RoySRobinson/ansible_linux

Linux w/Ansible and Docker (Takes about 5 mins to Build)

Linux build = ubuntu:20.04

This project will attempt to set up a local environment with Docker to test ansible scripts.
In an attempt to automate steps for groups supported by DevOps.

• Install Docker Desktop https://www.docker.com/products/docker-desktop
• Start Docker Desktop
• Download this project from GitLab with the Download Button
• Extract all the contents into a location on your PC
• Navigate to the location on you PC that you have just extracted the project contents
• Build test env w/Docker using the following command:

  • docker-compose up -d --build --scale ansible_node=3

• Docker containers are build with an ansible and root user available.
  • Both users passwords are ansible
• Log into the control_node using command line:
  • Linux:

  • docker exec -it control_node bash

  • Windows:

  • winpty docker exec -it control_node bash

• Log into the control_node using Docker Desktop CLI button:

  • CLI button

• Run the command:

  • su root ./add_hosts.sh

• password = ansible

The worker nodes are named: ansible_node_number

After running the ./add_host.sh on the control node:

ssh onto any worker node from the ansible control node. With the following command:

• ssh box_1

  • Change the box_(number) to ssh into a different box

• To test ssh connection run the following command from the control_node :

  • ssh box_1

• To test ansible run the following command from the control_node:

  • ansible patching[0] -m ping

  • ansible patching[0] -a "free -h"

• Happy Testing!

Project Commands

Build: Current Scale Limit = 50

• docker-compose up -d --build --scale ansible_node=3

  • Change the --scale ansible_node= to scale up or down.
    i.e.

  docker-compose up -d --build --scale ansible_node=50

Test Adhoc Commands

Ping:

• box_1:

  • ansible patching[0] -m ping

• box_1-50:

  • ansible patching[0:49] -m ping

• Memory Stats:
• box_1:

  • ansible patching[0] -a "free -h"

• box_1-50:

  • ansible patching[0:49] -a "free -h"

Play Books Commands

• Ensure that python3-apt and python3-pycurl packages are installed This example playbook will only do it for 1 node_1 server. Will ignore the rest.

  • ansible-playbook install_sofware-playbook.yml

Destroy Resources

• Destroy all resources when your finished

  • docker-compose down