infrastructure/k8s/roles/prometheus/tasks/main.yaml

---
- name: Add Prometheus chart repo
  kubernetes.core.helm_repository:
    name: prometheus-community
    repo_url: https://prometheus-community.github.io/helm-charts

- name: Create observability namespace
  kubernetes.core.k8s:
    name: observability-system
    api_version: v1
    kind: Namespace
    state: present
    definition:
      metadata:
        labels:
          prometheus: default

- name: Create Grafana admin credentials secret
  kubernetes.core.k8s:
    state: present
    definition:
      apiVersion: v1
      kind: Secret
      metadata:
        name: grafana-admin-credentials
        namespace: observability-system
      data:
        user: "{{ grafana.admin.user | b64encode }}"
        password: "{{ grafana.admin.password | b64encode }}"

- name: Deploy Prometheus chart
  kubernetes.core.helm:
    name: prometheus
    chart_ref: prometheus-community/kube-prometheus-stack
    release_namespace: observability-system
    chart_version: 43.2.1
    release_values: "{{ lookup('ansible.builtin.template', 'values.yaml.j2') | from_yaml }}"