mbtileserver - Added initial systemd user-level service for the raster tile server

overlay/etc/skel/.config/systemd/user/default.target.wants/et-service-mbtileserver.service

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+../et-service-mbtileserver.service

overlay/etc/skel/.config/systemd/user/et-service-mbtileserver.service

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+# Author  : Gaston Gonzalez
+# Date    : 5 July 2025
+# Purpose : User systemd unit file for EmComm Tools raster tile service
+#
+# Usage: 
+#  Check status       : systemctl --user status et-service-mbtileservice
+#  Start service      : systemctl --user start et-service-mbtileservice
+#  Stop service       : systemctl --user stop et-service-mbtileservice
+#  Reload this config : systemctl --user daemon-reload
+
+[Unit]
+Description=EmComm Tools raster tile service
+
+[Service]
+ExecStart=/opt/emcomm-tools/bin/et-mbtileserver
+Restart=always
+
+[Install]
+WantedBy=default.target

overlay/etc/skel/.local/share/emcomm-tools/mbtileserver/tilesets/README.md

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+Copy your `.mbtiles` file here.

overlay/opt/emcomm-tools/bin/et-mbtileserver

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+#!/bin/bash
+#
+# Author  : Gaston Gonzalez
+# Date    : 5 July 2025
+# Purpose : Wrapper script for starting the raster tile server
+#
+# Preconditions:
+# 1. At least one .mbtiles files exist in the tileset directory
+#
+# Postconditions:
+# 1. mbtileserver is started
+# 2. Tile server available at http://localhost:8000/services
+
+TILESERVER_HOME="${HOME}/.local/share/emcomm-tools/mbtileserver"
+TILESERVER_TILE_DIR="${TILESERVER_HOME}/tilesets"
+
+start() {
+  CWD_DIR=$(pwd)
+
+  cd ${TILESERVER_HOME}
+  CMD="mbtileserver"
+  et-log "Starting raster tile server in ${TILESERVER_HOME} with: ${CMD}"
+
+  ${CMD}
+
+  cd ${CWD_DIR}
+}
+
+if [[ ! -e ${TILESERVER_TILE_DIR} ]]; then
+  et-log "Tile set directory does not exist: ${TILESERVER_TILE_DIR}."
+  exit 1
+fi
+
+ls ${TILESERVER_TILE_DIR}/*.mbtiles
+if [[ $? -ne 0 ]]; then
+  et-log "Can't start tile server. No .mbtiles in ${TILESERVER_TILE_DIR}"
+  exit 1
+fi
+
+start