Sidecar: increase default prometheus timeout (#8192)

Adjust the default get-config timeout to match the default get-config
interval.

Signed-off-by: Michael Hoffmann <[email protected]>

Author: MichaHoffmann

CHANGELOG.md

@@ -15,6 +15,8 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 
 ### Changed
 
+- [#8192](https://github.com/thanos-io/thanos/pull/8192) Sidecar: fix default get config timeout
+
 ### Removed
 
 ### Fixed

cmd/thanos/config.go

@@ -136,7 +136,7 @@ func (pc *prometheusConfig) registerFlag(cmd extkingpin.FlagClause) *prometheusC
 		Default("30s").DurationVar(&pc.getConfigInterval)
 	cmd.Flag("prometheus.get_config_timeout",
 		"Timeout for getting Prometheus config").
-		Default("5s").DurationVar(&pc.getConfigTimeout)
+		Default("30s").DurationVar(&pc.getConfigTimeout)
 	pc.httpClient = extflag.RegisterPathOrContent(
 		cmd,
 		"prometheus.http-client",

docs/components/sidecar.md

@@ -161,7 +161,7 @@ Flags:
                                  https://thanos.io/tip/thanos/storage.md/#configuration
       --prometheus.get_config_interval=30s
                                  How often to get Prometheus config
-      --prometheus.get_config_timeout=5s
+      --prometheus.get_config_timeout=30s
                                  Timeout for getting Prometheus config
       --prometheus.http-client=<content>
                                  Alternative to 'prometheus.http-client-file'