A key skill for a system administrator is being able to deploy your own custom software. However, you first need to build an RPM package that contains your custom software. To build an RPM, you must do the following:
Step 1. Create a directory hierarchy
BUILD Contains scratch space used to compile software
RPMS Hold the source code for the RPM
SOURCES Contains the spec file(s)
SRPMS Contains the source RPM built during the process
Step 2. Copy or create you source code into the directory hierarchy
Step 3. Create a specific file
Step 4. Build the RPM
Aside from the directories we have covered, you also need to install a few packages.
Now, Let’s start to create an RPM
Step 1. Verify the packages are installed correctly:
# yum install -y rpm-build
Step 2. Create the required directories:
This is a personal preference to build packages under the /usr/src directory. The tmp directory is used as temporary build directory as well.
Step 3. Create a directory with some sample files that you’d like in the package:
# mkdir /usr/src/redhat/mysample # cd /usr/src/redhat/mysample # touch first_file second_file keys config_file |
Step 4. Create an archive file based on your sample source:
# cd /usr/src/redhat # tar cf mysample.tar.gz mysample # mv mysample.tar.gz SOURCES/ |
Step 5. Create spec file for instructions (sample.spec)
Summary: This package is a sample. Name: mysample Version: 1.0 Release: 0 License: GPL Packager: Han Thuy Group: Development/Tools Source: %{name}.tar.gz BuildRoot: /usr/src/redhat/tmp/%{name}-%{version} %description This package is just a sample. %prep %setup -n mysample %install mkdir -p "$RPM_BUILD_ROOT/opt/sample_pkge" cp -R * "$RPM_BUILD_ROOT/opt/sample_pkge" %files /opt/sample_pkge %clean rm -rf "$RPM_BUILD_ROOT" %post chown root:root -R /opt/sample_pkge chmod 775 -R /opt/sample_pkge |
Step 6. Build the package with the rpmbuild command:
# rpmbuild -v -bb /usr/src/redhat/SPECS/sample.spec
Step 7. View the new RPM package:
Step 8: Install and verify the new package to ensure that is works properly:
Have fun!