Orchestrateur go pour lancer la démo et mettre en place plusieurs instances docker

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
+}