Upgrade - loki pack to 3.7.4

packs/loki-3.7.4/README.md

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+## Loki
+
+Grafana Loki is a horizontally scalable log aggregation system designed for efficient storage and querying of logs. This package deploys Loki using the Grafana Community Helm Chart and supports Monolithic, Simple Scalable, and Microservices deployment modes.
+
+### Package Information
+
+| Property | Value |
+|-----------|---------|
+| Application | Grafana Loki |
+| Chart | loki |
+| Chart Version | 18.5.2 |
+| Application Version | 3.7.4 |
+| Namespace | loki |
+
+---
+
+## Prerequisites
+
+Before deploying this package, ensure the following requirements are met:
+
+### Kubernetes Requirements
+
+- Kubernetes 1.25 or later
+- Helm 3.x
+
+### Dependencies
+
+The following components are included as subcharts:
+
+| Repository | Dependency | Version |
+|------------|------------|---------|
+| https://charts.min.io | MinIO | 5.4.0 |
+| https://grafana.github.io/helm-charts | Rollout Operator | 0.50.1 |
+
+> Note: The embedded MinIO deployment is deprecated for production environments. Use external object storage whenever possible.
+
+### Storage Requirements
+
+For production deployments, configure one of the following object storage backends:
+
+- Amazon S3
+- Azure Blob Storage
+- Google Cloud Storage
+- S3-compatible storage
+
+---
+
+## Parameters
+
+### Common Configuration
+
+```yaml
+deploymentMode: Monolithic
+
+gateway:
+  enabled: true
+
+lokiCanary:
+  enabled: true
+```
+
+### Loki Image Configuration
+
+```yaml
+loki:
+  image:
+    repository: grafana/loki
+    tag: 3.7.4
+```
+
+### Package Images
+
+```yaml
+pack:
+  content:
+    images:
+      - image: docker.io/grafana/loki:3.7.4
+      - image: docker.io/grafana/loki-canary:3.7.4
+      - image: docker.io/grafana/loki-helm-test:3.7.4
+      - image: docker.io/nginxinc/nginx-unprivileged:1.31-alpine
+      - image: ghcr.io/jkroepke/access-log-exporter:0.4.6
+      - image: docker.io/memcached:1.6.45-alpine
+      - image: quay.io/prometheus/memcached-exporter:v0.16.0
+      - image: docker.io/kiwigrid/k8s-sidecar:2.8.1
+      - image: registry.k8s.io/kubectl:v1.36.0
+```
+
+### Storage Example
+
+```yaml
+loki:
+  storage:
+    bucketNames:
+      chunks: loki-chunks
+      ruler: loki-ruler
+```
+
+---
+
+## Upgrade
+
+### Upgrade Package
+
+```bash
+helm upgrade loki grafana-community/loki \
+  --namespace loki \
+  -f values.yaml
+```
+
+### Important Upgrade Considerations
+
+#### From 17.x to 18.x
+
+- Monitoring settings moved under `.Values.monitoring`
+- Dashboard generation now uses upstream `loki-mixin`
+- `cluster` label replaced by `app_instance`
+- Alert configuration moved to `monitoring.alerts`
+
+#### From 16.x to 17.x
+
+- Embedded MinIO deployment is deprecated
+- External object storage is recommended
+
+#### From 11.x to 12.x
+
+- Default deployment mode changed to `Monolithic`
+- `SingleBinary` renamed to `Monolithic`
+
+#### Kubernetes Compatibility
+
+- Kubernetes 1.25+ required
+- Deprecated API versions removed
+
+---
+
+## Usage
+
+### Install from OCI Registry
+
+```bash
+helm install loki \
+  oci://ghcr.io/grafana-community/helm-charts/loki \
+  --namespace loki \
+  --create-namespace
+```
+
+### Install from Helm Repository
+
+```bash
+helm repo add grafana-community https://grafana-community.github.io/helm-charts
+
+helm repo update
+
+helm install loki \
+  grafana-community/loki \
+  --namespace loki \
+  --create-namespace
+```
+
+### Verify Installation
+
+```bash
+kubectl get pods -n loki
+```
+
+```bash
+kubectl get svc -n loki
+```
+
+### Uninstall
+
+```bash
+helm uninstall loki -n loki
+```
+
+---
+
+## References
+
+### Documentation
+
+- https://grafana.com/docs/loki/latest/
+- https://grafana.com/docs/loki/latest/setup/install/helm/
+- https://grafana.com/oss/loki/
+
+### Source Code
+
+- https://github.com/grafana/loki
+
+### Helm Repository
+
+- https://grafana-community.github.io/helm-charts
+
+### Storage Documentation
+
+- https://grafana.com/docs/loki/latest/configure/storage/
+- https://grafana.com/docs/loki/latest/operations/storage/schema/
+
+### Changelog
+
+- https://grafana-community.github.io/helm-charts/changelog/?chart=loki

packs/loki-3.7.4/charts/loki/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
+# Helm plugin tooling
+ci/
+tests/
+*.gotmpl
+# pre-fork content - to be removed
+test/
+scenarios/
+docs/
+*-values.yaml
+hack/

packs/loki-3.7.4/charts/loki/Chart.lock

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+dependencies:
+- name: minio
+  repository: https://charts.min.io/
+  version: 5.4.0
+- name: rollout-operator
+  repository: https://grafana.github.io/helm-charts
+  version: 0.50.1
+digest: sha256:43cb7005a687a7eb7d7876f38a9ae771d6da29dcdb1c573986e71135dfdcdcfd
+generated: "2026-07-17T18:13:45.639631483Z"

packs/loki-3.7.4/charts/loki/Chart.yaml

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+apiVersion: v2
+appVersion: 3.7.4
+dependencies:
+- alias: minio
+  condition: minio.enabled
+  name: minio
+  repository: https://charts.min.io/
+  version: 5.4.0
+- alias: rollout_operator
+  condition: rollout_operator.enabled
+  name: rollout-operator
+  repository: https://grafana.github.io/helm-charts
+  version: 0.50.1
+description: Helm chart for Grafana Loki supporting monolithic, simple scalable, and
+  microservices modes.
+home: https://grafana-community.github.io/helm-charts
+icon: https://grafana.com/docs/loki/latest/logo_and_name.png
+kubeVersion: '>=1.25.0-0'
+maintainers:
+- email: mike1118@live.com
+  name: Michael Timmerman
+  url: https://github.com/TheRealNoob
+- email: github@jkroepke.de
+  name: Jan-Otto Kröpke
+  url: https://github.com/jkroepke
+- email: quentin.bisson@gmail.com
+  name: Quentin Bisson
+  url: https://github.com/QuentinBisson
+name: loki
+sources:
+- https://github.com/grafana/loki
+- https://grafana.com/oss/loki/
+- https://grafana.com/docs/loki/latest/
+type: application
+version: 18.5.4