Allow connection config via environment variable

For the connection option environment variable handling is added. The connection string comes in handy if using the exporter via container deployment so that no credentials or otherwise sensible information is visible in the commandline or process list. Signed-off-by: Roland Sommer <[email protected]>
prometheus-community · Aug 1, 2024 · 461c186 · 461c186
1 parent 480a6a2
commit 461c186
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pgbouncer_exporter.go b/pgbouncer_exporter.go
@@ -46,7 +46,7 @@ func main() {
 	flag.AddFlags(kingpin.CommandLine, promlogConfig)
 
 	var (
-		connectionStringPointer = kingpin.Flag("pgBouncer.connectionString", "Connection string for accessing pgBouncer.").Default("postgres://postgres:@localhost:6543/pgbouncer?sslmode=disable").String()
+		connectionStringPointer = kingpin.Flag("pgBouncer.connectionString", "Connection string for accessing pgBouncer.").Default("postgres://postgres:@localhost:6543/pgbouncer?sslmode=disable").Envar("PGBOUNCER_EXPORTER_CONNECTION_STRING").String()
 		metricsPath             = kingpin.Flag("web.telemetry-path", "Path under which to expose metrics.").Default("/metrics").String()
 		pidFilePath             = kingpin.Flag("pgBouncer.pid-file", pidFileHelpText).Default("").String()
 	)