Basing the container on the official flatpak builder container to avoid duse issues. for real

Dockerfile

@@ -1,15 +1,33 @@
-# Based on: https://github.com/flatpak/flatpak-docker-images/blob/master/Dockerfile
+# Based on: https://github.com/ebassi/flathub-docker/blob/master/base/Dockerfile
 
-FROM fedora:41
+FROM debian:stretch-slim
-VOLUME /build
-WORKDIR /build
-ENV FLATPAK_GL_DRIVERS=dummy
-RUN dnf -y update && \
-    dnf install -y flatpak-builder ostree fuse elfutils dconf git bzr p7zip xmlstarlet bzip2 curl jq && \
-    dnf clean all
 
-RUN flatpak remote-add flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+RUN echo "deb-src http://httpredir.debian.org/debian stretch main" >> /etc/apt/sources.list
-RUN flatpak remote-add flathub-beta https://flathub.org/beta-repo/flathub-beta.flatpakrepo
+
+RUN apt-get update -qq && \
+    apt-get install -qq -y --no-install-recommends \
+        flatpak \
+        git-core \
+        locales \
+        make && \
+        p7zip \
+        xmlstarlet \
+        bzip2 \
+        curl \
+        jq \
+    rm -rf /usr/share/doc/* /usr/share/man/*
+
+RUN locale-gen C.UTF-8 && /usr/sbin/update-locale LANG=C.UTF-8
+
+ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8
+
+COPY flatpak-build.sh /root
+RUN chmod +x /root/flatpak-build.sh
+
+RUN /root/flatpak-build.sh
+
+RUN flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+RUN flatpak remote-add --if-not-exists flathub-beta https://flathub.org/beta-repo/flathub-beta.flatpakrepo
+RUN flatpak remote-add --if-not-exists gnome https://sdk.gnome.org/gnome.flatpakrepo
 
-# Set default command (optional, for testing purposes)
 ENTRYPOINT [ "flatpak-builder" ]

flatpak-build.sh

@@ -0,0 +1,86 @@
+#!/bin/bash
+
+apt-get build-dep -qq -y --no-install-recommends \
+        ostree \
+        flatpak
+
+git clone --recursive https://github.com/ostreedev/ostree /root/ostree && \
+        cd /root/ostree && \
+        ./autogen.sh \
+                --prefix /usr \
+                --sysconfdir /etc \
+                --libdir /usr/lib/x86_64-linux-gnu \
+                --libexecdir /usr/bin \
+                --localstatedir /var \
+                --disable-silent-rules \
+                --disable-gtk-doc \
+                --disable-man \
+                --with-dracut \
+                --with-grub2 \
+                --with-grub2-mkconfig-path=/usr/sbin/grub-mkconfig \
+                --with-systemdsystemunitdir=/lib/systemd/system && \
+        make && make install && \
+        rm -f /usr/lib/*/*.la && \
+        cd /root && \
+        rm -rf /root/ostree
+
+git clone --recursive https://github.com/flatpak/flatpak /root/flatpak && \
+        cd /root/flatpak && \
+        ./autogen.sh \
+                --prefix /usr \
+                --sysconfdir /etc \
+                --libdir /usr/lib/x86_64-linux-gnu \
+                --libexecdir /usr/bin \
+                --localstatedir /var \
+                --disable-silent-rules \
+                --disable-docbook-docs \
+                --disable-gtk-doc \
+                --disable-installed-tests \
+                --disable-documentation \
+                --with-priv-mode=none \
+                --with-privileged-group=sudo \
+                --with-systemdsystemunitdir=/lib/systemd/system && \
+        make && make install && \
+        rm -f /usr/lib/*/*.la && \
+        cd /root && \
+        rm -rf /root/flatpak
+
+apt-get remove -y --purge \
+        adwaita-icon-theme \
+        autotools-dev \
+        bison \
+        build-essential \
+        debhelper \
+        docbook \
+        docbook-to-man \
+        docbook-xml \
+        docbook-xsl \
+        fontconfig \
+        hicolor-icon-theme \
+        highlight \
+        highlight-common \
+        intltool-debian \
+        libcairo-gobject2 \
+        libcairo2 \
+        libepoxy0 \
+        libfontconfig1 \
+        libharfbuzz0b \
+        libgtk-3-0 \
+        libicu-dev \
+        man-db \
+        python \
+        python2.7 \
+        python2.7-minimal \
+        python3 \
+        python3.5 \
+        python3.5-minimal \
+        sgml-base \
+        sgml-data \
+        xml-core \
+        xmlto \
+        xorg-sgml-doctools \
+        xsltproc
+
+apt autoremove -y
+
+rm -rf /usr/share/doc/* /usr/share/man/*