Sam Stelfox

Thoughts from a software engineer, systems hacker and Linux gubernāre.

RPM Build

Sources:

Create a build user whose sole purpose is to handle building packages. Do not use root under any circumstances.

As root:

useradd mockbuild
echo -n 'mockbuild:password' | chpasswd

Its valuable to grant the mockbuild user sudo permissions to allow that user to install missing development packages.

yum install sudo -y
groupadd -g 400 sudoers
usermod -a -G sudoers mockbuild
echo '%sudoers ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers

And install the requisite tools:

yum install @development-tools fedora-packager wget -y

Login as the build user and setup the build environment.

rpmdev-setuptree
echo 'timestamping = on' > .wgetrc
echo '-R' > .curlrc

The latter bits setup preservation of files when downloading the packages with wget and curl.

Downloading existing source packages

yumdownloader --source nginx
rpm -ivh nginx*.src.rpm
rm nginx*.src.rpm

Running a spec

rpmbuild -ba ~/rpmbuild/SPECS/nginx.spec

When running the above command you will probably encounter missing dependencies.

For nginx these were:

sudo yum install GeoIP-devel gd-devel gperftools-devel libxslt-devel \
  openssl-devel pcre-devel perl-devel perl zlib-devel perl-ExtUtils-Embed -y

Modifying Nginx to include Lua support

Since we are going to be adding lua we need to make sure it is represented as dependencies by adding them to the spec files.

BuildRequires:     lua-devel
Requires:          lua

Download the ngx_devel_kit which is a module that provides common functions and useful utilities for other modules.

cd ~/rpmbuild/SOURCES
wget https://github.com/simpl/ngx_devel_kit/archive/v0.2.19.tar.gz
wget https://github.com/chaoslawful/lua-nginx-module/archive/v0.9.0.tar.gz

Add the following sources:

Source2: https://github.com/simpl/ngx_devel_kit/archive/v0.2.19.tar.gz
Source3: https://github.com/chaoslawful/lua-nginx-module/archive/v0.9.0.tar.gz

We need to make sure the additional tar balls are extracted. Add the following lines after the %setup -q line:

%setup -T -D -a 2 -n ngx_devel_kit-0.2.19
%setup -T -D -a 3 -n lua-nginx-module-0.9.0

For future reference the -D means dont delete the prior directories before uncompressing. The -a flag indicates the source number that should be processed. Finally the -T flag prevents the original tar ball from being extracted again. The -n flag fixes the name of the folder that the package gets uncompressed into.

At the beginning of the %build section we need to add a few additional exports.

export LUA_LIB=/usr/lib64
export LUA_INC=/usr/share/lua/5.1

Finally we need to add the compile flags to include the modules. Near the end of the ./configure flags (I Choose after the --with-pcre flag) add the following lines:

  --add-module=./ngx_devel_kit-0.2.19 \
  --add-module=./lua-nginx-module-0.9.0 \
yum install lua lua-socket lua-devel -y

Signing Packages

Source: