---
# Manage the hdfs ssh keys used by the HDFS HA
- name: Create a ssh key for the hdfs user. Needed by NN automatic failover
  user: name=hdfs generate_ssh_key=yes ssh_key_type=rsa ssh_key_bits=2048
  tags:
    - hdfs-ssh

- name: Fetch the ssh public key. Needed to populate authorized_keys
  fetch: src=/usr/lib/hadoop/.ssh/id_rsa.pub dest=/var/tmp/prefix-hdfs-{{ ansible_fqdn }}-id_rsa.pub fail_on_missing=yes flat=yes
  tags:
    - hdfs-ssh

- name: Authorize the hdfs user ssh key. Needed by NN automatic failover
  authorized_key: user=hdfs key="{{ lookup('file', '/var/tmp/prefix-hdfs-{{ item }}.t.hadoop.research-infrastructures.eu-id_rsa.pub') }}"
  with_items:
    - nn1
    - nn2
  tags:
    - hdfs-ssh