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Add environment variable control for most command line options.

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Adds the following environment variables for overriding defaults:
* `PG_EXPORTER_WEB_LISTEN_ADDRESS`
* `PG_EXPORTER_WEB_TELEMETRY_PATH`
* `PG_EXPORTER_EXTEND_QUERY_PATH`

Closes .
This commit is contained in:
Will Rouesnel 2018-02-19 23:21:14 +11:00
parent 946aa5db45
commit a52beb60cb
1 changed files with 5 additions and 5 deletions

10
postgres_exporter.go
View File

@ -32,9 +32,9 @@ import (
var Version = "0.0.1" var Version = "0.0.1"
var ( var (
listenAddress = kingpin.Flag("web.listen-address", "Address to listen on for web interface and telemetry.").Default(":9187").String() listenAddress = kingpin.Flag("web.listen-address", "Address to listen on for web interface and telemetry.").Default(":9187").OverrideDefaultFromEnvar("PG_EXPORTER_WEB_LISTEN_ADDRESS").String()
metricPath = kingpin.Flag("web.telemetry-path", "Path under which to expose metrics.").Default("/metrics").String() metricPath = kingpin.Flag("web.telemetry-path", "Path under which to expose metrics.").Default("/metrics").OverrideDefaultFromEnvar("PG_EXPORTER_WEB_TELEMETRY_PATH").String()
queriesPath = kingpin.Flag("extend.query-path", "Path to custom queries to run.").Default("").String() queriesPath = kingpin.Flag("extend.query-path", "Path to custom queries to run.").Default("").OverrideDefaultFromEnvar("PG_EXPORTER_EXTEND_QUERY_PATH").String()
onlyDumpMaps = kingpin.Flag("dumpmaps", "Do not run, simply dump the maps.").Bool() onlyDumpMaps = kingpin.Flag("dumpmaps", "Do not run, simply dump the maps.").Bool()
) )
@ -1108,8 +1108,8 @@ func main() {
http.Handle(*metricPath, promhttp.Handler()) http.Handle(*metricPath, promhttp.Handler())
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "Content-Type:text/plain; charset=UTF-8") // nolint: errcheck w.Header().Set("Content-Type", "Content-Type:text/plain; charset=UTF-8") // nolint: errcheck
w.Write(landingPage) // nolint: errcheck w.Write(landingPage) // nolint: errcheck
}) })
log.Infof("Starting Server: %s", *listenAddress) log.Infof("Starting Server: %s", *listenAddress)