Revert "Add chart URL tool"
File | Commit | Size | Mode | Time |
---|---|---|---|---|
LICENSE | Initial commit | 1 KiB | -rw-r--r-- | 4 years ago |
README.md | Document the label option | 1.7 KiB | -rw-r--r-- | 4 years ago |
go.mod | Add label support | 165 B | -rw-r--r-- | 4 years ago |
go.sum | Add until option | 6.4 KiB | -rw-r--r-- | 4 years ago |
main.go | Fix handling of absolute staticDir paths | 7.6 KiB | -rw-r--r-- | 2 years ago |
static | Add chart URL tool | NaN B | d--------- | 2 years ago |
chartsrv
chartsrv is a dead-simple web application which runs Prometheus queries and
charts the result as an SVG. You make a dashboard by putting a lot of these
images into a web page. You make it refresh by adding
<meta id="refresh" http-equiv="refresh" content="5">
to the header. Ta-da!
This is a live graph from metrics.sr.ht
Running the daemon
$ go build -o chartsrv main.go $ ./chartsrv https://prometheus.example.org Listening on :8142
Forward /chart.svg
to this address with your favorite reverse proxy. If you
want to listen to some other port, pass a second argument like :1337
.
Usage
Create a URL like https://chartsrv.example.org/chart.svg?query=...&args...
and
set the query parameters as appropriate:
- query: required. Prometheus query to execute.
- title: chart title
- stacked: set to create an area chart instead of a line chart
- since, until: time.ParseDuration to set distance in the past to start charting from or until
- width, height: adjust chart dimensions in inches
- step: number of seconds between data points
- min, max: Y axis limits
- label: template for the chart legend in Go’s text/template format. All
values provided by prometheus as tags are available - to label each matching
result by the instance, for instance, use
{{.instance}}