mirror of
https://github.com/ceph/ceph-csi.git
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4bcc934873
pylint started to report errors like the following:
troubleshooting/tools/tracevol.py:97:10: R1732: Consider using 'with' for resource-allocating operations (consider-using-with)
There probably has been an update of Pylint in the test-container that
is more strict than previous versions.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
(cherry picked from commit 8447a1feab)
574 lines
20 KiB
Python
Executable File
574 lines
20 KiB
Python
Executable File
#!/usr/bin/python
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"""
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Copyright 2019 The Ceph-CSI Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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#pylint: disable=line-too-long
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python tool to trace backend image name from pvc
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Note: For the script to work properly python>=3.x is required
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sample input:
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python -c oc -k /home/.kube/config -n default -rn rook-ceph -id admin -key
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adminkey -cm ceph-csi-config
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Sample output:
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+------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| RBD |
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+----------+------------------------------------------+----------------------------------------------+-----------------+--------------+------------------+
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| PVC Name | PV Name | Image
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Name | PV name in omap | Image ID in omap | Image in cluster |
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+----------+------------------------------------------+----------------------------------------------+-----------------+--------------+------------------+
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| rbd-pvc | pvc-f1a501dd-03f6-45c9-89f4-85eed7a13ef2 | csi-vol-1b00f5f8-b1c1-11e9-8421-9243c1f659f0 | True | True | False |
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| rbd-pvcq | pvc-09a8bceb-0f60-4036-85b9-dc89912ae372 | csi-vol-b781b9b1-b1c5-11e9-8421-9243c1f659f0 | True | True | True |
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+----------+------------------------------------------+----------------------------------------------+-----------------+--------------+------------------+
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+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| CephFS |
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+----------------+------------------------------------------+----------------------------------------------+-----------------+----------------------+----------------------+
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| PVC Name | PV Name | Subvolume Name | PV name in omap | Subvolume ID in omap | Subvolume in cluster |
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+----------------+------------------------------------------+----------------------------------------------+-----------------+----------------------+----------------------+
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| csi-cephfs-pvc | pvc-b3492186-73c0-4a4e-a810-0d0fa0daf709 | csi-vol-6f283b82-a09d-11ea-81a7-0242ac11000f | True | True | True |
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+----------------+------------------------------------------+----------------------------------------------+-----------------+----------------------+----------------------+
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"""
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import argparse
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import subprocess
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import json
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import sys
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import re
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import prettytable
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PARSER = argparse.ArgumentParser()
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# -p pvc-test -k /home/.kube/config -n default -rn rook-ceph
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PARSER.add_argument("-p", "--pvcname", default="", help="PVC name")
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PARSER.add_argument("-c", "--command", default="oc",
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help="kubectl or oc command")
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PARSER.add_argument("-k", "--kubeconfig", default="",
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help="kubernetes configuration")
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PARSER.add_argument("-n", "--namespace", default="default",
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help="namespace in which pvc created")
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PARSER.add_argument("-t", "--toolboxdeployed", type=bool, default=True,
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help="is rook toolbox deployed")
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PARSER.add_argument("-d", "--debug", type=bool, default=False,
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help="log commands output")
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PARSER.add_argument("-rn", "--rooknamespace",
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default="rook-ceph", help="rook namespace")
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PARSER.add_argument("-id", "--userid",
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default="admin", help="user ID to connect to ceph cluster")
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PARSER.add_argument("-key", "--userkey",
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default="", help="user password to connect to ceph cluster")
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PARSER.add_argument("-cm", "--configmap", default="ceph-csi-config",
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help="configmap name which holds the cephcsi configuration")
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PARSER.add_argument("-cmn", "--configmapnamespace", default="default",
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help="namespace where configmap exists")
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def list_pvc_vol_name_mapping(arg):
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"""
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list pvc and volume name mapping
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"""
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table_rbd = prettytable.PrettyTable()
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table_rbd.title = "RBD"
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table_rbd.field_names = ["PVC Name", "PV Name", "Image Name", "PV name in omap",
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"Image ID in omap", "Image in cluster"]
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table_cephfs = prettytable.PrettyTable()
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table_cephfs.title = "CephFS"
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table_cephfs.field_names = ["PVC Name", "PV Name", "Subvolume Name", "PV name in omap",
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"Subvolume ID in omap", "Subvolume in cluster"]
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cmd = [arg.command]
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if arg.kubeconfig != "":
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if arg.command == "oc":
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cmd += ["--config", arg.kubeconfig]
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else:
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cmd += ["--kubeconfig", arg.kubeconfig]
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cmd += ["--namespace", arg.namespace]
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if arg.pvcname != "":
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cmd += ['get', 'pvc', arg.pvcname, '-o', 'json']
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# list all pvc and get mapping
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else:
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cmd += ['get', 'pvc', '-o', 'json']
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
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stdout, stderr = out.communicate()
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if stderr is not None:
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if arg.debug:
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print("failed to list pvc %s", stderr)
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sys.exit()
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try:
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pvcs = json.loads(stdout)
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except ValueError as err:
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print(err, stdout)
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sys.exit()
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format_and_print_tables(arg, pvcs, table_rbd, table_cephfs)
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def format_and_print_tables(arg, pvcs, table_rbd, table_cephfs):
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"""
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format and print tables with all relevant information.
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"""
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if arg.pvcname != "":
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pvname = pvcs['spec']['volumeName']
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pvdata = get_pv_data(arg, pvname)
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if is_rbd_pv(arg, pvname, pvdata):
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format_table(arg, pvcs, pvdata, table_rbd, True)
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else:
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format_table(arg, pvcs, pvdata, table_cephfs, False)
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else:
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for pvc in pvcs['items']:
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pvname = pvc['spec']['volumeName']
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pvdata = get_pv_data(arg, pvname)
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if is_rbd_pv(arg, pvname, pvdata):
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format_table(arg, pvc, pvdata, table_rbd, True)
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else:
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format_table(arg, pvc, pvdata, table_cephfs, False)
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print(table_rbd)
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print(table_cephfs)
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#pylint: disable=too-many-locals
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def format_table(arg, pvc_data, pvdata, table, is_rbd):
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"""
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format tables for pvc and image information
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"""
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# pvc name
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pvcname = pvc_data['metadata']['name']
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# get pv name
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pvname = pvc_data['spec']['volumeName']
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# get volume handler from pv
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volume_name = get_volume_handler_from_pv(arg, pvname)
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# get volume handler
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if volume_name == "":
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table.add_row([pvcname, "", "", False,
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False, False])
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return
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pool_name = get_pool_name(arg, volume_name, is_rbd)
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if pool_name == "":
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table.add_row([pvcname, pvname, "", False,
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False, False])
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return
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# get image id
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image_id = get_image_uuid(volume_name)
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if image_id is None:
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table.add_row([pvcname, pvname, "", False,
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False, False])
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return
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# get volname prefix
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volname_prefix = get_volname_prefix(arg, pvdata)
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# check image/subvolume details present rados omap
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pv_present, uuid_present = validate_volume_in_rados(arg, image_id, pvname, pool_name, is_rbd)
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present_in_cluster = False
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if is_rbd:
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present_in_cluster = check_image_in_cluster(arg, image_id, pool_name, volname_prefix)
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else:
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fsname = get_fsname_from_pvdata(arg, pvdata)
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subvolname = volname_prefix + image_id
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present_in_cluster = check_subvol_in_cluster(arg, subvolname, fsname)
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image_name = volname_prefix + image_id
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table.add_row([pvcname, pvname, image_name, pv_present,
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uuid_present, present_in_cluster])
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def validate_volume_in_rados(arg, image_id, pvc_name, pool_name, is_rbd):
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"""
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validate volume information in rados
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"""
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pv_present = check_pv_name_in_rados(arg, image_id, pvc_name, pool_name, is_rbd)
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uuid_present = check_image_uuid_in_rados(arg, image_id, pvc_name, pool_name, is_rbd)
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return pv_present, uuid_present
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def check_pv_name_in_rados(arg, image_id, pvc_name, pool_name, is_rbd):
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"""
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validate pvc information in rados
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"""
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omapkey = 'csi.volume.%s' % pvc_name
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cmd = ['rados', 'getomapval', 'csi.volumes.default',
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omapkey, "--pool", pool_name]
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if not arg.userkey:
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cmd += ["--id", arg.userid, "--key", arg.userkey]
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if not is_rbd:
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cmd += ["--namespace", "csi"]
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if arg.toolboxdeployed is True:
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kube = get_cmd_prefix(arg)
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cmd = kube + cmd
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
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stdout, stderr = out.communicate()
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if stderr is not None:
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return False
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name = b''
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lines = [x.strip() for x in stdout.split(b"\n")]
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for line in lines:
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if b' ' not in line:
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continue
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if b'value' in line and b'bytes' in line:
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continue
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part = re.findall(br'[A-Za-z0-9\-]+', line)
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if part:
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name += part[-1]
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if name.decode() != image_id:
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if arg.debug:
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print("expected image Id %s found Id in rados %s" %
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(image_id, name.decode()))
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return False
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return True
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def check_image_in_cluster(arg, image_uuid, pool_name, volname_prefix):
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"""
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validate pvc information in ceph backend
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"""
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image = volname_prefix + image_uuid
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cmd = ['rbd', 'info', image, "--pool", pool_name]
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if not arg.userkey:
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cmd += ["--id", arg.userid, "--key", arg.userkey]
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if arg.toolboxdeployed is True:
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kube = get_cmd_prefix(arg)
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cmd = kube + cmd
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
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stdout, stderr = out.communicate()
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if stderr is not None:
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if arg.debug:
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print(b"failed to toolbox %s", stderr)
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return False
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if b"No such file or directory" in stdout:
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if arg.debug:
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print("image not found in cluster")
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return False
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return True
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def check_image_uuid_in_rados(arg, image_id, pvc_name, pool_name, is_rbd):
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"""
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validate image uuid in rados
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"""
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omapkey = 'csi.volume.%s' % image_id
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cmd = ['rados', 'getomapval', omapkey, "csi.volname", "--pool", pool_name]
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if not arg.userkey:
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cmd += ["--id", arg.userid, "--key", arg.userkey]
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if not is_rbd:
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cmd += ["--namespace", "csi"]
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if arg.toolboxdeployed is True:
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kube = get_cmd_prefix(arg)
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cmd = kube + cmd
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
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stdout, stderr = out.communicate()
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if stderr is not None:
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if arg.debug:
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print("failed to get toolbox %s", stderr)
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return False
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name = b''
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lines = [x.strip() for x in stdout.split(b"\n")]
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for line in lines:
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if b' ' not in line:
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continue
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if b'value' in line and b'bytes' in line:
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continue
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part = re.findall(br'[A-Za-z0-9\-]+', line)
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if part:
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name += part[-1]
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if name.decode() != pvc_name:
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if arg.debug:
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print("expected image Id %s found Id in rados %s" %
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(pvc_name, name.decode()))
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return False
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return True
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def get_cmd_prefix(arg):
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"""
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Returns command prefix
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"""
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kube = [arg.command]
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if arg.kubeconfig != "":
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if arg.command == "oc":
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kube += ["--config", arg.kubeconfig]
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else:
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kube += ["--kubeconfig", arg.kubeconfig]
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tool_box_name = get_tool_box_pod_name(arg)
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kube += ['exec', '-it', tool_box_name, '-n', arg.rooknamespace, '--']
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return kube
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def get_image_uuid(volume_handler):
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"""
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fetch image uuid from volume handler
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"""
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image_id = volume_handler.split('-')
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if len(image_id) < 9:
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return None
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img_id = "-"
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return img_id.join(image_id[len(image_id)-5:])
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def get_volume_handler_from_pv(arg, pvname):
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"""
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fetch volume handler from pv
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"""
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cmd = [arg.command]
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if arg.kubeconfig != "":
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if arg.command == "oc":
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cmd += ["--config", arg.kubeconfig]
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else:
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cmd += ["--kubeconfig", arg.kubeconfig]
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cmd += ['get', 'pv', pvname, '-o', 'json']
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
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stdout, stderr = out.communicate()
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if stderr is not None:
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if arg.debug:
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print("failed to pv %s", stderr)
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return ""
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try:
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vol = json.loads(stdout)
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return vol['spec']['csi']['volumeHandle']
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except ValueError as err:
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if arg.debug:
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print("failed to pv %s", err)
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return ""
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def get_tool_box_pod_name(arg):
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"""
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get tool box pod name
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"""
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cmd = [arg.command]
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if arg.kubeconfig != "":
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if arg.command == "oc":
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cmd += ["--config", arg.kubeconfig]
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else:
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cmd += ["--kubeconfig", arg.kubeconfig]
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cmd += ['get', 'po', '-l=app=rook-ceph-tools',
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'-n', arg.rooknamespace, '-o', 'json']
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
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stdout, stderr = out.communicate()
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if stderr is not None:
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if arg.debug:
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print("failed to get toolbox pod name %s", stderr)
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return ""
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try:
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pod_name = json.loads(stdout)
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return pod_name['items'][0]['metadata']['name']
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except ValueError as err:
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if arg.debug:
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print("failed to pod %s", err)
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return ""
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#pylint: disable=too-many-branches
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def get_pool_name(arg, vol_id, is_rbd):
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"""
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get pool name from ceph backend
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"""
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if is_rbd:
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cmd = ['ceph', 'osd', 'lspools', '--format=json']
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else:
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cmd = ['ceph', 'fs', 'ls', '--format=json']
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if not arg.userkey:
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cmd += ["--id", arg.userid, "--key", arg.userkey]
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if arg.toolboxdeployed is True:
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kube = get_cmd_prefix(arg)
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cmd = kube + cmd
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
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stdout, stderr = out.communicate()
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if stderr is not None:
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if arg.debug:
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print("failed to get the pool name %s", stderr)
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return ""
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try:
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pools = json.loads(stdout)
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except ValueError as err:
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if arg.debug:
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print("failed to get the pool name %s", err)
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return ""
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if is_rbd:
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pool_id = vol_id.split('-')
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if len(pool_id) < 4:
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raise Exception("pool id not in the proper format")
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if pool_id[3] in arg.rooknamespace:
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pool_id = pool_id[4]
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else:
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pool_id = pool_id[3]
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for pool in pools:
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if int(pool_id) is int(pool['poolnum']):
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return pool['poolname']
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else:
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for pool in pools:
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return pool['metadata_pool']
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return ""
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def check_subvol_in_cluster(arg, subvol_name, fsname):
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"""
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Checks if subvolume exists in cluster or not.
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"""
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# check if user has specified subvolumeGroup
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subvol_group = get_subvol_group(arg)
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return check_subvol_path(arg, subvol_name, subvol_group, fsname)
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def check_subvol_path(arg, subvol_name, subvol_group, fsname):
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"""
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Returns True if subvolume path exists in the cluster.
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"""
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cmd = ['ceph', 'fs', 'subvolume', 'getpath',
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fsname, subvol_name, subvol_group]
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if not arg.userkey:
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cmd += ["--id", arg.userid, "--key", arg.userkey]
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if arg.toolboxdeployed is True:
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kube = get_cmd_prefix(arg)
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cmd = kube + cmd
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with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
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stdout, stderr = out.communicate()
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if stderr is not None:
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if arg.debug:
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print("failed to get toolbox %s", stderr)
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return False
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if b"Error" in stdout:
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if arg.debug:
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print("subvolume not found in cluster", stdout)
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return False
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return True
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def get_subvol_group(arg):
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"""
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Returns sub volume group from configmap.
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"""
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cmd = [arg.command]
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if arg.kubeconfig != "":
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if arg.command == "oc":
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cmd += ["--config", arg.kubeconfig]
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else:
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cmd += ["--kubeconfig", arg.kubeconfig]
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|
cmd += ['get', 'cm', arg.configmap, '-o', 'json']
|
|
cmd += ['--namespace', arg.configmapnamespace]
|
|
|
|
with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
|
|
stdout, stderr = out.communicate()
|
|
|
|
if stderr is not None:
|
|
if arg.debug:
|
|
print("failed to get configmap %s", stderr)
|
|
sys.exit()
|
|
try:
|
|
config_map = json.loads(stdout)
|
|
except ValueError as err:
|
|
print(err, stdout)
|
|
sys.exit()
|
|
|
|
# default subvolumeGroup
|
|
subvol_group = "csi"
|
|
cm_data = config_map['data'].get('config.json')
|
|
# Absence of 'config.json' means that the configmap
|
|
# is created by Rook and there won't be any provision to
|
|
# specify subvolumeGroup
|
|
if cm_data:
|
|
if "subvolumeGroup" in cm_data:
|
|
try:
|
|
cm_data_list = json.loads(cm_data)
|
|
except ValueError as err:
|
|
print(err, stdout)
|
|
sys.exit()
|
|
subvol_group = cm_data_list[0]['cephFS']['subvolumeGroup']
|
|
return subvol_group
|
|
|
|
def is_rbd_pv(arg, pvname, pvdata):
|
|
"""
|
|
Checks if volume attributes in a pv has an attribute named 'fsname'.
|
|
If it has, returns False else return True.
|
|
"""
|
|
if not pvdata:
|
|
if arg.debug:
|
|
print("failed to get pvdata for %s", pvname)
|
|
sys.exit()
|
|
|
|
volume_attr = pvdata['spec']['csi']['volumeAttributes']
|
|
key = 'fsName'
|
|
if key in volume_attr.keys():
|
|
return False
|
|
return True
|
|
|
|
def get_pv_data(arg, pvname):
|
|
"""
|
|
Returns pv data for a given pvname.
|
|
"""
|
|
pvdata = {}
|
|
cmd = [arg.command]
|
|
if arg.kubeconfig != "":
|
|
if arg.command == "oc":
|
|
cmd += ["--config", arg.kubeconfig]
|
|
else:
|
|
cmd += ["--kubeconfig", arg.kubeconfig]
|
|
|
|
cmd += ['get', 'pv', pvname, '-o', 'json']
|
|
|
|
with subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) as out:
|
|
stdout, stderr = out.communicate()
|
|
|
|
if stderr is not None:
|
|
if arg.debug:
|
|
print("failed to get pv %s", stderr)
|
|
sys.exit()
|
|
try:
|
|
pvdata = json.loads(stdout)
|
|
except ValueError as err:
|
|
if arg.debug:
|
|
print("failed to get pv %s", err)
|
|
sys.exit()
|
|
return pvdata
|
|
|
|
def get_volname_prefix(arg, pvdata):
|
|
"""
|
|
Returns volname prefix stored in storage class/pv,
|
|
defaults to "csi-vol-"
|
|
"""
|
|
volname_prefix = "csi-vol-"
|
|
if not pvdata:
|
|
if arg.debug:
|
|
print("failed to get pv data")
|
|
sys.exit()
|
|
volume_attr = pvdata['spec']['csi']['volumeAttributes']
|
|
key = 'volumeNamePrefix'
|
|
if key in volume_attr.keys():
|
|
volname_prefix = volume_attr[key]
|
|
return volname_prefix
|
|
|
|
def get_fsname_from_pvdata(arg, pvdata):
|
|
"""
|
|
Returns fsname stored in pv data
|
|
"""
|
|
fsname = 'myfs'
|
|
if not pvdata:
|
|
if arg.debug:
|
|
print("failed to get pv data")
|
|
sys.exit()
|
|
volume_attr = pvdata['spec']['csi']['volumeAttributes']
|
|
key = 'fsName'
|
|
if key in volume_attr.keys():
|
|
fsname = volume_attr[key]
|
|
else:
|
|
if arg.debug:
|
|
print("fsname is not set in storageclass/pv")
|
|
sys.exit()
|
|
return fsname
|
|
|
|
if __name__ == "__main__":
|
|
ARGS = PARSER.parse_args()
|
|
if ARGS.command not in ["kubectl", "oc"]:
|
|
print("%s command not supported" % ARGS.command)
|
|
sys.exit(1)
|
|
if sys.version_info[0] < 3:
|
|
print("python version less than 3 is not supported.")
|
|
sys.exit(1)
|
|
list_pvc_vol_name_mapping(ARGS)
|