Update Dockerfile

Dockerfile

@@ -1,18 +1,13 @@
 # -----------------------------
-# Keycloak with SQLite (POC) on port 8888, HTTP only
+# Keycloak with H2 (in-memory) POC on port 8888
 # -----------------------------
 
 ARG KEYCLOAK_VERSION=25.0
 FROM quay.io/keycloak/keycloak:${KEYCLOAK_VERSION} AS builder
 
-# Configure DB at build time (important!)
-ENV KC_DB=sqlite
+# Configure in-memory DB at build time
+ENV KC_DB=dev-mem
 
-# Optional: enable health/metrics
-ENV KC_HEALTH_ENABLED=true \
-    KC_METRICS_ENABLED=true
-
-# Build optimized server with SQLite baked in
 RUN /opt/keycloak/bin/kc.sh build
 
 # -----------------------------
@@ -20,18 +15,12 @@ RUN /opt/keycloak/bin/kc.sh build
 # -----------------------------
 FROM quay.io/keycloak/keycloak:${KEYCLOAK_VERSION}
 
-# Runtime env (admin user etc.)
 ENV KEYCLOAK_ADMIN=admin \
     KEYCLOAK_ADMIN_PASSWORD=admin \
-    KC_HTTP_PORT=7860 \
-    KC_HEALTH_ENABLED=true \
-    KC_METRICS_ENABLED=true
+    KC_HTTP_PORT=7860
 
-# Copy optimized server with SQLite from builder
 COPY --from=builder /opt/keycloak/ /opt/keycloak/
 
-VOLUME ["/opt/keycloak/data"]
-
 EXPOSE 8888
 
 ENTRYPOINT ["/opt/keycloak/bin/kc.sh"]