refactor: rename postgresus to databasus

rebrand backup service following upstream project rename.
updates docker image to databasus/databasus:latest,
adds healthcheck, and includes cleanup function for
migration from old container name.

scripts/04_wizard.sh

@@ -6,7 +6,7 @@
 #
 # Features:
 #   - Single-screen checklist for service selection
-#   - Default services: n8n, portainer, monitoring, postgresus
+#   - Default services: n8n, portainer, monitoring, databasus
 #   - Preserves previously selected services on re-run
 #   - Updates COMPOSE_PROFILES in .env file
 #
@@ -41,15 +41,16 @@ base_services_data=(
     "cloudflare-tunnel" "Cloudflare Tunnel (Zero-Trust Secure Access)"
     "comfyui" "ComfyUI (Node-based Stable Diffusion UI)"
     "crawl4ai" "Crawl4ai (Web Crawler for AI)"
-    "docling" "Docling (Universal Document Converter to Markdown/JSON)"
+    "databasus" "Databasus (Database backups & monitoring)"
     "dify" "Dify (AI Application Development Platform with LLMOps)"
+    "docling" "Docling (Universal Document Converter to Markdown/JSON)"
     "flowise" "Flowise (AI Agent Builder)"
     "gost" "Gost Proxy (HTTP/HTTPS proxy for AI services outbound traffic)"
     "gotenberg" "Gotenberg (Document Conversion API)"
     "langfuse" "Langfuse Suite (AI Observability - includes Clickhouse, Minio)"
     "letta" "Letta (Agent Server & SDK)"
-    "lightrag" "LightRAG (Graph-based RAG with knowledge graphs)"
     "libretranslate" "LibreTranslate (Self-hosted translation API - 50+ languages)"
+    "lightrag" "LightRAG (Graph-based RAG with knowledge graphs)"
     "monitoring" "Monitoring Suite (Prometheus, Grafana, cAdvisor, Node-Exporter)"
     "n8n" "n8n, n8n-worker, n8n-import (Workflow Automation)"
     "neo4j" "Neo4j (Graph Database)"
@@ -58,7 +59,6 @@ base_services_data=(
     "open-webui" "Open WebUI (ChatGPT-like Interface)"
     "paddleocr" "PaddleOCR (OCR API Server)"
     "portainer" "Portainer (Docker management UI)"
-    "postgresus" "Postgresus (PostgreSQL backups & monitoring)"
     "postiz" "Postiz (Social publishing platform)"
     "python-runner" "Python Runner (Run your custom Python code from ./python-runner)"
     "qdrant" "Qdrant (Vector Database)"
@@ -92,7 +92,7 @@ while [ $idx -lt ${#base_services_data[@]} ]; do
     else
         # .env has no COMPOSE_PROFILES or it's empty/just quotes, use hardcoded defaults
         case "$tag" in
-            "n8n"|"portainer"|"monitoring"|"postgresus") status="ON" ;;
+            "n8n"|"portainer"|"monitoring"|"databasus") status="ON" ;;
             *) status="OFF" ;;
         esac
     fi

scripts/apply_update.sh

@@ -70,8 +70,9 @@ bash "$SCRIPT_DIR/05_configure_services.sh" || {
 }
 log_success "Service configuration completed."
 
-# Clean up legacy n8n worker containers from old naming convention
+# Clean up legacy containers from old naming conventions
 cleanup_legacy_n8n_workers
+cleanup_legacy_postgresus
 
 # Pull latest versions of selected containers based on updated .env
 set_telemetry_stage "update_docker_pull"

scripts/generate_welcome_page.sh

@@ -89,10 +89,10 @@ if is_profile_active "portainer"; then
     }")
 fi
 
-# Postgresus
-if is_profile_active "postgresus"; then
-    SERVICES_ARRAY+=("    \"postgresus\": {
-      \"hostname\": \"$(json_escape "$POSTGRESUS_HOSTNAME")\",
+# Databasus
+if is_profile_active "databasus"; then
+    SERVICES_ARRAY+=("    \"databasus\": {
+      \"hostname\": \"$(json_escape "$DATABASUS_HOSTNAME")\",
       \"credentials\": {
         \"note\": \"PostgreSQL credentials are shown in the PostgreSQL card\"
       }
@@ -495,12 +495,12 @@ if is_profile_active "n8n"; then
     ((STEP_NUM++))
 fi
 
-# Step 3: Configure database backups (if postgresus active)
-if is_profile_active "postgresus"; then
+# Step 3: Configure database backups (if databasus active)
+if is_profile_active "databasus"; then
     QUICK_START_ARRAY+=("    {
       \"step\": $STEP_NUM,
       \"title\": \"Configure database backups\",
-      \"description\": \"Set up Postgresus for automated PostgreSQL backups\"
+      \"description\": \"Set up Databasus for automated database backups\"
     }")
     ((STEP_NUM++))
 fi

scripts/update_preview.sh

@@ -129,9 +129,9 @@ if is_profile_active "searxng"; then
     check_image_update "searxng" "searxng/searxng:latest"
 fi
 
-if is_profile_active "postgresus"; then
-    log_subheader "Postgresus"
-    check_image_update "postgresus" "ghcr.io/postgresus/postgresus:latest"
+if is_profile_active "databasus"; then
+    log_subheader "Databasus"
+    check_image_update "databasus" "databasus/databasus:latest"
 fi
 
 # Summary

scripts/utils.sh

@@ -638,6 +638,22 @@ cleanup_legacy_n8n_workers() {
     fi
 }
 
+# Clean up legacy postgresus container after rename to databasus
+# This function removes the old "postgresus" container if it exists,
+# allowing the new "databasus" container to take its place.
+# Usage: cleanup_legacy_postgresus
+cleanup_legacy_postgresus() {
+    local container_name="postgresus"
+
+    # Check if container exists (running or stopped)
+    if docker ps -a --format '{{.Names}}' | grep -q "^${container_name}$"; then
+        log_info "Found legacy postgresus container, migrating to databasus..."
+        docker stop "$container_name" 2>/dev/null || true
+        docker rm -f "$container_name" 2>/dev/null || true
+        log_success "Legacy postgresus container removed. Databasus will use existing data via volume alias."
+    fi
+}
+
 #=============================================================================
 # USER DETECTION
 #=============================================================================