Add script to install latest version of this plugin

Author: BenediktSeidl

utils/install_latest.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+set -e
+if ! command -v jq > /dev/null || ! command -v grafana-cli > /dev/null; then
+  echo "ERROR: This script can not run without jq or grafana-cli binaries."
+  exit 1
+fi
+DOWNLOAD_URL=$(wget -O- -q https://api.github.com/repos/tribe29/grafana-checkmk-datasource/releases/latest | jq -r ".assets[0].browser_download_url")
+COMMAND="grafana-cli --pluginUrl ""$DOWNLOAD_URL"" plugins install tribe-29-checkmk-datasource"
+
+# we have to make sure that the grafana-cli command is executed as grafana user
+# see https://github.com/grafana/grafana/issues/25367
+if [ "$(id -nu)" == "root" ]; then
+  # cd is necessary, because grafana-cli will access `$PWD`. if executed as
+  # root, `$PWD` may point to `/root` and the grafana user has no permissions
+  # to access that.
+  sudo -u grafana bash -c "cd; $COMMAND"
+  exit 0
+fi
+if [ "$(id -nu)" == "grafana" ]; then
+  $COMMAND
+  exit 0
+fi
+echo "ERROR: This script hast to be executed as root or grafana user"
+exit 1