charmcraft.yaml

# Copyright 2024 Canonical Ltd.
# See LICENSE file for licensing details.

name: loki-worker-k8s
type: charm
assumes:
  - k8s-api
  - juju >= 3.4.5

summary: Loki for Kubernetes clusters.
description: |
  Grafana Loki is an open source software project that provides a scalable long-term storage for Prometheus.
  This charm deploys and operates Loki on Kubernetes clusters

links:
  website: https://charmhub.io/loki-worker-k8s
  source: https://github.com/canonical/loki-worker-k8s-operator
  issues: https://github.com/canonical/loki-worker-k8s-operator/issues
  documentation: https://discourse.charmhub.io/t/loki-worker-k8s-operator-docs-index/15536

bases:
  - build-on:
    - name: ubuntu
      channel: "22.04"
    run-on:
    - name: ubuntu
      channel: "22.04"

parts:
  charm:
    charm-binary-python-packages:
      - "pydantic>=2"
      - "cryptography"
      - "jsonschema"

requires:
  loki-cluster:
    interface: loki_cluster
    limit: 1

storage:
  loki-persisted:
    type: filesystem
    description: Mount point in which Loki will store data.

containers:
  loki:
    resource: loki-image
    mounts:
      - storage: loki-persisted
        location: /loki/persisted

resources:
  loki-image:
    type: oci-image
    description: OCI image for Grafana Loki
    upstream-source: docker.io/ubuntu/loki:3.0-22.04

# Based on: https://grafana.com/docs/loki/latest/get-started/deployment-modes/#simple-scalable
config:
  options:
    role-read:
      type: boolean
      default: false
    role-write:
      type: boolean
      default: false
    role-backend:
      type: boolean
      default: false
    role-all:
      type: boolean
      default: false