chore(ci): speedup builds with cache mount

Containerfile

@@ -9,7 +9,7 @@ ARG NVIDIA_TYPE="${NVIDIA_TYPE:-}"
 ARG KERNEL="${KERNEL:-6.9.7-200.fc40.x86_64}"
 ARG UBLUE_IMAGE_TAG="${UBLUE_IMAGE_TAG:-latest}"
 
-# FROM's for copying
+# FROM's for Mounting
 ARG KMOD_SOURCE_COMMON="ghcr.io/ublue-os/akmods:${AKMODS_FLAVOR}-${FEDORA_MAJOR_VERSION}"
 ARG ZFS_CACHE="ghcr.io/ublue-os/akmods-zfs:coreos-stable-${FEDORA_MAJOR_VERSION}"
 ARG NVIDIA_CACHE="ghcr.io/ublue-os/akmods-nvidia:${AKMODS_FLAVOR}-${FEDORA_MAJOR_VERSION}"
@@ -19,6 +19,9 @@ FROM ${ZFS_CACHE} AS zfs_cache
 FROM ${NVIDIA_CACHE} AS nvidia_cache
 FROM ${KERNEL_CACHE} AS kernel_cache
 
+FROM scratch AS ctx
+COPY / /
+
 ## bluefin image section
 FROM ${BASE_IMAGE}:${FEDORA_MAJOR_VERSION} AS base
 
@@ -32,30 +35,19 @@ ARG NVIDIA_TYPE="${NVIDIA_TYPE:-}"
 ARG KERNEL="${KERNEL:-6.9.7-200.fc40.x86_64}"
 ARG UBLUE_IMAGE_TAG="${UBLUE_IMAGE_TAG:-latest}"
 
-# COPY Build Files
-COPY build_files/base build_files/shared /tmp/build/
-COPY system_files/shared system_files/${BASE_IMAGE_NAME} /
-COPY just /tmp/just
-COPY packages.json /tmp/packages.json
-
-# Copy ublue-update.toml to tmp first, to avoid being overwritten.
-COPY /system_files/shared/usr/etc/ublue-update/ublue-update.toml /tmp/ublue-update.toml
-# COPY ublue kmods, add needed negativo17 repo and then immediately disable due to incompatibility with RPMFusion
-# COPY --from=akmods /rpms /tmp/akmods-rpms
-# COPY --from=nvidia_cache /rpms /tmp/akmods-rpms
-# COPY --from=kernel_cache /tmp/rpms /tmp/kernel-rpms
 
 # Build, cleanup, commit.
-RUN --mount=type=bind,from=akmods,source=/rpms,target=/tmp/akmods \
+RUN --mount=type=cache,dst=/var/cache/rpm-ostree \
+    --mount=type=bind,from=ctx,source=/,target=/ctx \
+    --mount=type=bind,from=akmods,source=/rpms,target=/tmp/akmods \
     --mount=type=bind,from=nvidia_cache,source=/rpms,target=/tmp/akmods-rpms \
     --mount=type=bind,from=kernel_cache,source=/tmp/rpms,target=/tmp/kernel-rpms \
     --mount=type=bind,from=zfs_cache,source=/rpms,target=/tmp/akmods-zfs \
     rpm-ostree cliwrap install-to-root / && \
     mkdir -p /var/lib/alternatives && \
-    bash -c ". /tmp/build/build-base.sh"  && \
+    /ctx/build_files/build-base.sh  && \
     mv /var/lib/alternatives /staged-alternatives && \
-    rm -rf /tmp/* || true && \
-    rm -rf /var/* || true && \
+    /ctx/build_files/clean-stage.sh && \
     ostree container commit && \
     mkdir -p /var/lib && mv /staged-alternatives /var/lib/alternatives && \
     mkdir -p /var/tmp && \
@@ -74,22 +66,15 @@ ARG NVIDIA_TYPE="${NVIDIA_TYPE:-}"
 ARG KERNEL="${KERNEL:-6.9.7-200.fc40.x86_64}"
 ARG UBLUE_IMAGE_TAG="${UBLUE_IMAGE_TAG:-latest}"
 
-# dx specific files come from the dx directory in this repo
-COPY build_files/dx build_files/shared /tmp/build/
-COPY system_files/dx /
-COPY packages.json /tmp/packages.json
-
-# Copy akmods from ublue
-# COPY --from=akmods /rpms /tmp/akmods-rpms
-
 # Build, Clean-up, Commit
-RUN --mount=type=bind,from=akmods,source=/rpms,target=/tmp/akmods \
+RUN --mount=type=cache,dst=/var/cache/rpm-ostree \
+    --mount=type=bind,from=ctx,source=/,target=/ctx \
+    --mount=type=bind,from=akmods,source=/rpms,target=/tmp/akmods \
     mkdir -p /var/lib/alternatives && \
-    bash -c ". /tmp/build/build-dx.sh"  && \
+    /ctx/build_files/build-dx.sh  && \
     fc-cache --system-only --really-force --verbose && \
     mv /var/lib/alternatives /staged-alternatives && \
-    rm -rf /tmp/* || true && \
-    rm -rf /var/* || true && \
+    /ctx/build_files/clean-stage.sh \
     ostree container commit && \
     mkdir -p /var/lib && mv /staged-alternatives /var/lib/alternatives && \
     mkdir -p /var/tmp && \

build_files/build-base.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/bash
+# shellcheck disable=SC1091
+
+set -ouex pipefail
+
+cp -r /ctx/just /tmp/just
+cp /ctx/packages.json /tmp/packages.json
+cp /ctx/system_files/shared/usr/etc/ublue-update/ublue-update.toml /tmp/ublue-update.toml
+
+rsync -rvK /ctx/system_files/shared/ /
+rsync -rvK /ctx/system_files/"${BASE_IMAGE_NAME}"/ /
+
+/ctx/build_files/firmware.sh
+/ctx/build_files/cache_kernel.sh
+/ctx/build_files/copr-repos.sh
+/ctx/build_files/install-akmods.sh
+/ctx/build_files/packages.sh
+/ctx/build_files/nvidia.sh
+/ctx/build_files/image-info.sh
+/ctx/build_files/fetch-install.sh
+/ctx/build_files/brew.sh
+/ctx/build_files/fetch-quadlets.sh
+/ctx/build_files/font-install.sh
+/ctx/build_files/systemd.sh
+/ctx/build_files/bluefin-changes.sh
+/ctx/build_files/aurora-changes.sh
+/ctx/build_files/branding.sh
+/ctx/build_files/initramfs.sh
+/ctx/build_files/bootc.sh
+/ctx/build_files/cleanup.sh

build_files/build-dx.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/bash
+# shellcheck disable=SC1091
+
+set -ouex pipefail
+
+# Apply IP Forwarding before installing Docker to prevent messing with LXC networking
+sysctl -p
+
+cp /ctx/packages.json /tmp/packages.json
+rsync -rvK /ctx/system_files/dx/ /
+
+/ctx/build_files/copr-repos-dx.sh
+/ctx/build_files/install-akmods-dx.sh
+/ctx/build_files/packages-dx.sh
+/ctx/build_files/image-info.sh
+/ctx/build_files/fetch-install-dx.sh
+/ctx/build_files/fonts-dx.sh
+/ctx/build_files/workarounds.sh
+/ctx/build_files/systemd-dx.sh
+/ctx/build_files/branding-dx.sh
+/ctx/build_files/cleanup-dx.sh

build_files/clean-stage.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/bash
+
+set -eoux pipefail
+shopt -s extglob
+
+rm -rf /tmp/* || true
+rm -rf /var/!(cache)
+rm -rf /var/cache/!(rpm-ostree)