Created
May 12, 2019 15:40
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Startup script to create Grafana based kiosks.
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| #!/bin/bash | |
| # Copyright (c) 2019 Gonçalo Baltazar <me@goncalomb.com> | |
| # MIT License | |
| # Grafana Dashboard Kiosk using Google Chrome (or Chromium) | |
| # opens an independent google chrome instance with a custom | |
| # extension that injects Authorization headers for grafana | |
| # GRAFANA_KIOSK_URL and GRAFANA_KIOSK_API_KEY are required | |
| # GRAFANA_KIOSK_URL="https://example.com/grafana/" | |
| # GRAFANA_KIOSK_URL_PATH="/d/..." | |
| # GRAFANA_KIOSK_API_KEY="(grafana api key)" | |
| # GRAFANA_KIOSK_CHROME="google-chrome" | |
| [ -z "$GRAFANA_KIOSK_URL" ] && echo "Missing 'GRAFANA_KIOSK_URL'." && exit 1 | |
| [ -z "$GRAFANA_KIOSK_URL_PATH" ] && GRAFANA_KIOSK_URL_PATH="/" | |
| [ -z "$GRAFANA_KIOSK_API_KEY" ] && echo "Missing 'GRAFANA_KIOSK_API_KEY'." && exit 1 | |
| [ -z "$GRAFANA_KIOSK_CHROME" ] && GRAFANA_KIOSK_CHROME="google-chrome" | |
| CHROME_USER_DATA=$(mktemp -d) | |
| touch "$CHROME_USER_DATA/First Run" | |
| CHROME_EXTENSION=$(mktemp -d) | |
| cat > "$CHROME_EXTENSION/manifest.json" <<EOF | |
| { | |
| "name": "Grafana Kiosk", | |
| "version": "1.0", | |
| "manifest_version": 2, | |
| "permissions": [ | |
| "webRequest", | |
| "webRequestBlocking", | |
| "$GRAFANA_KIOSK_URL/*" | |
| ], | |
| "background": { | |
| "scripts": ["background.js"] | |
| } | |
| } | |
| EOF | |
| cat > "$CHROME_EXTENSION/background.js" <<EOF | |
| (function() { | |
| const networkFilters = { | |
| urls: [ | |
| "$GRAFANA_KIOSK_URL/*" | |
| ].map(url => url.replace(/:?\/+/g, (s) => s[0] == ":" ? s : "/")) | |
| }; | |
| chrome.webRequest.onBeforeSendHeaders.addListener((details) => { | |
| details.requestHeaders.push({ | |
| name: "Authorization", | |
| value: "Bearer $GRAFANA_KIOSK_API_KEY" | |
| }); | |
| return { requestHeaders: details.requestHeaders }; | |
| }, networkFilters, ["blocking", "requestHeaders"]); | |
| }()); | |
| EOF | |
| "$GRAFANA_KIOSK_CHROME" \ | |
| --user-data-dir="$CHROME_USER_DATA" \ | |
| --password-store=basic \ | |
| --load-extension="$CHROME_EXTENSION" \ | |
| --disable-extensions-except="$CHROME_EXTENSION" \ | |
| --disable-translate \ | |
| --start-maximized \ | |
| --kiosk \ | |
| "$GRAFANA_KIOSK_URL$GRAFANA_KIOSK_URL_PATH" | |
| rm -rf "$CHROME_USER_DATA" | |
| rm -rf "$CHROME_EXTENSION" |
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