sriov provider, run etcd in memory

Currently we encounter bad performance of etcd on
sriov provider cluster on DinD setup.
We get 'etcdserver: timeout errors' that causes jobs to
fail often.

In such cases it is recommanded [1] to use in-memory etcd
Running etcd in memory should improve performance and
will make sriov provider more stabilized.

[1] kubernetes-sigs/kind#1922

Signed-off-by: Or Mergi <[email protected]>

cluster-up/cluster/kind-k8s-sriov-1.17.0/provider.sh

@@ -5,6 +5,8 @@ set -e
 export CLUSTER_NAME="sriov"
 export KIND_NODE_IMAGE="kindest/node:v1.17.0"
 
+export ETCD_DATA_MOUNT="/mnt/kind-cluster-etcd"
+
 source ${KUBEVIRTCI_PATH}/cluster/kind/common.sh
 
 function up() {