Add InfluxDB role

roles/influxdb/defaults/main.yaml

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+---
+influxdb_package_name: influxdb
+influxdb_package_state: present
+
+influxdb_service_name: influxdb.service
+influxdb_service_state: started
+influxdb_service_enabled: yes
+
+influxdb_config:
+  reporting-disabled: yes
+  meta:
+    dir: /var/lib/influxdb/meta
+  data:
+    dir: /var/lib/influxdb/data
+    wal-dir: /var/lib/influxdb/wal
+    series-id-set-cache-size: 100
+    index-version: tsi1
+    query-log-enabled: no
+  http:
+    log-enabled: no

roles/influxdb/handlers/main.yaml

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+---
+- name: reload influxdb
+  service:
+    name: "{{ influxdb_service_name }}"
+    state: restarted
+  when: influxdb_service_enabled
+
+- name: influxdb daemon-reload
+  systemd:
+    name: "{{ influxdb_service_name }}"
+    daemon_reload: yes
+    state: restarted
+
+# vim:ft=yaml.ansible:

roles/influxdb/tasks/Debian.yaml

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+---
+- name: add influx apt key
+  apt_key:
+    url: https://repos.influxdata.com/influxdb.key
+    state: present
+
+- name: configure apt repository
+  apt_repository:
+    repo: "deb https://repos.influxdata.com/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} stable"
+    filename: influxdb
+    update_cache: yes
+    state: present

roles/influxdb/tasks/main.yaml

@@ -0,0 +1,44 @@
+---
+- name: gather os specific variables
+  include_vars: "{{ lookup('first_found', possible_files) }}"
+  vars:
+    possible_files:
+      files:
+        - "{{ ansible_distribution }}-{{ ansible_distribution_version }}.yaml"
+        - "{{ ansible_distribution }}.yaml"
+        - "{{ ansible_os_family }}.yaml"
+        - "default.yaml"
+      paths:
+        - vars
+
+- name: include os specific tasks
+  include_tasks: "{{ lookup('first_found', possible_files) }}"
+  vars:
+    possible_files:
+      files:
+        - "{{ ansible_distribution }}-{{ ansible_distribution_version }}.yaml"
+        - "{{ ansible_distribution }}.yaml"
+        - "{{ ansible_os_family }}.yaml"
+        - "default.yaml"
+      paths:
+        - tasks
+
+- name: install package
+  package:
+    name: "{{ influxdb_package_name }}"
+    state: "{{ influxdb_package_state }}"
+
+- name: configure
+  template:
+    src: influxdb.conf.j2
+    dest: /etc/influxdb/influxdb.conf
+    owner: root
+    group: root
+    mode: 0644
+  notify: reload influxdb
+
+- name: manage service
+  service:
+    name: "{{ influxdb_service_name }}"
+    state: "{{ influxdb_service_state }}"
+    enabled: "{{ influxdb_service_enabled }}"

roles/influxdb/templates/influxdb.conf.j2

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+{%- macro toml_scalar(v, seq=False) -%}
+{% if v is string %}
+  "{{ v | quote }}"{% if seq %},{% endif %}
+{% elif v is sameas True or v is sameas False %}
+  {{ v | bool | lower }}{% if seq %},{% endif %}
+{% elif v is sameas None %}
+  ""{% if seq %},{% endif %}
+{% elif v is number %}
+  {{ v }}{% if seq %},{% endif %}
+{% endif %}
+{%- endmacro -%}
+
+{%- macro render_section(config = {}) -%}
+{% for k, v in config.items() | default({}) %}
+{% if v is mapping %}
+[{{ k }}]
+{{ render_section(v) }}
+{% elif v is string %}
+{{ k }} = "{{ v | quote }}"
+{% elif v is sameas True or v is sameas False %}
+{{ k }} = {{ v | bool | lower }}
+{% elif v is sameas None %}
+{{ k }} = ""
+{% elif v is number %}
+{{ k }} = {{ v }}
+{% elif v is sequence %}
+{{ k }} = [
+{% for i in v | default([]) %}
+  {{ toml_scalar(i, seq=True) }}
+{% endfor %}
+]
+{% endif %}
+{% endfor %}
+{%- endmacro -%}
+
+# {{ ansible_managed }}
+
+{{ render_section(influxdb_config) }}

roles/influxdb/vars/default.yaml

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+---