run two command in one task

Archives Ansible Project
1

Hi,

I was trying to write simple task in ansible to create HDFS user hone directory if it’s not exist. So following is the task I wrote

  • name: create user home dir in HDFS

shell: shell: “hadoop fs -test -d /user/{{ item.name }} || (hadoop fs -mkdir /user/{{ item.name }} && hadoop fs -chown {{ item.name }} /user/{{ item.name }})”

when: “‘hdfsuser’ in {{ item.groups }} and ‘{{ inventory_hostname }}’ in [‘hadoop-client01.dev.abc.com’]”

with_items: ssh_users

remote_user: hdfs

tags:

  • hadoop

But I want to make it more simplified by breaking the shell command into two.

so is it possible to have conditional dependent two commands in one single task.

or is there better way to do this ?

Thanks

2

Maybe use register variables; something like:

  • name: test user home dir in HDFS
    shell: hadoop fs -test -d /user/{{ item.name }}
    register: hadoop_dir

  • name: create user home dir in HDFS
    shell: hadoop fs -mkdir /user/{{ item.name }}
    when: hadoop_dir|failed

  • name: chown user home dir in HDFS
    hadoop fs -chown {{ item.name }} /user/{{ item.name }})
    when: hadoop_dir|failed