{%
set has_promexporter = salt['pillar.get'](
  'chaos-role',
  default={}
  )
%}
{% set orig_prom_path = '/var/lib/prometheus/node-exporter' %}
# This has to be here, otherwise:
# https://stackoverflow.com/questions/59268721/saltstack-use-include-twice-in-one-sls-file
# 
{%- if 'prometheus-node_exporter' in has_promexporter %}
include:
  - prometheus
  - systemd.reload
{%- endif %}

{%- if 'prometheus-node_exporter' in has_promexporter %}
systemd-prometheus-node-exporter-service-override:
  file.managed:
    - name: /etc/systemd/system/prometheus-node-exporter.service.d/override.conf
    - user: node_exporter 
    - group: node_exporter
    - makedirs: True
    - contents: |
        [Service]
        ExecStartPre=mkdir -p {{ salt['pillar.get']('prometheus:service:node_exporter:args:collector.textfile.directory') }}
        ExecStartPre=chown prometheus:prometheus {{ salt['pillar.get']('prometheus:service:node_exporter:args:collector.textfile.directory') }}
        ExecStartPre=chmod 755 {{ salt['pillar.get']('prometheus:service:node_exporter:args:collector.textfile.directory') }}
    - watch_in:
      - cmd: reload_systemd_configuration

{% if salt['file.directory_exists' ](orig_prom_path) %}
delete-orig-prom-path: 
 file.absent:
    - name: {{ orig_prom_path }}
{% endif %}

link-orig-prom-path:
  file.symlink:
    - name: {{ orig_prom_path }} 
    - target: {{ salt['pillar.get']('prometheus:service:node_exporter:args:collector.textfile.directory') }}
    - require:
      - file: delete-orig-prom-path

patch-smartmon.sh:
  file.managed:
    - name: /usr/share/prometheus-node-exporter/smartmon.sh
    - source: salt://base/packages/prometheus/files/smartmon.sh
    - mode: 0755
{%- endif %}