Fix podman version

Since ansible "package" takes the version in the name directly, let's
ensure we have the "latest" of that version.

This allows to still use per-OS or per-release podman version in a
convenient and easy way.

Note: this one differs a bit from the original change, since rhel-7
based systems don't provide podman 1.6.4, but an older version.
This patch therefore adds a new redhat-7.yml file with the relevant
information.

Depends-On: https://review.opendev.org/746639
Change-Id: I9d8ba2818c7b00893473360b8098ae5cdecbb256
(cherry picked from commit 845fafd601)
(cherry picked from commit ad0749ff11)

tripleo_ansible/roles/tripleo-podman/vars/centos-7.yml

@@ -0,0 +1,23 @@
+---
+# Copyright 2019 Red Hat, Inc.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+
+_tripleo_podman_packages:
+  - podman
+
+_tripleo_podman_purge_packages:
+  - docker
+  - docker-ce

tripleo_ansible/roles/tripleo-podman/vars/redhat-7.yml

@@ -0,0 +1,23 @@
+---
+# Copyright 2019 Red Hat, Inc.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+
+_tripleo_podman_packages:
+  - podman
+
+_tripleo_podman_purge_packages:
+  - docker
+  - docker-ce

tripleo_ansible/roles/tripleo-podman/vars/redhat.yml

@@ -16,7 +16,7 @@
 
 
 _tripleo_podman_packages:
-  - podman
+  - podman-1.6.4
 
 _tripleo_buildah_packages:
   - buildah-1.11.6