Newer
Older
František Řezníček
committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
""" OpenStack migrator - ceph library """
import json
import os.path
from lib import remote_cmd_exec, log_or_assert
def get_ceph_client_name(args, ceph_src_pool_name, ceph_dst_pool_name=None):
""" identify which ceph user to use for planned ceph operation """
int_pool_name = ceph_dst_pool_name if ceph_dst_pool_name else ceph_src_pool_name
return "client.cinder" if int_pool_name in (args.source_ceph_cinder_pool_name, args.source_ceph_ephemeral_pool_name,) else "client.migrator"
def ceph_rbd_images_list(args, pool_name):
""" list ceph RBD images in pool named pool_name """
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-images-list.sh')
stdout, _, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"{script_path} {pool_name}")
assert stdout, f"RBD pool ({pool_name}) images received successfully (non-empty RBD list)"
assert ecode == 0, f"RBD pool ({pool_name}) images received successfully (ecode)"
return stdout.splitlines()
def ceph_rbd_image_info(args, pool_name, rbd_image_name):
""" get ceph RBD image information """
ceph_client_name = get_ceph_client_name(args, pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-info.sh')
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"CEPH_USER={ceph_client_name} {script_path} {pool_name} {rbd_image_name}")
return json.loads(stdout), stderr, ecode
def ceph_rbd_image_exists(args, pool_name, rbd_image_name):
""" detect whether RBD image {pool_name}/{rbd_image_name} exists """
ceph_client_name = get_ceph_client_name(args, pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-exists.sh')
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"CEPH_USER={ceph_client_name} {script_path} {pool_name} {rbd_image_name}")
return stdout.splitlines(), stderr, ecode
def ceph_rbd_image_delete(args, pool_name, rbd_image_name):
""" delete RBD image {pool_name}/{rbd_image_name} """
ceph_client_name = get_ceph_client_name(args, pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-delete.sh')
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"CEPH_USER={ceph_client_name} {script_path} {pool_name} {rbd_image_name}")
return stdout.splitlines(), stderr, ecode
def ceph_rbd_image_flatten(args, pool_name, rbd_image_name):
""" flatten RBD image {pool_name}/{rbd_image_name} """
ceph_client_name = get_ceph_client_name(args, pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-flatten.sh')
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"CEPH_USER={ceph_client_name} {script_path} {pool_name} {rbd_image_name}")
return stdout.splitlines(), stderr, ecode
def ceph_rbd_image_clone(args, src_pool_name, src_rbd_image_name, src_rbd_image_snapshot_name,
dst_pool_name, dst_rbd_image_name):
""" clone RBD image {src_pool_name}/{src_rbd_image_name}@{src_rbd_image_snapshot_name} -> {dst_pool_name}/{dst_rbd_image_name}"""
ceph_client_name = get_ceph_client_name(args, src_pool_name, dst_pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-clone.sh')
cmd = f"CEPH_USER={ceph_client_name} {script_path} {src_pool_name} {src_rbd_image_name} {src_rbd_image_snapshot_name} {dst_pool_name} {dst_rbd_image_name}"
František Řezníček
committed
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
František Řezníček
committed
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
return stdout.splitlines(), stderr, ecode
def ceph_rbd_image_copy(args, src_pool_name, src_rbd_image_name, dst_pool_name, dst_rbd_image_name):
""" copy RBD image {src_pool_name}/{src_rbd_image_name} -> {dst_pool_name}/{dst_rbd_image_name}"""
ceph_client_name = get_ceph_client_name(args, src_pool_name, dst_pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-copy.sh')
cmd = f"CEPH_USER={ceph_client_name} {script_path} {src_pool_name} {src_rbd_image_name} {dst_pool_name} {dst_rbd_image_name}"
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
cmd)
return stdout.splitlines(), stderr, ecode
def ceph_rbd_image_snapshot_exists(args, pool_name, rbd_image_name, rbd_image_snapshot_name):
""" detect whether RBD image snapshot {pool_name}/{rbd_image_name}@{rbd_image_snapshot_name} exists """
ceph_client_name = get_ceph_client_name(args, pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-snapshot-exists.sh')
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"CEPH_USER={ceph_client_name} {script_path} {pool_name} {rbd_image_name} {rbd_image_snapshot_name}")
return stdout.splitlines(), stderr, ecode
def ceph_rbd_image_snapshot_create(args, pool_name, rbd_image_name, rbd_image_snapshot_name):
""" create RBD image snapshot {pool_name}/{rbd_image_name}@{rbd_image_snapshot_name} """
ceph_client_name = get_ceph_client_name(args, pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-snapshot-create.sh')
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"CEPH_USER={ceph_client_name} {script_path} {pool_name} {rbd_image_name} {rbd_image_snapshot_name}")
return stdout.splitlines(), stderr, ecode
def ceph_rbd_image_snapshot_delete(args, pool_name, rbd_image_name, rbd_image_snapshot_name):
""" delete RBD image snapshot {pool_name}/{rbd_image_name}@{rbd_image_snapshot_name} """
ceph_client_name = get_ceph_client_name(args, pool_name)
script_path = os.path.join(args.ceph_migrator_host_base_dir, 'ceph-rbd-image-snapshot-delete.sh')
stdout, stderr, ecode = remote_cmd_exec(args.ceph_migrator_host,
args.ceph_migrator_user,
args.ceph_migrator_sshkeyfile.name,
f"CEPH_USER={ceph_client_name} {script_path} {pool_name} {rbd_image_name} {rbd_image_snapshot_name}")
return stdout.splitlines(), stderr, ecode
def migrate_rbd_image(args, server_block_device_mapping):
""" migrate source (G1) ceph RBD image to destination (G2) ceph """
František Řezníček
committed
## G1: detect existing G1 RBD image
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-exists.sh prod-ephemeral-vms 0069e95e-e805-44ff-bab5-872424312ff6
source_server_rbd_images, stderr, ecode = ceph_rbd_image_exists(args,
server_block_device_mapping['source']['ceph_pool_name'],
server_block_device_mapping['source']['ceph_rbd_image_name'])
log_or_assert(args, "G.01 Source OpenStack VM RBD image exists - query succeeded", ecode == 0, locals())
log_or_assert(args, "G.01 Source OpenStack VM RBD image exists - single image returned",
František Řezníček
committed
source_server_rbd_images and len(source_server_rbd_images) == 1, locals())
source_server_rbd_image = source_server_rbd_images[0]
## G2: find volume
#CEPH_USER=client.migrator ~/migrator/ceph-rbd-image-exists.sh cloud-cinder-volumes-prod-brno <g2-rbd-image-name>
destination_server_rbd_images, stderr, ecode = ceph_rbd_image_exists(args,
server_block_device_mapping['destination']['ceph_pool_name'],
server_block_device_mapping['destination']['volume_id'])
log_or_assert(args, "G.02 Destination OpenStack VM RBD image exists - query succeeded", ecode == 0, locals())
log_or_assert(args, "G.02 Destination OpenStack VM RBD image exists - single image returned",
František Řezníček
committed
destination_server_rbd_images and len(destination_server_rbd_images) == 1, locals())
destination_server_rbd_image = destination_server_rbd_images[0]
## G1: create RBD image protected snapshot
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-snapshot-exists.sh prod-ephemeral-vms 006e230e-df45-4f33-879b-19eada244489_disk migration-snap2 # 1
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-snapshot-create.sh prod-ephemeral-vms 006e230e-df45-4f33-879b-19eada244489_disk migration-snap2 # 0
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-snapshot-exists.sh prod-ephemeral-vms 006e230e-df45-4f33-879b-19eada244489_disk migration-snap2 # 0
source_rbd_image_snapshot_name = f"g1-g2-migration-{source_server_rbd_image}"
stdout, stderr, ecode = ceph_rbd_image_snapshot_exists(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_server_rbd_image,
source_rbd_image_snapshot_name)
František Řezníček
committed
log_or_assert(args,
"G.03 Source OpenStack VM RBD image has non-colliding snapshot " \
František Řezníček
committed
f"({server_block_device_mapping['source']['ceph_pool_name']}/{source_server_rbd_image}@{source_rbd_image_snapshot_name})",
ecode != 0, locals())
stdout, stderr, ecode = ceph_rbd_image_snapshot_create(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_server_rbd_image,
source_rbd_image_snapshot_name)
František Řezníček
committed
log_or_assert(args,
"G.04 Source OpenStack VM RBD image snapshot created " \
František Řezníček
committed
f"({server_block_device_mapping['source']['ceph_pool_name']}/{source_server_rbd_image}@{source_rbd_image_snapshot_name})",
ecode == 0, locals())
stdout, stderr, ecode = ceph_rbd_image_snapshot_exists(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_server_rbd_image,
source_rbd_image_snapshot_name)
František Řezníček
committed
log_or_assert(args,
"G.05 Source OpenStack VM RBD image snapshot exists " \
František Řezníček
committed
f"({server_block_device_mapping['source']['ceph_pool_name']}/{source_server_rbd_image}@{source_rbd_image_snapshot_name})",
ecode == 0, locals())
## G2: delete RBD image
#CEPH_USER=client.migrator ~/migrator/ceph-rbd-image-delete.sh cloud-cinder-volumes-prod-brno <g2-rbd-image-name>
## G2: confirm volume is deleted
#CEPH_USER=client.migrator ~/migrator/ceph-rbd-image-exists.sh cloud-cinder-volumes-prod-brno <g2-rbd-image-name> # 1
stdout, stderr, ecode = ceph_rbd_image_delete(args,
server_block_device_mapping['destination']['ceph_pool_name'],
destination_server_rbd_image)
František Řezníček
committed
log_or_assert(args,
f"G.06 Destination OpenStack VM RBD image deletion succeeded ({server_block_device_mapping['destination']['ceph_pool_name']}/{destination_server_rbd_image})",
František Řezníček
committed
ecode == 0, locals())
stdout, stderr, ecode = ceph_rbd_image_exists(args,
server_block_device_mapping['destination']['ceph_pool_name'],
destination_server_rbd_image)
František Řezníček
committed
log_or_assert(args,
f"G.07 Destination OpenStack VM RBD image does not exist ({server_block_device_mapping['destination']['ceph_pool_name']}/{destination_server_rbd_image})",
František Řezníček
committed
ecode != 0, locals())
## G1: clone from snapshot
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-clone.sh prod-ephemeral-vms 006e230e-df45-4f33-879b-19eada244489_disk migration-snap2 prod-ephemeral-vms migrated-006e230e-df45-4f33-879b-19eada244489_disk
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-exists.sh prod-ephemeral-vms migrated-006e230e-df45-4f33-879b-19eada244489_disk
source_rbd_cloned_image_name = f"g1-g2-migration-{source_server_rbd_image}"
stdout, stderr, ecode = ceph_rbd_image_clone(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_server_rbd_image,
source_rbd_image_snapshot_name,
server_block_device_mapping['source']['ceph_pool_name'],
source_rbd_cloned_image_name)
František Řezníček
committed
log_or_assert(args,
"G.08 Source OpenStack VM RBD image cloned succesfully " \
f"({server_block_device_mapping['source']['ceph_pool_name']}/{source_server_rbd_image}@{source_rbd_image_snapshot_name} -> " \
f"{server_block_device_mapping['source']['ceph_pool_name']}/{source_rbd_cloned_image_name})",
František Řezníček
committed
ecode == 0, locals())
stdout, stderr, ecode = ceph_rbd_image_exists(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_rbd_cloned_image_name)
František Řezníček
committed
log_or_assert(args,
f"G.09 Source OpenStack VM cloned RBD image exists ({server_block_device_mapping['source']['ceph_pool_name']}/{source_rbd_cloned_image_name})",
František Řezníček
committed
ecode == 0, locals())
## G1: flatten cloned RBD image
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-flatten.sh prod-ephemeral-vms migrated-006e230e-df45-4f33-879b-19eada244489_disk
stdout, stderr, ecode = ceph_rbd_image_flatten(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_rbd_cloned_image_name)
František Řezníček
committed
log_or_assert(args,
f"G.10 Source OpenStack VM cloned RBD image flatten successfully ({server_block_device_mapping['source']['ceph_pool_name']}/{source_rbd_cloned_image_name})",
ecode == 0, locals())
## G1->G2: copy RBD image to target pool
#CEPH_USER=client.migrator ~/migrator/ceph-rbd-image-copy.sh prod-ephemeral-vms migrated-006e230e-df45-4f33-879b-19eada244489_disk cloud-cinder-volumes-prod-brno <g2-rbd-image-name>
#CEPH_USER=client.migrator ~/migrator/ceph-rbd-image-exists.sh cloud-cinder-volumes-prod-brno <g2-rbd-image-name> # 0
stdout, stderr, ecode = ceph_rbd_image_copy(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_rbd_cloned_image_name,
server_block_device_mapping['destination']['ceph_pool_name'],
destination_server_rbd_image)
František Řezníček
committed
log_or_assert(args,
"G.11 Source OpenStack VM RBD image copied G1 -> G2 succesfully" \
f"{server_block_device_mapping['source']['ceph_pool_name']}/{source_rbd_cloned_image_name} -> " \
f"{server_block_device_mapping['destination']['ceph_pool_name']}/{destination_server_rbd_image}",
František Řezníček
committed
ecode == 0, locals())
stdout, stderr, ecode = ceph_rbd_image_exists(args,
server_block_device_mapping['destination']['ceph_pool_name'],
destination_server_rbd_image)
František Řezníček
committed
log_or_assert(args,
f"G.12 Destination OpenStack VM RBD image exists ({server_block_device_mapping['destination']['ceph_pool_name']}/{destination_server_rbd_image})",
ecode == 0, locals())
## G1: delete cloned RBD image
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-delete.sh prod-ephemeral-vms migrated-006e230e-df45-4f33-879b-19eada244489_disk
stdout, stderr, ecode = ceph_rbd_image_delete(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_rbd_cloned_image_name)
František Řezníček
committed
log_or_assert(args,
f"G.13 Source OpenStack VM RBD cloned image deletion succeeded ({server_block_device_mapping['source']['ceph_pool_name']}/{source_rbd_cloned_image_name})",
ecode == 0, locals())
stdout, stderr, ecode = ceph_rbd_image_exists(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_rbd_cloned_image_name)
František Řezníček
committed
log_or_assert(args,
f"G.14 Source OpenStack VM cloned RBD image does not exist anymore ({server_block_device_mapping['source']['ceph_pool_name']}/{source_rbd_cloned_image_name})",
ecode != 0, locals())
## G1: remove created snapshot
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-snapshot-exists.sh prod-ephemeral-vms 006e230e-df45-4f33-879b-19eada244489_disk migration-snap2 # 0
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-snapshot-delete.sh prod-ephemeral-vms 006e230e-df45-4f33-879b-19eada244489_disk migration-snap2
#CEPH_USER=client.cinder ~/migrator/ceph-rbd-image-snapshot-exists.sh prod-ephemeral-vms 006e230e-df45-4f33-879b-19eada244489_disk migration-snap2 # 1
stdout, stderr, ecode = ceph_rbd_image_snapshot_exists(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_server_rbd_image,
source_rbd_image_snapshot_name)
František Řezníček
committed
log_or_assert(args,
"G.15 Source OpenStack VM RBD image snapshot still exists " \
f"{server_block_device_mapping['source']['ceph_pool_name']}/{source_server_rbd_image}@{source_rbd_image_snapshot_name}",
ecode == 0, locals())
stdout, stderr, ecode = ceph_rbd_image_snapshot_delete(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_server_rbd_image,
source_rbd_image_snapshot_name)
František Řezníček
committed
log_or_assert(args,
"G.16 Source OpenStack VM RBD image snapshot deletion succeeeded " \
f"{server_block_device_mapping['source']['ceph_pool_name']}/{source_server_rbd_image}@{source_rbd_image_snapshot_name}",
ecode == 0, locals())
stdout, stderr, ecode = ceph_rbd_image_snapshot_exists(args,
server_block_device_mapping['source']['ceph_pool_name'],
source_server_rbd_image,
source_rbd_image_snapshot_name)
František Řezníček
committed
log_or_assert(args,
"G.17 Source OpenStack VM RBD image snapshot does not exist anymore " \
f"{server_block_device_mapping['source']['ceph_pool_name']}/{source_server_rbd_image}@{source_rbd_image_snapshot_name}",
ecode != 0, locals())