Feb 27, 2013

Instant Deployment with git

One of the nicest things in git is that you can actually deploy code to production (or just your test environment) w/o implementing a complicated CI solution.
Off course that using CI such as Jenkins is recommended when compilation is required (JAVA/C/C++/C#) or when TDD/unit tests are use (and you better use them).
Yet, when you just need to deploy, git can be a great service for you.

Note: please note that you must an ssh access from the local machine (not always feasble).

How is done?
Actually it is very simple (and a complete explenation can be found at stackoverflow and toroid):

Step #1: Setup a repository in the development environment and commit a first file
> git init

Step #2: Setup an environment at the web server
> mkdir /path/to/dir/website.git && cd /path/to/dir/website.git
> git init --bare

Step #3: Enable a post receive hook at the web server
> mkdir /var/www/www.mydomain.com
> cat > hooks/post-receive
GIT_WORK_TREE=/var/www/www.mydomain.com git checkout -f
> chmod +x hooks/post-receive

Step #4: Create a trigger at the development environment (and why you need ssh access from the workstation).
> git remote add web ssh://www.mydomain.com/path/to/dir/website.git
> git push web +master:refs/heads/master

Step #5: Code, Commit and Push to production
> echo 'Rocking website!' > index.html
> git add index.html
> git commit -q -m "The index file was commited"
> git push web

Bottom Line
It is a simple task, but tricky if you don't have a direct access to the server (anyone said Jenkins?)

Keep Performing,
Moshe Kaplan


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