fix: segmentation fault when using podman (kubevirt#1368)

The ephemeral-provider-common.sh script reveals several issues
related to Podman, particularly when dumping file content to
stdout. The CLI scp command is affected; however, by replacing the
string "- >" with the destination folder itself, the command
functions correctly.

Additionally, it's important to note that the destination folder
differs between Podman and Docker due to changes made in
ephemeral_provider_common.sh on line 57.

As an alternative, we could consider making this workaround more
generic by eliminating the use of "- >" altogether.

Signed-off-by: Nestor Acuna Blanco <[email protected]>

Author: nestoracunablanco

cluster-up/cluster/k8s-provider-common.sh

@@ -47,14 +47,20 @@ function up() {
     fi
     eval ${_cli:?} run $params
 
-    ${_cli} scp --prefix $provider_prefix /etc/kubernetes/admin.conf - >${KUBEVIRTCI_CONFIG_PATH}/$KUBEVIRT_PROVIDER/.kubeconfig
+    # Workaround https://github.com/containers/conmon/issues/315 by not dumping file content to stdout
+    scp_suffix="- >${KUBEVIRTCI_CONFIG_PATH}/$KUBEVIRT_PROVIDER"
+    if [[ ${_cri_bin} = podman* ]]; then
+        scp_suffix="/kubevirtci_config"
+    fi
+
+    ${_cli} scp --prefix $provider_prefix /etc/kubernetes/admin.conf ${scp_suffix}/.kubeconfig
 
     # Set server and disable tls check
     export KUBECONFIG=${KUBEVIRTCI_CONFIG_PATH}/$KUBEVIRT_PROVIDER/.kubeconfig
     kubectl config set-cluster kubernetes --server="https://$(_main_ip):$(_port k8s)"
     kubectl config set-cluster kubernetes --insecure-skip-tls-verify=true
 
-    ${_cli} scp --prefix ${provider_prefix:?} /usr/bin/kubectl - >${KUBEVIRTCI_CONFIG_PATH}/$KUBEVIRT_PROVIDER/.kubectl
+    ${_cli} scp --prefix ${provider_prefix:?} /usr/bin/kubectl ${scp_suffix}/.kubectl
 
     chmod u+x ${KUBEVIRTCI_CONFIG_PATH}/$KUBEVIRT_PROVIDER/.kubectl