Vagrant and Ansible can be used together for local development and production deployment. Vagrant allows for reproducible development environments that match production. Ansible is an agentless configuration management tool that uses YAML files for inventories, playbooks, and roles to deploy applications and configure servers. Playbooks contain plays that target server groups or hosts and run tasks defined in roles.

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