35 lines
1.3 KiB
Markdown
35 lines
1.3 KiB
Markdown
# Grafana
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Grafana is an open source analytics and interactive visualization tool. It provides charts, graphs, and alerts for the web when connected to supported data sources.
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As a visualization tool, Grafana is a popular component in monitoring stacks, often used in combination with time series databases such as InfluxDB.
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## Connection
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To connect Grafana to our Influx-DB, you have to create a data source.
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The `URL`of our InfluxDB is `http://influxdb:8086`. In InfluxDB you have to create a `token` to connect: [Load Data -> API Tokens](http://localhost:8086/orgs/721027680173bf2f/load-data/tokens).
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You can use this token to [create a connection from Grafana to Influx-DB](http://localhost:3000/datasources/).
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After having a connection to a database you can easily create an own dashboard in Grafana.
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Here's the demo snippet (directly copyied from Influx Data Explorer) and the screen shot.
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```
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from(bucket: "test")
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|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
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|> filter(fn: (r) => r["_measurement"] == "msg")
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|> filter(fn: (r) => r["_field"] == "value")
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|> aggregateWindow(every: v.windowPeriod, fn: mean, createEmpty: false)
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|> yield(name: "mean")
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```
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