use docker compose to test keycloak

test/s3/iam/docker-compose-simple.yml

@@ -0,0 +1,22 @@
+version: '3.8'
+
+services:
+  # Keycloak Identity Provider
+  keycloak:
+    image: quay.io/keycloak/keycloak:26.0.7
+    container_name: keycloak-test-simple
+    ports:
+      - "8080:8080"
+    environment:
+      KC_BOOTSTRAP_ADMIN_USERNAME: admin
+      KC_BOOTSTRAP_ADMIN_PASSWORD: admin
+      KC_HTTP_ENABLED: "true"
+      KC_HOSTNAME_STRICT: "false"
+      KC_HOSTNAME_STRICT_HTTPS: "false"
+    command: start-dev
+    networks:
+      - test-network
+
+networks:
+  test-network:
+    driver: bridge