configure.yml

# This part appears to work. It returns json.
- name: Check if influxdb datasource configured
  uri:
    method: GET
    user: "{{ grafana_admin_login|quote }}"
    password: "{{ grafana_admin_password|quote }}"
    force_basic_auth: true
    body_format: json
    url: "http://localhost:{{ grafana_port }}/api/datasources"
  register: datasources

- name: Configure influxdb datasource
  uri:
    method: POST
    user: "{{ grafana_admin_login|quote }}"
    password: "{{ grafana_admin_password|quote }}"
    force_basic_auth: true
    body_format: json
    body: {
    }
    url: "http://localhost:{{ grafana_port }}/api/datasources"
  # when: "\"type\": \"influxdb\" not in datasources.json"
  when: "{{ influxdb_datasource|to_json }} not in datasources.json"