Use docker on IBM which is needed for building the collector image

ansible/group_vars/platform_rhcos.yml

@@ -1,8 +1,2 @@
 ---
 ansible_user: core
-
-runtime_command: podman
-runtime_as_root: true
-runtime_socket: /run/podman/podman.sock
-
-needs_selinux_permissive: true

ansible/roles/create-vm/tasks/create-ppc64le-vm.yml

@@ -143,7 +143,7 @@
       - job_id_{{ job_id }}
       - platform_{{ test_platform }}
       - vm_arch_ppc64le
-      - container_engine_podman
+      - container_engine_docker
     ansible_ssh_extra_args: -o StrictHostKeyChecking=no
     ansible_ssh_private_key_file: "{{ vm_ssh_key_file }}"
     vm_config: "{{ vm_config }}"

ansible/roles/create-vm/tasks/create-s390x-vm.yml

@@ -58,7 +58,7 @@
       - job_id_{{ job_id }}
       - platform_{{ test_platform }}
       - vm_arch_s390x
-      - container_engine_podman
+      - container_engine_docker
     ansible_ssh_extra_args: "-o StrictHostKeyChecking=no"
     ansible_ssh_private_key_file: "{{ vm_ssh_key_file }}"
     vm_config: "{{ vm_config }}"

ansible/roles/provision-vm/tasks/redhat.yml

@@ -25,6 +25,28 @@
   until: registration is not failed
   when: vm_arch == "ppc64le" or vm_arch == "s390x"
 
+- name: Install needed utilities
+  ansible.builtin.dnf:
+    name:
+      - git
+      - make
+
+- name: Add docker repos
+  ansible.builtin.shell: |
+    dnf config-manager --add-repo https://download.docker.com/linux/rhel/docker-ce.repo
+  when: runtime_command == 'docker'
+
+- name: Install docker
+  ansible.builtin.dnf:
+    name:
+    - docker-ce
+    - docker-ce-cli
+    - containerd.io
+    - docker-buildx-plugin
+    - docker-compose-plugin
+    state: present
+  when: runtime_command == 'docker'
+
 - name: Install podman
   ansible.builtin.dnf:
     name:
@@ -34,4 +56,5 @@
       - make
     state: latest
     update_cache: true
+  when: runtime_command == 'podman'