  (No lock file exists, so those two paths are the complete rebuild-trigger set.) Mechanism: two triggers with
+  complementary data-filters (one matching the dep-paths → build, one matching their negation → deploy), or one
+  trigger whose param is computed — the plan picks whichever Argo Events supports cleanly.
+- Inject `commit-sha` from `body.after`.
+
+### 3. Gitea webhook on `gitadmin/fxhnt`
+- Add a repo (or org) webhook POSTing push events to the `gitea-webhook` eventsource endpoint (same target the
+  infrastructure repo already uses). This is the one genuinely-missing wire.
+
+### 4. The deploy step — VERIFY, don't assume (open design point)
+The old deploy used **`scale 0→1` for fxhnt-dashboard, NOT `rollout restart`**, because the tailscale sidecar
+served `dashboard.fxhnt.ai` and a rolling restart overlapped two tailscale sessions → external proxy read
+"down". BUT: the dashboard now also has a `fxhnt-ingress`, and a manual `rollout restart` on 2026-07-21
+succeeded cleanly. **The plan must verify which external route is live** before choosing:
+- If `dashboard.fxhnt.ai` still resolves through the tailscale sidecar → keep `scale 0→1` (the race is real).
+- If it now resolves through `fxhnt-ingress` (tailscale sidecar vestigial) → a plain `rollout restart` is
+  simpler and correct; drop the scale-dance.
+Dagster has no external-proxy race → `rollout restart deploy/dagster` either way.
+
+## Non-goals (YAGNI)
+
+- **No ArgoCD GitOps app for fxhnt.** That would force fxhnt's manifests into the bizworx monorepo. git-sync +
+  the mode-split deliver auto-deploy while keeping manifests in the fxhnt repo. A declarative ArgoCD migration
+  is a separate, later decision.
+- **No image-updater for fxhnt.** The sensor writes the `:sha7`+`:latest` tags; the deploy step points the
+  daemons at the fresh image. No git-write-back loop needed.
+- **No change to the execution CronJobs** (ucits/bybit/ibkr rebalancers) — they git-sync per run already.
+
+## Success criteria
+
+1. A code-only push to `master` → cockpit reflects it within ~1–2 min WITHOUT a manual restart, NO Kaniko build.
+2. A `pyproject.toml`/Dockerfile push → a Kaniko rebuild produces `fxhnt-cockpit:<sha7>`+`:latest`, then deploys.
+3. The dashboard external route (`dashboard.fxhnt.ai`) stays UP across a deploy (no stale-proxy "down").
+4. No build-loop, no false trigger on unrelated pushes.
+5. Real-money safety unaffected — the pipeline only builds/deploys the cockpit+dagster daemons, never arms exec.