Merge pull request #228 from onprem/prefix-header

Allow configuring `--web.prefix-header` of query.

CHANGELOG.md

@@ -16,10 +16,10 @@ We use *breaking* word for marking changes that are not backward compatible (rel
 ### Breaking Changes
 
 ### Changed
-- [226](https://github.com/thanos-io/kube-thanos/pull/226) Only schedule thanos components on linux nodes.
+- [#226](https://github.com/thanos-io/kube-thanos/pull/226) Only schedule thanos components on linux nodes.
 
 ### Added
-
+- [#228](https://github.com/thanos-io/kube-thanos/pull/228) Allow configuring `--web.prefix-header` of query.
 ### Fixed
 
 ## [v0.19.0](https://github.com/thanos-io/kube-thanos/tree/v0.19.0) (2020-04-19)

jsonnet/kube-thanos/kube-thanos-query.libsonnet

@@ -11,6 +11,7 @@ local defaults = {
  replicaLabels: error 'must provide replicaLabels',
  stores: ['dnssrv+_grpc._tcp.thanos-store.%s.svc.cluster.local' % defaults.namespace],
  externalPrefix: '',
+ prefixHeader: '',
  autoDownsampling: true,
  resources: {},
  queryTimeout: '',
@@ -114,6 +115,11 @@ function(params) {
  '--web.external-prefix=' + tq.config.externalPrefix,
  ] else []
  ) +
+ (
+ if tq.config.prefixHeader != '' then [
+ '--web.prefix-header=' + tq.config.prefixHeader,
+ ] else []
+ ) +
  (
  if tq.config.queryTimeout != '' then [
  '--query.timeout=' + tq.config.queryTimeout,