ci: define a CI manifest file

This is to be used with the command "lcitool manifest ci/manifest.yml"
to re-generate all existing dockerfiles and gitlab CI config.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

ci/manifest.yml

@@ -0,0 +1,68 @@
+projects:
+  - virt-viewer
+  - libvirt+dist
+  - libvirt-glib+dist
+  - gtk-vnc+dist
+
+gitlab:
+  namespace: virt-viewer
+  project: virt-viewer
+
+targets:
+  centos-8:
+    projects:
+      - virt-viewer
+      - libvirt
+      - libvirt-glib
+      - gtk-vnc
+
+    jobs:
+      - arch: x86_64
+        variables:
+          RPM: skip
+
+  centos-stream-8:
+    jobs:
+      - arch: x86_64
+        variables:
+          RPM: skip
+
+  debian-10: x86_64
+
+  debian-sid: x86_64
+
+  fedora-33: x86_64
+
+  fedora-34: x86_64
+
+  fedora-rawhide:
+    jobs:
+      - arch: x86_64
+
+      - arch: mingw32
+        artifacts:
+          expiry: 30 days
+          paths:
+            - data/virt-viewer-x86*.msi
+
+      - arch: mingw64
+        artifacts:
+          expiry: 30 days
+          paths:
+            - data/virt-viewer-x64*.msi
+
+  opensuse-leap-152:
+    jobs:
+      - arch: x86_64
+        variables:
+          RPM: skip
+
+  opensuse-tumbleweed:
+    jobs:
+      - arch: x86_64
+        variables:
+          RPM: skip
+
+  ubuntu-1804: x86_64
+
+  ubuntu-2004: x86_64