Ansible is Sensible - events.static.linuxfound.org · Ansible is Sensible OpenStack Done the Easy...

Ansible is Sensible

OpenStack Done the Easy Way

Created by: Igor Ljubuncic

Modified Date: October 2015

• Introduction

• The OpenStack Paradox

• My journey

• Enter Ansible

• DevOps

• Q&A

Agenda

2 www.rackspace.com

9 Worldwide Data Centers

6,000+ Rackers

Global Footprint

Customers in 120+ Countries

Annualized Revenue Over $1.8B

3 www.rackspace.com

About Rackspace

60% 100 OF

THE

We Serve FORTUNE®

OV

ER

300,000+

110,000+ Servers

45,000+ VM

≅70 PB Stored

Customers

Portfolio of Hosted Solutions Dedicated - Cloud - Hybrid

IGOR LJUBUNCIC Linux Lead Engineer, Rackspace UK

[email protected]

dedoimedo.com (DON’T CLICK!)

Books

Patents

Petrolhead

and … OpenStack newbie…

4 www.rackspace.com

About me

5 www.rackspace.com

The OpenStack

Paradox

“TO USE OPENSTACK

YOU NEED TO BE ABLE TO

USE OPENSTACK” – Nietzsche Igor

6 www.rackspace.com

www.rackspace.com 7

Reality

Business

Infrastructure

www.rackspace.com 8

How it works

• Provide service?

• Use it?

• Expertise

• Learning curve & time

• Deployment size

Should you use it?

9 www.rackspace.com

Wikimedia.org, CC BY-SA 3.0

www.rackspace.com 10

My journey

sed -i "s/^# admin_token.*/admin_token

= ADMIN" /etc/keystone/keystone.conf

export OS_USERNAME=admin

export OS_PASSWORD=openstack

mkdir -p /etc/swift/{object-

server,containerserver,account-server}

network_manager=nova.network.manager.Vl

anManager

vlan_start=100

vlan_interface=eth2

public_interface=eth1

dhcpbridge_flagfile=/etc/nova/nova.conf

dhcpbridge=/usr/bin/nova-dhcpbridge

apt-get -y install quantum-dhcp-agent

quantum-l3-agent quantum-plugin-

openvswitch quantum-plugin-openvswitch-

agent


My journey

nova flavor-list

+-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+

| ID | Name | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |

+-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+

| 1 | m1.tiny | 512 | 1 | 0 | | 1 | 1.0 | True |

| 2 | m1.small | 2048 | 20 | 0 | | 1 | 1.0 | True |

| 201 | tempest1 | 256 | 1 | 0 | | 1 | 1.0 | True |

| 202 | tempest2 | 512 | 1 | 0 | | 1 | 1.0 | True |

| 3 | m1.medium | 4096 | 40 | 0 | | 2 | 1.0 | True |

| 4 | m1.large | 8192 | 80 | 0 | | 4 | 1.0 | True |

| 5 | m1.xlarge | 16384 | 160 | 0 | | 8 | 1.0 | True |

+-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+

nova secgroup-add-rule default tcp 22 22 0.0.0.0/0

nova secgroup-add-rule default icmp -1 -1 0.0.0.0/0

nova keypair-add Igor > igor.pem

nova boot First --image 896fa8ca-682b-4f4e-859e-9f08b82b47fb --flavor 2 --key-name Igor

So what are we going to do?

12 www.rackspace.com

Object Placeholder

Enter Ansible


• Configuration management tool

• Remote connection via OpenSSH (or paramiko Python module)

• But you can also pull configurations (Ansible-Pull)

• Inventory file – groups & names

• Command line

• Playbooks!

• YAML


Ansible


Ansible playbooks

---

- hosts: webservers

vars:

http_port: 80

remote_user: root

tasks:

- name: write the apache config file

template:

src: /srv/httpd.j2

dest: /etc/httpd.conf

notify:

- restart apache

handlers:

- name: restart apache

service:

name: httpd

state: restarted

• https://github.com/stackforge/os-ansible-deployment

• http://www.slideshare.net/KevinCarter10/osad-slidesvancouver2015

• Ubuntu 14.04, LXC

• Ansible Playbook magic


OpenStack Ansible Deployment (OSAD)

bash <(curl http://git.openstack.org/cgit/stackforge/os-

ansible-deployment/plain/scripts/run-aio-build.sh)

openstack-ansible setup-everything.yml

• Focus on using OpenStack not building it

• Configuration management driven methodology

• Simplicity, modular building blocks

• Clean and tidy deployments

• Community help


Drive business

But Ansible also needs setup!


Questions?


If you have any other questions – including cars!

[email protected]


Contact me

Ansible is Sensible - events.static.linuxfound.org · Ansible is Sensible OpenStack Done the Easy...

Documents

Transcript of Ansible is Sensible - events.static.linuxfound.org · Ansible is Sensible OpenStack Done the Easy...