diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..172208e
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,6 @@
+POSTGRES_USER=developer
+POSTGRES_PASSWORD=secret
+DSN=database:5432/meteologica?sslmode=disable
+
+URL_SERVICE_A=http://service_a:8080
+
diff --git a/.gitignore b/.gitignore
index 74aac89..160dd8a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .sqlfluff
 *.out
 apuntes.md
+.env