automated deployments with ansible

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South Florida User Group, Fort Lauderdale, 31st March 2015

Martin Etmajer, Technology Strategist @Dynatrace

Automated Deploymentswith Ansible

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Insertimage here

Martin Etmajer

Technology Strategist @ Dynatrace

martin.etmajer@dynatrace.com

@metmajer

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Introduction

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The Phoenix Project

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The Phoenix Project: Review

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Continuous Delivery

Reliable Software Releases throughBuild, Test and Deployment Automation

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Utmost Goal: Minimize Cycle Time

feature cycle time time

Customer Users

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Utmost Goal: Minimize Cycle Time

feature cycle time time

Customer minimize Users

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Utmost Goal: Minimize Cycle Time

feature cycle time time

Customer

This is when youcreate value!

minimize

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Utmost Goal: Minimize Cycle Time

feature cycle time time

Customer

You

This is when youcreate value!

minimize

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Utmost Goal: Minimize Cycle Time

feature cycle time time

Customer

You

minimizeIt’s about getting your features into your user’s hands

as quickly as possible!

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“Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.”

#1 Principle of the Agile Manifesto

Agile Manifesto: Principle #1

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...which is at the heart of Continuous Delivery, defined as:

“A deployment pipeline is, in essence, an automated implementation

of your application’s build, deploy, test and release process.”

Jez Humble & Dave Farley in Continuous Delivery

Continuous Delivery Deployment Pipeline

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Continuous Delivery Deployment Pipeline

✔

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Continuous Delivery Deployment Pipeline

✔

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Continuous Delivery Deployment Pipeline

✔

✔

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Continuous Delivery Deployment Pipeline

✔

✔ ✔

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Continuous Delivery Deployment Pipeline

✔

✔ ✔ ✔

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✔

✔ ✔ ✔

✔

Continuous Delivery Deployment Pipeline

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Why?

» Create application runtime environments on demand

» Fast, reliable, repeatable and predictable outcomes

» Consistent environments in staging and production

» Establish fast feedback loops you can react upon

» Makes release days riskless, almost boring

Automated Deployments

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“Use machines for what they’re good at, use people for what they’re good at.”

Dave Farley at PIPELINE Conference 2014 @vimeo.com/96173993

Solve problemsand be creative!

Repetitive tasks

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What?

» Operating Systems, Drivers

» Middleware, Databases, etc.

» Applications, Dependencies, Data

Automated Deployments

} + Configuration

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How?

» Infrastructure as Code!

» Keep everything in Version Control

» Code

» Configuration

» Data

» Align Development and Operations

Automated Deployments

Everything that affectsapplication state

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Align Development and Operations

OPERATIONS

DEVELOPMENT

current iteration

(e.g. 2 weeks)time

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Align Development and Operations

OPERATIONS

DEVELOPMENT

current iteration

(e.g. 2 weeks)time

Planning

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Align Development and Operations

OPERATIONS

DEVELOPMENT

current iteration

(e.g. 2 weeks)time

Planning

Implementingand testing

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Align Development and Operations

OPERATIONS

DEVELOPMENT

current iteration

(e.g. 2 weeks)time

Planning

Implementingand testing

Working anddeployable code

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“Enable the reconstruction of the business from nothing but a source code repository, an application data backup, and bare metal resources.”

Adam Jacob, CTO of Opscode

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SolutionsArchitectural Comparison

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Agent-Based ArchitecturesExamples: Chef, Puppet

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Agent-Based Architectures

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Agent-Based Architectures

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Agent-Based Architectures

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Agentless ArchitecturesExamples: Ansible

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Ansible’s Agentless Architecture

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Ansible’s Agentless Architecture

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Ansible’s Agentless Architecture

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Ansible’s Agentless Architecture

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Ansible is an Orchestration Engine

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Ansible is an Orchestration Engine

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Ansible is an Orchestration Engine

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Ansible is an Orchestration Engine

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Ansible is an Orchestration Engine

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Ansible is an Orchestration Engine

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Ansible is an Orchestration Engine

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What about Demand?

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Global Google Trends: Chef vs. Puppet vs. Ansible

Chef

Puppet

Year #1

Ansible

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» Named #1 to watch in 2015 by SD Times

» Named a Top 10 open source project by Red Hat’s opensource.com

» > 1 Million Downloads

» > 40 dedicated Ansible meetups (happen regularly)

» > 300 customers across all verticals (Ansible Tower)

» > 900 contributors on GitHub (one of GitHub’s most active projects)

» AnsibleFest conferences in San Francisco, Austin & New York

» “Ansible: Up and Running” book preview released by O’Reilly

Ansible: Recap of 2014 (first full year of sales)

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NYC, May 2014

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» They integrate nicely into your automated processes!

» Automated Deployments

» Configuration Management

» Immutable Infrastructure

» Ansible inside the Dynatrace SaaS Orchestration Platform

» Whether on-prem or SaaS: automatically tested

Dynatrace Automated Deployments. So what?

Agents, Collectors, Servers, Clients, etc.with either of Chef, Puppet or Ansible

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What’s the Status?

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Ansible Roles

» Dynatrace installations

» Client, Server, Collector, Agents

» Fix Packs, Plugins, Licenses

» Dynatrace Agent injections

» Platforms: Linux Windows (soon)

» Soon to come: Agent Groups, PWH Connectivity, etc.

Automated Deployments: What’s the Status?

✓

✓

✓

✓

✓ ✓

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Ansible Galaxy

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Dynatrace GitHub Organization

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Chef Cookbook

» Customers have provided their own implementions

» We will clean them up and open-source them soon

Puppet Module

» Being developed in-house in our Linz lab

Automated Deployments: What’s the Status?

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Introduction to Ansible Concepts

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Ansible Concepts: Inventories

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Specify the environment Ansible operates in.

» Groups and hosts are defined in inventories

» Use inventories for staging and production

» Text files expressed in an INI-like format

Ansible Concepts: Inventories

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Ansible Concepts: Inventories

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Ansible Concepts: Inventories

GroupHost

Numeric Range

Alphabetic Range

# production

[balancers]

www.example.com

[webservers]

www[0-9].example.com

[dbservers]

db[a:f].example.com

[monitoring]

dynatrace.example.com

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Ansible Concepts: Playbooks

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Defines sequences of tasks (Plays) to be executed on a group of hosts.

» Describes policies machines under management shall enforce

» Contains variables, tasks, handlers, files, templates and roles

» Expressed in YAML

Ansible Concepts: Playbooks

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--- # webservers.yml

- hosts: webservers

tasks:

- name: Install Apache HTTP Server

apt: name=apache2 update_cache=yes

- name: Install Apache Modules

apache2_module: name={{ item }} state=present

with_items:

- proxy

- proxy_httpd

notify: reload apache2

handlers:

- name: reload apache2

service: name=apache2 state=reloaded

remote_user: deploy

sudo: yes

Ansible Concepts: Playbooks

List of plays

Group of hosts

DocumentationModule Arguments

Variable

Notify handler

Only on state changeDebounced

List of tasks

Restart service

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Ansible Concepts: Playbooks

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--- # playbook.yml

- include: dbservers.yml

- include: webservers.yml

- include: balancers.yml

- include: monitoring.yml

Ansible Concepts: Playbooks

One to rule them all

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Ansible Concepts: Roles

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The best way to organize your playbooks.

» Structure content into related vars, tasks, files, handlers, etc.

» File structure for automated inclusion of role-specific content

» Roles can be shared and pulled from Ansible Galaxy, GitHub, etc.

Ansible Concepts: Roles

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Deployment Automation of Dynatracewith Ansible

in 3 simple steps

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Simulated Production Environment: easyTravel

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Simulated Production Environment: easyTravel

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Deployment Scenario I: Install Server & Collector

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Deployment Scenario II: Inject Agents

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Deployment Scenario:Install Server & Collector

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1. Gather Dependencies

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Ansible Galaxy: Dynatrace-Server

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2. Specify Environment

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Identify Hosts

dynatrace.easytravel.com

Monitoring

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3. Execute Playbook

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Deployment Scenario:Inject Agents

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1. Gather Dependencies

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Identify Technologies

Apache HTTP Server

Apache Tomcat

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Ansible Galaxy: Dynatrace-Apache-HTTPServer-Agent

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Ansible Galaxy: Dynatrace-Tomcat-Agent

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2. Specify Environment

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Identify Hosts

www.easytravel.com

frontend.easytravel.com

backend.easytravel.com

Web Server

Application Servers

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3. Execute Playbook

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Dynatrace Client: Agent Connection Status5

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Dynatrace Client: Transaction Flow

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Questions?

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Blogs

» Continuous Delivery 101: Automated Deployments

» How to Automate Enterprise Application Monitoring with Ansible

Presentations

» Automated Deployments: Hands-On Training

» Dynatrace Inside Continuous Delivery

Tutorials

» Automated Deployments with Dynatrace and Ansible

Additional Resources

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Thank Youwww.dynatrace.com