Adds NFS CSI plugin integration test

The Helm chart depends on a few other CSI components. We have rocks for
these, and we'll be using them in the helm chart as well.

tests/integration/conftest.py

@@ -0,0 +1,5 @@
+#
+# Copyright 2024 Canonical, Ltd.
+#
+
+pytest_plugins = ["k8s_test_harness.plugin"]

tests/integration/test_csi_driver_nfs.py

@@ -2,7 +2,43 @@
 # Copyright 2024 Canonical, Ltd.
 #
 
+import logging
 
-def test_csi_driver_nfs_integration():
-    """Test NFS CSI driver rock."""
-    pass
+from k8s_test_harness import harness
+from k8s_test_harness.util import env_util, k8s_util
+
+LOG = logging.getLogger(__name__)
+
+CSI_PROVISIONER_IMG = "ghcr.io/canonical/csi-provisioner:4.0.0-ck0"
+LIVENESSPROBE_IMG = "ghcr.io/canonical/livenessprobe:2.12.0-ck0"
+NODE_DRIVER_REGISTRAR_IMG = "ghcr.io/canonical/csi-node-driver-registrar:2.10.0-ck0"
+SNAPSHOT_CONTROLLER_IMG = "ghcr.io/canonical/snapshot-controller:6.3.3-ck0"
+SNAPSHOTTER_IMG = "ghcr.io/canonical/csi-snapshotter:6.3.3-ck0"
+
+
+def _get_nfsplugin_csi_helm_cmd(version: str):
+    rock = env_util.get_build_meta_info_for_rock_version("nfsplugin", version, "amd64")
+
+    images = [
+        k8s_util.HelmImage(rock.image, subitem="nfs"),
+        k8s_util.HelmImage(CSI_PROVISIONER_IMG, subitem="csiProvisioner"),
+        k8s_util.HelmImage(LIVENESSPROBE_IMG, subitem="livenessProbe"),
+        k8s_util.HelmImage(NODE_DRIVER_REGISTRAR_IMG, subitem="nodeDriverRegistrar"),
+        k8s_util.HelmImage(SNAPSHOT_CONTROLLER_IMG, subitem="externalSnapshotter"),
+        k8s_util.HelmImage(SNAPSHOTTER_IMG, subitem="csiSnapshotter"),
+    ]
+
+    return k8s_util.get_helm_install_command(
+        "csi-driver-nfs",
+        "csi-driver-nfs",
+        repository="https://raw.githubusercontent.com/kubernetes-csi/csi-driver-nfs/master/charts",
+        chart_version="v4.7.0",
+        images=images,
+    )
+
+
+def test_nfsplugin_integration(function_instance: harness.Instance):
+    function_instance.exec(_get_nfsplugin_csi_helm_cmd("4.7.0"))
+
+    k8s_util.wait_for_daemonset(function_instance, "csi-nfs-node", "kube-system")
+    k8s_util.wait_for_deployment(function_instance, "csi-nfs-controller", "kube-system")