Don't use any DB in Keycloack in CI tests

Author: Jan Waś

.github/workflows/ci.yml

@@ -47,31 +47,17 @@ jobs:
           version: latest
           args: buildAll
 
-      - name: Setup services (Trino, Grafana, PostgreSQL, Keycloak)
+      - name: Setup services (Trino, Grafana, Keycloak)
         run: |
           docker network create trino
 
-          echo "Starting PostgreSQL..."
-          docker run --rm --detach \
-            --name postgres \
-            --net trino \
-            --env POSTGRES_USER=keycloak \
-            --env POSTGRES_PASSWORD=keycloak \
-            --env POSTGRES_DB=keycloak \
-            postgres:17.4
-
           echo "Starting Keycloak..."
           docker run --rm --detach \
             --name keycloak \
             --net trino \
             --publish 18080:8080 \
             --env KC_BOOTSTRAP_ADMIN_USERNAME=admin \
             --env KC_BOOTSTRAP_ADMIN_PASSWORD=admin \
-            --env KC_DB=postgres \
-            --env KC_DB_URL_HOST=postgres \
-            --env KC_DB_URL_DATABASE=keycloak \
-            --env KC_DB_USERNAME=keycloak \
-            --env KC_DB_PASSWORD=keycloak \
             --volume "$(pwd)/test-data/test-keycloak-realm.json:/opt/keycloak/data/import/realm.json" \
             quay.io/keycloak/keycloak:26.1.4 \
             start-dev --import-realm