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File Manipulation with Ansible

A common theme in everyday systems administration is the need to work with system files. It follows that any good configuration management or automation engine must be able to do the same. This exercise challenges students to use Ansible to execute varying tasks on remote systems involving file manipulation.

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Path Info

Clock icon Intermediate
Clock icon 1h 0m
Clock icon May 17, 2019

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Table of Contents

  1. Challenge

    Become `ansible` user and then download to `/tmp` on each host in qa-servers and verify the sha256 checksum via

    Note: This URL only works correctly when accessed on the lab servers. The domain name DNS entry is overridden in /etc/hosts on each lab server. If you attempt to access it from another system, you will reach a parked domain.

    On EACH of the hosts in 'qa-servers' inventory, become the ansible user:

    sudo su - ansible

    As the ansible user (above), run the following commands on each host in the qa-servers:

    • CHECKSUM=$(curl | cut -f1 -d' ')
    • ansible qa-servers -m get_url -a "url= dest=/tmp/enigma.tgz checksum=sha256:$CHECKSUM"
  2. Challenge

    Extract `/tmp/enigma.tgz` to `/opt/` on all hosts in `qa-servers`.

    Run ansible qa-servers -b -m unarchive -a "src=/tmp/enigma.tgz dest=/opt/ remote_src=yes".

  3. Challenge

    Update the line of text "DEPLOY_CODE" in `/opt/enigma/details.txt` to the "CODE_RED" on each server in `qa-servers`.

    Run ansible qa-servers -b -m lineinfile -a "regexp=DEPLOY_CODE line=CODE_RED path=/opt/enigma/details.txt".

  4. Challenge

    Set the group ownership of the directory `/opt/enigma/secret/` and each file contained within the directory so that the group owner is `protected` for each host in `qa-servers`.

    Run ansible qa-servers -b -m file -a "recurse=yes state=directory path=/opt/enigma/secret group=protected".

  5. Challenge

    Delete the file `/opt/enigma/tmp/deployment-passwords.txt` from all servers.

    Run ansible all -b -m file -a "state=absent path=/opt/enigma/tmp/deployment-passwords.txt".

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