ci: add support for VM_DRIVER=podman to script/minikube.sh

When running on AWE EC2 virtual-machines, we'll use Podman instead of
installing a VM. The "none" driver might work as well, but it requires
additional dependencies to be installed, which may change over time with
new minikube or Kubernetes releases. Hopefully the Podman driver is less
affected with changes in dependencies.

Depends-on: #3419
Closes: #3415
Signed-off-by: Niels de Vos <ndevos@redhat.com>

scripts/minikube.sh

@@ -22,7 +22,7 @@ function copy_image_to_cluster() {
     if [ -z "$(${CONTAINER_CMD} images -q "${build_image}")" ]; then
         ${CONTAINER_CMD} pull "${build_image}"
     fi
-    if [[ "${VM_DRIVER}" == "none" ]]; then
+    if [[ "${VM_DRIVER}" == "none" ]] || [[ "${VM_DRIVER}" == "podman" ]]; then
         ${CONTAINER_CMD} tag "${build_image}" "${final_image}"
         return
     fi
@@ -185,7 +185,7 @@ K8S_FEATURE_GATES=${K8S_FEATURE_GATES:-""}
 # kubelet.resolv-conf needs to point to a file, not a symlink
 # the default minikube VM has /etc/resolv.conf -> /run/systemd/resolve/resolv.conf
 RESOLV_CONF='/run/systemd/resolve/resolv.conf'
-if [[ "${VM_DRIVER}" == "none" ]] && [[ ! -e "${RESOLV_CONF}" ]]; then
+if ( [[ "${VM_DRIVER}" == "none" ]] || [[ "${VM_DRIVER}" == "podman" ]] ) && [[ ! -e "${RESOLV_CONF}" ]]; then
 	# in case /run/systemd/resolve/resolv.conf does not exist, use the
 	# standard /etc/resolv.conf (with symlink resolved)
 	RESOLV_CONF="$(readlink -f /etc/resolv.conf)"
@@ -234,7 +234,7 @@ up)
 
     # create a link so the default dataDirHostPath will work for this
     # environment
-    if [[ "${VM_DRIVER}" != "none" ]]; then
+    if [[ "${VM_DRIVER}" != "none" ]] && [[ "${VM_DRIVER}" != "podman" ]]; then
         wait_for_ssh
         # shellcheck disable=SC2086
         ${minikube} ssh "sudo mkdir -p /mnt/${DISK}/var/lib/rook;sudo ln -s /mnt/${DISK}/var/lib/rook /var/lib/rook"