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Website Development and Deployment Strategies

Learn how to deploy and maintain websites, utilize revision control systems, and share code effectively. Explore deployment methods, revision control techniques, and collaboration strategies for successful website development.

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Website Development and Deployment Strategies

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  1. Information Systems 337 Prof. Harry Plantinga Development and Deployment

  2. Developing and Deploying • These lab VMs will be going away after the semester ends • How will you deploy the site? • How will you save the source code so that you or others can work on it later?

  3. Site Maintenance • Your web site is up and running, and people are using it • You want to change a page • You edit the page.tpl.php file. Syntax error! Site goes down! • You can't remember how to fix it. Site stays down! • You have two people editing the same file. Site down! Work lost! • What to do?

  4. Development Strategies • You will need live and development sites • Devel site on your own VM • Deploy site on calvincs.com • Live site on client’s dreamhost account • Ideally: one-button deployment

  5. Deployment • Deployment means uploading your site (www directory, databases) to a host • Host must support PHP, MySQL, etc. • Next lab: deployment on dreamhost (calvincs.com). Other hosts – same idea, different details • Load your database onto their server • Use FTP to load your /var/www/ directory onto their server • Adjust configuration… • Point your domain name to the new host • Turn on caching • Test • Deploying your term project…

  6. Deploying to Dreamhost • Upload your database • Create a database on host • Export development Drupal database with mysqldump • Import your database into Dreamhost server • Upload your Web directory • Zip your /var/www directory • Copy to dreamhost server • Unzip in appropriate directory • Modify settings as needed • settings.php – for logging in to the 1and1 database • .htaccess – for finding your files

  7. Revision Control: the problem… • Have you ever lost work while writing a term paper? • How do you collaborate on writing projects? • Have you ever made changes to a computer program that caused it to stop working? • How would you collaborate on a development project like a website? • What if you have two versions of your website and need to manage merges and synchronization?

  8. Revision Control • Revision control (or source control or version control) systems help you • maintain old and new versions of code • view and reconcile difference between versions • check out and check in code • keep track of every change: who, why? • revert to previous versions of your code

  9. Revision Control Systems • Popular revision control systems • CVS • old, stable • used by Drupal, sourceforge • Subversion (SVN) • newer, quite popular • Install on your own PC! • Git • Newest, maybe becoming most popular? • Many others…

  10. Drupal and CVS • Check out the latest version of a drupal release: • cvs -d:pserver:anonymous:anonymous@cvs.drupal.org:/cvs/drupal checkout –r DRUPAL-5 drupal • See what releases are available: • cvs -d:pserver:anonymous:anonymous@cvs.drupal.org:/cvs/drupal status -v CHANGELOG.txt • Tags and Branches: • Each new version of Drupal is a new branch • Tags are snapshots at a point in time of a particular branch • Hint: use CVS to get code from drupal.org and use git or SVN to do revision control on your own code!

  11. Git • Designed for speed • Originally designed and developed by Linus Torvalds for Linux kernel development • Very popular • GUI support on various operating systems

  12. Git Commands • git-init(1) to create a new repository. • git-show-branch(1) to see where you are. • git-log(1) to see what happened. • git-checkout(1) and git-branch(1) to switch branches. • git-add(1) to manage the index file. • git-diff(1) and git-status(1) to see what you are in the middle of doing. • git-commit(1) to advance the current branch. • git-reset(1) and git-checkout(1) (with pathname parameters) to undo changes. • git-merge(1) to merge between local branches. • git-rebase(1) to maintain topic branches. • git-tag(1) to mark known point.

  13. Sharing your Code • When you pass off the website to your client, they will also need access to the source code. • They could download it from the host via FTP or scp • You could set up a repository on github.com • This would allow multiple people to work on the site • Free for open source projects • Dreamhosthas git – use push or clone to upload or download your site

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