tested spring boot

docker-compose.yml

@@ -3,12 +3,12 @@ services:
     container_name: baeldung-keycloak.openid-provider
     image: quay.io/keycloak/keycloak:26.4
     command:
-    - start-dev
-    - --import-realm
+      - start-dev
+      - --import-realm
     ports:
-    - 8080:8080
+      - 8080:8080
     volumes:
-    - ./keycloak/:/opt/keycloak/data/import/
+      - ./keycloak/:/opt/keycloak/data/import/
     environment:
       KEYCLOAK_ADMIN: admin
       KEYCLOAK_ADMIN_PASSWORD: ${KEYCLOAK_ADMIN_PASSWORD}
@@ -21,9 +21,42 @@ services:
       KC_HEALTH_ENABLED: true
       KC_METRICS_ENABLED: true
     extra_hosts:
-    - "host.docker.internal:host-gateway"
+      - "host.docker.internal:host-gateway"
     healthcheck:
       test: ['CMD-SHELL', '[ -f /tmp/HealthCheck.java ] || echo "public class HealthCheck { public static void main(String[] args) throws java.lang.Throwable { System.exit(java.net.HttpURLConnection.HTTP_OK == ((java.net.HttpURLConnection)new java.net.URL(args[0]).openConnection()).getResponseCode() ? 0 : 1); } }" > /tmp/HealthCheck.java && java /tmp/HealthCheck.java http://localhost:8080/auth/health/live']
       interval: 5s
       timeout: 5s
       retries: 20
+  postgres:
+    image: postgres:16
+    container_name: frisbyee-postgres
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_DB: frisbyee
+      POSTGRES_USER: frisbyee_user
+      POSTGRES_PASSWORD: secret
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+volumes:
+  postgres_data:
+
+version: "3.9"
+  postgres:
+    image: postgres:16
+    container_name: frisbyee-postgres
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_DB: frisbyee
+      POSTGRES_USER: frisbyee_user
+      POSTGRES_PASSWORD: secret
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+volumes:
+  postgres_data:
+
+version: "3.9"
+