---
# HDFS namenode
- name: Install the hdfs config files.
  template: src=templates/{{ item }}.j2 dest={{ hadoop_conf_dir }}/{{ item }} owner=root group=root mode=0444
  with_items:
    - core-site.xml
  notify:
    - Restart HDFS namenode
  tags:
    - namenode
    - hdfs

- name: Install the hdfs config files.
  template: src=templates/namenode-{{ item }}.j2 dest={{ hadoop_conf_dir }}/{{ item }} owner=root group=root mode=0444
  with_items:
    - hdfs-site.xml
  notify:
    - Restart HDFS namenode
  tags:
    - namenode
    - hdfs
    - hdfs_site

- name: Install the dfs hosts allow file
  template: src=dfs_hosts_allow.txt.j2 dest={{ hadoop_conf_dir }}/dfs_hosts_allow.txt owner=root group=root mode=0444
  notify:
    - Restart HDFS namenode
  tags:
    - namenode
    - hdfs
    - hadoop_workers

- name: Install the dfs hosts exclude file
  copy: src=dfs_hosts_exclude.txt dest={{ hadoop_conf_dir }}/dfs_hosts_exclude.txt owner=root group=root mode=0444
  tags:
    - namenode
    - hdfs
    - hadoop_workers
    - hadoop_exclude

- name: Check if the hadoop-jmx conf directory exists
  stat: path=/etc/hadoop-jmx/conf
  register: check_jmx_confdir

- name: Distribute the jmx authorization files for hadoop hdfs
  template: src=templates/jmxremote.passwd.j2 dest=/etc/hadoop-jmx/conf/jmxremote.passwd owner=hdfs mode=0600
  when: check_jmx_confdir.stat.exists and hadoop_jmx_enabled
  notify:
    - Restart HDFS namenode
  tags:
    - hadoop
    - hdfs
    - jmx

- name: Distribute the jmx role files for hadoop hdfs
  copy: src=files/jmxremote.access dest=/etc/hadoop-jmx/conf/jmxremote.access owner=root mode=0644
  when: check_jmx_confdir.stat.exists and hadoop_jmx_enabled
  notify:
    - Restart HDFS namenode
  tags:
    - hadoop
    - hdfs
    - jmx