feat(scripts): lxc-mcp-install env-var overrides + repo clone fallback

- All prompted values overridable via env vars (MCP_API_KEY,
  MCP_SERVICE_KEY, BACKEND_URL, INSTALL_DIR, etc.).
- Clone the repo into INSTALL_DIR if it isn't already present, so the
  script can be fetched and run directly inside a fresh LXC created by
  the community-scripts/ProxmoxVE helper (no manual git clone first).
- README: clarify the Proxmox flow (community-scripts creates the LXC,
  user runs this script inside it).

.github/workflows/docker-publish.yml

@@ -16,14 +16,21 @@ jobs:
       matrix:
         include:
           - image: ghcr.io/pouzor/homelable-backend
+            context: .
             dockerfile: Dockerfile.backend
             build_args: ""
           - image: ghcr.io/pouzor/homelable-frontend
+            context: .
             dockerfile: Dockerfile.frontend
             build_args: ""
           - image: ghcr.io/pouzor/homelable-frontend-standalone
+            context: .
             dockerfile: Dockerfile.frontend
             build_args: "VITE_STANDALONE=true"
+          - image: ghcr.io/pouzor/homelable-mcp
+            context: ./mcp
+            dockerfile: Dockerfile.mcp
+            build_args: ""
 
     steps:
       - uses: actions/checkout@v4
@@ -55,8 +62,8 @@ jobs:
       - name: Build and push
         uses: docker/build-push-action@v6
         with:
-          context: .
-          file: ${{ matrix.dockerfile }}
+          context: ${{ matrix.context }}
+          file: ${{ matrix.context }}/${{ matrix.dockerfile }}
           platforms: linux/amd64,linux/arm64
           push: true
           tags: ${{ steps.meta.outputs.tags }}

README.md

@@ -223,6 +223,12 @@ docker compose up -d mcp
 # MCP server is now listening on http://<your-homelab-ip>:8001
 ```
 
+> **Proxmox LXC / bare-metal (no Docker):** create the LXC via
+> [community-scripts/ProxmoxVE](https://github.com/community-scripts/ProxmoxVE) (or any
+> Debian/Ubuntu LXC), then inside it run `sudo bash scripts/lxc-mcp-install.sh`.
+> Installs a `homelable-mcp` systemd service, prompts for `MCP_API_KEY` / `MCP_SERVICE_KEY`
+> (auto-generated if you press Enter), and skips prompts if `mcp/.env` already exists.
+
 **3. Configure your AI client:**
 
 **Claude Code** — run this command in your terminal:

VERSION

@@ -1 +1 @@
-2.0.3
+2.1.1

backend/app/api/routes/liveview.py

@@ -34,8 +34,10 @@ async def liveview_canvas(
     edges = (await db.execute(select(Edge))).scalars().all()
     state = await db.get(CanvasState, 1)
     viewport: dict[str, Any] = state.viewport if state else {"x": 0, "y": 0, "zoom": 1}
+    custom_style: dict[str, Any] | None = state.custom_style if state else None
     return CanvasStateResponse(
         nodes=[NodeResponse.model_validate(n) for n in nodes],
         edges=[EdgeResponse.model_validate(e) for e in edges],
         viewport=viewport,
+        custom_style=custom_style,
     )

backend/tests/test_liveview.py

@@ -112,6 +112,28 @@ async def test_liveview_returns_saved_canvas(client: AsyncClient, auth_headers):
     assert nodes[0]["label"] == "Live Node"
 
 
+# ── custom_style + theme propagation ─────────────────────────────────────────
+
+@pytest.mark.asyncio
+async def test_liveview_returns_custom_style_and_theme(client: AsyncClient, auth_headers):
+    """custom_style and viewport.theme_id from a saved canvas surface in liveview."""
+    settings.liveview_key = "test-key"
+    headers = await auth_headers()
+    payload = {
+        "nodes": [],
+        "edges": [],
+        "viewport": {"x": 0, "y": 0, "zoom": 1, "theme_id": "matrix"},
+        "custom_style": {"fontFamily": "Inter", "nodeRadius": 12},
+    }
+    await client.post("/api/v1/canvas/save", json=payload, headers=headers)
+
+    res = await client.get("/api/v1/liveview?key=test-key")
+    assert res.status_code == 200
+    body = res.json()
+    assert body["viewport"].get("theme_id") == "matrix"
+    assert body["custom_style"] == {"fontFamily": "Inter", "nodeRadius": 12}
+
+
 # ── Re-disable after enabling ─────────────────────────────────────────────────
 
 @pytest.mark.asyncio

docker-compose.prebuilt.yml

@@ -24,6 +24,20 @@ services:
     networks:
       - homelable
 
+  mcp:
+    image: ghcr.io/pouzor/homelable-mcp:latest
+    restart: unless-stopped
+    ports:
+      - "8001:8001"
+    env_file:
+      - .env
+    environment:
+      BACKEND_URL: "http://backend:8000"
+    depends_on:
+      - backend
+    networks:
+      - homelable
+
 volumes:
   backend_data:
 

frontend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "frontend",
-  "version": "2.0.3",
+  "version": "2.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "frontend",
-      "version": "2.0.3",
+      "version": "2.1.1",
       "dependencies": {
         "@base-ui/react": "^1.2.0",
         "@dagrejs/dagre": "^2.0.4",

frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "2.0.3",
+  "version": "2.1.1",
   "type": "module",
   "scripts": {
     "dev": "vite",

frontend/src/components/LiveView.tsx

@@ -29,7 +29,7 @@ import { nodeTypes } from '@/components/canvas/nodes/nodeTypes'
 import { edgeTypes } from '@/components/canvas/edges/edgeTypes'
 import { deserializeApiNode, deserializeApiEdge, type ApiNode, type ApiEdge } from '@/utils/canvasSerializer'
 import { liveviewApi } from '@/api/client'
-import type { NodeData } from '@/types'
+import type { NodeData, CustomStyleDef } from '@/types'
 
 const STANDALONE = import.meta.env.VITE_STANDALONE === 'true'
 const STORAGE_KEY = 'homelable_canvas'
@@ -40,6 +40,8 @@ function LiveViewCanvas() {
   const { nodes, edges, loadCanvas, fitViewPending, clearFitViewPending } = useCanvasStore()
   const { fitView } = useReactFlow()
   const activeTheme = useThemeStore((s) => s.activeTheme)
+  const setTheme = useThemeStore((s) => s.setTheme)
+  const setCustomStyle = useThemeStore((s) => s.setCustomStyle)
   const theme = THEMES[activeTheme]
   // Derive initial view state synchronously (avoids calling setState inside an effect):
   // - standalone → always ready (localStorage, no key required)
@@ -73,9 +75,12 @@ function LiveViewCanvas() {
         const { nodes: apiNodes, edges: apiEdges } = res.data
         const proxmoxMap = new Map<string, boolean>(
           (apiNodes as ApiNode[])
-            .filter((n: ApiNode) => n.type === 'proxmox' || n.type === 'group')
-            .map((n: ApiNode) => [n.id, n.type === 'group' ? true : n.container_mode !== false])
+            .filter((n: ApiNode) => n.type === 'group' || n.container_mode === true)
+            .map((n: ApiNode) => [n.id, true])
         )
+        const savedTheme = res.data.viewport?.theme_id
+        if (savedTheme) setTheme(savedTheme)
+        if (res.data.custom_style) setCustomStyle(res.data.custom_style as CustomStyleDef)
         loadCanvas(
           (apiNodes as ApiNode[]).map((n) => deserializeApiNode(n, proxmoxMap)),
           (apiEdges as ApiEdge[]).map(deserializeApiEdge),
@@ -87,7 +92,7 @@ function LiveViewCanvas() {
         const detail: string = err.response.data?.detail ?? ''
         setViewState(detail === 'Live view is disabled' ? 'disabled' : 'invalid-key')
       })
-  }, [loadCanvas])
+  }, [loadCanvas, setTheme, setCustomStyle])
 
   useEffect(() => {
     if (!fitViewPending || nodes.length === 0) return

frontend/src/components/__tests__/LiveView.test.tsx

@@ -1,6 +1,7 @@
 import { describe, it, expect, vi, beforeEach } from 'vitest'
 import { render, screen, waitFor } from '@testing-library/react'
 import { useCanvasStore } from '@/stores/canvasStore'
+import { useThemeStore } from '@/stores/themeStore'
 
 // ── Mock heavy dependencies ────────────────────────────────────────────────
 
@@ -124,6 +125,55 @@ describe('LiveView (non-standalone)', () => {
     expect(nodes.find((n) => n.id === 'n1')).toBeDefined()
   })
 
+  // ── Nested children (docker_container inside docker_host) ────────────────
+
+  it('nests docker_container under docker_host parent (container_mode=true)', async () => {
+    setSearch('?key=valid')
+    const nestedPayload = {
+      data: {
+        nodes: [
+          {
+            id: 'host', type: 'docker', label: 'Docker Host', status: 'online',
+            services: [], pos_x: 0, pos_y: 0, container_mode: true,
+            created_at: '2024-01-01T00:00:00Z', updated_at: '2024-01-01T00:00:00Z',
+          },
+          {
+            id: 'ctr', type: 'docker_container', label: 'nginx', status: 'online',
+            services: [], pos_x: 20, pos_y: 30, parent_id: 'host',
+            created_at: '2024-01-01T00:00:00Z', updated_at: '2024-01-01T00:00:00Z',
+          },
+        ],
+        edges: [],
+        viewport: { x: 0, y: 0, zoom: 1 },
+      },
+    }
+    vi.mocked(liveviewApi.load).mockResolvedValue(nestedPayload as never)
+    render(<LiveView />)
+    await waitFor(() => expect(screen.getByTestId('react-flow')).toBeDefined())
+    const ctr = useCanvasStore.getState().nodes.find((n) => n.id === 'ctr')
+    expect(ctr?.parentId).toBe('host')
+    expect(ctr?.extent).toBe('parent')
+  })
+
+  // ── Theme + custom_style applied from payload ────────────────────────────
+
+  it('applies viewport.theme_id and custom_style from the payload', async () => {
+    setSearch('?key=valid')
+    const styledPayload = {
+      data: {
+        nodes: [],
+        edges: [],
+        viewport: { x: 0, y: 0, zoom: 1, theme_id: 'matrix' },
+        custom_style: { fontFamily: 'Inter', nodeRadius: 12 },
+      },
+    }
+    vi.mocked(liveviewApi.load).mockResolvedValue(styledPayload as never)
+    render(<LiveView />)
+    await waitFor(() => expect(screen.getByTestId('react-flow')).toBeDefined())
+    expect(useThemeStore.getState().activeTheme).toBe('matrix')
+    expect(useThemeStore.getState().customStyle).toEqual({ fontFamily: 'Inter', nodeRadius: 12 })
+  })
+
   // ── No editing props passed ───────────────────────────────────────────────
 
   it('does not show any Access Denied when key is valid', async () => {

scripts/lxc-mcp-install.sh

@@ -0,0 +1,164 @@
+#!/bin/bash
+# Install / enable the Homelable MCP server as a systemd service.
+#
+# Run interactively as root, inside an LXC or any Debian/Ubuntu host.
+# Typical Proxmox VE flow: create the LXC via the community-scripts/ProxmoxVE
+# helper, then run this script inside that LXC.
+#
+# Idempotent: re-running is safe. If mcp/.env already exists, the script
+# keeps it untouched and only refreshes the venv + systemd unit.
+#
+# Optional env vars (override defaults / skip the matching prompt):
+#   INSTALL_DIR     repo root (default: /opt/homelable)
+#   REPO_URL        clone URL if $INSTALL_DIR is empty (default: https://github.com/Pouzor/homelable.git)
+#   REPO_REF        branch/tag/commit when cloning (default: main)
+#   SERVICE_USER    systemd User= (default: homelable)
+#   MCP_PORT        listen port (default: 8001)
+#   MCP_API_KEY     client → MCP key (default: prompt, auto-gen on empty)
+#   MCP_SERVICE_KEY MCP → backend key (default: prompt, auto-gen on empty; must match backend .env)
+#   BACKEND_URL     backend base URL (default: http://127.0.0.1:8000)
+set -euo pipefail
+
+INSTALL_DIR="${INSTALL_DIR:-/opt/homelable}"
+REPO_URL="${REPO_URL:-https://github.com/Pouzor/homelable.git}"
+REPO_REF="${REPO_REF:-main}"
+SERVICE_USER="${SERVICE_USER:-homelable}"
+SERVICE_NAME="homelable-mcp"
+MCP_PORT="${MCP_PORT:-8001}"
+DEFAULT_BACKEND_URL="http://127.0.0.1:8000"
+
+log()  { printf '\033[1;36m==>\033[0m %s\n' "$*"; }
+warn() { printf '\033[1;33m!!\033[0m %s\n' "$*" >&2; }
+fail() { printf '\033[1;31mxx\033[0m %s\n' "$*" >&2; exit 1; }
+
+[[ $EUID -eq 0 ]] || fail "Run as root (sudo bash $0)."
+
+log "Installing OS dependencies (git, python3-venv, curl)"
+apt-get update -qq
+DEBIAN_FRONTEND=noninteractive apt-get install -y -qq \
+  git python3 python3-venv python3-pip curl iproute2 >/dev/null
+
+MCP_DIR="$INSTALL_DIR/mcp"
+if [[ ! -d "$MCP_DIR" ]]; then
+  log "Cloning $REPO_URL ($REPO_REF) → $INSTALL_DIR"
+  mkdir -p "$(dirname "$INSTALL_DIR")"
+  git clone --depth 1 --branch "$REPO_REF" "$REPO_URL" "$INSTALL_DIR"
+fi
+[[ -f "$MCP_DIR/requirements.txt" ]] || fail "Missing $MCP_DIR/requirements.txt — repo layout unexpected."
+
+if ss -ltn 2>/dev/null | awk '{print $4}' | grep -qE "[:.]${MCP_PORT}$"; then
+  warn "Port $MCP_PORT already in use. If it's a previous $SERVICE_NAME instance this is fine; otherwise abort and free the port."
+fi
+
+if ! id -u "$SERVICE_USER" >/dev/null 2>&1; then
+  log "Creating service user '$SERVICE_USER'"
+  useradd --system --home "$INSTALL_DIR" --shell /usr/sbin/nologin "$SERVICE_USER"
+fi
+
+ENV_FILE="$MCP_DIR/.env"
+gen_key() { python3 -c "import secrets;print('$1' + secrets.token_hex(24))"; }
+
+if [[ -f "$ENV_FILE" ]]; then
+  log ".env already present at $ENV_FILE — keeping existing values"
+else
+  [[ -f "$MCP_DIR/.env.example" ]] || fail "Missing $MCP_DIR/.env.example"
+  log "No .env found — generating one (press Enter to accept defaults)"
+
+  api_key="${MCP_API_KEY:-}"
+  svc_key="${MCP_SERVICE_KEY:-}"
+  backend_url="${BACKEND_URL:-}"
+
+  if [[ -z "$api_key" ]]; then
+    default_api_key="$(gen_key mcp_sk_)"
+    read -rp "MCP_API_KEY (client → MCP) [default: auto-generate]: " api_key
+    api_key="${api_key:-$default_api_key}"
+  fi
+  if [[ -z "$svc_key" ]]; then
+    default_svc_key="$(gen_key svc_)"
+    read -rp "MCP_SERVICE_KEY (MCP → backend, must match backend .env) [default: auto-generate]: " svc_key
+    svc_key="${svc_key:-$default_svc_key}"
+  fi
+  if [[ -z "$backend_url" ]]; then
+    read -rp "BACKEND_URL [$DEFAULT_BACKEND_URL]: " backend_url
+    backend_url="${backend_url:-$DEFAULT_BACKEND_URL}"
+  fi
+
+  umask 077
+  cat >"$ENV_FILE" <<EOF
+MCP_API_KEY=$api_key
+MCP_SERVICE_KEY=$svc_key
+BACKEND_URL=$backend_url
+EOF
+  log "Wrote $ENV_FILE (mode 600)"
+  warn "If the backend runs elsewhere, set the SAME MCP_SERVICE_KEY in its .env."
+fi
+
+VENV="$MCP_DIR/.venv"
+if [[ ! -d "$VENV" ]]; then
+  log "Creating venv at $VENV"
+  python3 -m venv "$VENV"
+fi
+log "Installing Python deps"
+"$VENV/bin/pip" install --quiet --upgrade pip
+"$VENV/bin/pip" install --quiet -r "$MCP_DIR/requirements.txt"
+
+chown -R "$SERVICE_USER":"$SERVICE_USER" "$MCP_DIR"
+chmod 600 "$ENV_FILE"
+
+UNIT="/etc/systemd/system/${SERVICE_NAME}.service"
+log "Writing $UNIT"
+cat >"$UNIT" <<EOF
+[Unit]
+Description=Homelable MCP server
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=$SERVICE_USER
+WorkingDirectory=$MCP_DIR
+EnvironmentFile=$ENV_FILE
+ExecStart=$VENV/bin/uvicorn app.main:app --host 0.0.0.0 --port $MCP_PORT
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+systemctl daemon-reload
+systemctl enable --now "$SERVICE_NAME"
+systemctl restart "$SERVICE_NAME"
+
+log "Waiting for MCP to come up on :$MCP_PORT"
+ok=0
+for _ in 1 2 3 4 5 6 7 8 9 10; do
+  if curl -fsS "http://127.0.0.1:${MCP_PORT}/health" >/dev/null 2>&1; then
+    ok=1; break
+  fi
+  sleep 1
+done
+if [[ "$ok" -ne 1 ]]; then
+  warn "MCP did not respond on /health within 10s. Check: journalctl -u $SERVICE_NAME -n 50"
+else
+  log "MCP server is up."
+fi
+
+LXC_IP="$(hostname -I 2>/dev/null | awk '{print $1}')"
+API_KEY_VALUE="$(grep -E '^MCP_API_KEY=' "$ENV_FILE" | cut -d= -f2-)"
+
+cat <<EOF
+
+----------------------------------------------------------------
+MCP server installed.
+
+  Service:     $SERVICE_NAME  (systemctl status $SERVICE_NAME)
+  Listen:      http://${LXC_IP:-<lxc-ip>}:${MCP_PORT}/mcp
+  Env file:    $ENV_FILE
+  Logs:        journalctl -u $SERVICE_NAME -f
+
+Claude Code client setup:
+  claude mcp add --transport sse homelable http://${LXC_IP:-<lxc-ip>}:${MCP_PORT}/mcp \\
+    --header "X-API-Key: $API_KEY_VALUE"
+----------------------------------------------------------------
+EOF