separate docker-composer and ports

.env.sample.

+COMPOSE_FILE=docker-compose.yml:ports.yml
+
+# KeyCloak
+KC_ADMIN=admin
+KC_ADMIN_PASSWD=admin
+
+RESTART=always

.gitignore

+.env

docker-compose.yml

@@ -4,9 +4,8 @@ services:
     keycloak:
         image : quay.io/keycloak/keycloak:24.0.3
         container_name: keycloak
-        ports:
-            - 8080:8080
         environment:
-            - KEYCLOAK_ADMIN=admin
-            - KEYCLOAK_ADMIN_PASSWORD=admin
+            - KEYCLOAK_ADMIN=${KC_ADMIN}
+            - KEYCLOAK_ADMIN_PASSWORD=${KC_ADMIN_PASSWD}
         command: ["start-dev", "--import-realm"]
+        restart: ${RESTART}

ports.yml

+version: "3"
+
+services:
+    keycloak:
+        ports:
+            - 8080:8080