feat: complete dockerization (optional)

internal/infrastructure/config/settings.go

@@ -33,6 +33,7 @@ type Settings struct {
 	TrustedProxies     []string
 	Version            string
 	UpdateFeedURL      string
+	Container          bool
 }
 
 func (s Settings) IsProduction() bool {
@@ -76,6 +77,7 @@ func NewSettingsFromEnv() (Settings, error) {
 		},
 		TrustedProxies: parseSemicolonSeparatedList(os.Getenv("TRUSTED_PROXIES")),
 		UpdateFeedURL:  os.Getenv("UPDATE_FEED_URL"),
+		Container:      strings.EqualFold(os.Getenv("RENEWCMS_CONTAINER"), "true"),
 	}, nil
 }