chore(ci): conditional pin to repo variable RPMFUSION_MIRROR (#195)

Prompted by ocf.berkeley being down for a system rebuildand the proven usefulness of using a single mirror, this approach allows local builds with no build-args to work with a default RPMFusion mirror metalink setup, but in case of the build arg (in our CI, a repo variable) RPMFUSION_MIRROR being set, that URL will be substituted as the forced single mirror repo.

.github/workflows/build.yml

@@ -170,6 +170,7 @@ jobs:
             IMAGE_NAME=${{ matrix.image_name }}
             FEDORA_MAJOR_VERSION=${{ matrix.major_version }}
             NVIDIA_MAJOR_VERSION=${{ matrix.driver_version }}
+            RPMFUSION_MIRROR=${{ vars.RPMFUSION_MIRROR }}
           labels: ${{ steps.meta.outputs.labels }}
           oci: false
 

Containerfile

@@ -9,6 +9,7 @@ ARG IMAGE_VENDOR="ublue-os"
 ARG IMAGE_FLAVOR="${IMAGE_FLAVOR:-nvidia}"
 ARG FEDORA_MAJOR_VERSION="${FEDORA_MAJOR_VERSION:-39}"
 ARG NVIDIA_MAJOR_VERSION="${NVIDIA_MAJOR_VERSION:-545}"
+ARG RPMFUSION_MIRROR=""
 
 COPY image-info.sh /tmp/image-info.sh
 COPY install.sh /tmp/install.sh

install.sh

@@ -8,12 +8,15 @@ else
     sed -i 's@enabled=1@enabled=0@g' /etc/yum.repos.d/fedora-cisco-openh264.repo
 fi
 
-# force use of single rpmfusion mirror
-sed -i.bak 's%^metalink=%#metalink=%' /etc/yum.repos.d/rpmfusion-*.repo
-sed -i 's%^#baseurl=http://download1.rpmfusion.org%baseurl=http://mirrors.ocf.berkeley.edu/rpmfusion%' /etc/yum.repos.d/rpmfusion-*.repo
-# after F40 launches, bump to 41
-if [[ "${FEDORA_MAJOR_VERSION}" -ge 40 ]]; then
-    sed -i 's%free/fedora/releases%free/fedora/development%' /etc/yum.repos.d/rpmfusion-*.repo
+if [ -n "${RPMFUSION_MIRROR}" ]; then
+    # force use of single rpmfusion mirror
+    echo "Using single rpmfusion mirror: ${RPMFUSION_MIRROR}"
+    sed -i.bak "s%^metalink=%#metalink=%" /etc/yum.repos.d/rpmfusion-*.repo
+    sed -i "s%^#baseurl=http://download1.rpmfusion.org%baseurl=${RPMFUSION_MIRROR}%" /etc/yum.repos.d/rpmfusion-*.repo
+    # after F40 launches, bump to 41
+    if [[ "${FEDORA_MAJOR_VERSION}" -ge 40 ]]; then
+        sed -i "s%free/fedora/releases%free/fedora/development%" /etc/yum.repos.d/rpmfusion-*.repo
+    fi
 fi
 
 rpm-ostree install \
@@ -35,5 +38,8 @@ rpm-ostree install \
     nvidia-container-toolkit nvidia-vaapi-driver supergfxctl ${VARIANT_PKGS} \
     /tmp/akmods-rpms/kmods/kmod-${NVIDIA_PACKAGE_NAME}-${KERNEL_VERSION}-${NVIDIA_AKMOD_VERSION}.fc${RELEASE}.rpm
 
-# reset forced use of single rpmfusion mirror
-rename -v .repo.bak .repo /etc/yum.repos.d/rpmfusion-*repo.bak
+if [ -n "${RPMFUSION_MIRROR}" ]; then
+    # reset forced use of single rpmfusion mirror
+    echo "Revert from single rpmfusion mirror: ${RPMFUSION_MIRROR}"
+    rename -v .repo.bak .repo /etc/yum.repos.d/rpmfusion-*repo.bak
+fi