Support for helm values in Ansible module

[rarkins]

Discussed in #29672

^{Originally posted by mueller-ma June 14, 2024}

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Helm, a Kubernetes package manager, can be executed by Ansible. Here's an example of the action kubernetes.core.helm:

---
- name: Install trivy-operator
  kubernetes.core.helm:
    name: trivy-operator
    namespace: trivy-system
    chart_repo_url: https://aquasecurity.github.io/helm-charts/
    chart_ref: trivy-operator
    chart_version: 0.23.0  # There's a newer version: 0.23.3
    values:
      trivy:
        image:
          registry: ghcr.io
          repository: aquasecurity/trivy
          tag: 0.52.0  # There's a newer version: 0.53.0

# Ansible tasks can be grouped via `block`
- name: Ansible block with a helm task
  block:
    - name: Install trivy-operator
      kubernetes.core.helm:
        name: trivy-operator
        namespace: trivy-system
        chart_repo_url: https://aquasecurity.github.io/helm-charts/
        chart_ref: trivy-operator
        chart_version: 0.23.0
        release_values:  # "release_values" is an alias for "values"
          trivy:
            image:
              registry: ghcr.io
              repository: aquasecurity/trivy
              tag: 0.52.0

https://github.com/mueller-ma/renovate-reproduce/blob/main/ansible-helm/tasks.yml

Two things could be updated via Renovate here:

1. chart_version is the version of the chart. When using a customManager similar to the customManagers:dockerfileVersions, the following arguments can be used to update this version: datasource=helm depName=trivy-operator registryUrl=https://aquasecurity.github.io/helm-charts/
2. The value of the keys values and release_values is like the content of a values.yaml file, which is supported by Renovate: https://docs.renovatebot.com/modules/manager/helm-values/

While I'm not aware of any default file name or file paths for Ansible yaml files, some common paths are:

• playbooks/*
• role/*/tasks/

[rarkins]

Reproduction forked to https://github.com/renovate-reproductions/29984