feat: swap out custom build for RPM of vanilla-first-setup (#59)

Containerfile

@@ -1,38 +1,21 @@
 # Multi-stage build
 ARG FEDORA_MAJOR_VERSION=37
 
-## Build vanilla-first-setup
-FROM ubuntu:22.04 AS build
-
-RUN apt-get update && apt-get install -y \
-    build-essential meson libadwaita-1-dev \
-    gettext desktop-file-utils git
-
-# Checkout the last tested/known working commit, in liu of an upstream release
-RUN git clone https://github.com/Vanilla-OS/first-setup.git && \
-    cd first-setup && git checkout bf21de5
-WORKDIR first-setup
-RUN meson build --prefix /usr && ninja -C build
-RUN DESTDIR=/opt ninja -C build install
-RUN tar cfz vanilla-first-setup.tar.gz /opt
-
 ## Build ublue-os-base
 FROM quay.io/fedora-ostree-desktops/silverblue:${FEDORA_MAJOR_VERSION}
 # See https://pagure.io/releng/issue/11047 for final location
 
-## Install the VanillaOS first-setup utility
-COPY --from=build /first-setup/vanilla-first-setup.tar.gz /
-RUN tar xf vanilla-first-setup.tar.gz --strip-component=1 -C / && \
-    chmod +x /usr/bin/vanilla-first-setup && \
-    ostree container commit
+# Add Vanilla First Setup
+RUN wget https://copr.fedorainfracloud.org/coprs/ublue-os/vanilla-first-setup/repo/fedora-$(rpm -E %fedora)/ublue-os-vanilla-first-setup-fedora-$(rpm -E %fedora).repo -O /etc/yum.repos.d/_copr_ublue-os-vanilla-first-setup.repo
 
 COPY etc /etc
 
 COPY ublue-firstboot /usr/bin
 
 RUN rpm-ostree override remove firefox firefox-langpacks && \
-    rpm-ostree install distrobox gnome-tweaks just vte291-gtk4-devel && \
+    rpm-ostree install distrobox gnome-tweaks just vte291-gtk4-devel vanilla-first-setup && \
     sed -i 's/#AutomaticUpdatePolicy.*/AutomaticUpdatePolicy=stage/' /etc/rpm-ostreed.conf && \
     systemctl enable rpm-ostreed-automatic.timer && \
     systemctl enable flatpak-automatic.timer && \
-    ostree container commit
+    rm -f /etc/yum.repos.d/_copr_ublue-os-vanilla-first-setup.repo && \
+    ostree container commit