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Merged
merged 11 commits into from
Jul 22, 2025
+108 −0
Merged

feat(helm): add location snippet to nginx config #18105

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f393503
add location snippet
joschi36 Jun 13, 2025
1bfe153
add location snippet to values.yaml
joschi36 Jun 14, 2025
3aee520
fix locationSnippet indent
joschi36 Jun 14, 2025
ba7f60a
use suggested patten
joschi36 Jul 9, 2025
2d459b1
implement suggested change from @jkroepke
joschi36 Jul 15, 2025
ba259a6
Merge remote-tracking branch 'upstream/main' into patch-2
joschi36 Jul 15, 2025
b824608
add changelog
joschi36 Jul 15, 2025
f441667
update values doc to include templating note
joschi36 Jul 15, 2025
c577121
Merge branch 'main' into patch-2
JStickler Jul 18, 2025
c1c9e3c
Generate Helm Chart reference
nicolevanderhoeven Jul 21, 2025
371949c
Merge branch 'main' into patch-2
nicolevanderhoeven Jul 22, 2025
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96 changes: 96 additions & 0 deletions production/helm/loki/templates/_helpers.tpl
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Original file line number Diff line number Diff line change
Expand Up @@ -817,6 +817,9 @@ http {
{{- end }}

location = / {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
return 200 'OK';
auth_basic off;
}
Expand Down Expand Up @@ -888,120 +891,207 @@ http {

{{- if .Values.loki.ui.gateway.enabled }}
location ^~ /ui {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $distributorUrl }}$request_uri;
}
{{- end }}

# Distributor
location = /api/prom/push {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $distributorUrl }}$request_uri;
}
location = /loki/api/v1/push {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $distributorUrl }}$request_uri;
}
location = /distributor/ring {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $distributorUrl }}$request_uri;
}
location = /otlp/v1/logs {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $distributorUrl }}$request_uri;
}

# Ingester
location = /flush {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $ingesterUrl }}$request_uri;
}
location ^~ /ingester/ {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $ingesterUrl }}$request_uri;
}
location = /ingester {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
internal; # to suppress 301
}

# Ring
location = /ring {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $ingesterUrl }}$request_uri;
}

# MemberListKV
location = /memberlist {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $ingesterUrl }}$request_uri;
}

# Ruler
location = /ruler/ring {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $rulerUrl }}$request_uri;
}
location = /api/prom/rules {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $rulerUrl }}$request_uri;
}
location ^~ /api/prom/rules/ {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $rulerUrl }}$request_uri;
}
location = /loki/api/v1/rules {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $rulerUrl }}$request_uri;
}
location ^~ /loki/api/v1/rules/ {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $rulerUrl }}$request_uri;
}
location = /prometheus/api/v1/alerts {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $rulerUrl }}$request_uri;
}
location = /prometheus/api/v1/rules {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $rulerUrl }}$request_uri;
}

# Compactor
location = /compactor/ring {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $compactorUrl }}$request_uri;
}
location = /loki/api/v1/delete {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $compactorUrl }}$request_uri;
}
location = /loki/api/v1/cache/generation_numbers {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $compactorUrl }}$request_uri;
}

# IndexGateway
location = /indexgateway/ring {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $indexGatewayUrl }}$request_uri;
}

# QueryScheduler
location = /scheduler/ring {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $schedulerUrl }}$request_uri;
}

# Config
location = /config {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $ingesterUrl }}$request_uri;
}

{{- if and .Values.enterprise.enabled .Values.enterprise.adminApi.enabled }}
# Admin API
location ^~ /admin/api/ {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $backendUrl }}$request_uri;
}
location = /admin/api {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
internal; # to suppress 301
}
{{- end }}


# QueryFrontend, Querier
location = /api/prom/tail {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $queryFrontendUrl }}$request_uri;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
location = /loki/api/v1/tail {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $queryFrontendUrl }}$request_uri;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
location ^~ /api/prom/ {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
proxy_pass {{ $queryFrontendUrl }}$request_uri;
}
location = /api/prom {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
internal; # to suppress 301
}
# if the X-Query-Tags header is empty, set a noop= without a value as empty values are not logged
Expand All @@ -1010,11 +1100,17 @@ http {
set $query_tags "noop=";
}
location ^~ /loki/api/v1/ {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
# pass custom headers set by Grafana as X-Query-Tags which are logged as key/value pairs in metrics.go log messages
proxy_set_header X-Query-Tags "${query_tags},user=${http_x_grafana_user},dashboard_id=${http_x_dashboard_uid},dashboard_title=${http_x_dashboard_title},panel_id=${http_x_panel_id},panel_title=${http_x_panel_title},source_rule_uid=${http_x_rule_uid},rule_name=${http_x_rule_name},rule_folder=${http_x_rule_folder},rule_version=${http_x_rule_version},rule_source=${http_x_rule_source},rule_type=${http_x_rule_type}";
proxy_pass {{ $queryFrontendUrl }}$request_uri;
}
location = /loki/api/v1 {
{{- with .Values.gateway.nginxConfig.locationSnippet }}
{{- . | nindent 6 }}
{{- end }}
internal; # to suppress 301
}

Expand Down
2 changes: 2 additions & 0 deletions production/helm/loki/values.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -1177,6 +1177,8 @@ gateway:
# -- Allows appending custom configuration to the http block, passed through the `tpl` function to allow templating
httpSnippet: >-
{{ if .Values.loki.tenants }}proxy_set_header X-Scope-OrgID $remote_user;{{ end }}
# -- Allows appending custom configuration inside every location block, useful for authentication or setting headers that are not inherited from the server block.
locationSnippet: ""
# -- Allows customizing the `client_max_body_size` directive
clientMaxBodySize: 4M
# -- Whether ssl should be appended to the listen directive of the server block or not.
Expand Down
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