gareth rushgrove | morethanseven.net

Automating Web Site Deployment No more FTP

Barcamp Brighton 5th September 2009

http://www.flickr.com/photos/grittycitygirl/186837530/

Gareth Rushgrove

gareth rushgrove | morethanseven.net

morethanseven.net

What do you do now?

gareth rushgrove | morethanseven.net http://www.flickr.com/photos/mn_francis/392404523/

- Put all files under sourcecontrol

- Move files to the server

- Copy configuration into place

- Symlink the current release

- Restart your webserver

gareth rushgrove | morethanseven.net

Steps to deploy

gareth rushgrove | morethanseven.net

Put all files under sourcecontrol

http://www.flickr.com/photos/rooreynolds/2396418896/

gareth rushgrove | morethanseven.net

Move all files to the server

Don't just FTP files to the server

- Anything manual is error prone

- You will miss an important file

- Deploying to multiple machines at once is hard

- You have no history, what was live a year ago?

gareth rushgrove | morethanseven.net

Move all files to the server II

Don't checkout your repo and serve from that.

- Your web servers need access to your repository

- You have to remember to limit access to hidden files

- Not all commands are atomic

- The checkout can become corrupt

gareth rushgrove | morethanseven.net

Move all files to the server III

Do use some sort of package.

- Tar files are fine, deb files are great

- It's repeatable

- You can introspect packages

- Packages freeze a moment in time

gareth rushgrove | morethanseven.net

Copy configuration into place

For example:

- Apache virtualhosts

- Memcache configuration

- Solr configuration

- Anything that lives in /etc in debian

gareth rushgrove | morethanseven.net

Symlink the current release

- Each release is stored in a unique named directory

- You could use a timestamp or a version control uid

- A symlink points at the directory

- Apache virtualhosts point at the symlink

> cd /srv/sample; lspackages releases shared

> cd packages; ls20090905142306.tar.gz

> cd ../releases; ls20090905142306 current

gareth rushgrove | morethanseven.net

Symlink the current release II

gareth rushgrove | morethanseven.net

Restart your web server

http://www.flickr.com/photos/anonymouscollective/2291896028/

gareth rushgrove | morethanseven.net

WARNING: Live Demo

http://www.flickr.com/photos/arthur_chapman/3855590323/

gareth rushgrove | morethanseven.net

Next steps

You’ll probably want to move onto:

- Creating databases, or running migrations

- Rollback to a previous version

- Deploy to multiple machines at once

- Installing third party libraries

http://www.flickr.com/photos/jasephotos/1736694514/in/photostream/gareth rushgrove | morethanseven.net

Questions?