Code Challenge Intro

This repository contains Vagrant-Ansible code to automate centos and Docker Swarm provisioning.

Achievements

• Vagrant Create two centos 7 virtual machines
• Ansible Install Docker
• Enable Docker service
• Allow Docker Engine API on local network
• Travis Set travis ansible-lint in Continuous Integration
• Create Docker Swarm Master node and set output variable accordingly to the worker token
• ...

Requirements

• I used a Python virtual environment: python3 -m venv env. I installed following packages:
  • molecule
  • ansible-core
  • pyvmomi
• [Vagrant]
• OS Packages
  • ansible
  • vagrant
  • libvirt
  • virtualbox
  • ansible-lint
• Current IPv4 addresses of the VMs: 192.168.56.11/12 - Do not choose an IP that overlaps with any other IP space on your system. This can cause the network to not be reachable
• Check Vagrantfile for forwarded ports. Avoid collisions with other localhost services

Environment

• OS: Arch Linux
• Python3

---

HowTo

• vagrant up
• set ports in Vagrantfile
  • curl -X GET "http://localhost:52375/containers/json?all=1"
  • curl -X GET "http://localhost:52376/containers/json?all=1"

In case you want to edit the vagrantfile, the suggested steps to restart the cluster are the following: vagrant halt > vagrant destroy > vagrant up --provision

TODOs

• Secure the Dcoker API access:

  • TLS: https://docs.docker.com/engine/security/protect-access/#use-tls-https-to-protect-the-docker-daemon-socket
  • SSH: https://docs.docker.com/engine/security/protect-access/#use-ssh-to-protect-the-docker-daemon-socket

• Join Docker Swarm Worker

  • FIX ansible_vars global
  • pass worker-token from docker swarm master to worker

• Molecule Tests