fix: use legacy metrics exporter images

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+- PostgreSQL and Redis metrics exporters now use Bitnami Legacy images when enabled. [#136](https://github.com/sourcebot-dev/sourcebot-helm-chart/pull/136)
+
 ## [0.1.104] - 2026-08-27
 
 ### Changed

charts/sourcebot/README.md

@@ -37,6 +37,7 @@ Sourcebot is a self-hosted tool that helps you understand your codebase.
 | postgresql.deploy | bool | `true` | Deploy PostgreSQL subchart. Set to false to use an external PostgreSQL instance. |
 | postgresql.host | string | `""` | PostgreSQL host (only used if deploy is false) |
 | postgresql.image.repository | string | `"bitnamilegacy/postgresql"` | Overwrite default repository of helm chart to point to non-paid bitnami images |
+| postgresql.metrics.image.repository | string | `"bitnamilegacy/postgres-exporter"` | Overwrite default metrics exporter repository to point to non-paid bitnami images |
 | postgresql.port | int | `5432` | PostgreSQL port |
 | postgresql.primary.persistence.enabled | bool | `true` |  |
 | postgresql.primary.persistence.size | string | `"8Gi"` |  |
@@ -52,6 +53,7 @@ Sourcebot is a self-hosted tool that helps you understand your codebase.
 | redis.deploy | bool | `true` | Deploy Redis/Valkey subchart. Set to false to use an external Redis instance. |
 | redis.host | string | `""` | Redis host (only used if deploy is false) |
 | redis.image.repository | string | `"bitnamilegacy/valkey"` | Overwrite default repository of helm chart to point to non-paid bitnami images |
+| redis.metrics.image.repository | string | `"bitnamilegacy/redis-exporter"` | Overwrite default metrics exporter repository to point to non-paid bitnami images |
 | redis.port | int | `6379` | Redis port |
 | redis.primary.resources.limits.cpu | string | `"1"` | CPU limit for the Redis container |
 | redis.primary.resources.limits.memory | string | `"1.5Gi"` | Memory limit for the Redis container |

charts/sourcebot/tests/postgresql_metrics_image_test.yaml

@@ -0,0 +1,14 @@
+suite: test bundled PostgreSQL metrics image
+templates:
+  - charts/postgresql/templates/primary/statefulset.yaml
+tests:
+  - it: should use the legacy exporter image when metrics are enabled
+    values:
+      - ../values.lint.yaml
+    set:
+      postgresql.metrics.enabled: true
+    asserts:
+      - equal:
+          path: spec.template.spec.containers[1].image
+          value: docker.io/bitnamilegacy/postgres-exporter:0.16.0-debian-12-r8
+        template: charts/postgresql/templates/primary/statefulset.yaml

charts/sourcebot/tests/redis_metrics_image_test.yaml

@@ -0,0 +1,18 @@
+suite: test bundled Redis metrics image
+templates:
+  - charts/redis/templates/configmap.yaml
+  - charts/redis/templates/health-configmap.yaml
+  - charts/redis/templates/scripts-configmap.yaml
+  - charts/redis/templates/secret.yaml
+  - charts/redis/templates/primary/application.yaml
+tests:
+  - it: should use the legacy exporter image when metrics are enabled
+    values:
+      - ../values.lint.yaml
+    set:
+      redis.metrics.enabled: true
+    asserts:
+      - equal:
+          path: spec.template.spec.containers[1].image
+          value: docker.io/bitnamilegacy/redis-exporter:1.67.0-debian-12-r7
+        template: charts/redis/templates/primary/application.yaml

charts/sourcebot/values.yaml

@@ -343,6 +343,11 @@ postgresql:
     # -- Overwrite default repository of helm chart to point to non-paid bitnami images
     repository: bitnamilegacy/postgresql
 
+  metrics:
+    image:
+      # -- Overwrite default metrics exporter repository to point to non-paid bitnami images
+      repository: bitnamilegacy/postgres-exporter
+
   # Authentication configuration
   auth:
     # -- Username to connect to PostgreSQL
@@ -391,6 +396,11 @@ redis:
     # -- Overwrite default repository of helm chart to point to non-paid bitnami images
     repository: bitnamilegacy/valkey
 
+  metrics:
+    image:
+      # -- Overwrite default metrics exporter repository to point to non-paid bitnami images
+      repository: bitnamilegacy/redis-exporter
+
   # Authentication configuration
   auth:
     # -- Username for Redis connection