ci(fedora41): use `dnf.conf` for options and simplify `dnf install` CLI

.gitlab/ci/docker/fedora41/Dockerfile

@@ -4,25 +4,21 @@ ARG BASE_IMAGE=fedora:41
 
 FROM ${BASE_IMAGE} AS dnf-cache
 # Populate DNF cache w/ the fresh metadata and prefetch packages.
-RUN --mount=type=bind,source=deps_packages.lst,target=/root/deps_packages.lst \
+RUN --mount=type=bind,source=dnf.conf,target=/etc/dnf/dnf.conf \
+    --mount=type=bind,source=deps_packages.lst,target=/root/deps_packages.lst \
     --mount=type=bind,source=iwyu_packages.lst,target=/root/iwyu_packages.lst \
     --mount=type=bind,source=rust_packages.lst,target=/root/rust_packages.lst \
     --mount=type=bind,source=rvm_packages.lst,target=/root/rvm_packages.lst \
     --mount=type=tmpfs,target=/var/log \
     --mount=type=tmpfs,target=/tmp \
-    dnf install \
-        --setopt=install_weak_deps=False \
-        --setopt=fastestmirror=True \
-        --setopt=max_parallel_downloads=10 \
-        --downloadonly \
-        -y \
-        $(grep -h '^[^#]\+$' /root/*.lst)
+    dnf install --downloadonly -y $(grep -h '^[^#]\+$' /root/*.lst)
 
 
 FROM ${BASE_IMAGE} AS rust-build
 LABEL maintainer="Ben Boeckel <ben.boeckel@kitware.com>"
 
-RUN --mount=type=bind,source=install_rust.sh,target=/root/install_rust.sh \
+RUN --mount=type=bind,source=dnf.conf,target=/etc/dnf/dnf.conf \
+    --mount=type=bind,source=install_rust.sh,target=/root/install_rust.sh \
     --mount=type=bind,source=rust_packages.lst,target=/root/rust_packages.lst \
     --mount=type=cache,from=dnf-cache,source=/var/lib/dnf,target=/var/lib/dnf,sharing=private \
     --mount=type=tmpfs,target=/var/log \
@@ -32,7 +28,8 @@ RUN --mount=type=bind,source=install_rust.sh,target=/root/install_rust.sh \
 FROM ${BASE_IMAGE} AS rvm-build
 LABEL maintainer="Ben Boeckel <ben.boeckel@kitware.com>"
 
-RUN --mount=type=bind,source=install_rvm.sh,target=/root/install_rvm.sh \
+RUN --mount=type=bind,source=dnf.conf,target=/etc/dnf/dnf.conf \
+    --mount=type=bind,source=install_rvm.sh,target=/root/install_rvm.sh \
     --mount=type=bind,source=rvm_packages.lst,target=/root/rvm_packages.lst \
     --mount=type=cache,from=dnf-cache,source=/var/lib/dnf,target=/var/lib/dnf,sharing=private \
     --mount=type=tmpfs,target=/var/log \
@@ -43,7 +40,8 @@ RUN --mount=type=bind,source=install_rvm.sh,target=/root/install_rvm.sh \
 FROM ${BASE_IMAGE} AS iwyu-build
 LABEL maintainer="Kyle Edwards <kyle.edwards@kitware.com>"
 
-RUN --mount=type=bind,source=install_iwyu.sh,target=/root/install_iwyu.sh \
+RUN --mount=type=bind,source=dnf.conf,target=/etc/dnf/dnf.conf \
+    --mount=type=bind,source=install_iwyu.sh,target=/root/install_iwyu.sh \
     --mount=type=bind,source=iwyu_packages.lst,target=/root/iwyu_packages.lst \
     --mount=type=cache,from=dnf-cache,source=/var/lib/dnf,target=/var/lib/dnf,sharing=private \
     --mount=type=tmpfs,target=/var/log \
@@ -56,7 +54,8 @@ LABEL maintainer="Ben Boeckel <ben.boeckel@kitware.com>"
 
 ENV RBENV_ROOT=/opt/rbenv
 
-RUN --mount=type=bind,source=install_deps.sh,target=/root/install_deps.sh \
+RUN --mount=type=bind,source=dnf.conf,target=/etc/dnf/dnf.conf \
+    --mount=type=bind,source=install_deps.sh,target=/root/install_deps.sh \
     --mount=type=bind,source=deps_packages.lst,target=/root/deps_packages.lst \
     --mount=type=cache,from=dnf-cache,source=/var/lib/dnf,target=/var/lib/dnf,sharing=private \
     --mount=type=cache,target=/var/cache/pip \

.gitlab/ci/docker/fedora41/dnf.conf

@@ -0,0 +1,32 @@
+[main]
+autocheck_running_kernel=0
+debuglevel=2
+diskspacecheck=0
+fastestmirror=1
+gpgcheck=1
+installonly_limit=5
+install_weak_deps=0
+keepcache=1
+log_rotate=0
+max_parallel_downloads=10
+metadata_expire=90m
+multilib_policy=best
+plugins=1
+tsflags=nodocs
+
+# Enable color for all output
+color=always
+
+# Default color options according to yum.conf(5)
+color_list_installed_older=bold,black
+color_list_installed_newer=bold,yellow
+color_list_installed_reinstall=normal
+color_list_installed_extra=bold,red
+color_list_available_upgrade=bold,blue
+color_list_available_downgrade=dim,yellow
+color_list_available_install=normal
+color_list_available_reinstall =bold,underline,green
+color_search_match=bold,magenta
+color_update_installed=green
+color_update_local=cyan
+color_update_remote=yellow

.gitlab/ci/docker/fedora41/install_deps.sh

@@ -2,12 +2,7 @@
 
 set -e
 
-dnf install \
-    --setopt=install_weak_deps=False \
-    --setopt=fastestmirror=True \
-    --setopt=max_parallel_downloads=10 \
-    -y \
-    $(grep '^[^#]\+$' /root/deps_packages.lst)
+dnf install -y $(grep '^[^#]\+$' /root/deps_packages.lst)
 
 # Remove tests for numpy
 for v in 3.13; do

.gitlab/ci/docker/fedora41/install_iwyu.sh

@@ -3,12 +3,7 @@
 set -e
 
 # Install development tools.
-dnf install \
-    --setopt=install_weak_deps=False \
-    --setopt=fastestmirror=True \
-    --setopt=max_parallel_downloads=10 \
-    -y \
-    $(grep '^[^#]\+$' /root/iwyu_packages.lst)
+dnf install -y $(grep '^[^#]\+$' /root/iwyu_packages.lst)
 
 cd /root
 git clone "https://github.com/include-what-you-use/include-what-you-use.git"

.gitlab/ci/docker/fedora41/install_rust.sh

@@ -2,12 +2,7 @@
 
 set -e
 
-dnf install \
-    --setopt=install_weak_deps=False \
-    --setopt=fastestmirror=True \
-    --setopt=max_parallel_downloads=10 \
-    -y \
-    $(grep '^[^#]\+$' /root/rust_packages.lst)
+dnf install -y $(grep '^[^#]\+$' /root/rust_packages.lst)
 
 typos_version=1.29.4
 cargo install --root /usr/local --version "$typos_version" typos-cli

.gitlab/ci/docker/fedora41/install_rvm.sh

@@ -2,12 +2,7 @@
 
 set -e
 
-dnf install \
-    --setopt=install_weak_deps=False \
-    --setopt=fastestmirror=True \
-    --setopt=max_parallel_downloads=10 \
-    -y \
-    $(grep '^[^#]\+$' /root/rvm_packages.lst)
+dnf install -y $(grep '^[^#]\+$' /root/rvm_packages.lst)
 
 gpg2 --keyserver hkps://keyserver.ubuntu.com \
      --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 \