Renoir Boulanger Un geek social et Linuxien de nature

I was trying to figure out why my PHP setup would never have both igbinary to be used to serialize sessions in Memcached using current Memcached PECL extension.

After some research I found a procedure in an answer on StackOverflow.

But it didn’t solve my main requirement: Since I do automated deployment, I MUST be able to move packages around. Since all my VMs are using the same distribution and that I already have my own apt repo, I could just add one more deb file.

My objective was then now to package it for deployment. To do this, I discovered Jordan Sissel’s project called fpm which stands for “Freaking Package Manager” (sic)

My target deployment runs on Ubuntu 14.04 LTS and I want it to replace upstream php5-memcached package as a simple .deb file.

Build from PECL source

NOTE The following was run on an Ubuntu 14.04 VM with @rynop’s procedure.

1. Setting the machine up to make a package.

   mkdir /tmp/php5-memcached
   cd /tmp/php5-memcached
   apt-get install -y php5-dev pkg-config php-pear
   

2. Follow steps from the procedure. Those were taken from the Original procedure, just before issuing ./configure.

   pecl_memcached_ver="2.2.0"
   pecl download memcached-${pecl_memcached_ver}
   tar xzvf memcached-${pecl_memcached_ver}.tgz
   cd memcached-${pecl_memcached_ver}/
   phpize
   

3. I realized that under Ubuntu 14.04 we also needed to disable Memcached SASL so I had to do it differently

   ./configure --enable-memcached-igbinary --disable-memcached-sasl
   

Make a .deb package

1. Install jordansissel/fpm

   apt-get install -y ruby-dev gcc
   gem install fpm
   

2. Check the package contents you want to replace and let’s replicate for our own purposes.

   dpkg --list | grep php5-memcached
   find /var/cache/apt -type f -name '*php5-memcached*'
   dpkg -c /var/cache/apt/archives/php5-memcached_2.1.0-6build1_amd64.deb
   

3. I figured out in the output that I only needed a few folders, etc/php5/mods-available/ and usr/lib/php5/foo, so I created them manually.

   mkdir -p etc/php5/mods-available/
   // Adjust memcached.ini to suit your tastes, then prepare it for packaging
   cp memcached.ini etc/php5/mods-available/
   // Make sure the usr/lib/php5/foo path matches in 
   // the result of `dpkg -c` you issued
   mkdir -p usr/lib/php5/20121212/
   cp modules/memcached.so usr/lib/php5/20121212/
   

4. Magic will happen

   fpm -s dir -t deb -n php5-memcached -v 2.2.0-wpd -m '<[email protected]>' --description 'PHP 5.5 PECL igbinary + memcached support' -d libmemcached10 etc/ usr/
   

   I could have used --replaces REPLACES in fpm options, but when I did this package, I didn’t know which syntax to use. Its an optional argument anyway.

5. Test if the package works

   dpkg -i php5-memcached_2.2.0-wpd_amd64.deb
   root@project:/srv/webplatform/buggenie# dpkg -i /srv/webplatform/apt/php5-memcached_2.2.0-wpd_amd64.deb
   (Reading database ... 118781 files and directories currently installed.)
   Preparing to unpack .../php5-memcached_2.2.0-wpd_amd64.deb ...
   Unpacking php5-memcached (2.2.0-wpd) over (2.1.0-6build1) ...
   Setting up php5-memcached (2.2.0-wpd) ...
   

   Success!

6. Look at the phpinfo

Update your private apt repository (or create one)

1. Then, in your own apt repository (if you do have one) here’s how I rebuild the index. Not that its not more complex than a folder with a bunch of deb files

   mkdir -p /srv/apt
   cp php5-memcached_2.2.0-wpd_amd64.deb /srv/apt
   cd  /srv/apt
   apt-get install -y dpkg-dev
   dpkg-scanpackages . /dev/null | gzip -9c > Packages.gz
   echo 'deb file:/srv/apt ./' > /etc/apt/sources.list.d/foo.list
   

Done!