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1. Vagrant & Ansible
for local dev and production
deployment
Christoffer Kaalund : Everplaces
@ChrisKaalund

3. = Local development tool

4. • Super simple to setup dev env
• Fully reproducible
• Having a setup that is as close to prod as possible
• Works with Chef, Puppet, Ansible & Shell Scripts to
provision your dev env

5. Vagrant, VirtualBox, Ansible

7. Application deployment
&
Configuration Management

8. • Agentless - push not pull
• Simple to setup, read and understand
• Wildly powerful
• Easy to extent
• Python

9. ansible-playbook -i production webserver.yml

10. WHERE
staging
dev
ansible-playbook -i production webserver.yml

11. WHAT
database.yml
site.yml (all)
ansible-playbook -i production webserver.yml

12. inventories/
dev
production
group_vars/
all/
main.yml
keys.yml
database
dev
production
host_vars/
...
site.yml
deploy.yml
roles/
database/
tasks/
main.yml
handlers/
main.yml
files/
foo.txt
templates/
bar.j2
vars/
main.yml
web/
...
memcached/
...

13. Inventories
Playbooks
inventories/
dev
production
group_vars/
all/
main.yml
keys.yml
database
dev
production
host_vars/
...
site.yml
deploy.yml
roles/
database/
tasks/
main.yml
handlers/
main.yml
files/
foo.txt
templates/
bar.j2
vars/
main.yml
web/
...
memcached/
...

14. Inventories
inventories/
dev
production
group_vars/
all/
main.yml
keys.yml
database
dev
production
host_vars/
...
# file: inventories/production
[web]
4.2.2.1
4.2.2.2
[database]
8.8.8.8
[production:children]
web
database

15. Inventories
inventories/
dev
production
group_vars/
all/
main.yml
keys.yml
database
dev
production
host_vars/
...
# file: inventories/production
[web]
4.2.2.1
4.2.2.2
[database]
8.8.8.8
[production:children]
web
database
# file: inventories/dev
[web]
192.168.33.16
[database]
192.168.33.16
[dev:children]
web
database

16. Inventories
inventories/
dev
production
group_vars/
all/
main.yml
keys.yml
database
dev
production
host_vars/
...
# file: inventories/production
[web]
Group
4.2.2.1
4.2.2.2
[database]
8.8.8.8
[production:children]
web
database

17. Inventories
inventories/
dev
production
group_vars/
all/
main.yml
keys.yml
database
dev
production
host_vars/
...
# file: inventories/production
[web]
Group
4.2.2.1
Host
4.2.2.2
[database]
8.8.8.8
[production:children]
web
database

18. Inventories > variables
inventories/
dev
production
group_vars/
all/
main.yml
keys.yml
database
dev
production
host_vars/
...
---
# file: group_vars/database
db_name: "{{ project_name }}_db"
db_user: "{{ project_name }}_pg"
db_encoding: UTF8
db_collate_and_ctype: en_US.UTF-8
db_template: template0
# file: inventories/production
[web]
4.2.2.1
4.2.2.2
[database]
8.8.8.8
[production:children]
web
database

19. ansible-playbook -i inventories/production site.yml

20. Playbooks
Playbooks = a list of plays

21. Playbooks
A play = running tasks on hosts

22. Playbooks
- hosts: web
tasks:
- name: Ensure apache is at the latest version
yum: pkg=httpd state=latest
- name: Ensure apache is running
service: name=httpd state=started

23. Playbooks
Roles = groups of tasks

24. Playbooks
# file: site.yml
---
- hosts: database
sudo: yes
sudo_user: root
roles:
- database
- hosts: web
sudo: yes
sudo_user: root
roles:
- memcached
- webserver
deploy.yml
site.yml
roles/
database/
tasks/
main.yml
handlers/
main.yml
files/
foo.txt
templates/
bar.j2
vars/
main.yml
web/
...
memcached/
...

25. ansible-playbook -i inventories/production site.yml

26. Playbooks > Roles
roles/
database/
tasks/
main.yml
handlers/
main.yml
files/
foo.txt
templates/
bar.j2
vars/
main.yml

27. Inventory Playbooks
Groups
Hosts
Roles
Tasks
Modules