Renoir Boulanger Un geek social et Linuxien de nature

Install PHP5 Memcached PECL extension and have it support igbinary

Main part of my job is to make sure that its easy to reinstall a VM. Sometimes you need to build a package from source. How do you distribute it? Here’s one way

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.

Before: session handlers shows memcached
Before: igbinary support no?

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 download memcached-${pecl_memcached_ver}
    tar xzvf memcached-${pecl_memcached_ver}.tgz
    cd memcached-${pecl_memcached_ver}/
  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/ 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) ...


  6. Look at the phpinfo

Ater: registered session handlers

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


Comments are closed.