Auto-detect database driver in dbinit.sh instead of hardcoding pgsql

dbinit.sh now reads DBDriver from netxmsd.conf to support MariaDB/MySQL
without manual workarounds. For PostgreSQL, a new NETXMS_PG_TYPE env var
allows selecting between pure PostgreSQL (default) and TimescaleDB.

Author: alkk

CLAUDE.md

@@ -52,6 +52,9 @@ make clean-pin
 ### Database Initialization
 
 - Server container includes `dbinit.sh` for initial schema setup if it's empty
+- `dbinit.sh` auto-detects the database driver from `DBDriver` in `netxmsd.conf`
+- For PostgreSQL, the `NETXMS_PG_TYPE` environment variable selects between `pgsql` (default) and `tsdb` (TimescaleDB)
+- For MariaDB/MySQL, `nxdbmgr init` auto-detects the correct SQL template
 - Database management utilities available via `nxdbmgr` commands
 
 ## Configuration System

README.md

@@ -106,6 +106,23 @@ services:
       - KEYSTORE_PASSWORD=your_keystore_password
 ```
 
+## Database Driver Selection
+
+The database initialization script (`dbinit.sh`) automatically detects the database driver from the `DBDriver` setting in `netxmsd.conf`. Supported drivers:
+
+- **PostgreSQL** (`pgsql`): default, no additional configuration needed
+- **TimescaleDB**: set environment variable `NETXMS_PG_TYPE=tsdb` on the `init` service
+- **MariaDB/MySQL** (`mariadb` or `mysql`): set `DBDriver` in `netxmsd.conf` accordingly and swap the database image in `compose.yaml`
+
+Example for TimescaleDB:
+
+```yaml
+services:
+  init:
+    environment:
+      - NETXMS_PG_TYPE=tsdb
+```
+
 ## Database Operations
 
 ```sh

server/files/dbinit.sh

@@ -3,7 +3,12 @@
 nxdbmgr -q get DBLockStatus
 exitcode=$?
 if [ "$exitcode" -eq 5 ]; then
-    nxdbmgr init pgsql
+    driver=$(grep -im1 '^DBDriver' /etc/netxmsd.conf | cut -d= -f2 | tr -d '[:space:]' | sed 's/\.ddr$//' | tr '[:upper:]' '[:lower:]')
+    if [ "$driver" = "pgsql" ]; then
+        nxdbmgr init "${NETXMS_PG_TYPE:-pgsql}"
+    else
+        nxdbmgr init
+    fi
 else
     exit $exitcode
 fi