tests: exec_host() now gets the node name

The exec_host() simply fails on cluster with multi-nodes because
`kubectl get node -o name" will return a list o names. Moreover, it will
return control nodes names which usually don't have kata installed.

Fixes #7619
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
(cherry picked from commit 3a00fc9)

tests/integration/kubernetes/tests_common.sh

@@ -47,10 +47,14 @@ get_one_kata_node() {
 }
 
 # Runs a command in the host filesystem.
+#
+# Parameters:
+#	$1 - the node name
+#
 exec_host() {
-	node="$(kubectl get node -o name)"
+	node="$1"
 	# `kubectl debug` always returns 0, so we hack it to return the right exit code.
-	command="$@"
+	command="${@:2}"
 	command+='; echo -en \\n$?'
 	# We're trailing the `\r` here due to: https://github.com/kata-containers/kata-containers/issues/8051
 	# tl;dr: When testing with CRI-O we're facing the foillowing error:
@@ -61,7 +65,7 @@ exec_host() {
 	# [bats-exec-test:38] INFO: k8s configured to use runtimeclass
 	# bash: line 1: $'\r': command not found
 	# ```
-	output="$(kubectl debug -qit "${node}" --image=alpine:latest -- chroot /host bash -c "${command}" | tr -d '\r')"
+	output="$(kubectl debug -qit "node/${node}" --image=alpine:latest -- chroot /host bash -c "${command}" | tr -d '\r')"
 	kubectl get pods -o name | grep node-debugger | xargs kubectl delete > /dev/null
 	exit_code="$(echo "${output}" | tail -1)"
 	echo "$(echo "${output}" | head -n -1)"