feat: Helm: Add extraContainers to read pods (#12243)

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 ##### Enhancements
 
+* [12243](https://github.com/grafana/loki/pull/12243) **lllamnyp**: Helm: Add extraContainers to read pods.
 * [11840](https://github.com/grafana/loki/pull/11840) **jeschkies**: Allow custom usage trackers for ingested and discarded bytes metric.
 * [11814](https://github.com/grafana/loki/pull/11814) **kavirajk**: feat: Support split align and caching for instant metric query results
 * [11851](https://github.com/grafana/loki/pull/11851) **elcomtik**: Helm: Allow the definition of resources for GrafanaAgent pods.

docs/sources/setup/install/helm/reference.md

@@ -3345,6 +3345,15 @@ null
 			<td><pre lang="json">
 []
 </pre>
+</td>
+		</tr>
+		<tr>
+			<td>read.extraContainers</td>
+			<td>list</td>
+			<td>Containers to add to the read pods</td>
+			<td><pre lang="json">
+[]
+</pre>
 </td>
 		</tr>
 		<tr>

production/helm/loki/CHANGELOG.md

@@ -13,6 +13,10 @@ Entries should include a reference to the pull request that introduced the chang
 
 [//]: # (<AUTOMATED_UPDATES_LOCATOR> : do not remove this line. This locator is used by the CI pipeline to automatically create a changelog entry for each new Loki release. Add other chart versions and respective changelog entries bellow this line.)
 
+## 5.45.0
+
+- [CHANGE] Add extraContainers parameter for the read pod
+
 ## 5.44.4
 
 - [ENHANCEMENT] Use http_listen_port for `compactorAddress`.

production/helm/loki/Chart.yaml

@@ -3,7 +3,7 @@ name: loki
 description: Helm chart for Grafana Loki in simple, scalable mode
 type: application
 appVersion: 2.9.4
-version: 5.44.4
+version: 5.45.0
 home: https://grafana.github.io/helm-charts
 sources:
   - https://github.com/grafana/loki

production/helm/loki/README.md

@@ -1,6 +1,6 @@
 # loki
 
-![Version: 5.44.4](https://img.shields.io/badge/Version-5.44.4-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.9.4](https://img.shields.io/badge/AppVersion-2.9.4-informational?style=flat-square)
+![Version: 5.45.0](https://img.shields.io/badge/Version-5.45.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.9.4](https://img.shields.io/badge/AppVersion-2.9.4-informational?style=flat-square)
 
 Helm chart for Grafana Loki in simple, scalable mode
 

production/helm/loki/templates/read/deployment-read.yaml

@@ -115,6 +115,9 @@ spec:
             {{- end }}
           resources:
             {{- toYaml .Values.read.resources | nindent 12 }}
+        {{- with .Values.read.extraContainers }}
+        {{- toYaml . | nindent 8}}
+        {{- end }}
       {{- with .Values.read.affinity }}
       affinity:
         {{- tpl . $ | nindent 8 }}

production/helm/loki/templates/read/statefulset-read.yaml

@@ -128,6 +128,9 @@ spec:
             {{- end }}
           resources:
             {{- toYaml .Values.read.resources | nindent 12 }}
+        {{- with .Values.read.extraContainers }}
+        {{- toYaml . | nindent 8}}
+        {{- end }}
       {{- with .Values.read.affinity }}
       affinity:
         {{- tpl . $ | nindent 8 }}

production/helm/loki/values.yaml

@@ -993,6 +993,8 @@ read:
   legacyReadTarget: false
   # -- Additional CLI args for the read
   extraArgs: []
+  # -- Containers to add to the read pods
+  extraContainers: []
   # -- Environment variables to add to the read pods
   extraEnv: []
   # -- Environment variables from secrets or configmaps to add to the read pods