Configuration management and deployment with ansible
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This document discusses configuration management and deployment using Ansible. It provides an overview of Ansible's key capabilities including configuration management, ad-hoc execution, rolling updates, multi-tier deployment and cloud provisioning. It also discusses Ansible's architecture including being SSH-based and agentless, its use of inventory files, playbooks and roles to define configurations. Finally it demonstrates examples of using Ansible modules, tasks, and playbooks to manage and deploy applications.
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Configuration management and deployment with ansible
- 1. Configuration Management and Deployment with Ansible
- 2. Иван Димитров Manager Technical Operations Xogito Group, Inc ivan.dimitrov@xogito.com
- 3. Application Deployment Configuration Management Ad-Hoc Execution Rolling Updates Multi Tier Deployment Cloud Provisioning Какво е Ansible
- 4. for i in `cat servers` ; do ssh ubuntu@$i “sudo apt-get update && sudo apt-get -y install bash” ; done “It works on my laptop’s virtual machine!”
- 5. ssh based && agentless Лесен за използване и разбиране Какво е Ansible
- 7. Еднократни команди $ ansible webservers -i hosts -m ping web1.host.com | success >> { "changed": false, "ping": "pong" } web2.host.com | success >> { "changed": false, "ping": "pong" } $ ansible linuxes -i hosts -m shell -a "yum update bash" -s
- 8. Playbooks $ cat websites.yml --- - hosts: websites user: ec2-user sudo: yes vars: hostname: web1.host.com website_home: "/var/www/website.host.com"
- 9. Playbooks roles: - common - datadog - nagios-agent - httpd - website.app
- 11. Tasks $ cat roles/common/tasks/main.yml - name: Orcestrate all our instances template: src=motd dest=/etc/motd - name: Change bashrc copy: src=bashrc dest=/etc/bashrc - name: Install Development Tools yum: name="@Development tools" state=present
- 12. Tasks $ cat roles/httpd/tasks/main.yml - name: Install httpd yum: name=httpd state=present - name: Copy httpd.conf template template: src=httpd.conf dest=/etc/apache/httpd.conf owner=apache mode=0644 - name: Ensure that httpd is running service: name=httpd state=started enabled=yes
- 13. Tasks - name: Checkout repository from bitbucket git: repo=git@bitbucket.org:my-company/website.git dest={{ website_home }} update={{ website_deploy }} accept_hostkey=yes version={{ website_branch }} sudo: yes sudo_user: "{{ website_user }}" notify: - restart my-website-app
- 15. Modules Batteries included - ~300 modules From copying of files to mysql setup Easy to write
- 16. Plugins Inventory plugins Connection plugins Action plugins Lookup Plugins Vars Plugins Filter Plugins
- 17. Demo
- 18. Tips Continuous Integration && Continuous Delivery Different inventory files and variables Vagrant, Docker
- 19. Jenkins if [ -f /usr/local/ansible/hacking/env-setup ] ; then source /usr/local/ansible/hacking/env-setup -q fi ansible-playbook -i hosts.dev website.app.yml --start-at-task="Add website user" -e "website_deploy=yes"