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#!/usr/bin/python3
import logging as log
from configobj import ConfigObj
import subprocess
import json
import os
"""
Runs a test against a rgw with the data cache enabled. A client must be
set in the config for this task. This client must be the same client
that is in the config for the `rgw` task.
In the `overrides` section `datacache` and `datacache` must be configured for
the `rgw` task and the ceph conf overrides must contain the below config
variables in the client section.
`s3cmd` must be added as an extra_package to the install task.
In the `workunit` task, `- rgw/run-datacache.sh` must be set for the client that
is in the config for the `rgw` task. The `RGW_DATACACHE_PATH` variable must be
set in the workunit's `env` and it must match the `datacache_path` given to the
`rgw` task in `overrides`.
Ex:
- install:
extra_packages:
deb: ['s3cmd']
rpm: ['s3cmd']
- overrides:
rgw:
datacache: true
datacache_path: /tmp/rgw_datacache
install:
extra_packages:
deb: ['s3cmd']
rpm: ['s3cmd']
ceph:
conf:
client:
rgw d3n l1 datacache persistent path: /tmp/rgw_datacache/
rgw d3n l1 datacache size: 10737417240
rgw d3n l1 local datacache enabled: true
rgw enable ops log: true
- rgw:
client.0:
- workunit:
clients:
client.0:
- rgw/run-datacache.sh
env:
RGW_DATACACHE_PATH: /tmp/rgw_datacache
cleanup: true
"""
log.basicConfig(level=log.DEBUG)
""" Constants """
USER = 'rgw_datacache_user'
DISPLAY_NAME = 'DatacacheUser'
ACCESS_KEY = 'NX5QOQKC6BH2IDN8HC7A'
SECRET_KEY = 'LnEsqNNqZIpkzauboDcLXLcYaWwLQ3Kop0zAnKIn'
BUCKET_NAME = 'datacachebucket'
FILE_NAME = '7M.dat'
GET_FILE_NAME = '7M-get.dat'
def exec_cmd(cmd):
log.debug("exec_cmd(%s)", cmd)
try:
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
out, err = proc.communicate()
if proc.returncode == 0:
log.info('command succeeded')
if out is not None: log.info(out)
return out
else:
raise Exception("error: %s \nreturncode: %s" % (err, proc.returncode))
except Exception as e:
log.error('command failed')
log.error(e)
return False
def get_radosgw_endpoint():
out = exec_cmd('sudo netstat -nltp | egrep "rados|valgr"') # short for radosgw/valgrind
x = out.decode('utf8').split(" ")
port = [i for i in x if ':' in i][0].split(':')[1]
log.info('radosgw port: %s' % port)
proto = "http"
hostname = '127.0.0.1'
if port == '443':
proto = "https"
endpoint = hostname
log.info("radosgw endpoint is: %s", endpoint)
return endpoint, proto
def create_s3cmd_config(path, proto):
"""
Creates a minimal config file for s3cmd
"""
log.info("Creating s3cmd config...")
use_https_config = "False"
log.info("proto for s3cmd config is %s", proto)
if proto == "https":
use_https_config = "True"
s3cmd_config = ConfigObj(
indent_type='',
infile={
'default':
{
'host_bucket': 'no.way.in.hell',
'use_https': use_https_config,
},
}
)
f = open(path, 'wb')
s3cmd_config.write(f)
f.close()
log.info("s3cmd config written")
def get_cmd_output(cmd_out):
out = cmd_out.decode('utf8')
out = out.strip('\n')
return out
def main():
"""
execute the datacache test
"""
# setup for test
cache_dir = os.environ['RGW_DATACACHE_PATH']
log.debug("datacache dir from config is: %s", cache_dir)
out = exec_cmd('pwd')
pwd = get_cmd_output(out)
log.debug("pwd is: %s", pwd)
endpoint, proto = get_radosgw_endpoint()
# create 7M file to put
outfile = pwd + '/' + FILE_NAME
exec_cmd('dd if=/dev/urandom of=%s bs=1M count=7' % (outfile))
# create user
exec_cmd('radosgw-admin user create --uid %s --display-name %s --access-key %s --secret %s'
% (USER, DISPLAY_NAME, ACCESS_KEY, SECRET_KEY))
# create s3cmd config
s3cmd_config_path = pwd + '/s3cfg'
create_s3cmd_config(s3cmd_config_path, proto)
# create a bucket
exec_cmd('s3cmd --access_key=%s --secret_key=%s --config=%s --no-check-hostname --host=%s mb s3://%s'
% (ACCESS_KEY, SECRET_KEY, s3cmd_config_path, endpoint, BUCKET_NAME))
# put an object in the bucket
exec_cmd('s3cmd --access_key=%s --secret_key=%s --config=%s --no-check-hostname --host=%s put %s s3://%s'
% (ACCESS_KEY, SECRET_KEY, s3cmd_config_path, endpoint, outfile, BUCKET_NAME))
# get object from bucket
get_file_path = pwd + '/' + GET_FILE_NAME
exec_cmd('s3cmd --access_key=%s --secret_key=%s --config=%s --no-check-hostname --host=%s get s3://%s/%s %s --force'
% (ACCESS_KEY, SECRET_KEY, s3cmd_config_path, endpoint, BUCKET_NAME, FILE_NAME, get_file_path))
# get info of object
out = exec_cmd('radosgw-admin object stat --bucket=%s --object=%s' % (BUCKET_NAME, FILE_NAME))
json_op = json.loads(out)
cached_object_name = json_op['manifest']['prefix']
log.debug("Cached object name is: %s", cached_object_name)
# check that the cache is enabled (does the cache directory empty)
out = exec_cmd('find %s -type f | wc -l' % (cache_dir))
chk_cache_dir = int(get_cmd_output(out))
log.debug("Check cache dir content: %s", chk_cache_dir)
if chk_cache_dir == 0:
log.info("NOTICE: datacache test object not found, inspect if datacache was bypassed or disabled during this check.")
return
# list the files in the cache dir for troubleshooting
out = exec_cmd('ls -l %s' % (cache_dir))
# get name of cached object and check if it exists in the cache
out = exec_cmd('find %s -name "*%s1"' % (cache_dir, cached_object_name))
cached_object_path = get_cmd_output(out)
log.debug("Path of file in datacache is: %s", cached_object_path)
out = exec_cmd('basename %s' % (cached_object_path))
basename_cmd_out = get_cmd_output(out)
log.debug("Name of file in datacache is: %s", basename_cmd_out)
# check to see if the cached object is in Ceph
out = exec_cmd('rados ls -p default.rgw.buckets.data')
rados_ls_out = get_cmd_output(out)
log.debug("rados ls output is: %s", rados_ls_out)
assert(basename_cmd_out in rados_ls_out)
log.debug("RGW Datacache test SUCCESS")
# remove datacache dir
#cmd = exec_cmd('rm -rf %s' % (cache_dir))
#log.debug("RGW Datacache dir deleted")
#^ commenting for future refrence - the work unit will continue running tests and if the cache_dir is removed
# all the writes to cache will fail with errno 2 ENOENT No such file or directory.
main()
log.info("Completed Datacache tests")
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