Merge pull request #5357 from liubin/fix/5356-add-test-for-share-file

tests: add hostPath volume test for sharing files

Author: lifupan

integration/kubernetes/k8s-file-volume.bats

@@ -0,0 +1,46 @@
+#!/usr/bin/env bats
+#
+# Copyright (c) 2022 Ant Group
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+load "${BATS_TEST_DIRNAME}/../../.ci/lib.sh"
+load "${BATS_TEST_DIRNAME}/tests_common.sh"
+
+setup() {
+	[ "${KATA_HYPERVISOR}" == "firecracker" ] && skip "test not working see: ${fc_limitations}"
+	pod_name="test-file-volume"
+	container_name="busybox-file-volume-container"
+	tmp_file=$(mktemp /tmp/file-volume-test-foo.XXXXX)
+	mount_path="/tmp/foo.txt"
+	file_body="test"
+	get_pod_config_dir
+}
+
+@test "Test readonly volume for pods" {
+	[ "${KATA_HYPERVISOR}" == "firecracker" ] && skip "test not working see: ${fc_limitations}"
+	# Write test body to temp file
+	echo "$file_body" > $tmp_file
+
+	# Create test yaml
+	sed -e "s|HOST_FILE|$tmp_file|" ${pod_config_dir}/pod-file-volume.yaml > ${pod_config_dir}/test-pod-file-volume.yaml
+	sed -i "s|MOUNT_PATH|$mount_path|" ${pod_config_dir}/test-pod-file-volume.yaml
+
+	# Create pod
+	kubectl create -f "${pod_config_dir}/test-pod-file-volume.yaml"
+
+	# Check pod creation
+	kubectl wait --for=condition=Ready --timeout=$timeout pod "$pod_name"
+
+	# Validate file volume body inside the pod
+	file_in_container=$(kubectl exec $pod_name -- cat $mount_path)
+	[ "$file_body" == "$file_in_container" ]
+}
+
+teardown() {
+	[ "${KATA_HYPERVISOR}" == "firecracker" ] && skip "test not working see: ${fc_limitations}"
+	rm -f $tmp_file
+	rm -f ${pod_config_dir}/test-pod-file-volume.yaml.yaml
+	kubectl delete pod "$pod_name"
+}

integration/kubernetes/run_kubernetes_tests.sh

@@ -32,6 +32,7 @@ else
 	"k8s-env.bats" \
 	"k8s-exec.bats" \
 	"k8s-expose-ip.bats" \
+	"k8s-file-volume.bats" \
 	"k8s-inotify.bats" \
 	"k8s-job.bats" \
 	"k8s-kill-all-process-in-container.bats" \
@@ -72,6 +73,7 @@ else
                 "k8s-env.bats" \
                 "k8s-exec.bats" \
                 "k8s-expose-ip.bats" \
+		"k8s-file-volume.bats" \
                 "k8s-inotify.bats" \
                 "k8s-job.bats" \
                 "k8s-limit-range.bats" \

integration/kubernetes/runtimeclass_workloads/pod-file-volume.yaml

@@ -0,0 +1,26 @@
+#
+# Copyright (c) 2022 Ant Group
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+apiVersion: v1
+kind: Pod
+metadata:
+  name: test-file-volume
+spec:
+  terminationGracePeriodSeconds: 0
+  runtimeClassName: kata
+  restartPolicy: Never
+  volumes:
+  - name: shared-file
+    hostPath:
+      path: HOST_FILE
+      type: File
+  containers:
+  - name: busybox-file-volume-container
+    image: busybox
+    volumeMounts:
+    - name: shared-file
+      mountPath: MOUNT_PATH
+    command: ["/bin/sh"]
+    args: ["-c", "tail -f /dev/null"]