[CI:COPR] podman.spec.rpkg: add python3 dependency for el8

EL8 builds are failing because hack/markdown-preprocess needs python3
which AFAICT isn't included by default in EL8 build environments.

This commit also includes an additional `[CI:COPR]` mode which is
currently runs the same tests as `[CI:DOCS]` but could differ in future.

Signed-off-by: Lokesh Mandvekar <lsm5@fedoraproject.org>

.cirrus.yml

@@ -240,6 +240,7 @@ bindings_task:
     only_if: >-
         $CIRRUS_PR != '' &&
         $CIRRUS_CHANGE_TITLE !=~ '.*CI:DOCS.*' &&
+        $CIRRUS_CHANGE_TITLE !=~ '.*CI:COPR.*' &&
         $CIRRUS_CHANGE_TITLE !=~ '.*CI:BUILD.*'
     depends_on:
         - build
@@ -393,6 +394,7 @@ docker-py_test_task:
     only_if: &not_tag_branch_build_docs >-
         $CIRRUS_PR != '' &&
         $CIRRUS_CHANGE_TITLE !=~ '.*CI:DOCS.*' &&
+        $CIRRUS_CHANGE_TITLE !=~ '.*CI:COPR.*' &&
         $CIRRUS_CHANGE_TITLE !=~ '.*CI:BUILD.*'
 
     depends_on:
@@ -627,6 +629,7 @@ local_system_test_task: &local_system_test_task
     only_if: &not_tag_build_docs_multiarch >-
         $CIRRUS_TAG == '' &&
         $CIRRUS_CHANGE_TITLE !=~ '.*CI:DOCS.*' &&
+        $CIRRUS_CHANGE_TITLE !=~ '.*CI:COPR.*' &&
         $CIRRUS_CHANGE_TITLE !=~ '.*CI:BUILD.*' &&
         $CIRRUS_CRON != 'multiarch'
     depends_on:
@@ -906,6 +909,7 @@ artifacts_task:
     # Docs: ./contrib/cirrus/CIModes.md
     only_if: >-
         $CIRRUS_CHANGE_TITLE !=~ '.*CI:DOCS.*' &&
+        $CIRRUS_CHANGE_TITLE !=~ '.*CI:COPR.*' &&
         $CIRRUS_CRON != 'multiarch'
     depends_on:
         - success

contrib/cirrus/CIModes.md

@@ -85,6 +85,16 @@ of this document, it's not possible to override the behavior of `$CIRRUS_PR`.
 + meta
 + success
 
+### Intended `[CI:COPR]` PR Tasks:
++ ext_svc_check
++ automation
++ *build*
++ validate
++ swagger
++ consistency
++ meta
++ success
+
 ### Intend `[CI:BUILD]` PR Tasks:
 + ext_svc_check
 + automation

podman.spec.rpkg

@@ -59,6 +59,7 @@ BuildRequires: go-rpm-macros
 %endif
 %if 0%{?rhel} <= 8
 BuildRequires: pkgconfig(devmapper)
+BuildRequires: python3
 %endif
 BuildRequires: gpgme-devel
 BuildRequires: libassuan-devel