Use test build of GCC for prototyping OSH features

... from https://copr.fedorainfracloud.org/coprs/dmalcolm/gcc-latest/

Signed-off-by: Siteshwar Vashisht <[email protected]>

containers/vm-provisioning/ansible/roles/osh-worker-role/files/site-defaults.cfg

@@ -0,0 +1,23 @@
+# mock site configuration
+# -----------------------
+#
+# Any configuration here has global effect - affects all mock users on this host
+# and all the mock chroot configurations.  User specific configuration can be
+# installed to "$HOME/.config/mock.cfg".
+#
+# Config options are documented in /usr/share/doc/mock/site-defaults.cfg file.
+#
+# Entries in this file follow the same format as other mock config files:
+# config_opts['foo'] = 'bar'
+config_opts["yum.conf"] = """
+[copr:copr.fedorainfracloud.org:dmalcolm:gcc-latest]
+name=Copr repo for gcc-latest owned by dmalcolm
+baseurl=https://download.copr.fedorainfracloud.org/results/dmalcolm/gcc-latest/fedora-$releasever-$basearch/
+type=rpm-md
+skip_if_unavailable=True
+gpgcheck=1
+gpgkey=https://download.copr.fedorainfracloud.org/results/dmalcolm/gcc-latest/pubkey.gpg
+repo_gpgcheck=0
+enabled=1
+enabled_metadata=1
+"""

containers/vm-provisioning/ansible/roles/osh-worker-role/tasks/main.yml

@@ -74,6 +74,16 @@
     name: csmock-plugin-clippy
     state: latest
 
+# Workaround for https://lists.fedoraproject.org/archives/list/[email protected]/thread/GY2XQBNNDHR5VHGA24MBAUBKNAJPUDZW/
+# TODO: Remove when latest gcc is released
+- name: Copy /etc/mock/site-defaults.cfg
+  ansible.builtin.copy:
+    src: site-defaults.cfg
+    dest: /etc/mock/site-defaults.cfg
+    owner: root
+    group: mock
+    mode: 0644
+
 - name: Print status of the worker
   ansible.builtin.debug:
     msg: Worker virtual machine is set up, but `osh-worker` is not started. It should be started by `osh-worker-manager` from osh-hub.