| Table of Contents |
|---|
Documentation
...
https://docs.fedoraproject.org/en-US/modularity/
...
https://dnf.readthedocs.io/en/latest/
...
https://dnf-plugins-core.readthedocs.io/en/latest/
...
https://sgallagh.wordpress.com/2019/08/14/sausage-factory-modules-fake-it-till-you-make-it/
Building a module outside of Fedora
https://pagure.io/modularity/issue/141
> * AGREED: Profiles cannot be removed during the lifetime of the stream in order to avoid breaking scripts. Options may exist for exceptional cases on an individual basis. (contyk, 15:41:06)
Goals
Can the ISO build still reduce packages
Modularity CLI examples
...
Goals
Assuming at least some of the packages involved belong to repo modules, determine how to handle:
pkglist + packages.yaml => tarball ISO
Can the pkg/tar/ISO build process still create a usable ISO as it currently does, by:
filtering an OS ISO down to its pkglist
adding external packages in packages.yaml
running repoclosure
If it can be done: How?
If not: What alternatives are there?
unpack_dvd & kickstart repositories
How should unpack_dvd handle repos that do/may contain modules?
SELinux
Where do the policies for the packages in various module streams come from?
Modularity CLI examples
Simple dnf module commands
View all modules
| Code Block |
|---|
dnf module list --all |
View a module’s available streams
| Code Block | ||
|---|---|---|
| ||
# dnf module list --available nodejs
Waiting for process with pid 79896 to finish.
Last metadata expiration check: 0:00:01 ago on Fri 12 Mar 2021 02:03:02 AM UTC.
CentOS Linux 8 - AppStream
Name Stream Profiles Summary
nodejs 10 [d] common [d], development, minimal, s2i Javascript runtime
nodejs 12 common [d], development, minimal, s2i Javascript runtime
nodejs 14 common [d], development, minimal, s2i Javascript runtime
Extra Packages for Enterprise Linux Modular 8 - x86_64
Name Stream Profiles Summary
nodejs 13 default, development, minimal Javascript runtime
Hint: [d]efault, [e]nabled, [x]disabled, [i]nstalled
|
View packages in a module
| Code Block |
|---|
dnf module repoquery nodejs |
| Info |
|---|
It looks |
View modules/profiles that provide a package
| Code Block |
|---|
dnf module provides nodejs |
| Info |
|---|
This is one of the few module commands that lists the Repo that provides the module |
View the packages in each profile (for a specific stream)
| Code Block | ||
|---|---|---|
| ||
]# dnf module info --profile nodejs:12
Last metadata expiration check: 2:59:10 ago on Thu 11 Mar 2021 11:02:32 PM UTC.
Name : nodejs:12:8030020210304194546:30b713e6:x86_64
common : nodejs
: npm
development : nodejs
: nodejs-devel
: npm
minimal : nodejs
s2i : nodejs
: nodejs-nodemon
: npm
|
Find all modular RPM files that under a directory and print their module headers
...
| Note |
|---|
By convention, RPMs' |
Note that the repo2module tool just creates a default profile called everything.
| Note |
|---|
We can’t rely on RPMs' “The |
...
Mirror the contents of a DNF repository, preserving all modules and package groups.
The current state of CentOS 8 createrepo_c + modulemd-tools (EPEL8) allow us to:
(Works from CentOS 8.3 and CentOS 7.8, requires packages dnf and dnf-plugin-core )
...
| Code Block | ||
|---|---|---|
| ||
PATH_TO_LOCAL_MIRROR=/path/to/Appstream PATH_TO_SOURCE_REPO=/mnt/AppStream dnf reposync \ --download-metadata --downloadcomps \ --download-path "$PATH_TO_LOCAL_MIRROR" \ --repofrompath iso,"$PATH_TO_SOURCE_REPO" \ --repoid iso # Useful EL8-only options: --remote-time --norepopath |
This dnf reposync should probably be the only kind of modular-capable mirroring that on-site scripts tools like unpack_dvd should use.
DNF repoclosure
The ISO build process (really the tar build process) runs repoclosure to make sure the packages on the ISO will be self-contained.
| Code Block |
|---|
dnf repoclosure --repofrompath iso,"$PWD" --repo appstream --repo baseos |
| Info |
|---|
Judging by the bug report at https://bugzilla.redhat.com/show_bug.cgi?id=1547041, The current behavior only resolves module packages using default or enabled streams & profiles. |
Documentation
...
https://sgallagh.wordpress.com/2019/08/14/sausage-factory-modules-fake-it-till-you-make-it/
Notes on building modules independently of Fedora’s hosted build system
https://pagure.io/modularity/issue/141
> * AGREED: Profiles cannot be removed during the lifetime of the stream in order to avoid breaking scripts. Options may exist for exceptional cases on an individual basis. (contyk, 15:41:06)