fix(helm): Add validation for loki.storage.bucketNames

production/helm/loki/CHANGELOG.md

@@ -12,6 +12,9 @@ Entries should be ordered as follows:
 Entries should include a reference to the pull request that introduced the change.
 
 [//]: # (<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.)
+
+- [BUGFIX] Add validation for loki.storage.bucketNames [#13781](https://github.com/grafana/loki/pull/13781)
+
 ## 6.33.0
 
 - [FEATURE] Allow passing tenant password hash instead of password. [#17049](https://github.com/grafana/loki/pull/17049)

production/helm/loki/templates/validate.yaml

@@ -38,4 +38,19 @@
 
 {{- if and (empty .Values.loki.schemaConfig) (empty .Values.loki.structuredConfig.schema_config) (not .Values.loki.useTestSchema) }}
 {{- fail "You must provide a schema_config for Loki, one is not provided as this will be individual for every Loki cluster. See https://grafana.com/docs/loki/latest/operations/storage/schema/ for schema information. For quick testing (with no persistence) add `--set loki.useTestSchema=true`"}}
+{{- end }}
+
+{{- if (eq (include "loki.isUsingObjectStorage" . ) "true") }}
+{{- $bucketNames := .Values.loki.storage.bucketNames -}}
+{{- if not (hasKey $bucketNames "chunks") }}
+{{- fail "Please define loki.storage.bucketName.chunks" }}
+{{- end }}
+
+{{- if not (hasKey $bucketNames "ruler") }}
+{{- fail "Please define loki.storage.bucketName.ruler" }}
+{{- end }}
+
+{{- if and (.Values.enterprise.adminApi.enabled) (not (hasKey $bucketNames "admin")) }}
+{{- fail "Please define loki.storage.bucketName.admin" }}
+{{- end }}
 {{- end }}