
# Copyright 2017-present Open Networking Foundation
#
# 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.


---
- hosts: '{{ instance_name }}'
  gather_facts: False
  connection: ssh
  user: ubuntu
  sudo: yes

  tasks:

  - name: Installing python-dev
    apt: name=python-dev state=present update_cache=yes

  - name: Installing Flask
    pip: name=Flask

  - name: Verify if  ([monitoring_agent] is to avoid capturing the shell process) is already running
    shell: pgrep -f [m]onitoring_agent | wc -l
    register: monitoringagent_job_pids_count

  - name: DEBUG
    debug: var=monitoringagent_job_pids_count.stdout

  - name: stop /usr/local/share/monitoring_agent if already running
    shell: pkill -f /usr/local/share/monitoring_agent/monitoring_agent.py
    ignore_errors: True
    when:  monitoringagent_job_pids_count.stdout !=  "0"

  - name: Deleting monitoring agent folder(if already exists)
    file: path=/usr/local/share/monitoring_agent state=absent owner=root group=root

  - name: make sure /usr/local/share/monitoring_agent exists
    file: path=/usr/local/share/monitoring_agent state=directory owner=root group=root

  - name: Copying ONOS driver files 
    when : "'ceilometer' in instance_name"
    copy: src=ceilometer-plugins/network/statistics/ dest=/usr/lib/python2.7/dist-packages/ceilometer/network/statistics/

  - name: Enabling ONOS driver in /usr/lib/python2.7/dist-packages/ceilometer-2015.1.4.egg-info/entry_points.txt
    when : "'ceilometer' in instance_name"
    lineinfile:
      dest: /usr/lib/python2.7/dist-packages/ceilometer-2015.1.4.egg-info/entry_points.txt
      insertafter: '^\[network\.statistics\.drivers\]'
      line: "onos = ceilometer.network.statistics.onos.driver:ONOSDriver"
      state: present

  - name: Copying monitoring agent conf file
    when : "'ceilometer' in instance_name"
    set_fact: ceilometer_services="ceilometer-agent-central,ceilometer-agent-notification,ceilometer-collector,ceilometer-api"

  - name: Copying monitoring agent conf file
    when : "'ceilometer' not in instance_name"
    set_fact: ceilometer_services="ceilometer-agent-compute"

  - name : DEBUG
    debug: var=ceilometer_services

  - name: Copying monitoring agent conf file  
    template: src=monitoring_agent.conf.j2 dest=/usr/local/share/monitoring_agent/monitoring_agent.conf  mode=0777 

  - name: Copying file to /usr/local/share
    copy: src=monitoring_agent.py dest=/usr/local/share/monitoring_agent/monitoring_agent.py mode=0777

  - name: Copying file to /usr/local/share
    copy: src=generate_pipeline.py dest=/usr/local/share/monitoring_agent/generate_pipeline.py mode=0777

  - name: Copying file to /usr/local/share
    copy: src=pipeline.yaml.j2 dest=/usr/local/share/monitoring_agent/pipeline.yaml.j2 mode=0777
 
  - name: Copying file to /usr/local/share
    copy: src=start_monitoring_agent.sh dest=/usr/local/share/monitoring_agent/start_monitoring_agent.sh mode=0777

  - name: Starting monitoring agent
    command: nohup python /usr/local/share/monitoring_agent/monitoring_agent.py &
    args:
       chdir: /usr/local/share/monitoring_agent/
    async: 9999999999999999
    poll: 0
 
  - name: Configuring monitoring agent
    shell: /usr/local/share/monitoring_agent/start_monitoring_agent.sh

#TODO: 
#Copy ONOS notification handlers 
#from ~/xos_services/monitoring/xos/synchronizer/ceilometer/ceilometer-plugins/network/statistics/onos
#to /usr/lib/python2.7/dist-packages/ceilometer/network/statistics/onos in the headnode ceilometer node
#Copy a file from ~/xos_services/monitoring/xos/synchronizer/ceilometer/ceilometer-plugins/network/statistics/__init__.py
#to /usr/lib/python2.7/dist-packages/ceilometer/network/statistics/ folder 
#Also, update the entry_points.txt with the following changes:
#[network.statistics.drivers]
#....
#onos = ceilometer.network.statistics.onos.driver:ONOSDriver