---
# Base environment for all the hadoop services
- name: Base environment for all the hadoop services
  template: src=templates/bigtop-utils.default.j2 dest=/etc/default/bigtop-utils owner=root group=root mode=444
  tags: [ 'hadoop', 'configuration' ]

- name: copy /etc/hadoop/conf.empty to {{ hadoop_conf_dir }}
  command: creates={{ hadoop_conf_dir }} cp -R -p /etc/hadoop/conf.empty {{ hadoop_conf_dir }}
  tags: [ 'hadoop', 'configuration' ]

- name: run 'update-alternatives' to set our hadoop configuration directory
  alternatives: name=hadoop-conf link=/etc/hadoop/conf path={{ hadoop_conf_dir }}
  tags: [ 'hadoop', 'configuration' ]

- name: Install the common configuration files
  template: src={{ item }}.j2 dest={{ hadoop_conf_dir }}/{{ item }} owner=root group=root mode=444
  with_items:
    - slaves
    - masters
    - log4j.properties
  tags: [ 'hadoop', 'configuration', 'log4j', 'hadoop_workers' ]

- name: Install the shared configuration files
  template: src=templates/{{ item }}.j2 dest={{ hadoop_conf_dir }}/{{ item }} owner=root group=root mode=444
  with_items:
    - hadoop-env.sh
  tags: [ 'hadoop', 'configuration' ]

- name: Install the mapreduce scheduler configuration file
  template: src=templates/{{ item }}.j2 dest={{ hadoop_conf_dir }}/{{ item }} owner=root group=root mode=444
  with_items:
    - fair-scheduler.xml
  when: mapred_use_fair_scheduler
  tags: [ 'hadoop', 'configuration', 'scheduler' ]