Have you ever botched a deployment and taken a site offline? I have - more times then I'd like to admit. What if we could completely automate the deployment process, make it lightning fast, remove most of the risk, and do it all without custom bash scripts? Better yet, what if we could use the same exact deployment process locally or trigger it via CI? All of this is possible with Deployer - a PHP-based deployment tool which supports virtually every CMS and framework! Attendees will learn the basics of Deployer, how to customize deployments to fit their needs, and how to handle situations if things go wrong.

1. Automating Deployments with
Deployer
@colinodell

2. @colinodell
Colin O'Dell
Lead Developer & DevOps Engineer
Unleashed Technologies

3. @colinodell
Frequent Deployments:
• New Initiatives
• Ongoing Growth & Maintenance
• In-House Development
Hassle-Free Deployments:
• Automated
• Repeatable / Reliable
• Minimal Downtime
• Standardized
• Executable by anyone

4. @colinodell
FTP / vim
@colinodell

5. @colinodell
git pull
@colinodell

6. @colinodell
bash script
@colinodell

7. @colinodell
bash script
@colinodell

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bash script
@colinodell

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capistrano

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capistrano

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docker
@colinodell

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also docker

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✔️
deployer

14. @colinodell
Overview
• Deployment Methodology
• Getting Started
• Recipes
• Configuration
• Hosts
• Tasks
• Customizations
• Q&A

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Deployment Methodology
How Deployer Works Under-The-Hood

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webroot

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releases
1
current“web root”

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releases
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2
current“web root”

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releases
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2
current“web root”

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releases
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current“web root”

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releases
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current
releases
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current

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releases
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current
releases
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current

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releases
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releases
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current

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releases
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releases
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releases
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releases
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releases
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releases
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releases
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releases
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releases
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releases
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releases
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current
shared

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releases
1
current
web
settings.php
shared
uploads

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releases
1
current
web
settings.php
shared
uploads
uploads
settings.php
src
web
index.php
1

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releases
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current
web
settings.php
shared
uploads
uploads
settings.php
src
web
index.php
1
22

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releases
1
current
web
settings.php
shared
uploads
uploads
settings.php
src
web
index.php
1
src
web
index.php
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releases
1
current
web
settings.php
shared
uploads
uploads
settings.php
src
web
index.php
1
uploads
settings.php
src
web
index.php
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releases
1
current
web
settings.php
shared
uploads
uploads
settings.php
src
web
index.php
1
uploads
settings.php
src
web
index.php
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releases
1
current
web
settings.php
shared
uploads
2
Shared Filesystem
(NFS)
releases
1
current
2

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Getting Started

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Installation
Install .phar globally:
Via Composer (.phar):
Via Composer (source):
Good for developing recipe
Better once completed

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Initializing Deployer

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deploy.php

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“Recipes” (aka deployment script)
• Configuration
• Deployment settings
• Hosts
• Where does this deploy to
• Tasks
• What commands and tasks need to run

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Configuration
• Key-value store
• Settings referenced in tasks

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has()
set()
get()

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has()
set()
get()
add()

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Hosts
Define in deploy.php or separate YML file

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Host Connection Settings

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Multiple Hosts & Environments

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Multiple Hosts & Roles

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Flow

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releases
shared
.dep

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releases
shared
.dep
deploy.lock

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releases
shared
.dep
deploy.lock
1
1

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releases
shared
.dep
deploy.lock
1
1
src
web
index.php
composer.json

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releases
shared
.dep
deploy.lock
1 src
web
index.php
1
uploads
settings.php
composer.json

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releases
shared
.dep
deploy.lock
1 src
web
index.php
1
uploads
settings.php
composer.json

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releases
shared
.dep
deploy.lock
1 src
web
index.php
1
uploads
settings.php
composer.json
vendor

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releases
shared
.dep
deploy.lock
1 src
web
index.php
1
uploads
settings.php
composer.json
vendor

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releases
shared
.dep
deploy.lock
1 src
web
index.php
1
uploads
settings.php
composer.json
vendor
current

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releases
shared
.dep
deploy.lock
1 src
web
index.php
1
uploads
settings.php
composer.json
vendor
current

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releases
shared
.dep
1 src
web
index.php
1
uploads
settings.php
composer.json
vendor
current

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releases
shared
.dep
1 src
web
index.php
1
uploads
settings.php
composer.json
vendor
current

62. @colinodell

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Making Deployments

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Making Verbose Deployments

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Making Very Verbose Deployments

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Making Very Very Verbose Deployments

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Making Very Very Verbose Deployments

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Making Very Very Verbose Deployments

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Default Task Execution
Host 1
Task 1
Host 2 Host 3
Task 1
Task 1
Task 2
Task 2
Task 2
Host 4
Task 1
Task 2

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Parallel Task Execution: --parallel
Host 1
Task 1
Host 2 Host 3
Task 1 Task 1
Task 2 Task 2 Task 2
Host 4
Task 1
Task 2
Task 3 Task 3 Task 3 Task 3

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Parallel Task Execution: --parallel --limit=2
Host 1
Task 1
Host 2 Host 3
Task 1
Task 2 Task 2
Task 1
Host 4
Task 1
Task 2 Task 2

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Other Commands

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Other Recipes

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Other Recipes:
WordPress

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Other Recipes:
Laravel

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Other Recipes:
Laravel

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Customization
Defining custom tasks & recipes

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Custom Tasks

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Custom
Tasks

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Custom
Tasks

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Custom
Tasks

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Custom Tasks

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Custom Tasks

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Custom Tasks

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Custom Tasks

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Custom Tasks

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Questions?

89. Feedback Appreciated!
https://joind.in/talk/e3775
Learn More about Deployer:
https://deployer.org/docs
Slides:
Twitter: @colinodell