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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

Level
Clock icon Intermediate
Duration
Clock icon 1h 0m
Published
Clock icon May 17, 2019

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Table of Contents

  1. Challenge

    Become `ansible` user and then download http://software.xyzcorp.com/enigma.tgz to `/tmp` on each host in qa_servers and verify the sha256 checksum via http://software.xyzcorp.com/enigma-checksum.txt.

    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=$(curl http://software.xyzcorp.com/enigma-checksum.txt | cut -f1 -d' ')
    • ansible qa-servers -m get_url -a "url=http://software.xyzcorp.com/enigma.tgz dest=/tmp/enigma.tgz checksum=sha256:$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".

A Cloud Guru - Labs - File Manipulation with Ansible
Author
A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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