Download as PDF, PPTX
![Inventory
[balancer]
10.0.1.60
[webservers]
10.0.1.61
10.0.1.62
10.0.1.63
10.0.1.64
[database]
10.0.1.65
[dramble:children]
balancer
webservers
database
[dramble:vars]
ansible_ssh_user=pi
• INI-syntax (can also use YAML and dynamic sources)
• Default location: /etc/ansible/hosts (can override with -i)](https://image.slidesharecdn.com/ansible101-150709032048-lva1-app6892/85/Ansible-101-Presentation-at-Ansible-STL-Meetup-12-320.jpg)
![Roles
• Like: Libraries, packages, config bundles
• Encapsulate configuration in smaller, reusable
chunks
• 4,000+ contributed roles on Ansible Galaxy
• To create: ansible-galaxy init [role-name]](https://image.slidesharecdn.com/ansible101-150709032048-lva1-app6892/85/Ansible-101-Presentation-at-Ansible-STL-Meetup-20-320.jpg)
Uploaded byJeff Geerling
Ansible 101 - Presentation at Ansible STL Meetup
The document is a presentation by Jeff Geerling on Ansible, highlighting its use for DevOps and configuration management. It covers installation, basic commands, playbooks, and roles in Ansible, along with examples and demonstrations. Additional resources and integration capabilities with other tools such as Docker and AWS are also mentioned.
More Related Content
Similar to Ansible 101 - Presentation at Ansible STL Meetup
![20260201 [FOSDEM] gomodjail - library sandboxing for Go modules.pdf](https://cdn.slidesharecdn.com/ss_thumbnails/20260201fosdemgomodjail-librarysandboxingforgomodules-260201225659-76609ec4-thumbnail.jpg?width=640&height=640&fit=bounds)
Ansible 101 - Presentation at Ansible STL Meetup
- 1. Ansible 101 Jeff Geerling AnsibleSt. Louis Meetup - July 8, 2015
- 2. Who am I? •Jeff Geerling (geerlingguy) • Technical Architect, Acquia • Owner, Midwestern Mac LLC • Dev (mainly), Ops
- 3. Ansible for DevOps •On LeanPub • Nearly complete! • 50% off: http://bit.ly/ansible-stl
- 4. My Story • First'real' server build: a 486 PC, RedHat Linux 6 Gateway 2000 4DX2-66v RedHat Linux 6.x
- 5. Today Midwestern Mac ServerCheck.in Hosted Apache Solr Personal = 50+ prod servers, one very part-time sysadmin
- 6. • “Configuration managementfor humans.” • Uses SSH • Secure, fast, simple • 300+ built-in modules • Don't need configuration management to manage your configuration management.
- 7. • “Configuration managementfor humans.” • Uses SSH • Secure, fast, simple • 300+ built-in modules • Don't need configuration management to manage your configuration management. ___________ < And cows! > -‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐ ^__^ (oo)_______ (__) )/ ||-‐-‐-‐-‐w | || ||
- 8. Installation • Python pip:sudo pip install ansible • Mac: brew install ansible • RHEL/CentOS/Fedora: sudo yum install ansible • Deb/Ubuntu: sudo apt-add-repository ppa:ansible/ansible sudo apt-get update sudo apt-get install ansible
- 9. Ansible 101 1. Inventory:Describe your infrastructure 2. Ad-Hoc commands: Run one-off tasks 3. Playbooks: "Infrastructure as code" 4. Roles: Encapsulate configuration
- 10. http://robmyers.org/cc-ironies/no_flash_photography_sign/ Please help meavoid the Xenon Death Flash
- 11. • 6-node RaspberryPi cluster CPU 24 cores / 5.4 GHz RAM 6 GB Storage 96 GB microSD Network 10/100 over Gig https://github.com/geerlingguy/raspberry-pi-dramble The #Dramble
- 12. Inventory [balancer] 10.0.1.60 [webservers] 10.0.1.61 10.0.1.62 10.0.1.63 10.0.1.64 [database] 10.0.1.65 [dramble:children] balancer webservers database [dramble:vars] ansible_ssh_user=pi • INI-syntax (canalso use YAML and dynamic sources) • Default location: /etc/ansible/hosts (can override with -i)
- 13. • Check connectivity(always a good first step!) $ ansible all -m ping • Have fun with RGB LEDs! $ ansible webservers -a "rgb red" -s Ad-Hoc Commands
- 14. • Check connectivity(always a good first step!) $ ansible all -m ping • Have fun with RGB LEDs! $ ansible webservers -a "rgb red" -s Ad-Hoc Commands ________ < Shiny! > -‐-‐-‐-‐-‐-‐-‐-‐ ^__^ (oo)_______ (__) )/ ||-‐-‐-‐-‐w | || ||
- 15. Demo # Test connectivity. ansibleall -m ping # Raspberry Pi RGB LEDs. ansible all -a "rgb green" -s ansible all -a "rgb blue" -s --forks=1 ansible all -a "rgb green" -s --forks=2 ansible all -a "colors 255 255 255" -s # More useful commands. ansible all -m setup ansible all -a "free -m" ansible all -m shell -a "ifconfig | grep inet" -s ansible all -m user -a "name=pgibbons state=absent remove=yes" -s ansible webservers -m service -a "name=nginx state=restarted" -s --forks=2 Download playbook examples
- 16. Playbooks • Ad-Hoc commandsdon't solve the snowflake problem • "infrastructure as code" • Simple YAML files • Run with: ansible-playbook Unique, by Pen Waggener
- 17. Playbooks #!/bin/bash # Shell scriptto install/configure Apache. # Install Apache. yum install --quiet -y httpd httpd-devel # Copy configuration files. cp /path/to/config/httpd.conf /etc/httpd/conf/httpd.conf cp /path/to/config/httpd-vhosts.conf /etc/httpd/conf/httpd-vhosts.conf # Start Apache. service httpd start # Set Apache to run on startup. chkconfig httpd on
- 18. Playbooks #!/bin/bash # Shell scriptto install/configure Apache. # Install Apache. yum install --quiet -y httpd httpd-devel # Copy configuration files. cp /path/to/config/httpd.conf /etc/httpd/conf/httpd.conf cp /path/to/config/httpd-vhosts.conf /etc/httpd/conf/httpd-vhosts.conf # Start Apache. service httpd start # Set Apache to run on startup. chkconfig httpd on --- # Playbook to install/configure Apache. hosts: all tasks: - name: Install Apache. yum: name={{ item }} state=present with_items: - httpd - httpd-devel - name: Copy configuration files. copy: "src={{ item.src }} dest={{ item.dest }}" with_items: - { src: "/path/to/config/httpd.conf", dest: "/etc/httpd/conf/httpd.conf" } - { src: "/path/to/config/httpd-vhosts.conf", dest: "/etc/httpd/conf/httpd-vhosts.conf" } - name: Ensure Apache is started and runs on startup. service: name=httpd state=started enabled=yes
- 19. Demo # Run justthe users playbook. ansible-playbook users.ml # Run the users playbook again, to demonstrate idempotence. ansible-playbook users.yml # Run the web playbook (twice, again). ansible-playbook web.yml ansible-playbook web.yml # Run the main playbook that includes users.yml and web.yml ansible-playbook main.yml ansible-playbook main.yml Download playbook examples
- 20. Roles • Like: Libraries,packages, config bundles • Encapsulate configuration in smaller, reusable chunks • 4,000+ contributed roles on Ansible Galaxy • To create: ansible-galaxy init [role-name]
- 21. Demo Role folder structure: rolename/ defaults/ main.yml<-- Most variables go here, so you can override if needed. handlers/ main.yml meta/ main.yml tasks/ main.yml tests/ <-- See Testing Ansible Roles with Travis CI on GitHub vars/ main.yml <-- Special and static variables go here. Download playbook examples
- 22. More Ansible • AnsibleTower, Jenkins integration, CI • Docker integration • AWS, DigitalOcean, Rackspace, Softlayer, Linode, etc. • Notifications • Rolling updates • Ansible Vault • etc...
- 23. More Ansible • AnsibleTower, Jenkins integration, CI • Docker integration • AWS, DigitalOcean, Rackspace, Softlayer, Linode, etc. • Notifications • Rolling updates • Ansible Vault • etc... ______________________________ < Follow @AnsiBull on Twitter! > -‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐-‐ ^__^ (oo)_______ (__) )/ ||-‐-‐-‐-‐w | || ||
- 24. More Resources • Ansibledocumentation • Ansible Vagrant examples • Ansible for DevOps • 50% off: http://bit.ly/ansible-stl • Raspberry Pi Dramble • Example playbook from this presentation