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Rafael Monnerat
slapos.toolbox
Commits
e275df64
Commit
e275df64
authored
Nov 25, 2014
by
Cédric de Saint Martin
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KVM resiliency test: use test framework.
Allows to not have to backport all changes to KVM test suite.
parent
f5454071
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slapos/resiliencytest/suites/kvm.py
slapos/resiliencytest/suites/kvm.py
+63
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slapos/resiliencytest/suites/kvm.py
View file @
e275df64
...
...
@@ -26,58 +26,16 @@
#
##############################################################################
# XXX: This module should use the resiliencytestsuite helper module to factor all code,
# like slaprunner test suite does.
# XXX: takeover module should be in slapos.toolbox, not in slapos.cookbook
from
slapos.recipe.addresiliency.takeover
import
takeover
import
slapos.slap
from
.resiliencytestsuite
import
ResiliencyTestSuite
import
logging
import
os
import
random
import
string
import
subprocess
import
sys
import
time
import
traceback
import
urllib
logger
=
logging
.
getLogger
(
'KVMResiliencyTest'
)
# Wait for 2 hours before renaming, so that replication of data is done
# (~1GB of data to backup)
SLEEP_TIME
=
2
*
60
*
60
# In case of unittest testnode (not scalability testnode), everything is local
UNIT_TEST_SLEEP_TYPE
=
900
def
fetchMainInstanceIP
(
current_partition
,
software_release
,
instance_name
):
return
current_partition
.
request
(
software_release
=
software_release
,
software_type
=
'kvm-resilient'
,
partition_reference
=
instance_name
).
getConnectionParameter
(
'ipv6'
)
def
setRandomKey
(
ip
):
"""
Set a random key that will be stored inside of the virtual hard drive.
"""
random_key
=
''
.
join
(
random
.
SystemRandom
().
sample
(
string
.
ascii_lowercase
,
20
))
for
i
in
range
(
0
,
60
):
connection
=
urllib
.
urlopen
(
'http://%s:10080/set?key=%s'
%
(
ip
,
random_key
))
if
connection
.
getcode
()
is
200
:
break
else
:
logger
.
info
(
'Impossible to connect to virtual machine to set key. sleeping...'
)
time
.
sleep
(
60
)
if
i
is
59
:
raise
Exception
(
'Bad return code when setting key in main instance, after trying for 60 minutes.'
)
return
random_key
def
fetchKey
(
ip
):
"""
Fetch the key that had been set on original virtual hard drive.
...
...
@@ -98,13 +56,7 @@ def fetchKey(ip):
return
new_key
def
runTestSuite
(
server_url
,
key_file
,
cert_file
,
computer_id
,
partition_id
,
software
,
namebase
,
kvm_rootinstance_name
,
# Number of instances: main instance (exporter) + clones (importer).
total_instance_count
=
"2"
,
type
=
None
):
class
KVMTestSuite
(
ResiliencyTestSuite
):
"""
Run KVM Resiliency Test.
Requires a specific KVM environment (virtual hard drive), see KVM SR for more
...
...
@@ -121,27 +73,27 @@ def runTestSuite(server_url, key_file, cert_file,
With the following python code running at boot in /root/number.py:
import os
from flask import Flask, abort, request
app = Flask(__name__)
storage = 'storage.txt'
@app.route("/")
def greeting_list(): # 'cause there are several greetings, and plural is forbidden.
return "Hello World"
@app.route("/get")
def get():
return open(storage, 'r').read()
@app.route("/set")
def set():
#if os.path.exists(storage):
# abort(503)
open(storage, 'w').write(request.args['key'])
return "OK"
if __name__ == "__main__":
app.run(host='0.0.0.0', port=80)
...
...
@@ -171,112 +123,59 @@ def runTestSuite(server_url, key_file, cert_file,
update-rc.d io defaults
"""
if
type
==
'UnitTest'
:
global
SLEEP_TIME
SLEEP_TIME
=
UNIT_TEST_SLEEP_TYPE
slap
=
slapos
.
slap
.
slap
()
slap
.
initializeConnection
(
server_url
,
key_file
,
cert_file
)
partition
=
slap
.
registerComputerPartition
(
computer_guid
=
computer_id
,
partition_id
=
partition_id
)
ip
=
fetchMainInstanceIP
(
partition
,
software
,
kvm_rootinstance_name
)
logger
.
info
(
'KVM IP is %s.'
%
ip
)
# In resilient stack, main instance (example with KVM) is named "kvm0",
# clones are named "kvm1", "kvm2", ...
clone_count
=
int
(
total_instance_count
)
-
1
# In case we have only one clone: test the takeover twice
# so that we test the reconstruction of a new clone.
if
clone_count
==
1
:
for
i
in
range
(
2
):
ip
=
testClone
(
1
,
ip
,
server_url
,
key_file
,
cert_file
,
computer_id
,
partition_id
,
software
,
namebase
,
partition
,
kvm_rootinstance_name
,
type
)
# In case we have more than one clone: test each clone one time.
else
:
# So first clone starts from 1.
current_clone
=
1
while
current_clone
<=
clone_count
:
ip
=
testClone
(
current_clone
,
ip
,
server_url
,
key_file
,
cert_file
,
computer_id
,
partition_id
,
software
,
namebase
,
partition
,
kvm_rootinstance_name
,
type
)
current_clone
=
current_clone
+
1
# All clones have been successfully tested: success.
return
True
def
testClone
(
current_clone
,
ip
,
server_url
,
key_file
,
cert_file
,
computer_id
,
partition_id
,
software
,
namebase
,
partition
,
kvm_rootinstance_name
,
test_type
):
logger
.
info
(
'Testing kvm%s.'
%
current_clone
)
key
=
setRandomKey
(
ip
)
logger
.
info
(
'Key set for test in current KVM: %s.'
%
key
)
logger
.
info
(
'Sleeping for %s seconds.'
%
SLEEP_TIME
)
time
.
sleep
(
SLEEP_TIME
)
# Make the clone instance takeover the main instance
logger
.
info
(
'Replacing main instance by clone instance...'
)
for
i
in
range
(
0
,
10
):
try
:
takeover
(
server_url
=
server_url
,
key_file
=
key_file
,
cert_file
=
cert_file
,
computer_guid
=
computer_id
,
partition_id
=
partition_id
,
software_release
=
software
,
namebase
=
namebase
,
winner_instance_suffix
=
str
(
current_clone
),
)
break
except
:
# SSLError
traceback
.
print_exc
()
if
i
is
9
:
raise
logger
.
warning
(
'takeover failed. Retrying...'
)
time
.
sleep
(
10
)
logger
.
info
(
'Done.'
)
if
test_type
==
'UnitTest'
:
# Run by classical erp5testnode using slapproxy
# Run slapos node instance
# XXX hardcoded
slapos_configuration_file_path
=
os
.
path
.
join
(
os
.
path
.
dirname
(
sys
.
argv
[
0
]),
'..'
,
'..'
,
'..'
,
'slapos.cfg'
def
_getPartitionParameterDict
(
self
):
"""
Overload default method.
"""
return
self
.
partition
.
request
(
software_release
=
self
.
software
,
software_type
=
'kvm-resilient'
,
partition_reference
=
self
.
root_instance_name
).
getConnectionParameterDict
()
def
generateData
(
self
):
"""
Set a random key that will be stored inside of the virtual hard drive.
"""
self
.
key
=
''
.
join
(
random
.
SystemRandom
().
sample
(
string
.
ascii_lowercase
,
20
))
self
.
logger
.
info
(
'Generated key is: %s'
%
self
.
key
)
def
pushDataOnMainInstance
(
self
):
self
.
logger
.
info
(
'Getting the KVM IP...'
)
self
.
ip
=
self
.
_getPartitionParameterDict
()[
'ipv6'
]
logger
.
info
(
'KVM IP is %s.'
%
self
.
ip
)
for
i
in
range
(
0
,
60
):
connection
=
urllib
.
urlopen
(
'http://%s:10080/set?key=%s'
%
(
self
.
ip
,
self
.
key
))
if
connection
.
getcode
()
is
200
:
break
else
:
logger
.
info
(
'Impossible to connect to virtual machine to set key. sleeping...'
)
time
.
sleep
(
60
)
if
i
is
59
:
raise
Exception
(
'Bad return code when setting key in main instance, after trying for 60 minutes.'
)
logger
.
info
(
'Key uploaded to KVM main instance.'
)
def
checkDataOnCloneInstance
(
self
):
self
.
ip
=
self
.
_returnNewInstanceParameter
(
parameter_key
=
'ipv6'
,
old_parameter_value
=
self
.
ip
)
print
slapos_configuration_file_path
command
=
[
'/opt/slapos/bin/slapos'
,
'node'
,
'instance'
,
'--cfg=%s'
%
slapos_configuration_file_path
,
'--pidfile=slapos.pid'
]
subprocess
.
Popen
(
command
).
wait
()
subprocess
.
Popen
(
command
).
wait
()
subprocess
.
Popen
(
command
).
wait
()
new_ip
=
ip
else
:
# ScalabilityTest
# Wait for the new IP (of old-clone new-main instance) to appear.
logger
.
info
(
'Waiting for new main instance to be ready...'
)
new_ip
=
None
while
not
new_ip
or
new_ip
==
'None'
or
new_ip
==
ip
:
logger
.
info
(
'Not ready yet. SlapOS says main IP is %s'
%
new_ip
)
time
.
sleep
(
60
)
new_ip
=
fetchMainInstanceIP
(
partition
,
software
,
kvm_rootinstance_name
)
logger
.
info
(
'New IP of instance is %s'
%
new_ip
)
new_key
=
fetchKey
(
new_ip
)
logger
.
info
(
'Key on this new instance is %s'
%
new_key
)
# Compare with original key. If same: success.
if
new_key
==
key
:
logger
.
info
(
'Success for clone %s.'
%
current_clone
)
else
:
logger
.
info
(
'Failure for clone %s. Aborting.'
%
current_clone
)
return
False
# Setup "new old ip" for next clone, so that it will test it is different
# from current clone
return
new_ip
new_key
=
fetchKey
(
self
.
ip
)
logger
.
info
(
'Key on this new instance is %s'
%
new_key
)
# Compare with original key. If same: success.
if
new_key
==
self
.
key
:
self
.
logger
.
info
(
'Data are the same: success.'
)
return
True
else
:
self
.
logger
.
info
(
'Data are different: failure.'
)
def
runTestSuite
(
*
args
,
**
kwargs
):
"""
Run KVM Resiliency Test.
"""
return
KVMTestSuite
(
*
args
,
**
kwargs
).
runTestSuite
()
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