playbook-influx-db.yml

---
# Copyright 2016, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Deploy influxdb
  hosts: "cluster-metrics"
  gather_facts: true
  user: root
  tasks:
    - name: Check init system
      command: cat /proc/1/comm
      changed_when: false
      register: _pid1_name
      tags:
        - always
    - name: Set the name of pid1
      set_fact:
        pid1_name: "{{ _pid1_name.stdout }}"
      tags:
        - always
    - name: InfluxDB datapath bind mount
      lxc_container:
        name: "{{ inventory_hostname }}"
        container_command: |
          [[ ! -d "/var/lib/influxdb" ]] && mkdir -p "/var/lib/influxdb"
        container_config:
          - "lxc.mount.entry=/openstack/{{ inventory_hostname }} var/lib/influxdb none bind 0 0"
      delegate_to: "{{ physical_host }}"
    - name: Add influxdata apt-keys
      apt_key:
        url: "https://repos.influxdata.com/influxdb.key"
        state: "present"
    - name: Add influxdata repo
      apt_repository:
        repo: "deb https://repos.influxdata.com/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} stable"
        state: "present"
        update_cache: yes
    - name: Install influxdb
      apt:
        pkg: "influxdb"
        state: "latest"
    - name: Drop influxdb config file
      template:
        src: templates/influxdb.conf.j2
        dest: /etc/influxdb/influxdb.conf
    - name: Enable and restart influxdb
      service:
        name: "influxdb"
        enabled: true
        state: restarted
    - name: Wait for influxdb to be ready
      wait_for:
        host: "{{ hostvars[item]['ansible_host'] }}"
        port: "{{ influxdb_port }}"
        delay: 1
      with_items: "{{ groups['cluster-metrics'] }}"
    - name: Create metrics DB
      shell: >
        influx -username {{ influxdb_db_root_name }}
        -password {{ influxdb_db_root_password }}
        -execute "{{ item }}"
      with_items:
        - "CREATE DATABASE {{ influxdb_db_name }}"
        - "CREATE RETENTION POLICY {{ influxdb_db_retention_policy }} ON {{ influxdb_db_name }} DURATION {{ influxdb_db_retention }} REPLICATION {{ influxdb_db_replication }}"
        - "CREATE USER {{ influxdb_db_metric_user }} WITH PASSWORD '{{ influxdb_db_metric_password }}'"
        - "GRANT ALL ON {{ influxdb_db_name }} TO {{ influxdb_db_metric_user }}"
    - name: Install git
      apt:
        pkg: "git"
        state: "latest"
    - name: Install GOLang
      script: files/deploy_go.sh
    - name: Download and install influx-relay
      script: files/deploy_influxdbrelay.sh
    - name: Drop influx relay toml file
      template:
        src: templates/relay.toml.j2
        dest: /opt/influxdb-relay/relay.toml
    - name: Drop Influx Relay upstart
      template:
        src: templates/influxdbrelay.conf.j2
        dest: /etc/init/influxdbrelay.conf
      when: pid1_name == "init"
    - name: Drop Influx Relay service file
      template:
        src: templates/influxdbrelay.service.j2
        dest: /etc/systemd/system/influxdbrelay.service
      when:  pid1_name == "systemd"
    - name: Enable and restart influxdb
      service:
        name: "influxdbrelay"
        state: restarted
  vars_files:
    - vars.yml