def pv_cleanup(pv_name):
try:
KubeUtils.delete_pv(pv_name)
except ApiException:
pass
def test_mixed_access_modes(self):
# This test creates a PV with reclaimPolicy: Retain (making sure it is not deleted when the bounded PVC is deleted)
# Then will create PVC's with different AccessModes to use the same PV. in between some PV clean needs to be done.
# Create Storage Class with reclaimPolicy: Retain
sc_name = 'sc-nvmesh-retain'
KubeUtils.create_storage_class(sc_name, {'vpg': 'DEFAULT_RAID_10_VPG'},
reclaimPolicy='Retain')
self.addCleanup(lambda: KubeUtils.delete_storage_class(sc_name))
# Create NVMesh Volume
nvmesh_volume_name = "vol1"
volume = Volume(
name=nvmesh_volume_name,
RAIDLevel=RAIDLevels.STRIPED_AND_MIRRORED_RAID_10,
VPG='DEFAULT_RAID_10_VPG',
capacity=5 * GiB,
description="Volume for CSI Driver Static Provisioning")
err, out = NVMeshUtils.getVolumeAPI().save([volume])
self.assertIsNone(err, 'Error Creating NVMesh Volume. %s' % err)
create_res = out[0]
self.assertTrue(
create_res['success'],
'Error Creating NVMesh Volume. %s' % create_res['error'])
self.addCleanup(lambda: NVMeshUtils.getVolumeAPI().delete([volume]))
# Create PV
pv_name = 'csi-testing-pv-vol1'
volume_size = '5Gi'
self.create_pv_for_static_prov(nvmesh_volume_name, pv_name, sc_name,
volume_size)
# Create PVC with accessMode ReadWriteOnce
pvc_name = 'pvc-rwo'
KubeUtils.create_pvc_and_wait_to_bound(self,
pvc_name,
sc_name,
access_modes=['ReadWriteOnce'],
storage=volume_size,
volumeMode='Filesystem')
self.addCleanup(lambda: KubeUtils.delete_pvc(pvc_name))
# Create Pod to create a file on the File System
pod_name = 'pod-file-writer'
cmd = 'echo hello > /vol/file1'
pod = KubeUtils.get_shell_pod_template(pod_name, pvc_name, cmd)
KubeUtils.create_pod(pod)
self.addCleanup(lambda: KubeUtils.delete_pod_and_wait(pod_name))
KubeUtils.wait_for_pod_to_complete(pod_name)
KubeUtils.delete_pod_and_wait(pod_name)
# Delete the PVC
KubeUtils.delete_pvc(pvc_name)
KubeUtils.wait_for_pv_to_be_released(pv_name)
# Make PV Available for the next PVC (by removing claimRef field from the PV ==OR== deleting and recreating the PV)
KubeUtils.delete_pv(pv_name)
KubeUtils.wait_for_pv_to_delete(pv_name)
self.create_pv_for_static_prov(nvmesh_volume_name, pv_name, sc_name,
volume_size)
# Create PVC With ReadOnlyMany
pvc_name = 'pvc-rox'
KubeUtils.create_pvc_and_wait_to_bound(self,
pvc_name,
sc_name,
access_modes=['ReadOnlyMany'],
storage=volume_size,
volumeMode='Filesystem')
self.addCleanup(lambda: KubeUtils.delete_pvc(pvc_name))
# 7. Create 2 Pods that will read the File System - Should Succeed
pod1_name = 'pod-file-reader1'
cmd = 'cat /vol/file1'
pod = KubeUtils.get_shell_pod_template(pod1_name, pvc_name, cmd)
KubeUtils.create_pod(pod)
self.addCleanup(lambda: KubeUtils.delete_pod_and_wait(pod1_name))
pod2_name = 'pod-file-reader2'
pod = KubeUtils.get_shell_pod_template(pod2_name, pvc_name, cmd)
KubeUtils.create_pod(pod)
self.addCleanup(lambda: KubeUtils.delete_pod_and_wait(pod2_name))
KubeUtils.wait_for_pod_to_complete(pod2_name)
# 8. Create 1 Pod that will try to write to the FileSystem - Should Fail
pod_name = 'pod-file-writer'
cmd = 'echo hello > /vol/file1'
pod = KubeUtils.get_shell_pod_template(pod_name, pvc_name, cmd)
KubeUtils.create_pod(pod)
self.addCleanup(lambda: KubeUtils.delete_pod_and_wait(pod_name))
KubeUtils.wait_for_pod_to_fail(pod_name)