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→Week 5 (February 8) - Repositories/Distributing
= Week 5 (February 8) - Repositories/Distributing =
== Signing RPM packages ==
An RPM signature, like the digital signature used on many other software-signing systems, is a private key encryption of a checksum. RPM uses the GPG libraries for signing.
# Create a GPG key: <code>gpg --gen-key</code>
# Add the e-mail address associated with your gpg key to the <code>%_gpg_name</code> macro in <code>~/.rpmmacros</code> -- the line will look like this: <code>%_gpg_name "<i>e-mail-address</i></code>
# Find (or make) some packages to put in your repository. Make sure that the epoch-version-release is higher than that of any package with the same name in the Fedora repositories.
# Sign those packages with: <code>rpm --addsign <i>packagefile</i></code>
== Creating a YUM repository ==
A yum repository is just a directory of packages and some metadata.
# Create a directory that can be served. The protocol used to serve that directory could be http, ftp, nfs, or something else (the files can be served by putting them on a DVD too!). For http, create the directory within <code>/var/www/html</code>
# Put your signed packages in that directory.
# Create the repository metadata for that directory: <code>createrepo <i>/name/of/directory</i></code>
Notice that the repository metadata will be placed in a directory named <code>repodata</code>
== Testing ==
# Create a new repository file in <code>/etc/yum.repos.d</code> by copying and modifying an existing file in that directory. Keep <code>gpgcheck=1</code> but comment out the <code>gpgkey</code> file.
# Confirm that you cannot install from that repository using yum.
# Uncomment the <code>gpgkey</code> line, and point it to a new file within <code>/etc/pki/rpm-gpg/</code>
# Create that file by running (as your regular user): <code>gpg --export --armour <i>e-mail-address</i></code> and saving the output
# Confirm that you can now install from your repository. You should be asked whether you wish to import the key for your repo.
== Guest Speakers: Ben Hearsum and Armen Zambrano ==
* Ben Hearsum and Armen Zambrano Gasparnian from the Mozilla build team will discuss what Build & Release means in the [http://mozilla.org/ Mozilla] context.
== ToDo ==
# Create an RPM package that will install your repository configuration file and the key.
# Test it.
# Blog about this lab, and include a link to your repository RPM package.
= Week 6 (February 15) - Compositing =
= Week 7 (February 22) - Server Farms I =