31 lines
1.1 KiB
Markdown
31 lines
1.1 KiB
Markdown
# Grafana
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Grafana is amn open source analytics and interactive visualization toll. 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 `token`in Influx-DB.
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![Token](../flow/docs/images/influx-create-token.png)
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You can use this token to create a connection from Grafana to Influx-DB.
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![Connection](./docs/images/database-connection.png)
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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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![Example Dashboard](./docs/images/grafana-example-dashboard.png)
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