Ansible script to add user to edge node and HDFS

add_user.yml

---
- hosts: edge
  sudo: True
  vars:
    users: [hsunami]

  tasks:
  - name: Create users
    with_items: "{{ users }}"
    user:
      name: "{{ item }}"
      shell: /bin/bash
      generate_ssh_key: yes
      ssh_key_bits: 2048
      ssh_key_file: .ssh/id_rsa
      groups: writers,hadoop

  - name: Create authorized keys file
    with_items: "{{ users }}"
    command: creates="/home/{{item}}/.ssh/authorized_keys" cp /home/{{item}}/.ssh/id_rsa.pub /home/{{item}}/.ssh/authorized_keys

  - name: Create HDFS home dirs for users
    with_items: "{{ users }}"
    action: |
      command sudo -u hdfs -- /bin/sh -c '
      hadoop fs -mkdir -p /user/{{item}}
      hadoop fs -chown {{item}}:hadoop /user/{{item}}
      hadoop fs -chmod -R 755 /user/{{item}}'