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grafana dashboards
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‎examples/docker/books/chronos_npm_package/controllers/GrafanaPanel.js

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function createGrafanaPanelObject(
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metric,
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datasource,
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graphType
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) {
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// Create a panel object to be used within dashboards.
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const panel = {
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"datasource": datasource,
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"fieldConfig": {
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"defaults": {
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"color": {
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"mode": "palette-classic"
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},
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"custom": {
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"axisCenteredZero": false,
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"axisColorMode": "text",
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"axisLabel": "",
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"axisPlacement": "auto",
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"barAlignment": 0,
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"drawStyle": "line",
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"fillOpacity": 40,
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"gradientMode": "opacity",
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"hideFrom": {
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"legend": false,
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"tooltip": false,
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"viz": false
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},
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"lineInterpolation": "smooth",
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"lineWidth": 2,
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"pointSize": 5,
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"scaleDistribution": {
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"type": "linear"
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},
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"showPoints": "auto",
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"spanNulls": false,
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"stacking": {
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"group": "A",
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"mode": "none"
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},
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"thresholdsStyle": {
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"mode": "off"
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}
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},
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"mappings": [],
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{
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"color": "green",
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"value": null
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},
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{
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"color": "red",
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"value": 80
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}
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]
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},
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"min": 0
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},
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"overrides": []
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},
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"gridPos": {
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"h": 8,
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"w": 12,
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"x": 0,
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"y": 0
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},
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"options": {
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"legend": {
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"calcs": [],
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"displayMode": "list",
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"placement": "bottom",
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"showLegend": true
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},
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"tooltip": {
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"mode": "single",
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"sort": "none"
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},
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// "displayLabels": [
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// "percent"
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// ]
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},
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"id": 1,
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"targets": [{
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"datasource": datasource,
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"editorMode": "builder",
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"expr": metric.metric.replace(/.*\/.*\//g, ''),
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"instant": false,
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"range": true,
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"refId": "A"
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}],
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"title": metric.metric.replace(/.*\/.*\//g, ''),
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"type": graphType,
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"interval": "2s"
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}
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return panel;
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}
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function updateGrafanaPanelObject(
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metric,
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datasource,
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graphType
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) {
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// Create a panel object to be used within dashboards.
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const panel = {
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"datasource": datasource,
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"fieldConfig": {
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"defaults": {
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"color": {
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"mode": "palette-classic"
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},
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"custom": {
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"axisCenteredZero": false,
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"axisColorMode": "text",
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"axisLabel": "",
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"axisPlacement": "auto",
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"barAlignment": 0,
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"drawStyle": "line",
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"fillOpacity": 40,
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"gradientMode": "opacity",
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"hideFrom": {
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"legend": false,
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"tooltip": false,
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"viz": false
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},
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"lineInterpolation": "smooth",
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"lineWidth": 2,
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"pointSize": 5,
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"scaleDistribution": {
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"type": "linear"
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},
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"showPoints": "auto",
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"spanNulls": false,
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"stacking": {
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"group": "A",
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"mode": "none"
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},
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"thresholdsStyle": {
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"mode": "off"
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}
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},
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"mappings": [],
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{
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"color": "green",
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"value": null
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},
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{
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"color": "red",
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"value": 80
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}
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]
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},
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"min": 0
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},
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"overrides": []
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},
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"gridPos": {
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"h": 8,
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"w": 12,
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"x": 0,
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"y": 0
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},
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"options": {
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"legend": {
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"calcs": [],
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"displayMode": "list",
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"placement": "bottom",
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"showLegend": true
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},
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"tooltip": {
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"mode": "single",
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"sort": "none"
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},
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"displayLabels": [
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"percent"
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]
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},
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"id": 1,
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"targets": [{
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"datasource": datasource,
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"editorMode": "builder",
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"expr": metric.replace(/.*\/.*\//g, ''),
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"instant": false,
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"range": true,
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"refId": "A"
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}],
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"title": metric.replace(/.*\/.*\//g, ''),
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"type": graphType,
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"interval": "2s"
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}
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return panel;
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}
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module.exports = { createGrafanaPanelObject, updateGrafanaPanelObject };

‎examples/docker/books/chronos_npm_package/controllers/createGrafanaDashboard.js

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const axios = require('axios');
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const createGrafanaPanelObject = require('./createGrafanaPanelObject,js');
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async function createGrafanaDashboard(
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metrix,
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datasource,
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) {
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// create dashboard object boilerplate
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const dashboard = {
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"dashboard": {
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"id": null,
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"uid": metric.meric.replace(/.*\/.*\//g, ''),
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"title": metric.meric.replace(/.*\/.*\//g, ''),
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"tags": ["templated"],
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"timezone": "browser",
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"schemaVersion": 16,
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"version": 0,
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"refresh": "10s",
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panels: [],
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},
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folderId: 0,
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overwrite: true,
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};
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// push panel into dashboard object with a line for each metric in promQLQueries object
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dashboard.dashboard.panels.push(createGrafanaPanelObject(metrix, datasource));
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try {
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// POST request to Grafana Dashboard API to create a dashboard
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const dashboardResponse = await axios.post(
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'http://localhost:32000/api/dashboards/db',
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JSON.stringify(dashboard),
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{
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headers: {
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'Content-Type': 'application/json',
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'Authorization': 'Bearer glsa_pITqM0BIfNHNKL4PsXJqmTYQl0D9QGxF_486f63e1'
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},
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}
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);
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// Descriptive error log for developers
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if (dashboardResponse.status >= 400) {
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console.log(
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'Error with POST request to Grafana Dashboards API. In createGrafanaDashboardObject.'
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);
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} else {
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// A simple console log to show when graphs are done being posted to Grafana.
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console.log(`📊 Grafana graphs 📊 for the ${containerName} container are ready!!`);
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}
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} catch (err) {
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console.log(err);
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}
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}
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module.exports = createGrafanaDashboard;

‎examples/docker/books/chronos_npm_package/controllers/getDataSource.js

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const axios = require('axios');
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async function getGrafanaDatasource() {
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// Fetch datasource information from grafana API.
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// This datasource is PRECONFIGURED on launch using grafana config.
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const datasourceResponse = await axios.get('http://localhost:32000/api/datasources');
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// Create a datasource object to be used within panels.
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const datasource = {
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type: datasourceResponse[0].type,
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uid: datasourceResponse[0].uid,
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};
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return datasource;
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}
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module.exports = getGrafanaDatasource;

‎examples/docker/books/chronos_npm_package/models/GrafanaAPIKeyModel.js

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const mongoose = require('mongoose');
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const { Schema } = mongoose;
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const GrafanaAPIKeySchema = new Schema({
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token: {
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type: String,
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unique: true,
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}
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});
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module.exports = mongoose.model('grafanaAPI', GrafanaAPIKeySchema);

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