multi-environment git deployment with codeigniter - cicon2011
TRANSCRIPT
Multi-Environment Git Deployment with CodeIgniter-Ben Edmunds
• What is Git?
• Distributed Version Control
• Why use version control?
• Change tracking and roll-back
• Multi-developer projects
• Deployment
• Why use Git?
• Branching
• Feature branches
• Environment deployment with branches
• What is Deployment?
• Automated update and setup of code
• Why use deployments?
• FTP = nasty
• Humans suck
• Ease of use
Local Staging Production(Development) (QA) (Live)
Basic Deployment Scenario
Local Development Setup
$ git init$ git remote add origin yourRepo.git$ git pull origin master
$ git checkout -b staging$ git push origin staging
$ git checkout -b production$ git push origin master
Branch Setup
$ git checkout -b staging$ git push origin staging
$ git checkout -b production$ git push origin master
Deployment Code
<?php
define('ENV', 'production');define('ENV_BASE_PATH', '/home/benedmunds/domains/benedmunds.com/');
class Deployment extends CI_Controller{
function post_receive() { ... } }
?>
Deployment Code
post_receive() { ... }
• json_decode($_POST[‘payload’])
• Check payload ref against ENV
• Execute Git commands to clean and pull the correct branch
Deployment Codefunction post_receive(){ if (isset($_POST['payload']) && !empty($_POST['payload'])) { $payload = json_decode($_POST['payload']); //make sure this is the correct environment if ($payload->ref == 'refs/heads/' . ENV) { log_message('debug', 'DEPLOYMENT: Post-receive hook - '. ENV); //reset, clean and pull shell_exec('/usr/bin/git --git-dir="' . ENV_BASE_PATH . '.git" ‘ . ‘--work-tree="' . ENV_BASE_PATH . '" ‘ . ‘reset --hard HEAD'); shell_exec('/usr/bin/git --git-dir="' . ENV_BASE_PATH . '.git" ‘ . ‘--work-tree="' . ENV_BASE_PATH . '" clean -f'); shell_exec('/usr/bin/git --git-dir="' . ENV_BASE_PATH . '.git" ‘ . ‘--work-tree="' . ENV_BASE_PATH . '" ‘ . ‘pull origin ' . ENV); } } }
class Migration_Create_accounts extends Migration { function up() { $this->migrations->verbose AND print "Creating table accounts...";
if ( ! $this->db->table_exists('accounts')) { // Setup Keys $this->dbforge->add_key('id', TRUE);
$this->dbforge->add_field(array( 'id' => array('type' => 'INT', 'constraint' => 5, 'unsigned' => TRUE, 'auto_increment' => TRUE), 'company_name' => array('type' => 'VARCHAR', 'constraint' => '200', 'null' => FALSE), 'first_name' => array('type' => 'VARCHAR', 'constraint' => '200', 'null' => FALSE), 'last_name' => array('type' => 'VARCHAR', 'constraint' => '200', 'null' => FALSE), 'phone' => array('type' => 'TEXT', 'null' => FALSE), 'email' => array('type' => 'TEXT', 'null' => FALSE), 'address' => array('type' => 'TEXT', 'null' => FALSE), 'Last_Update' => array('type' => 'DATETIME', 'null' => FALSE) ));
$this->dbforge->add_field("Created_At TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP"); $this->dbforge->create_table('accounts', TRUE); } }
function down() { $this->dbforge->drop_table('accounts'); }}
Migrationshttps://github.com/philsturgeon/codeigniter-migrations
if ( ! $this->migration->latest()){ show_error($this->migration->error);}
Migrationshttps://github.com/philsturgeon/codeigniter-migrations
Staging Server Setup
$ git init$ git remote add origin yourRepo.git$ git pull origin staging
Production Server Setup
$ git init$ git remote add origin yourRepo.git$ git pull origin production
Github Post Receive Hook
Pushing to Master
$git checkout master$ git commit -am ‘Made code change’$ git push origin master
Local Github
Pushing to Staging
$ git checkout staging$ git merge master$ git push origin staging
Local Github Staging
Pushing to Production
$ git checkout production$ git merge staging$ git push origin production
Local Github Production
Local Staging Production(Development) (QA) (Live)
Multi-Environment Git Deployment with CodeIgniter-Ben Edmunds