fix(thingsboard): keep the package defaults in thingsboard.conf

The install replaced the file, which dropped JAVA_OPTS with install.data_dir, so creating a tenant failed. The DB settings are now appended, and an update restores the defaults on existing containers. The package upgrade keeps the edited file. Fixes #18483.

ct/thingsboard.sh

@@ -31,12 +31,30 @@ function update_script() {
   fi
 
   JAVA_VERSION="25" setup_java
+
+  if ! grep -q "install.data_dir" /etc/thingsboard/conf/thingsboard.conf; then
+    msg_info "Restoring Package Defaults"
+    cat <<'EOF' >>/etc/thingsboard/conf/thingsboard.conf
+
+export JAVA_OPTS="$JAVA_OPTS -Dplatform=deb -Dinstall.data_dir=/usr/share/thingsboard/data"
+export JAVA_OPTS="$JAVA_OPTS -Xlog:gc*,heap*,age*,safepoint=debug:file=/var/log/thingsboard/gc.log:time,uptime,level,tags:filecount=10,filesize=10M"
+export JAVA_OPTS="$JAVA_OPTS -XX:+IgnoreUnrecognizedVMOptions -XX:+HeapDumpOnOutOfMemoryError"
+export JAVA_OPTS="$JAVA_OPTS -XX:-UseBiasedLocking -XX:+UseTLAB -XX:+ResizeTLAB -XX:+PerfDisableSharedMem -XX:+UseCondCardMark"
+export JAVA_OPTS="$JAVA_OPTS -XX:+UseG1GC -XX:MaxGCPauseMillis=500 -XX:+UseStringDeduplication -XX:+ParallelRefProcEnabled -XX:MaxTenuringThreshold=10"
+export LOG_FILENAME=thingsboard.out
+export LOADER_PATH=/usr/share/thingsboard/conf,/usr/share/thingsboard/extensions
+export SQL_DATA_FOLDER=/usr/share/thingsboard/data/sql
+EOF
+    systemctl restart thingsboard
+    msg_ok "Restored Package Defaults"
+  fi
+
   if check_for_gh_release "thingsboard" "thingsboard/thingsboard"; then
     msg_info "Stopping Service"
     systemctl stop thingsboard
     msg_ok "Stopped Service"
 
-    fetch_and_deploy_gh_release "thingsboard" "thingsboard/thingsboard" "binary" "latest" "/tmp" "thingsboard-*.deb"
+    DPKG_FORCE_CONFOLD=1 fetch_and_deploy_gh_release "thingsboard" "thingsboard/thingsboard" "binary" "latest" "/tmp" "thingsboard-*.deb"
 
     msg_info "Running Database Upgrade"
     $STD /usr/share/thingsboard/bin/install/upgrade.sh

install/thingsboard-install.sh

@@ -26,7 +26,8 @@ PG_DB_NAME="thingsboard_db" PG_DB_USER="thingsboard" setup_postgresql_db
 fetch_and_deploy_gh_release "thingsboard" "thingsboard/thingsboard" "binary" "latest" "/tmp" "thingsboard-*.deb"
 
 msg_info "Configuring ThingsBoard"
-cat <<EOF >/etc/thingsboard/conf/thingsboard.conf
+cat <<EOF >>/etc/thingsboard/conf/thingsboard.conf
+
 # DB Configuration
 export DATABASE_TS_TYPE=sql
 export SPRING_DATASOURCE_URL=jdbc:postgresql://localhost:5432/${PG_DB_NAME}