I am trying to automate deployment/rollback of new versions of our Web Based application at work. This is what I have in mind:
Create a backup of our app on production
Do an SVN Export from our local server
Stop apache and then mysql on production
Execute MySQL changes on production
Rsync to our prodcution server
Restart MySQl and then Apache on production.
Rollback is something similar (Exporting the previous tag from SVn, Rsyncing and executing SQL Rollback queries)
I am also automating the whole thing (except for starting/stopping Apache) using PHING.
I am concerned about the minute or two downtime while we release the new version of the app. And, I have been thinking about the process of Deploying web apps for a while now and have been reading about it online and I am wanting to know more about this topic.
Please share with us your experiences/best practices followed while deploying a Web App.
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