diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..6bfa4e6
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,49 @@
+# shot-crafter-calculator — variables de entorno
+# Las variables siguen la convencion de Quarkus: puntos → underscores, mayusculas.
+# Cualquier property de src/main/resources/application.properties se puede overridear.
+#
+# Uso:
+#   docker run --env-file .env gitea.danielarroyo.cl/proyectos/shot-crafter-calculator:latest
+#   docker run -e QUARKUS_HTTP_PORT=9090 gitea.danielarroyo.cl/proyectos/shot-crafter-calculator:latest
+
+# ===== HTTP server =====
+# QUARKUS_HTTP_PORT=8080
+# QUARKUS_HTTP_HOST=0.0.0.0
+
+# ===== Base de datos =====
+# Default: jdbc:h2:file:./data/shots (queda en /work/data/shots.mv.db dentro del container)
+# Produccion tipica (con volumen montado en /work/data):
+#   QUARKUS_DATASOURCE_JDBC_URL=jdbc:h2:file:/work/data/shots;DB_CLOSE_DELAY=-1
+# Para MySQL/Postgres cambiar tambien db-kind y credenciales:
+#   QUARKUS_DATASOURCE_DB_KIND=mysql
+#   QUARKUS_DATASOURCE_JDBC_URL=jdbc:mysql://db:3306/shots
+#   QUARKUS_DATASOURCE_USERNAME=shot
+#   QUARKUS_DATASOURCE_PASSWORD=secret
+#   QUARKUS_HIBERNATE_ORM_DATABASE_GENERATION=update
+
+# ===== JWT / Auth =====
+# MP_JWT_VERIFY_ISSUER=shot-crafter-calculator
+# MP_JWT_VERIFY_PUBLICKEY_LOCATION=publicKey.pem
+# SMALLRYE_JWT_SIGN_KEY_LOCATION=privateKey.pem
+# Si queres que el container NO bakee las claves, monta los .pem como volumen:
+#   docker run -v ./keys:/work/keys \
+#     -e MP_JWT_VERIFY_PUBLICKEY_LOCATION=/work/keys/publicKey.pem \
+#     -e SMALLRYE_JWT_SIGN_KEY_LOCATION=/work/keys/privateKey.pem ...
+
+# ===== Cookie =====
+# APP_AUTH_COOKIE_NAME=auth-token
+# APP_AUTH_COOKIE_MAX_AGE_SECONDS=86400
+# APP_AUTH_COOKIE_SECURE=false  # cambiar a true en produccion con HTTPS
+
+# ===== Logging =====
+# QUARKUS_LOG_LEVEL=INFO
+# QUARKUS_LOG_CATEGORY__com_l2_shots=DEBUG
+
+# ===== Ejemplo de uso con persistencia =====
+# docker run -d \
+#   --name shot-crafter \
+#   -p 8080:8080 \
+#   -v /opt/shot-crafter-data:/work/data \
+#   -e QUARKUS_DATASOURCE_JDBC_URL='jdbc:h2:file:/work/data/shots;DB_CLOSE_DELAY=-1' \
+#   -e APP_AUTH_COOKIE_SECURE=true \
+#   gitea.danielarroyo.cl/proyectos/shot-crafter-calculator:latest
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index cd6fd2b..dbdd94a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,4 +9,4 @@ RUN chmod 775 /work /work/application \
 EXPOSE 8080
 USER 1001
 
-ENTRYPOINT ["./application", "-Dquarkus.http.host=0.0.0.0"]
+ENTRYPOINT ["./application"]