configuration management and deployment with ansible

Configuration Managementand

Deployment with Ansible

Иван ДимитровManager Technical OperationsXogito Group, Inc

ivan.dimitrov@xogito.com

Application DeploymentConfiguration ManagementAd-Hoc ExecutionRolling UpdatesMulti Tier DeploymentCloud Provisioning

Какво е Ansible

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!”

ssh based && agentlessЛесен за използване и разбиране

Какво е Ansible

Inventory[webservers]web1.host.comweb2.host.com

[databases]db1.host.comdb2.host.com

[linuxes:children]webserversdatabases

filessh_configCoblerAWSDigital OceanOpenStackRackSpace

Еднократни команди

$ ansible webservers -i hosts -m pingweb1.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

Playbooks

$ cat websites.yml---- hosts: websites user: ec2-user sudo: yes

vars: hostname: web1.host.com website_home: "/var/www/website.host.com"

Playbooks

roles: - common - datadog - nagios-agent - httpd - website.app

Roles

roles/common/

tasks/files/handlers/templates/vars/

website/tasks/…./

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

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

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

Modules

Batteries included - ~300 modulesFrom copying of files to mysql setupEasy to write

Plugins

Inventory pluginsConnection pluginsAction pluginsLookup PluginsVars PluginsFilter Plugins

Demo

Tips

Continuous Integration && Continuous DeliveryDifferent inventory files and variablesVagrant, Docker

Jenkins

if [ -f /usr/local/ansible/hacking/env-setup ] ; then source /usr/local/ansible/hacking/env-setup -qfiansible-playbook -i hosts.dev website.app.yml --start-at-task="Add website user" -e "website_deploy=yes"

Връзки

http://www.ansible.com/http://www.ansible.com/towerhttps://galaxy.ansible.com/http://docs.ansible.com/https://github.com/ansible/ansible

Благодаря && Въпроси