provision-influxdb

#!/usr/bin/env ansible-playbook
# (c) 2016 DataNexus Inc.  All Rights Reserved.
# Licensed software not for distribution
#
# main routine for provisioning telegraf
---
# complete preflight for all host groups
- name: INFLUXDB OVERLAY | completing preflight OS configuration
  hosts: all:!controlcenter_broker:!all_brokers
  tags:
    - influxdb
  vars_files:
    - roles/telegraf/defaults/main.yml
    - "{{ tenant_config_path }}/config/site.yml"
    - "{{ tenant_config_path }}/config/applications/telegraf.yml"
  gather_facts: yes
  tasks:
    - include_role:
        name: preflight
      when: telegraf.enabled
        
# kafka_public doesn't really exists here -- just being consistent
- name: INFLUXDB OVERLAY | installing influxdb telegraf package 
  hosts: all:!controlcenter_broker:!all_brokers
  tags:
    - influxdb
  vars_files:
     - "{{ tenant_config_path }}/config/site.yml"
     - "{{ tenant_config_path }}/config/applications/telegraf.yml"
  gather_facts: yes
  tasks:
    - import_role:
        name: influxdb
      vars:
        influxdb_version: "telegraf-{{ telegraf_version }}-{{ telegraf_os_releasever }}"

# this is necessary before we build host groups from the ansible server
- name: TELEGRAF OVERLAY | discovering kafka broker facts
  tags:
    - influxdb
  hosts: kafka_broker
  tasks:
    - setup:

- name: TELEGRAF OVERLAY | building broker public internal host group
  tags:
    - influxdb
  hosts: localhost
  gather_facts: no
  tasks:
    # eth0 is the data plane in a single interface system
    - name: TELEGRAF OVERLAY | building eth0 broker host group
      add_host: hostname="{{ hostvars[item].ansible_eth0.ipv4.address }}" groupname=kafka_public
      with_items: "{{ groups['kafka_broker'] }}"
      when:
        - "'kafka_broker' in groups | default([])"
        - hostvars[item].ansible_eth1 is not defined
        
    # eth1 is the dataplane in a multi interface system
    - name: TELEGRAF OVERLAY | building eth1 broker host group
      add_host: hostname="{{ hostvars[item].ansible_eth1.ipv4.address }}" groupname=kafka_public
      with_items: "{{ groups['kafka_broker'] }}"
      when:
        - "'kafka_broker' in groups | default([])"
        - hostvars[item].ansible_eth1 is defined
        
# kafka_public isn't a real group; don't install to it
- name: TELEGRAF OVERLAY | configuring telegraf
  hosts: all:!controlcenter_broker:!all_brokers:!kafka_public
  tags:
    - influxdb
  vars_files:
    - "{{ tenant_config_path }}/config/site.yml"
    - "{{ tenant_config_path }}/config/applications/telegraf.yml"
  vars:
    # this is semi clever; application gets set based on each host group
    application: "{{ group_names | first }}"
  gather_facts: yes
  tasks:
    - import_role:
        name: telegraf
      when: telegraf.enabled