PHP : Setup server for capistrano deployment

23 Jun 2015

When I was Rails developer I used to deploy using capistrano with a single command

cap production deploy

But when I came back to PHP development, the old FTP drag and drop welcomed me and I was like WTF?. I couldn’t agree to this, since it takes too much time for deployment. So I decided to setup capistrano for my Yii project.

Since I was a ruby developer all the ruby and capistrano setup was already there in my laptop. But I need to setup these things in server. This blog post deals only with the setting up server only. The setting up of Yii project for capistation deployment comes in next post.

Setting up server

Installing ruby, git and capistrano

First step to setting up server for cap deployment is install ruby and git. I usually install ruby using Ruby Version Manager (rvm). It helps me to manage the ruby versions.

apt-get install -y build-essential git-core libyaml-dev 
 
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
curl -L get.rvm.io | bash -s stable
 
source /home/lookup/.rvm/scripts/rvm
rvm reload
rvm install 2.2.2
 
gem install capistrano --no-ri --no-rdoc

Add a usergroup and user for deployment.

After installing ruby and git, we need to add a new usergroup and user for deployment and give appropriate permissions for the deployment directory. I used the default /var/www directory for the deployment.

sudo addgroup www # create a new usergroup
sudo adduser deploy # create a new user
sudo adduser deploy www # add deploy user to www group

Since apache will run as www-data user we need to add www-data to our newly created user group.

sudo adduser www-data www

Now we need to give appropriate permission for the usergroup. Open /etc/sudoers file and add the following.

# open /etc/sudoers
deploy ALL=(ALL:ALL) ALL

and run the following commands to set the permissions of deploy directory in my case /var/www for deploy user.

# Set the ownership of the folder to members of `www` group
sudo chown -R :www  /var/www
 
# Set folder permissions recursively
sudo chmod -R g+rwX /var/www
 
# Ensure permissions will affect future sub-directories etc.
sudo chmod g+s /var/www

Now our server is ready for deployment. Next we need to setup our Yii project.

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