ioggstream/python-course repository overview

⁠Ansible 2 done right!

⁠Local Setup

This course is based on Docker and Docker compose. As long as you have Docker you can run it on:

• linux
• mac
• windows

Docker should be exposed via TCP on 172.17.0.1:2375

On Linux, set

# vim /etc/systemd/system/multi-user.target.wants/docker.service
[Service]
...
ExecStart=/usr/bin/dockerd -H fd:// -H tcp://172.17.0.1:2375
...

On Mac, check the FAQ and this issue⁠

Consider having enough bandwidth for the first run to download the images.

Run the environemnt with:

# make course

or

# docker-compose scale course=1 bastion=1 web=3
# firefox http://localhost:8888

⁠Playing the course on DigitalOcean

DigitalOcean is a great and cheap cloud-provider

• create an Ubuntu 16.04 docker droplet from the menu and ssh into your host
• expose docker on local http port

# vim /etc/systemd/system/multi-user.target.wants/docker.service
[Service]
...
ExecStart=/usr/bin/dockerd -H fd:// -H tcp://172.17.0.1:2375
...

• clone and run the project

 # git clone https://github.com/ioggstream/python-course.git
 # cd python-course/ansible-101
 # make course

• point to the reference url

See asciicast here

⁠Outline

• Ansible architecture
• Describe delivery layout in ansible.cfg
• Host and Group variables, Filters
• Static and dynamic inventories (docker)
• Vaults and Secrets
• Use bastions and other ssh_opts
• writing basic playbooks, test driven deployment
• Yaml pitfalls
• Inclusion and Roles
• Ansible galaxy as a role repository (bonus track)