Added Fabric Config

fabfile.py

@@ -0,0 +1,96 @@
+# Define the Fabric script
+# globals
+config.project_name = 'rockviewer'
+# environments
+def local():
+    "Use the local virtual server"
+    config.hosts = ['172.16.142.130']
+    config.path = '~/www/rockviewer'
+    config.user = 'shane'
+    config.virtualhost_path = "/"
+# tasks
+def test():
+    "Run the test suite and bail out if it fails"
+    local("cd $(project_name); python manage.py test", fail="abort")
+def setup():
+    """
+    Setup a fresh virtualenv as well as a few useful directories, then run
+    a full deployment
+    """
+    require('hosts', provided_by=[local])
+    require('path')
+    sudo('aptitude install -y python-setuptools')
+    sudo('easy_install pip')
+    sudo('pip install virtualenv')
+    sudo('aptitude install -y apache2')
+    sudo('aptitude install -y libapache2-mod-wsgi')
+    # we want rid of the defult apache config
+    sudo('cd /etc/apache2/sites-available/; a2dissite default;')
+    run('mkdir -p $(path); cd $(path); virtualenv .;')
+    run('cd $(path); mkdir releases; mkdir shared; mkdir packages;', fail='ignore')
+    deploy()
+def deploy():
+    """
+    Deploy the latest version of the site to the servers, install any
+    required third party modules, install the virtual host and 
+    then restart the webserver
+    """
+    require('hosts', provided_by=[local])
+    require('path')
+    import time
+    config.release = time.strftime('%Y%m%d%H%M%S')
+    upload_tar_from_git()
+    install_requirements()
+    install_site()
+    symlink_current_release()
+    migrate()
+    restart_webserver()
+def deploy_version(version):
+    "Specify a specific version to be made live"
+    require('hosts', provided_by=[local])
+    require('path')
+    config.version = version
+    run('cd $(path); rm releases/previous; mv releases/current releases/previous;')
+    run('cd $(path); ln -s $(version) releases/current')
+    restart_webserver()
+def rollback():
+    """
+    Limited rollback capability. Simple loads the previously current
+    version of the code. Rolling back again will swap between the two.
+    """
+    require('hosts', provided_by=[local])
+    require('path')
+    run('cd $(path); mv releases/current releases/_previous;')
+    run('cd $(path); mv releases/previous releases/current;')
+    run('cd $(path); mv releases/_previous releases/previous;')
+    restart_webserver()    
+# Helpers. These are called by other functions rather than directly
+def upload_tar_from_git():
+    require('release', provided_by=[deploy, setup])
+    "Create an archive from the current Git master branch and upload it"
+    local('git archive --format=tar master | gzip > $(release).tar.gz')
+    run('mkdir $(path)/releases/$(release)')
+    put('$(release).tar.gz', '$(path)/packages/')
+    run('cd $(path)/releases/$(release) && tar zxf ../../packages/$(release).tar.gz')
+    local('rm $(release).tar.gz')
+def install_site():
+    "Add the virtualhost file to apache"
+    require('release', provided_by=[deploy, setup])
+    sudo('cd $(path)/releases/$(release); cp $(project_name)$(virtualhost_path)$(project_name) /etc/apache2/sites-available/')
+    sudo('cd /etc/apache2/sites-available/; a2ensite $(project_name)') 
+def install_requirements():
+    "Install the required packages from the requirements file using pip"
+    require('release', provided_by=[deploy, setup])
+    run('cd $(path); pip install -E . -r ./releases/$(release)/requirements.txt')
+def symlink_current_release():
+    "Symlink our current release"
+    require('release', provided_by=[deploy, setup])
+    run('cd $(path); rm releases/previous; mv releases/current releases/previous;', fail='ignore')
+    run('cd $(path); ln -s $(release) releases/current')
+def migrate():
+    "Update the database"
+    require('project_name')
+    run('cd $(path)/releases/current/$(project_name);  ../../../bin/python manage.py syncdb --noinput')
+def restart_webserver():
+    "Restart the web server"
+    sudo('/etc/init.d/apache2 restart')