ci: Add a new integration job template for the upstream QEMU scenario

YAML anchors don't work with Shell condition structures, so we cannot
simply reference the QEMU build template YAML anchor conditionally and
hence have everything as part of a single job template.
Instead, we have to "subclass" the .integration_tests template and
inject the QEMU building bits explicitly.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

ci/integration-template.yml

@@ -87,3 +87,14 @@
     - if: '$LIBVIRT_CI_INTEGRATION'
       when: on_success
     - when: never
+
+
+# YAML anchors don't work with Shell conditions so we can't use a variable
+# to conditionally build+install QEMU from source.
+# Instead, create a new test job template for this scenario.
+.integration_tests_upstream_qemu:
+  extends: .integration_tests
+  before_script:
+    - !reference [.integration_tests, before_script]
+    - cd "$SCRATCH_DIR"
+    - *qemu-build-template