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PaaSing Your Code Around. Email: [email protected] Twitter: @ dragonmantank. Who Am I?. Chris Tankersley Been Doing PHP for 9+ Years Lots of projects no one uses, and a few that some do: https://github.com/dragonmantank. What is PaaS ?. Platform as a Service. - PowerPoint PPT Presentation
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ZendCon 20132Who Am I?
Chris Tankersley Been Doing PHP for 9+ Years Lots of projects no one uses,
and a few that some do: https://github.com/dragonman
tank
Oct 8 2013
ZendCon 20133
What is PaaS?
Oct 8 2013
ZendCon 20134
Software as a Service (SaaS)
Software Package
Platform as a Service
Platform as a Service (PaaS)
Server Language Deployment Scripts
Infrastructure as a Service (IaaS)
Server Infrastructure Storage Network
Oct 8 2013
ZendCon 20135Why use a PaaS?
Offload the work to someone else Possibly (maybe) more cost effective Small shops don’t have to hire as many people Scalability, both up and down
Oct 8 2013
ZendCon 20136PaaS Workflow
Git repo
Feature Branch
Feature Branch
Feature Branch
Run Paas Deployment
Your App Runs!
Oct 8 2013
ZendCon 20137Basic Knowledge
Just about all of them use git Just about all of them work best with a
command line Your OS doesn’t matter, they all pretty much
support everything A server-side scripting language
Bash, Ruby, Python
Oct 8 2013
ZendCon 20138Other Considerations
Where will uploaded files live? Does my app scale across multiple servers? How well does my application perform? Can I automate everything?
Oct 8 2013
ZendCon 20139
Oct 8 2013
ZendCon 201310Let’s set up a site on a
PaaS https://github.com/dragonmantank/paasing-you
r-code-around
Oct 8 2013
ZendCon 201311What I built
Silex App that displayed user-supplied ‘texts’ from drunk elephants Silex Symfony Forms Ruckusing Migrations Twig
Oct 8 2013
ZendCon 201312What did I want to find
out? How much code I had to change to get it to
work How much of a pain was it to get the
deployment process set up How long the deployments took How easy the deployments were How easy things were to manage
Oct 8 2013
ZendCon 201313What I did
Created the basic app in vagrant Signed up for a PaaS
Heroku Engineyard Redhat OpenShift Amazon ElasticBeanstalk
Made the app work Each set of code is in paas/[service] You can fork the repo, checkout the branch, and
set up the config
Oct 8 2013
ZendCon 201314
Heroku
Oct 8 2013
ZendCon 201315Heroku
Heroku is a container-based PaaS Each container (dyno) is a little virtualized
environment “Supports” PHP 5.3.27 and Apache 2.2.25 out of
the box Has a command line interface for working with
your apps
Oct 8 2013
ZendCon 201316Heroku – Creating an
Application Oct 8 2013
ZendCon 201317Heroku – Deploying an
App Push your branch to Heroku’s master branch
Oct 8 2013
ZendCon 201318Heroku – Getting it to
Work Heroku will only detect a PHP app if there is an
index.php file in the root Docroot is automatically set to the root of your
repo PHP is supported via a partnership with
Facebook, not that you’ll find that on their site Had to add a custom Procfile, bootstrap files,
and Buildpack Composer is slooooooow. Sites took 2-15
minutes to bootstrap Deploy hooks are done via the Procfile
Oct 8 2013
ZendCon 201319Heroku – General Notes
Extension support is hit or miss. You might need to compile your own
Since buildpacks actually set up an entire environment, really study what buildpack you use
Might want to commit vendor/ to your deploy branch to speed things up
While PHP 5.3.27 is the base install, you can actually install any PHP via a buildpack
Heroku uses ephemeral storage, so make sure all your files are saved to something like S3
Oct 8 2013
ZendCon 201320
Engineyard
Oct 8 2013
ZendCon 201321Engineyard
Engineyard is an AWS-based PaaS You set up Environments, which are groups of
EC2 instances Supports PHP 5.4.17 and MySQL 5.5 out of the
box Has a command line interface for working with
your apps Works with your VCS host to pull down and
deploy code
Oct 8 2013
ZendCon 201322Engineyard – Creating an
Application Create a new application
Select the Language Give it a Repo to pull from Give it a Name Tell it the docroot
Add your deploy key to your git server Set up an Environment
Give it a name Give it a type (Production, Development, etc) Select a DB Set up SSH keys
Oct 8 2013
ZendCon 201323Engineyard – Deploying
an App Give it a branch name and click ‘Deploy’
Oct 8 2013
ZendCon 201324Engineyard – Getting it to
Work Had to add a deploy/ script to get the database
migrations to work
Oct 8 2013
ZendCon 201325Engineyard – General
Notes You need to set up SSH keys to get into the
boxes DB credentials are in
/data/[app_name]/shared/config/databases.yml They are also exposed through the $_SERVER
array When you stop an instance without a public IP,
the IPs will change Since it’s booting an EC2 instance, it’s slow.
Takes 10-15 minutes to provision the environment (Deploys are much quicker)
Natively supports Composer!
Oct 8 2013
ZendCon 201326
Redhat OpenShift
Oct 8 2013
ZendCon 201327OpenShift
OpenShift is a ‘cartridge’ (container) PaaS Supports PHP 5.3.17 and MySQL 5.1 when using
the Zend Server cartridge Has a command line interface for working with
your apps The largest offering of platforms out of the test
PaaS’s
Oct 8 2013
ZendCon 201328OpenShift – Creating an
Application Oct 8 2013
ZendCon 201329OpenShift – Deploying an
App Push your branch to OpenShift’s master branch
Oct 8 2013
ZendCon 201330OpenShift– Getting it to
Work Had to fetch and merge their master branch Docroot is php/, so our deploy script changes
that php-intl extension had too old of an ICU version,
so had to downgrade it through Composer Could have completely redone PHP, like in Heroku
Composer is not natively supported, so do it via the deploy script
Deploy script is bash, so fairly easy to work with
Oct 8 2013
ZendCon 201331OpenShift – General
Notes You need to set up SSH keys to get into the
boxes Cartridge system is interesting and works well Does offer persistent storage, in the
$OPENSHIFT_DATA_DIR
Oct 8 2013
ZendCon 201332
AWS ElasticBeanstalk
Oct 8 2013
ZendCon 201333ElasticBeanStalk
It’s a Rackspace-based PaaS!
Oct 8 2013
ZendCon 201334ElasticBeanStalk
It’s a Rackspace-based PaaS! It’s an AWS-based PaaS Supports PHP 5.4 out of the box, and Amazon
RDS for DB Has a nice command line interface
Oct 8 2013
ZendCon 201335ElasticBeanstalk –
Creating an Application Log in AWS and go to ElasticBeanstalk Create an Application through their ‘eb’ tool
Go to your repo Run ‘eb init’ and answer the questions
Oct 8 2013
ZendCon 201336ElasticBeanstalk –
Deploying an App Run ‘eb branch’ to assign your branch to an
environment Run ‘git aws.push’ to deploy
Oct 8 2013
ZendCon 201337ElasticBeanstalk –
Getting it to Work Had to run ‘eb init’ and run through their setup,
even though the environment existed Had to run ‘eb branch’ to assign the current
branch to an environment so that ‘git aws.push’ would work
Oct 8 2013
ZendCon 201338ElasticBeanstalk –
General Notes It’s AWS, so provisioning the servers can take
10-15 minutes Supports Composer out of the box, which is nice Deploy hooks are done via their
container_commands
Oct 8 2013
ZendCon 201339
So What did I Learn?
Oct 8 2013
ZendCon 201340Deploy Scripts Are Your
Friend While you’ve got shell access, you still don’t
want to do stuff manually Knowing Bash scripting was incredibly helpful
Oct 8 2013
ZendCon 201341Understand Your Type of
PaaS Usually either container-based
OpenShift Heroku
Or Server-based ElasticBeanstalk Engineyard
These work internally differently, so understand how each works makes your life easier
Oct 8 2013
ZendCon 201342Your Code Should Just
Work A good PaaS won’t need you to modify your
code My code modifications were changing DB-
backends or making assumptions I shouldn’t have Most of the differences in the sample code are
deploy scripts and the config file That’s ignoring storage issues, which you might
need to work on
Oct 8 2013
ZendCon 201343Questions?
Oct 8 2013
