tests: Move the list of packages out of Dockerfile.test into a file

This allows other test methods to use the same list of packages without
duplicating it.

Dockerfile.test

@@ -1,43 +1,6 @@
 FROM registry.fedoraproject.org/fedora:rawhide
-RUN  dnf -y install \
+COPY test-packages .
-  anaconda-tui \
+RUN dnf -y install $(cat test-packages) && touch /.in-container
-  git \
-  libgit2-glib \
-  libselinux-python3 \
-  make \
-  pykickstart \
-  python3-ansible-runner \
-  python3-coverage \
-  python3-coveralls \
-  python3-flask \
-  python3-gevent \
-  python3-magic \
-  python3-mako \
-  python3-pocketlint \
-  python3-pycdlib \
-  python3-pylint \
-  python3-pyparted \
-  python3-pytest \
-  python3-pytest-cov \
-  python3-toml \
-  python3-semantic_version \
-  python3-sphinx \
-  python3-sphinx-argparse \
-  python3-sphinx_rtd_theme \
-  python3-rpmfluff \
-  python3-librepo \
-  python3-pyvmomi \
-  beakerlib \
-  sudo \
-  rsync \
-  e2fsprogs \
-  xz-lzma-compat \
-  pbzip2 \
-  squashfs-tools \
-  qemu-img \
-  yamllint \
-  which && \
-  touch /.in-container
 RUN useradd weldr
 VOLUME /lorax-ro
 VOLUME /test-results

test-packages

@@ -0,0 +1,37 @@
+anaconda-tui
+beakerlib
+e2fsprogs
+git
+libgit2-glib
+libselinux-python3
+make
+pbzip2
+pykickstart
+python3-ansible-runner
+python3-coverage
+python3-coveralls
+python3-flask
+python3-gevent
+python3-librepo
+python3-magic
+python3-mako
+python3-pocketlint
+python3-pycdlib
+python3-pylint
+python3-pyparted
+python3-pytest
+python3-pytest-cov
+python3-pyvmomi
+python3-rpmfluff
+python3-semantic_version
+python3-sphinx
+python3-sphinx-argparse
+python3-sphinx_rtd_theme
+python3-toml
+qemu-img
+rsync
+squashfs-tools
+sudo
+which
+xz-lzma-compat
+yamllint