Amazon EC2

This is an expansion of Deployment page ,specifically for setting up an EC2 instance for use with git. Refer to the Deployment page first as it goes into more detail.

To SSH into the instance:

ssh -i imagineDev.pem [email protected]

From the dir containing the .pem file. pem must have 600 permission.

LAMP setup is standard:

sudo apt-get update
sudo apt-get install apache2
sudo apt-get install php5
sudo apt-get install libapache2-mod-php5
sudo apt-get install mysql-server
sudo apt-get install php5-mysql php5-curl php5-gd php5-idn php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-mhash php5-ming php5-ps php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl php5-json
sudo /etc/init.d/apache2 restart

install Git

sudo apt-get install git

Next up I mkdir Repos. Currently this is just outside www to mirror Live , but perhaps this should be moved.

Then

sudo mkdir testdev.git
 git init --bare

then in www create a matching dir

mkdir testdev

Then glone the Repo to the working dir

sudo git clone /var/Repos/testnew.git

Edit the hooks.

As per Andys instructions on the Deployment page , we need to setup a hook , which runs when the bare repo is pushed to .In the hooks dir:

nano post-recieve

Example hook script:

#!/bin/bash
export GIT_DIR=/var/www/test/testdev/.git/
export GIT_WORK_TREE=/var/www/test/testdev/
cd /var/www/test/testdev/

git fetch
git merge origin/master
git submodule update --init --recursive

then on the post-recviee file:

sudo chmod a-x post-receive

cd /var/www/testnew/testnew/.git$

Add the ubuntu user to the group. We login as Ubuntu to our dev sever as shown below.

sudo chgrp -R ubuntu *
sudo chmod -R g+ws *
git config core.sharedRepository true

http://ec2-54-247-139-221.eu-west-1.compute.amazonaws.com/var/Repos/testdev.git

To add the second remote from within the local repo:

git remote add dev ssh://176.34.177.224/var/Repos/testdev.git

We can make things easier by creating a shortcut like:

Host imaginedev 176.34.177.224
Hostname 176.34.177.224
User ubuntu
IdentityFile ~/.ssh/imagineDev.pem

in our ~/.ssh/config file.

This way we can then use something like :

imaginedev:/var/Repos/testtest.git

When we add our remote. Doing this also helps with the user issue.

Permissions.

permissions on .git/post-recieve need to be executable, other wise when pushing from local to dev you will receive warnings such as ‘HEAD_FETCH not writable’ etc.

permissions on the www/imagine-site need to be writable by the git user. Failure to do this will not result in an error message, but the working directory will not be updated , only the bare repo. This will then cause sync issues. 🙁

If the dev goes out of sync with local:

commit -a

On the dev/www/imagine-site dir and then push again from local.