Remplace docker SDK par appels HTTP directs (zero deps)

core/src/main/java/com/loremind/infrastructure/web/controller/ConfigController.java

@@ -0,0 +1,30 @@
+package com.loremind.infrastructure.web.controller;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Map;
+
+/**
+ * Expose la configuration publique consommee par le frontend au demarrage.
+ * Activer le mode demo via la variable d'env DEMO_MODE=true : le front
+ * masque alors Settings / Export VTT, et les endpoints sensibles sont
+ * verrouilles cote serveur (cf. SettingsController).
+ */
+@RestController
+@RequestMapping("/api/config")
+public class ConfigController {
+
+    private final boolean demoMode;
+
+    public ConfigController(@Value("${app.demo-mode:false}") boolean demoMode) {
+        this.demoMode = demoMode;
+    }
+
+    @GetMapping
+    public Map<String, Object> getPublicConfig() {
+        return Map.of("demoMode", demoMode);
+    }
+}

core/src/main/java/com/loremind/infrastructure/web/controller/SettingsController.java

@@ -4,6 +4,7 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -13,6 +14,7 @@ import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.client.RestTemplate;
+import org.springframework.web.server.ResponseStatusException;
 
 import java.util.Map;
 
@@ -32,20 +34,25 @@ public class SettingsController {
 
     private final RestTemplate restTemplate;
     private final String brainBaseUrl;
+    private final boolean demoMode;
 
     public SettingsController(RestTemplate restTemplate,
-                              @Value("${brain.base-url}") String brainBaseUrl) {
+                              @Value("${brain.base-url}") String brainBaseUrl,
+                              @Value("${app.demo-mode:false}") boolean demoMode) {
         this.restTemplate = restTemplate;
         this.brainBaseUrl = brainBaseUrl;
+        this.demoMode = demoMode;
     }
 
     @GetMapping
     public ResponseEntity<Map<String, Object>> getSettings() {
+        guardDemoMode();
         return forward(HttpMethod.GET, "/settings", null);
     }
 
     @PutMapping
     public ResponseEntity<Map<String, Object>> updateSettings(@RequestBody Map<String, Object> patch) {
+        guardDemoMode();
         return forward(HttpMethod.PUT, "/settings", patch);
     }
 
@@ -64,6 +71,12 @@ public class SettingsController {
         return forward(HttpMethod.GET, "/models/onemin", null);
     }
 
+    private void guardDemoMode() {
+        if (demoMode) {
+            throw new ResponseStatusException(HttpStatus.FORBIDDEN, "Settings disabled in demo mode");
+        }
+    }
+
     @SuppressWarnings({"rawtypes", "unchecked"})
     private ResponseEntity<Map<String, Object>> forward(HttpMethod method, String path, Object body) {
         HttpHeaders headers = new HttpHeaders();

core/src/main/resources/application.properties

@@ -21,13 +21,13 @@ spring.jpa.show-sql=true
 spring.jpa.properties.hibernate.format_sql=true
 
 # Configuration CORS pour autoriser le Frontend Angular
-spring.web.cors.allowed-origins=http://localhost:4200
+spring.web.cors.allowed-origins=${CORS_ALLOWED_ORIGINS:http://localhost:4200}
 spring.web.cors.allowed-methods=GET,POST,PUT,DELETE,OPTIONS
 spring.web.cors.allowed-headers=*
 spring.web.cors.allow-credentials=true
 
 # Configuration du Brain (service IA Python)
-brain.base-url=http://localhost:8000
+brain.base-url=${BRAIN_BASE_URL:http://localhost:8000}
 brain.timeout-seconds=120
 
 # Secret partage Core <-> Brain (auth inter-service via entete X-Internal-Secret).
@@ -50,3 +50,7 @@ minio.bucket=${MINIO_BUCKET:loremind-images}
 # Limites d'upload d'images (MB)
 spring.servlet.multipart.max-file-size=10MB
 spring.servlet.multipart.max-request-size=10MB
+
+# Mode demo : masque Settings/Export cote front et bloque les PUT /api/settings
+# cote serveur. Activer via DEMO_MODE=true sur les deploiements publics.
+app.demo-mode=${DEMO_MODE:false}

demo/.env.example

@@ -0,0 +1,27 @@
+# Copie en .env sur le serveur (jamais commite).
+
+# Registre et tag des images core / brain a spawner par session.
+REGISTRY=git.igmlcreation.fr
+TAG=latest
+
+# Secret partage entre core et brain (genere aleatoirement au build de chaque
+# session, mais un defaut est utile pour les checks de sante au boot).
+BRAIN_INTERNAL_SECRET_DEFAULT=change-me-on-server
+
+# Capacite
+MAX_SESSIONS=10
+SESSION_TTL_MINUTES=20
+
+# Rate limiting : 1 creation de session par IP par fenetre (secondes).
+RATE_LIMIT_WINDOW_SECONDS=60
+
+# Limites par conteneur de session (Docker API)
+CORE_MEMORY_MB=700
+BRAIN_MEMORY_MB=300
+POSTGRES_MEMORY_MB=200
+
+# Nom du reseau Docker externe Traefik (doit exister avant docker compose up)
+TRAEFIK_NETWORK=traefik
+
+# Domaine expose par Traefik
+DEMO_HOST=loremind-demo.igmlcreation.fr

demo/.gitignore

@@ -0,0 +1,2 @@
+.env
+*.log

demo/README.md

@@ -0,0 +1,46 @@
+# Demo publique LoreMind
+
+Deploiement d'une instance de demo ephemere pour `loremind-demo.igmlcreation.fr`.
+
+## Principe
+
+Chaque visiteur recoit un environnement isole spawne a la volee, detruit apres
+un court delai d'inactivite. Les donnees ne sont jamais persistees.
+
+Le mode demo (variable d'env `DEMO_MODE=true` sur le core) masque les ecrans
+de configuration qui n'ont pas de sens en vitrine.
+
+## Deploiement
+
+Prerequis :
+- Reseau Traefik existant cote host
+- Images `core` et `brain` pushees au registre
+
+```bash
+cp .env.example .env
+# Ajuster .env
+docker compose -f docker-compose.infra.yml up -d --build
+```
+
+Premier build : 5-10 min. Suivants : incrementaux.
+
+## Mise a jour
+
+```bash
+docker compose -f docker-compose.infra.yml pull
+docker compose -f docker-compose.infra.yml up -d --build
+```
+
+Les sessions en cours sont tuees au redemarrage.
+
+## Observations
+
+- `docker logs loremind-demo-orchestrator -f`
+- `docker ps --filter "name=demo-"`
+
+## Desactiver
+
+```bash
+docker compose -f docker-compose.infra.yml down
+docker ps -q --filter "name=demo-" | xargs -r docker rm -f
+```

demo/docker-compose.infra.yml

@@ -0,0 +1,78 @@
+# ==========================================================================
+# LoreMind Demo - Infra permanente
+# --------------------------------------------------------------------------
+# - dockerproxy : expose un subset restreint de l'API Docker a l'orchestrateur
+#   (lecture seule sauf containers/images/networks). Remplace le mount direct
+#   de /var/run/docker.sock : meme avec RCE sur l'orchestrateur, un attaquant
+#   ne peut pas exec sur l'hote, creer des volumes, ni lire le daemon.
+# - orchestrator : sert l'Angular et proxy les /api/* vers les sessions.
+#
+# Les conteneurs de session sont crees dynamiquement par l'orchestrateur.
+# ==========================================================================
+
+services:
+  dockerproxy:
+    image: tecnativa/docker-socket-proxy:latest
+    container_name: loremind-demo-dockerproxy
+    restart: unless-stopped
+    environment:
+      # Minimum requis par l'orchestrateur.
+      CONTAINERS: 1
+      IMAGES: 1
+      NETWORKS: 1
+      POST: 1
+      # Tout le reste reste a 0 (defaut) : pas d'EXEC, VOLUMES, BUILD, AUTH,
+      # SYSTEM, INFO, SWARM, SECRETS, CONFIGS, NODES, etc.
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+    networks:
+      - socket-proxy
+    # Pas de ports exposes : accessible uniquement via le reseau socket-proxy.
+
+  orchestrator:
+    container_name: loremind-demo-orchestrator
+    depends_on:
+      - dockerproxy
+    build:
+      context: ../
+      dockerfile: demo/orchestrator/Dockerfile
+    restart: unless-stopped
+    environment:
+      # L'orchestrateur parle a dockerproxy au lieu du socket direct.
+      DOCKER_HOST: tcp://dockerproxy:2375
+      REGISTRY: ${REGISTRY:-git.igmlcreation.fr}
+      TAG: ${TAG:-latest}
+      MAX_SESSIONS: ${MAX_SESSIONS:-10}
+      SESSION_TTL_MINUTES: ${SESSION_TTL_MINUTES:-20}
+      CORE_MEMORY_MB: ${CORE_MEMORY_MB:-700}
+      BRAIN_MEMORY_MB: ${BRAIN_MEMORY_MB:-300}
+      POSTGRES_MEMORY_MB: ${POSTGRES_MEMORY_MB:-200}
+      SESSIONS_NETWORK: loremind-demo-sessions
+      BRAIN_INTERNAL_SECRET_DEFAULT: ${BRAIN_INTERNAL_SECRET_DEFAULT:-change-me}
+      # Rate limit : 1 creation par IP par fenetre (en secondes).
+      RATE_LIMIT_WINDOW_SECONDS: ${RATE_LIMIT_WINDOW_SECONDS:-60}
+    networks:
+      - traefik
+      - sessions
+      - socket-proxy
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.loremind-demo.rule=Host(`${DEMO_HOST:-loremind-demo.igmlcreation.fr}`)"
+      - "traefik.http.routers.loremind-demo.entrypoints=websecure"
+      - "traefik.http.routers.loremind-demo.tls.certresolver=letsencrypt"
+      - "traefik.http.services.loremind-demo.loadbalancer.server.port=80"
+
+networks:
+  traefik:
+    external: true
+    name: ${TRAEFIK_NETWORK:-traefik}
+  sessions:
+    # Reseau interne pour les trios de session. Pas d'acces Internet direct
+    # (sauf via le DNS Docker), pas expose au host.
+    name: loremind-demo-sessions
+    driver: bridge
+  socket-proxy:
+    # Reseau prive entre dockerproxy et orchestrateur. Isole du reste.
+    name: loremind-demo-socket-proxy
+    driver: bridge
+    internal: true

demo/orchestrator/Dockerfile

@@ -0,0 +1,32 @@
+# syntax=docker/dockerfile:1.6
+# Build context attendu : racine du repo LoreMind.
+# Appele depuis demo/docker-compose.infra.yml avec context: ../
+
+# --- Etage 1 : build Angular statique ---
+FROM node:20-alpine AS web-build
+WORKDIR /build
+COPY web/package*.json ./
+RUN npm ci
+COPY web/ .
+RUN npm run build -- --configuration production
+
+# --- Etage 2 : build orchestrateur Go ---
+# go 1.25+ requis par une dependance transitive de github.com/docker/docker
+# (otelhttp v0.68+ impose cette version minimale).
+FROM golang:1.25-alpine AS go-build
+WORKDIR /src
+COPY demo/orchestrator/ ./
+# go mod tidy resout le go.sum au build pour eviter d'avoir a le committer.
+RUN go mod tidy && CGO_ENABLED=0 go build -o /orchestrator .
+
+# --- Etage final : runtime minimal ---
+FROM alpine:3.20
+RUN apk add --no-cache ca-certificates
+WORKDIR /app
+COPY --from=go-build /orchestrator /app/orchestrator
+COPY --from=web-build /build/dist/web /app/static
+COPY demo/orchestrator/preparing.html /app/preparing.html
+EXPOSE 80
+ENV STATIC_DIR=/app/static \
+    PREPARING_PAGE=/app/preparing.html
+ENTRYPOINT ["/app/orchestrator"]

demo/orchestrator/config.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"log"
+	"os"
+	"strconv"
+	"time"
+)
+
+// Config centralise les parametres lus depuis les variables d'env au boot.
+type Config struct {
+	Registry           string
+	Tag                string
+	MaxSessions        int
+	SessionTTL         time.Duration
+	CoreMemoryBytes    int64
+	BrainMemoryBytes   int64
+	PostgresMemoryBytes int64
+	SessionsNetwork    string
+	BrainSecretDefault string
+	StaticDir          string
+	PreparingPage      string
+	RateLimitWindow    time.Duration
+	MaxBodyBytes       int64
+}
+
+func loadConfig() *Config {
+	return &Config{
+		Registry:           envStr("REGISTRY", "git.igmlcreation.fr"),
+		Tag:                envStr("TAG", "latest"),
+		MaxSessions:        envInt("MAX_SESSIONS", 10),
+		SessionTTL:         time.Duration(envInt("SESSION_TTL_MINUTES", 20)) * time.Minute,
+		CoreMemoryBytes:    int64(envInt("CORE_MEMORY_MB", 700)) * 1024 * 1024,
+		BrainMemoryBytes:   int64(envInt("BRAIN_MEMORY_MB", 300)) * 1024 * 1024,
+		PostgresMemoryBytes: int64(envInt("POSTGRES_MEMORY_MB", 200)) * 1024 * 1024,
+		SessionsNetwork:    envStr("SESSIONS_NETWORK", "loremind-demo-sessions"),
+		BrainSecretDefault: envStr("BRAIN_INTERNAL_SECRET_DEFAULT", "change-me"),
+		StaticDir:          envStr("STATIC_DIR", "/app/static"),
+		PreparingPage:      envStr("PREPARING_PAGE", "/app/preparing.html"),
+		RateLimitWindow:    time.Duration(envInt("RATE_LIMIT_WINDOW_SECONDS", 60)) * time.Second,
+		// 10 Mo : aligne avec la limite d'upload d'image cote core.
+		MaxBodyBytes: int64(envInt("MAX_BODY_MB", 10)) * 1024 * 1024,
+	}
+}
+
+func envStr(key, def string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return def
+}
+
+func envInt(key string, def int) int {
+	v := os.Getenv(key)
+	if v == "" {
+		return def
+	}
+	i, err := strconv.Atoi(v)
+	if err != nil {
+		log.Printf("warning: env %s=%q not a number, using default %d", key, v, def)
+		return def
+	}
+	return i
+}

demo/orchestrator/docker.go

@@ -0,0 +1,335 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"crypto/rand"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"strings"
+	"time"
+)
+
+// DockerClient parle a l'API Engine Docker en HTTP brut via le dockerproxy.
+// Pas de SDK externe : evite les conflits de versions transitives qui
+// rendaient github.com/docker/docker v27/v28 ininstallable proprement.
+//
+// L'API Engine v1.43 est exposee par Docker Engine 24+ (et le dockerproxy
+// la supporte sans config supplementaire).
+type DockerClient struct {
+	baseURL string
+	http    *http.Client
+}
+
+func newDockerClient() (*DockerClient, error) {
+	base := os.Getenv("DOCKER_HOST")
+	if base == "" {
+		return nil, fmt.Errorf("DOCKER_HOST non defini (attendu : tcp://dockerproxy:2375)")
+	}
+	// tcp://host:port -> http://host:port (le dockerproxy parle HTTP en clair).
+	base = strings.Replace(base, "tcp://", "http://", 1)
+	return &DockerClient{
+		baseURL: strings.TrimRight(base, "/") + "/v1.43",
+		http:    &http.Client{Timeout: 60 * time.Second},
+	}, nil
+}
+
+// --- Types serialises vers l'API Engine ---
+
+type containerSpec struct {
+	Image            string            `json:"Image"`
+	Env              []string          `json:"Env,omitempty"`
+	Labels           map[string]string `json:"Labels,omitempty"`
+	HostConfig       hostConfig        `json:"HostConfig"`
+	NetworkingConfig networkingConfig  `json:"NetworkingConfig"`
+}
+
+type hostConfig struct {
+	Memory        int64             `json:"Memory,omitempty"`
+	NanoCPUs      int64             `json:"NanoCPUs,omitempty"`
+	PidsLimit     int64             `json:"PidsLimit,omitempty"`
+	Tmpfs         map[string]string `json:"Tmpfs,omitempty"`
+	SecurityOpt   []string          `json:"SecurityOpt,omitempty"`
+	RestartPolicy restartPolicy     `json:"RestartPolicy"`
+}
+
+type restartPolicy struct {
+	Name string `json:"Name"`
+}
+
+type networkingConfig struct {
+	EndpointsConfig map[string]endpointSettings `json:"EndpointsConfig,omitempty"`
+}
+
+type endpointSettings struct {
+	Aliases []string `json:"Aliases,omitempty"`
+}
+
+// runSpec : forme intermediate cote orchestrateur, mappee sur containerSpec
+// au moment d'envoyer la requete.
+type runSpec struct {
+	Name   string
+	Image  string
+	Env    []string
+	Labels map[string]string
+	Memory int64
+	Tmpfs  map[string]string
+	Net    string
+	Alias  string
+}
+
+// --- Operations de haut niveau ---
+
+// SpawnTrio cree postgres + brain + core pour une session.
+func (d *DockerClient) SpawnTrio(ctx context.Context, sessionID string, cfg *Config) error {
+	pgName := "demo-" + sessionID + "-postgres"
+	brainName := "demo-" + sessionID + "-brain"
+	coreName := "demo-" + sessionID + "-core"
+	pgPassword := randomHex(16)
+	brainSecret := randomHex(32)
+	adminPassword := randomHex(16)
+
+	labels := map[string]string{"demo-session": sessionID}
+
+	if err := d.runContainer(ctx, runSpec{
+		Name:   pgName,
+		Image:  "postgres:16-alpine",
+		Env:    []string{"POSTGRES_DB=loremind", "POSTGRES_USER=loremind", "POSTGRES_PASSWORD=" + pgPassword},
+		Labels: copyLabels(labels, "postgres"),
+		Memory: cfg.PostgresMemoryBytes,
+		Tmpfs:  map[string]string{"/var/lib/postgresql/data": "rw,size=200m"},
+		Net:    cfg.SessionsNetwork,
+		Alias:  pgName,
+	}); err != nil {
+		return fmt.Errorf("spawn postgres: %w", err)
+	}
+
+	if err := d.runContainer(ctx, runSpec{
+		Name:  brainName,
+		Image: cfg.Registry + "/ietm64/brain:" + cfg.Tag,
+		Env: []string{
+			"INTERNAL_SHARED_SECRET=" + brainSecret,
+			// Pas de provider LLM configure en demo : les features IA echoueront
+			// proprement, la demo sert principalement a explorer l'edition.
+			"LLM_PROVIDER=ollama",
+			"OLLAMA_BASE_URL=http://localhost:1",
+		},
+		Labels: copyLabels(labels, "brain"),
+		Memory: cfg.BrainMemoryBytes,
+		Net:    cfg.SessionsNetwork,
+		Alias:  brainName,
+	}); err != nil {
+		return fmt.Errorf("spawn brain: %w", err)
+	}
+
+	if err := d.runContainer(ctx, runSpec{
+		Name:  coreName,
+		Image: cfg.Registry + "/ietm64/core:" + cfg.Tag,
+		Env: []string{
+			"SPRING_DATASOURCE_URL=jdbc:postgresql://" + pgName + ":5432/loremind",
+			"SPRING_DATASOURCE_USERNAME=loremind",
+			"SPRING_DATASOURCE_PASSWORD=" + pgPassword,
+			"BRAIN_BASE_URL=http://" + brainName + ":8000",
+			"BRAIN_INTERNAL_SECRET=" + brainSecret,
+			"ADMIN_USERNAME=admin",
+			"ADMIN_PASSWORD=" + adminPassword,
+			"DEMO_MODE=true",
+			"CORS_ALLOWED_ORIGINS=*",
+		},
+		Labels: copyLabels(labels, "core"),
+		Memory: cfg.CoreMemoryBytes,
+		Net:    cfg.SessionsNetwork,
+		Alias:  coreName,
+	}); err != nil {
+		return fmt.Errorf("spawn core: %w", err)
+	}
+
+	return nil
+}
+
+func (d *DockerClient) runContainer(ctx context.Context, s runSpec) error {
+	// Pull best-effort : si l'image est deja locale, ContainerCreate la reprendra.
+	_ = d.pullImage(ctx, s.Image)
+
+	spec := containerSpec{
+		Image:  s.Image,
+		Env:    s.Env,
+		Labels: s.Labels,
+		HostConfig: hostConfig{
+			Memory:        s.Memory,
+			NanoCPUs:      1_000_000_000, // 1 vCPU par conteneur
+			PidsLimit:     200,           // anti fork-bomb
+			Tmpfs:         s.Tmpfs,
+			SecurityOpt:   []string{"no-new-privileges:true"},
+			RestartPolicy: restartPolicy{Name: "no"},
+		},
+		NetworkingConfig: networkingConfig{
+			EndpointsConfig: map[string]endpointSettings{
+				s.Net: {Aliases: []string{s.Alias}},
+			},
+		},
+	}
+	body, err := json.Marshal(spec)
+	if err != nil {
+		return err
+	}
+
+	createResp, err := d.do(ctx, "POST", "/containers/create?name="+url.QueryEscape(s.Name), body)
+	if err != nil {
+		return fmt.Errorf("create %s: %w", s.Name, err)
+	}
+	var created struct {
+		ID string `json:"Id"`
+	}
+	if err := json.Unmarshal(createResp, &created); err != nil {
+		return fmt.Errorf("parse create %s: %w", s.Name, err)
+	}
+	if _, err := d.do(ctx, "POST", "/containers/"+created.ID+"/start", nil); err != nil {
+		return fmt.Errorf("start %s: %w", s.Name, err)
+	}
+	return nil
+}
+
+// pullImage drain le flux de progression. Erreur silencieuse : si le pull
+// echoue (registre prive sans auth, image deja locale), runContainer aura un
+// retour clair via ContainerCreate.
+func (d *DockerClient) pullImage(ctx context.Context, img string) error {
+	req, err := http.NewRequestWithContext(ctx, "POST",
+		d.baseURL+"/images/create?fromImage="+url.QueryEscape(img), nil)
+	if err != nil {
+		return err
+	}
+	resp, err := d.http.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	_, _ = io.Copy(io.Discard, resp.Body)
+	if resp.StatusCode >= 400 {
+		return fmt.Errorf("pull %s: status %d", img, resp.StatusCode)
+	}
+	return nil
+}
+
+// WaitReady poll l'endpoint /api/config du core jusqu'a 200 ou timeout.
+func (d *DockerClient) WaitReady(ctx context.Context, sessionID string, timeout time.Duration) bool {
+	deadline := time.Now().Add(timeout)
+	target := "http://demo-" + sessionID + "-core:8080/api/config"
+	c := &http.Client{Timeout: 2 * time.Second}
+	for time.Now().Before(deadline) {
+		resp, err := c.Get(target)
+		if err == nil {
+			resp.Body.Close()
+			if resp.StatusCode == 200 {
+				return true
+			}
+		}
+		select {
+		case <-ctx.Done():
+			return false
+		case <-time.After(2 * time.Second):
+		}
+	}
+	return false
+}
+
+// KillTrio supprime tous les conteneurs labellises demo-session=<id>.
+func (d *DockerClient) KillTrio(ctx context.Context, sessionID string) error {
+	containers, err := d.listContainersWithLabel(ctx, "demo-session="+sessionID)
+	if err != nil {
+		return err
+	}
+	for _, c := range containers {
+		_, _ = d.do(ctx, "DELETE", "/containers/"+c.ID+"?force=true", nil)
+	}
+	return nil
+}
+
+// ListSessionIDs : utilise au boot pour retrouver les conteneurs orphelins.
+func (d *DockerClient) ListSessionIDs(ctx context.Context) ([]string, error) {
+	containers, err := d.listContainersWithLabel(ctx, "demo-session")
+	if err != nil {
+		return nil, err
+	}
+	seen := map[string]bool{}
+	for _, c := range containers {
+		if v, ok := c.Labels["demo-session"]; ok && v != "" {
+			seen[v] = true
+		}
+	}
+	out := make([]string, 0, len(seen))
+	for id := range seen {
+		out = append(out, id)
+	}
+	return out, nil
+}
+
+type containerInfo struct {
+	ID     string            `json:"Id"`
+	Labels map[string]string `json:"Labels"`
+}
+
+func (d *DockerClient) listContainersWithLabel(ctx context.Context, label string) ([]containerInfo, error) {
+	filters := map[string][]string{"label": {label}}
+	filtersJSON, _ := json.Marshal(filters)
+	q := url.Values{}
+	q.Set("all", "true")
+	q.Set("filters", string(filtersJSON))
+	body, err := d.do(ctx, "GET", "/containers/json?"+q.Encode(), nil)
+	if err != nil {
+		return nil, err
+	}
+	var list []containerInfo
+	if err := json.Unmarshal(body, &list); err != nil {
+		return nil, err
+	}
+	return list, nil
+}
+
+// do envoie une requete et renvoie le body. Une reponse 4xx/5xx est convertie
+// en erreur avec le contenu pour faciliter le debug.
+func (d *DockerClient) do(ctx context.Context, method, path string, body []byte) ([]byte, error) {
+	var rdr io.Reader
+	if body != nil {
+		rdr = bytes.NewReader(body)
+	}
+	req, err := http.NewRequestWithContext(ctx, method, d.baseURL+path, rdr)
+	if err != nil {
+		return nil, err
+	}
+	if body != nil {
+		req.Header.Set("Content-Type", "application/json")
+	}
+	resp, err := d.http.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	out, _ := io.ReadAll(resp.Body)
+	if resp.StatusCode >= 400 {
+		return nil, fmt.Errorf("%s %s: HTTP %d %s", method, path, resp.StatusCode, out)
+	}
+	return out, nil
+}
+
+// --- helpers ---
+
+func copyLabels(base map[string]string, role string) map[string]string {
+	out := make(map[string]string, len(base)+1)
+	for k, v := range base {
+		out[k] = v
+	}
+	out["demo-role"] = role
+	return out
+}
+
+func randomHex(n int) string {
+	b := make([]byte, n)
+	_, _ = rand.Read(b)
+	return hex.EncodeToString(b)
+}

demo/orchestrator/go.mod

@@ -0,0 +1,8 @@
+module github.com/loremind/demo-orchestrator
+
+go 1.23
+
+// Aucune dependance externe : on parle a Docker Engine en HTTP brut
+// (cf. docker.go) plutot que d'utiliser github.com/docker/docker, dont le
+// graphe transitif est instable d'une version a l'autre (sockets.DialPipe,
+// errors.As/Is, otelhttp...).

demo/orchestrator/main.go

@@ -0,0 +1,231 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"log"
+	"net/http"
+	"net/http/httputil"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const cookieName = "loremind-demo-session"
+
+func main() {
+	cfg := loadConfig()
+
+	docker, err := newDockerClient()
+	if err != nil {
+		log.Fatalf("docker init: %v", err)
+	}
+
+	mgr := newManager(docker, cfg)
+	limiter := newRateLimiter(cfg.RateLimitWindow)
+
+	// Nettoyage des sessions residuelles au boot (redemarrage orchestrateur).
+	cleanCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	mgr.CleanupOrphans(cleanCtx)
+	cancel()
+
+	go mgr.RunGC(context.Background())
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/_demo/ready", readyHandler(mgr))
+	mux.HandleFunc("/api/", apiHandler(mgr, cfg))
+	mux.HandleFunc("/", rootHandler(mgr, limiter, cfg))
+
+	srv := &http.Server{
+		Addr:    ":80",
+		Handler: mux,
+		// Timeouts anti-slowloris. WriteTimeout laisse de la marge pour le
+		// streaming SSE (ai/chat/stream) qui peut durer plusieurs minutes.
+		ReadHeaderTimeout: 10 * time.Second,
+		ReadTimeout:       60 * time.Second,
+		WriteTimeout:      10 * time.Minute,
+		IdleTimeout:       120 * time.Second,
+		// Headers max : 1 Mo (defaut Go), suffisant.
+	}
+
+	log.Printf("orchestrator listening on :80 (max sessions=%d, ttl=%s, rate window=%s)",
+		cfg.MaxSessions, cfg.SessionTTL, cfg.RateLimitWindow)
+	if err := srv.ListenAndServe(); err != nil {
+		log.Fatalf("http server: %v", err)
+	}
+}
+
+// rootHandler gere toutes les routes non-API : sert l'Angular statique si le
+// visiteur a deja une session prete, sinon cree une session (sous rate limit)
+// et renvoie la page de preparation.
+func rootHandler(mgr *Manager, limiter *rateLimiter, cfg *Config) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		sess := currentSession(r, mgr)
+
+		// Visiteur connu et session prete -> sert l'app normalement.
+		if sess != nil && sess.Status == StatusReady {
+			serveStatic(w, r, cfg.StaticDir)
+			return
+		}
+
+		// On ne spawn qu'a la navigation initiale (GET d'un document HTML).
+		// Les assets secondaires (JS/CSS/favicon) ne doivent pas declencher
+		// de nouvelle session.
+		if r.Method != http.MethodGet {
+			http.Error(w, "No session", http.StatusUnauthorized)
+			return
+		}
+		if !acceptsHTML(r) {
+			http.Error(w, "No session", http.StatusUnauthorized)
+			return
+		}
+
+		// Session inexistante (ou expiree) -> en creer une, sous rate limit.
+		if sess == nil {
+			ip := clientIP(r)
+			if !limiter.Allow(ip) {
+				http.Error(w, "Trop de tentatives. Merci d'attendre "+
+					strconv.Itoa(int(cfg.RateLimitWindow.Seconds()))+"s.",
+					http.StatusTooManyRequests)
+				return
+			}
+			newSess, err := mgr.Create(r.Context())
+			if err != nil {
+				if errors.Is(err, ErrCapacity) {
+					http.Error(w, "La demo est pleine (max "+
+						strconv.Itoa(cfg.MaxSessions)+
+						" sessions simultanees). Merci de reessayer plus tard.",
+						http.StatusServiceUnavailable)
+					return
+				}
+				http.Error(w, "Impossible de creer la session : "+err.Error(),
+					http.StatusInternalServerError)
+				return
+			}
+			sess = newSess
+			setCookie(w, sess.ID, cfg.SessionTTL)
+		}
+
+		servePreparingPage(w, cfg.PreparingPage)
+	}
+}
+
+// apiHandler proxifie /api/* vers le core de la session.
+// Bride la taille des bodies a MaxBodyBytes pour limiter les DoS memoire.
+func apiHandler(mgr *Manager, cfg *Config) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		sess := currentSession(r, mgr)
+		if sess == nil {
+			http.Error(w, "No session", http.StatusUnauthorized)
+			return
+		}
+		if sess.Status != StatusReady {
+			http.Error(w, "Session not ready", http.StatusServiceUnavailable)
+			return
+		}
+		if r.Body != nil {
+			r.Body = http.MaxBytesReader(w, r.Body, cfg.MaxBodyBytes)
+		}
+		proxy := sessionProxy(sess)
+		proxy.ServeHTTP(w, r)
+	}
+}
+
+// sessionProxy renvoie (et cree si besoin) un reverse proxy cache dans la
+// session via sync.Once : garantit une seule creation meme sous requetes
+// concurrentes, sans mutex explicite.
+func sessionProxy(sess *Session) *httputil.ReverseProxy {
+	sess.proxyOnce.Do(func() {
+		target, _ := url.Parse("http://" + sess.CoreHost + ":8080")
+		p := httputil.NewSingleHostReverseProxy(target)
+		p.ErrorHandler = func(w http.ResponseWriter, r *http.Request, err error) {
+			log.Printf("proxy error session=%s: %v", sess.ID, err)
+			http.Error(w, "Upstream error", http.StatusBadGateway)
+		}
+		sess.proxy = p
+	})
+	return sess.proxy.(*httputil.ReverseProxy)
+}
+
+// readyHandler renvoie l'etat de la session en JSON pour le polling client.
+// N'expose aucun ID de session ni d'information sur les autres sessions.
+func readyHandler(mgr *Manager) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		sess := currentSession(r, mgr)
+		w.Header().Set("Content-Type", "application/json")
+		if sess == nil {
+			json.NewEncoder(w).Encode(map[string]any{"status": "none"})
+			return
+		}
+		json.NewEncoder(w).Encode(map[string]any{
+			"status": string(sess.Status),
+			"error":  sess.Err,
+		})
+	}
+}
+
+// currentSession lit le cookie et retrouve la session en memoire.
+// Si le cookie pointe vers une session disparue (redemarrage orchestrateur ou
+// TTL expire), retourne nil -> le handler traitera comme un nouveau visiteur.
+func currentSession(r *http.Request, mgr *Manager) *Session {
+	c, err := r.Cookie(cookieName)
+	if err != nil || c.Value == "" {
+		return nil
+	}
+	return mgr.Get(c.Value)
+}
+
+func setCookie(w http.ResponseWriter, id string, ttl time.Duration) {
+	http.SetCookie(w, &http.Cookie{
+		Name:     cookieName,
+		Value:    id,
+		Path:     "/",
+		HttpOnly: true,
+		Secure:   true, // Traefik termine le TLS ; le browser ne doit envoyer ce cookie qu'en HTTPS.
+		SameSite: http.SameSiteLaxMode,
+		MaxAge:   int(ttl.Seconds()),
+	})
+}
+
+// serveStatic sert les fichiers de l'Angular build avec fallback sur index.html
+// pour que le routeur cote client fonctionne (SPA).
+// Le check HasPrefix apres Join + Clean empeche les path traversals (..).
+func serveStatic(w http.ResponseWriter, r *http.Request, dir string) {
+	reqPath := r.URL.Path
+	if reqPath == "/" || reqPath == "" {
+		reqPath = "/index.html"
+	}
+	fullPath := filepath.Join(dir, filepath.Clean(reqPath))
+	if !strings.HasPrefix(fullPath, dir) {
+		http.Error(w, "bad path", http.StatusBadRequest)
+		return
+	}
+	if info, err := os.Stat(fullPath); err == nil && !info.IsDir() {
+		http.ServeFile(w, r, fullPath)
+		return
+	}
+	http.ServeFile(w, r, filepath.Join(dir, "index.html"))
+}
+
+// servePreparingPage sert la page de chargement statique. Le cookie vient
+// d'etre pose, le JS de la page utilisera sessionId implicitement via le
+// cookie pour poller /_demo/ready.
+func servePreparingPage(w http.ResponseWriter, path string) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		http.Error(w, "Preparing page not found", http.StatusInternalServerError)
+		return
+	}
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	w.WriteHeader(http.StatusOK)
+	_, _ = w.Write(data)
+}
+
+func acceptsHTML(r *http.Request) bool {
+	accept := r.Header.Get("Accept")
+	return strings.Contains(accept, "text/html") || accept == "" || accept == "*/*"
+}

demo/orchestrator/preparing.html

@@ -0,0 +1,127 @@
+<!DOCTYPE html>
+<html lang="fr">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>LoreMind — Demo en preparation</title>
+  <style>
+    :root {
+      color-scheme: dark;
+    }
+    body {
+      margin: 0;
+      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+      background: #1a1625;
+      color: #e4def5;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      min-height: 100vh;
+      text-align: center;
+    }
+    .card {
+      max-width: 440px;
+      padding: 2.5rem 2rem;
+    }
+    .logo {
+      font-size: 2rem;
+      color: #b794f4;
+      margin-bottom: 0.5rem;
+    }
+    .subtitle {
+      letter-spacing: 0.2em;
+      font-size: 0.75rem;
+      color: #9880c4;
+      margin-bottom: 2rem;
+    }
+    h1 {
+      font-size: 1.35rem;
+      font-weight: 500;
+      margin: 0 0 1rem;
+    }
+    p {
+      color: #aaa0c5;
+      line-height: 1.6;
+      font-size: 0.95rem;
+    }
+    .spinner {
+      width: 36px;
+      height: 36px;
+      margin: 1.5rem auto 0;
+      border: 3px solid rgba(183, 148, 244, 0.2);
+      border-top-color: #b794f4;
+      border-radius: 50%;
+      animation: spin 1s linear infinite;
+    }
+    @keyframes spin {
+      to { transform: rotate(360deg); }
+    }
+    .error {
+      display: none;
+      margin-top: 1rem;
+      padding: 0.75rem 1rem;
+      background: rgba(239, 68, 68, 0.1);
+      border: 1px solid rgba(239, 68, 68, 0.3);
+      color: #fca5a5;
+      border-radius: 6px;
+      font-size: 0.85rem;
+    }
+    .error.visible { display: block; }
+  </style>
+</head>
+<body>
+  <main class="card">
+    <div class="logo">✦ LoreMind</div>
+    <div class="subtitle">THE DIGITAL CODEX</div>
+    <h1>Preparation de votre demo…</h1>
+    <p>
+      Nous initialisons une instance isolee rien que pour vous.
+      Cela prend generalement 20 a 40 secondes.
+    </p>
+    <p style="font-size: 0.8rem; color: #7d6ba0; margin-top: 1rem;">
+      Votre session sera automatiquement reinitialisee au bout de 20 minutes.
+    </p>
+    <div class="spinner"></div>
+    <div id="err" class="error"></div>
+  </main>
+  <script>
+    (function () {
+      var errBox = document.getElementById('err');
+      var attempts = 0;
+      var maxAttempts = 90; // 90 * 2s = 3 min max
+
+      function poll() {
+        attempts++;
+        fetch('/_demo/ready', { credentials: 'same-origin' })
+          .then(function (r) { return r.json(); })
+          .then(function (data) {
+            if (data.status === 'ready') {
+              window.location.href = '/';
+              return;
+            }
+            if (data.status === 'failed') {
+              errBox.textContent = 'Echec du demarrage : ' + (data.error || 'raison inconnue') + '. Rechargez la page pour reessayer.';
+              errBox.classList.add('visible');
+              return;
+            }
+            if (attempts >= maxAttempts) {
+              errBox.textContent = 'Timeout. Rechargez la page pour reessayer.';
+              errBox.classList.add('visible');
+              return;
+            }
+            setTimeout(poll, 2000);
+          })
+          .catch(function () {
+            if (attempts >= maxAttempts) {
+              errBox.textContent = 'Connexion perdue. Rechargez la page pour reessayer.';
+              errBox.classList.add('visible');
+              return;
+            }
+            setTimeout(poll, 2000);
+          });
+      }
+      poll();
+    })();
+  </script>
+</body>
+</html>

demo/orchestrator/ratelimit.go

@@ -0,0 +1,72 @@
+package main
+
+import (
+	"net"
+	"net/http"
+	"strings"
+	"sync"
+	"time"
+)
+
+// rateLimiter autorise au plus une action par IP dans une fenetre glissante.
+// Pas de token bucket : pour un endpoint de creation de session, "1 par
+// fenetre" est largement suffisant et plus simple a raisonner.
+type rateLimiter struct {
+	mu       sync.Mutex
+	lastSeen map[string]time.Time
+	window   time.Duration
+}
+
+func newRateLimiter(window time.Duration) *rateLimiter {
+	rl := &rateLimiter{
+		lastSeen: make(map[string]time.Time),
+		window:   window,
+	}
+	go rl.cleanupLoop()
+	return rl
+}
+
+// Allow renvoie true si l'IP n'a pas deja declenche d'action dans la fenetre.
+// Sur true, l'horloge de l'IP est reinitialisee.
+func (rl *rateLimiter) Allow(ip string) bool {
+	rl.mu.Lock()
+	defer rl.mu.Unlock()
+	now := time.Now()
+	if last, ok := rl.lastSeen[ip]; ok && now.Sub(last) < rl.window {
+		return false
+	}
+	rl.lastSeen[ip] = now
+	return true
+}
+
+// cleanupLoop purge les entrees plus anciennes que 2x la fenetre pour eviter
+// la croissance non bornee de la map sous trafic varie.
+func (rl *rateLimiter) cleanupLoop() {
+	ticker := time.NewTicker(5 * time.Minute)
+	defer ticker.Stop()
+	for range ticker.C {
+		cutoff := time.Now().Add(-2 * rl.window)
+		rl.mu.Lock()
+		for ip, t := range rl.lastSeen {
+			if t.Before(cutoff) {
+				delete(rl.lastSeen, ip)
+			}
+		}
+		rl.mu.Unlock()
+	}
+}
+
+// clientIP extrait l'IP reelle en prenant la derniere entree de X-Forwarded-For.
+// Justification : Traefik APPEND l'IP du peer au header existant, donc la
+// derniere valeur est celle que Traefik a observe directement (le vrai client).
+// Prendre la premiere serait une faille : un attaquant peut preremplir le header.
+func clientIP(r *http.Request) string {
+	if xff := r.Header.Get("X-Forwarded-For"); xff != "" {
+		parts := strings.Split(xff, ",")
+		return strings.TrimSpace(parts[len(parts)-1])
+	}
+	if host, _, err := net.SplitHostPort(r.RemoteAddr); err == nil {
+		return host
+	}
+	return r.RemoteAddr
+}

demo/orchestrator/sessions.go

@@ -0,0 +1,177 @@
+package main
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/hex"
+	"errors"
+	"log"
+	"sync"
+	"time"
+)
+
+// SessionStatus reflete l'etat du cycle de vie d'un trio de session.
+type SessionStatus string
+
+const (
+	StatusStarting SessionStatus = "starting"
+	StatusReady    SessionStatus = "ready"
+	StatusFailed   SessionStatus = "failed"
+)
+
+// Session represente une demo isolee pour un visiteur.
+// CoreHost est le hostname Docker interne du conteneur core de cette session
+// (ex: "demo-abc123-core"), vers lequel l'orchestrateur proxifie les /api/*.
+type Session struct {
+	ID        string
+	CreatedAt time.Time
+	Status    SessionStatus
+	CoreHost  string
+	Err       string
+	// proxy et proxyOnce : reverse-proxy cache, cree au plus une fois via
+	// sync.Once (evite la race entre deux requetes concurrentes sur la meme
+	// session). proxy est typee any pour ne pas contraindre sessions.go a
+	// importer net/http/httputil.
+	proxy     any
+	proxyOnce sync.Once
+}
+
+// Manager gere le cycle de vie des sessions (creation, acces, cleanup).
+// Thread-safe : le mutex protege la map contre les acces concurrents (HTTP
+// handlers + goroutine de GC).
+type Manager struct {
+	mu       sync.Mutex
+	sessions map[string]*Session
+	docker   *DockerClient
+	cfg      *Config
+}
+
+func newManager(docker *DockerClient, cfg *Config) *Manager {
+	return &Manager{
+		sessions: make(map[string]*Session),
+		docker:   docker,
+		cfg:      cfg,
+	}
+}
+
+// ErrCapacity est retournee quand MAX_SESSIONS est atteint.
+var ErrCapacity = errors.New("demo at capacity")
+
+// Create reserve un slot et lance le spawn des conteneurs en arriere-plan.
+// Retourne immediatement avec Status=starting. L'etat bascule a "ready" quand
+// les conteneurs sont up et que core repond a /api/config.
+func (m *Manager) Create(ctx context.Context) (*Session, error) {
+	m.mu.Lock()
+	if len(m.sessions) >= m.cfg.MaxSessions {
+		m.mu.Unlock()
+		return nil, ErrCapacity
+	}
+	id := newShortID()
+	sess := &Session{
+		ID:        id,
+		CreatedAt: time.Now(),
+		Status:    StatusStarting,
+		CoreHost:  "demo-" + id + "-core",
+	}
+	m.sessions[id] = sess
+	m.mu.Unlock()
+
+	// Spawn asynchrone : l'utilisateur voit immediatement la page "preparation".
+	go func() {
+		spawnCtx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
+		defer cancel()
+		if err := m.docker.SpawnTrio(spawnCtx, id, m.cfg); err != nil {
+			log.Printf("session %s spawn failed: %v", id, err)
+			m.mu.Lock()
+			sess.Status = StatusFailed
+			sess.Err = err.Error()
+			m.mu.Unlock()
+			// Nettoyage best-effort des conteneurs partiellement crees.
+			_ = m.docker.KillTrio(context.Background(), id)
+			return
+		}
+		// Attente que core reponde (sinon proxy retourne 502 aux premieres requetes).
+		if m.docker.WaitReady(spawnCtx, id, 90*time.Second) {
+			m.mu.Lock()
+			sess.Status = StatusReady
+			m.mu.Unlock()
+			log.Printf("session %s ready", id)
+		} else {
+			log.Printf("session %s never became ready", id)
+			m.mu.Lock()
+			sess.Status = StatusFailed
+			sess.Err = "timeout waiting for core"
+			m.mu.Unlock()
+			_ = m.docker.KillTrio(context.Background(), id)
+		}
+	}()
+
+	return sess, nil
+}
+
+// Get renvoie la session associee a un ID, ou nil si elle n'existe plus.
+func (m *Manager) Get(id string) *Session {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.sessions[id]
+}
+
+// RunGC boucle toutes les minutes pour supprimer les sessions expirees.
+// A lancer en goroutine au demarrage.
+func (m *Manager) RunGC(ctx context.Context) {
+	ticker := time.NewTicker(time.Minute)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C:
+			m.gcOnce()
+		}
+	}
+}
+
+func (m *Manager) gcOnce() {
+	cutoff := time.Now().Add(-m.cfg.SessionTTL)
+	m.mu.Lock()
+	var expired []string
+	for id, s := range m.sessions {
+		if s.CreatedAt.Before(cutoff) {
+			expired = append(expired, id)
+		}
+	}
+	for _, id := range expired {
+		delete(m.sessions, id)
+	}
+	m.mu.Unlock()
+
+	for _, id := range expired {
+		log.Printf("session %s expired, killing containers", id)
+		if err := m.docker.KillTrio(context.Background(), id); err != nil {
+			log.Printf("kill %s: %v", id, err)
+		}
+	}
+}
+
+// CleanupOrphans tue les conteneurs demo-* qui ne correspondent a aucune
+// session en memoire. Appele au demarrage pour gerer un redemarrage brutal.
+func (m *Manager) CleanupOrphans(ctx context.Context) {
+	ids, err := m.docker.ListSessionIDs(ctx)
+	if err != nil {
+		log.Printf("list orphans: %v", err)
+		return
+	}
+	for _, id := range ids {
+		log.Printf("cleaning orphan session %s", id)
+		_ = m.docker.KillTrio(ctx, id)
+	}
+}
+
+// newShortID genere un identifiant hexadecimal de 32 caracteres (128 bits).
+// 128 bits d'entropie rendent les collisions et le brute-force statistiquement
+// impossibles, meme si un attaquant pouvait tenter des millions de cookies.
+func newShortID() string {
+	b := make([]byte, 16)
+	_, _ = rand.Read(b)
+	return hex.EncodeToString(b)
+}

web/angular.json

@@ -60,7 +60,8 @@
         "serve": {
           "builder": "@angular-devkit/build-angular:dev-server",
           "options": {
-            "buildTarget": "web:build"
+            "buildTarget": "web:build",
+            "proxyConfig": "proxy.conf.json"
           }
         }
       }

web/proxy.conf.json

@@ -0,0 +1,8 @@
+{
+  "/api": {
+    "target": "http://localhost:8080",
+    "secure": false,
+    "changeOrigin": true,
+    "logLevel": "warn"
+  }
+}

web/src/app/app.routes.ts

@@ -1,4 +1,5 @@
 import { Routes } from '@angular/router';
+import { hiddenInDemoGuard } from './guards/demo-mode.guard';
 
 export const routes: Routes = [
   { path: 'lore', loadComponent: () => import('./lore/lore.component').then(m => m.LoreComponent) },
@@ -30,6 +31,8 @@ export const routes: Routes = [
   { path: 'game-systems', loadComponent: () => import('./game-systems/game-systems.component').then(m => m.GameSystemsComponent) },
   { path: 'game-systems/create', loadComponent: () => import('./game-systems/game-system-edit/game-system-edit.component').then(m => m.GameSystemEditComponent) },
   { path: 'game-systems/:id/edit', loadComponent: () => import('./game-systems/game-system-edit/game-system-edit.component').then(m => m.GameSystemEditComponent) },
-  { path: 'settings', loadComponent: () => import('./settings/settings.component').then(m => m.SettingsComponent) },
+  // Routes masquees en mode demo : ajouter canActivate: [hiddenInDemoGuard]
+  // (a prevoir aussi sur la future route d'export VTT).
+  { path: 'settings', canActivate: [hiddenInDemoGuard], loadComponent: () => import('./settings/settings.component').then(m => m.SettingsComponent) },
   { path: '', redirectTo: '/lore', pathMatch: 'full' }
 ];

web/src/app/guards/demo-mode.guard.ts

@@ -0,0 +1,17 @@
+import { inject } from '@angular/core';
+import { CanActivateFn, Router } from '@angular/router';
+import { ConfigService } from '../services/config.service';
+
+/**
+ * Bloque l'acces aux routes sensibles quand demoMode est actif et redirige
+ * vers la home. Defense UX ; le verrou serveur reste la source de verite.
+ */
+export const hiddenInDemoGuard: CanActivateFn = () => {
+  const config = inject(ConfigService);
+  const router = inject(Router);
+  if (config.demoMode) {
+    router.navigate(['/']);
+    return false;
+  }
+  return true;
+};

web/src/app/services/ai-chat.service.ts

@@ -45,8 +45,8 @@ export type NarrativeEntityType = 'arc' | 'chapter' | 'scene' | 'character';
 
 @Injectable({ providedIn: 'root' })
 export class AiChatService {
-  private readonly loreEndpoint = 'http://localhost:8080/api/ai/chat/stream';
-  private readonly campaignEndpoint = 'http://localhost:8080/api/ai/chat/stream-campaign';
+  private readonly loreEndpoint = '/api/ai/chat/stream';
+  private readonly campaignEndpoint = '/api/ai/chat/stream-campaign';
 
   /**
    * Streame la réponse de l'IA pour un historique de messages donné (chat ancré Lore).

web/src/app/services/campaign.service.ts

@@ -30,7 +30,7 @@ export interface ChapterDeletionImpact {
   providedIn: 'root'
 })
 export class CampaignService {
-  private apiUrl = 'http://localhost:8080/api/campaigns';
+  private apiUrl = '/api/campaigns';
 
   constructor(private http: HttpClient) {}
 
@@ -60,73 +60,73 @@ export class CampaignService {
 
   // ========== ARC ==========
   getArcs(campaignId: string): Observable<Arc[]> {
-    return this.http.get<Arc[]>(`http://localhost:8080/api/arcs/campaign/${campaignId}`);
+    return this.http.get<Arc[]>(`/api/arcs/campaign/${campaignId}`);
   }
 
   getArcById(id: string): Observable<Arc> {
-    return this.http.get<Arc>(`http://localhost:8080/api/arcs/${id}`);
+    return this.http.get<Arc>(`/api/arcs/${id}`);
   }
 
   createArc(payload: ArcCreate): Observable<Arc> {
-    return this.http.post<Arc>('http://localhost:8080/api/arcs', payload);
+    return this.http.post<Arc>('/api/arcs', payload);
   }
 
   updateArc(id: string, payload: ArcCreate): Observable<Arc> {
-    return this.http.put<Arc>(`http://localhost:8080/api/arcs/${id}`, payload);
+    return this.http.put<Arc>(`/api/arcs/${id}`, payload);
   }
 
   deleteArc(id: string): Observable<void> {
-    return this.http.delete<void>(`http://localhost:8080/api/arcs/${id}`);
+    return this.http.delete<void>(`/api/arcs/${id}`);
   }
 
   getArcDeletionImpact(id: string): Observable<ArcDeletionImpact> {
-    return this.http.get<ArcDeletionImpact>(`http://localhost:8080/api/arcs/${id}/deletion-impact`);
+    return this.http.get<ArcDeletionImpact>(`/api/arcs/${id}/deletion-impact`);
   }
 
   // ========== CHAPTER ==========
   getChapters(arcId: string): Observable<Chapter[]> {
-    return this.http.get<Chapter[]>(`http://localhost:8080/api/chapters/arc/${arcId}`);
+    return this.http.get<Chapter[]>(`/api/chapters/arc/${arcId}`);
   }
 
   getChapterById(id: string): Observable<Chapter> {
-    return this.http.get<Chapter>(`http://localhost:8080/api/chapters/${id}`);
+    return this.http.get<Chapter>(`/api/chapters/${id}`);
   }
 
   createChapter(payload: ChapterCreate): Observable<Chapter> {
-    return this.http.post<Chapter>('http://localhost:8080/api/chapters', payload);
+    return this.http.post<Chapter>('/api/chapters', payload);
   }
 
   updateChapter(id: string, payload: ChapterCreate): Observable<Chapter> {
-    return this.http.put<Chapter>(`http://localhost:8080/api/chapters/${id}`, payload);
+    return this.http.put<Chapter>(`/api/chapters/${id}`, payload);
   }
 
   deleteChapter(id: string): Observable<void> {
-    return this.http.delete<void>(`http://localhost:8080/api/chapters/${id}`);
+    return this.http.delete<void>(`/api/chapters/${id}`);
   }
 
   getChapterDeletionImpact(id: string): Observable<ChapterDeletionImpact> {
-    return this.http.get<ChapterDeletionImpact>(`http://localhost:8080/api/chapters/${id}/deletion-impact`);
+    return this.http.get<ChapterDeletionImpact>(`/api/chapters/${id}/deletion-impact`);
   }
 
   // ========== SCENE ==========
   getScenes(chapterId: string): Observable<Scene[]> {
-    return this.http.get<Scene[]>(`http://localhost:8080/api/scenes/chapter/${chapterId}`);
+    return this.http.get<Scene[]>(`/api/scenes/chapter/${chapterId}`);
   }
 
   getSceneById(id: string): Observable<Scene> {
-    return this.http.get<Scene>(`http://localhost:8080/api/scenes/${id}`);
+    return this.http.get<Scene>(`/api/scenes/${id}`);
   }
 
   createScene(payload: SceneCreate): Observable<Scene> {
-    return this.http.post<Scene>('http://localhost:8080/api/scenes', payload);
+    return this.http.post<Scene>('/api/scenes', payload);
   }
 
   updateScene(id: string, payload: SceneCreate): Observable<Scene> {
-    return this.http.put<Scene>(`http://localhost:8080/api/scenes/${id}`, payload);
+    return this.http.put<Scene>(`/api/scenes/${id}`, payload);
   }
 
   deleteScene(id: string): Observable<void> {
-    return this.http.delete<void>(`http://localhost:8080/api/scenes/${id}`);
+    return this.http.delete<void>(`/api/scenes/${id}`);
   }
 
   search(q: string): Observable<Campaign[]> {

web/src/app/services/character.service.ts

@@ -8,7 +8,7 @@ import { Character, CharacterCreate } from './character.model';
  */
 @Injectable({ providedIn: 'root' })
 export class CharacterService {
-  private apiUrl = 'http://localhost:8080/api/characters';
+  private apiUrl = '/api/characters';
 
   constructor(private http: HttpClient) {}
 

web/src/app/services/config.service.ts

@@ -0,0 +1,31 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { firstValueFrom } from 'rxjs';
+
+/**
+ * Configuration publique chargee une seule fois au demarrage via APP_INITIALIZER.
+ * Le flag demoMode bascule l'UI en mode vitrine (Settings/Export masques).
+ */
+export interface PublicConfig {
+  demoMode: boolean;
+}
+
+@Injectable({ providedIn: 'root' })
+export class ConfigService {
+  private config: PublicConfig = { demoMode: false };
+
+  constructor(private http: HttpClient) {}
+
+  async load(): Promise<void> {
+    try {
+      this.config = await firstValueFrom(this.http.get<PublicConfig>('/api/config'));
+    } catch {
+      // Si l'endpoint n'est pas joignable au boot, on reste sur le default
+      // (demoMode=false) pour ne pas bloquer l'app en dev.
+    }
+  }
+
+  get demoMode(): boolean {
+    return this.config.demoMode;
+  }
+}

web/src/app/services/conversation.service.ts

@@ -17,7 +17,7 @@ import {
  */
 @Injectable({ providedIn: 'root' })
 export class ConversationService {
-  private readonly apiUrl = 'http://localhost:8080/api/conversations';
+  private readonly apiUrl = '/api/conversations';
 
   constructor(private http: HttpClient) {}
 

web/src/app/services/game-system.service.ts

@@ -8,7 +8,7 @@ import { GameSystem, GameSystemCreate } from './game-system.model';
  */
 @Injectable({ providedIn: 'root' })
 export class GameSystemService {
-  private apiUrl = 'http://localhost:8080/api/game-systems';
+  private apiUrl = '/api/game-systems';
 
   constructor(private http: HttpClient) {}
 

web/src/app/services/image.service.ts

@@ -9,8 +9,8 @@ import { Image } from './image.model';
  */
 @Injectable({ providedIn: 'root' })
 export class ImageService {
-  /** Base absolue du backend — utile pour construire des URLs complètes (<img src>). */
-  readonly apiBase = 'http://localhost:8080';
+  /** Base du backend (vide = même origine que le front, résolue par le navigateur). */
+  readonly apiBase = '';
   private apiUrl = `${this.apiBase}/api/images`;
 
   constructor(private http: HttpClient) {}

web/src/app/services/lore.service.ts

@@ -28,8 +28,8 @@ export interface LoreDeletionImpact {
   providedIn: 'root'
 })
 export class LoreService {
-  private apiUrl = 'http://localhost:8080/api/lores';
-  private nodesUrl = 'http://localhost:8080/api/lore-nodes';
+  private apiUrl = '/api/lores';
+  private nodesUrl = '/api/lore-nodes';
 
   constructor(private http: HttpClient) {}
 

web/src/app/services/page.service.ts

@@ -10,7 +10,7 @@ import { Page, PageCreate } from './page.model';
  */
 @Injectable({ providedIn: 'root' })
 export class PageService {
-  private apiUrl = 'http://localhost:8080/api/pages';
+  private apiUrl = '/api/pages';
 
   constructor(private http: HttpClient) {}
 

web/src/app/services/settings.service.ts

@@ -36,7 +36,7 @@ export interface OllamaModelInfo {
 
 @Injectable({ providedIn: 'root' })
 export class SettingsService {
-  private readonly apiUrl = 'http://localhost:8080/api/settings';
+  private readonly apiUrl = '/api/settings';
 
   // HTTP Basic : le browser gere le prompt natif de credentials au premier 401.
   // withCredentials=true pour que les creds soient renvoyees sur les appels

web/src/app/services/template.service.ts

@@ -9,7 +9,7 @@ import { Template, TemplateCreate } from './template.model';
  */
 @Injectable({ providedIn: 'root' })
 export class TemplateService {
-  private apiUrl = 'http://localhost:8080/api/templates';
+  private apiUrl = '/api/templates';
 
   constructor(private http: HttpClient) {}
 

web/src/app/sidebar/sidebar.component.html

@@ -53,11 +53,11 @@
       <lucide-icon [img]="Dices" [size]="16"></lucide-icon>
       <span>Systèmes de JDR</span>
     </button>
-    <button class="tool-btn">
+    <button class="tool-btn" *ngIf="!config.demoMode">
       <lucide-icon [img]="Download" [size]="16"></lucide-icon>
       <span>Export VTT</span>
     </button>
-    <button class="tool-btn" [class.active]="currentRoute.startsWith('/settings')" (click)="navigateTo('/settings')">
+    <button class="tool-btn" *ngIf="!config.demoMode" [class.active]="currentRoute.startsWith('/settings')" (click)="navigateTo('/settings')">
       <lucide-icon [img]="Settings" [size]="16"></lucide-icon>
       <span>Paramètres</span>
     </button>

web/src/app/sidebar/sidebar.component.ts

@@ -4,6 +4,7 @@ import { Router } from '@angular/router';
 import { LucideAngularModule, Search, Download, Settings, ArrowLeft, Dices } from 'lucide-angular';
 import { LayoutService } from '../services/layout.service';
 import { GlobalSearchService } from '../services/global-search.service';
+import { ConfigService } from '../services/config.service';
 // Single source of truth pour la version affichée dans le footer :
 // on lit directement package.json à la compilation (resolveJsonModule).
 import packageJson from '../../../package.json';
@@ -30,7 +31,8 @@ export class SidebarComponent {
   constructor(
     private router: Router,
     private layoutService: LayoutService,
-    private globalSearch: GlobalSearchService
+    private globalSearch: GlobalSearchService,
+    public config: ConfigService
   ) {
     this.router.events.subscribe(() => {
       this.currentRoute = this.router.url;

web/src/main.ts

@@ -3,6 +3,8 @@ import { AppComponent } from './app/app.component';
 import { PreloadAllModules, provideRouter, withPreloading } from '@angular/router';
 import { routes } from './app/app.routes';
 import { provideHttpClient } from '@angular/common/http';
+import { APP_INITIALIZER } from '@angular/core';
+import { ConfigService } from './app/services/config.service';
 
 // withPreloading(PreloadAllModules) : une fois l'app initiale rendue, Angular
 // telecharge en arriere-plan tous les chunks lazy-loades. Consequence : la
@@ -13,5 +15,11 @@ bootstrapApplication(AppComponent, {
   providers: [
     provideRouter(routes, withPreloading(PreloadAllModules)),
     provideHttpClient(),
+    {
+      provide: APP_INITIALIZER,
+      useFactory: (config: ConfigService) => () => config.load(),
+      deps: [ConfigService],
+      multi: true,
+    },
   ],
 }).catch((err: Error) => console.error(err));