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qupgrade.py
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qupgrade.py
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#!/usr/bin/env python
# Copyright (c) 2018 Qumulo, Inc. All rights reserved.
#
# NOTICE: All information and intellectual property contained herein is the
# confidential property of Qumulo, Inc. Reproduction or dissemination of the
# information or intellectual property contained herein is strictly forbidden,
# unless separate prior written permission has been obtained from Qumulo, Inc.
# encoding=utf8
import sys
reload(sys)
# This is in here because python 2.7 struggles sometimes.
sys.setdefaultencoding('utf8')
# This is in here because of issues with OpenSSL on some platforms
# import urllib3
# urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
try:
import requests
from qumulo.rest_client import RestClient
except:
print("Unable to import requests and Qumulo api bindings")
print("Please run the following command:")
print("pip install qumulo_api requests")
sys.exit()
import argparse
import re
import os
import time
import json
from collections import OrderedDict
TRENDS_DOMAIN = "https://trends.qumulo.com"
QUMULO_SUPPORT_EMAIL = "care@qumulo.com"
class QSettings(object):
host = None
user = None
password = None
upgrade_path = None
sharepass = None
rc = None
download_only = None
current_version = None
to_version = None
model = None
def version_num(vers):
p1, p2, p3 = map(int, re.sub(r'[^0-9.]', '', vers).split('.')[:3])
return p1 * 10000 + p2 * 100 + p3
def version_short(vers):
p1, p2, p3 = re.sub(r'[^0-9.]', '', vers).split('.')[:3]
return p1 + "." + p2 + "." + p3
def log_print(msg):
print("%s: %s" % (time.strftime("%Y-%m-%d %H:%M:%S"), msg))
def get_download_versions(releases, qs):
download_versions = []
skipto_state = None
from_num = version_num(qs.current_version)
to_num = version_num(qs.to_version)
for release in releases:
release_num = version_num(release["version"])
skipto = None
if "skipto" in release and to_num >= version_num(release["skipto"]):
skipto = release["skipto"]
if release_num < from_num:
continue
elif release_num > to_num:
continue
elif release_num == from_num:
if skipto != None:
skipto_state = skipto
else:
if skipto_state != None:
if skipto_state == release["version"]:
download_versions.append(release)
skipto_state = None
elif skipto_state == None:
download_versions.append(release)
if skipto != None:
skipto_state = skipto
return download_versions
def get_upgrade_list(qs = None):
r = requests.get(TRENDS_DOMAIN + "/data/upgrade/versions/")
releases = json.loads(r.text)
if qs is None:
return releases
download_versions = get_download_versions(releases, qs)
return download_versions
def download_from_trends(qs):
#### Get list of releases ####
r = requests.get(TRENDS_DOMAIN + "/data/upgrade/versions/")
releases = json.loads(r.text)
release_exists = False
for release in releases:
if release["version"] == qs.to_version:
release_exists = True
if not release_exists:
log_print("Specified Qumulo Core version %s does not exist." % qs.to_version)
print("Please correct the upgrade version")
sys.exit()
#### create directory for upgrade qimgs ####
try:
qs.rc.fs.create_directory(name=qs.upgrade_path, dir_path='/')
except:
e = sys.exc_info()[1]
if 'fs_entry_exists_error' not in str(e):
log_print("Error creating directory '/%s' on %s. ** %s **" % (
qs.upgrade_path,
qs.host,
e))
#### get all qimgs from trends to qumulo cluster
download_versions = get_download_versions(releases, qs)
for rel in download_versions:
custom_qimg = ""
if qs.model == "AWS":
custom_qimg = "cloud_aws_"
elif qs.model == "HPE" and "hpe_size" in rel:
custom_qimg = "hpe_"
qimg = '%squmulo_core_%s.qimg' % (custom_qimg, rel['version'])
qumulo_qimg = '/' + qs.upgrade_path + '/' + qimg
#### check to see if qimg already exists on cluster ####
file_exists = False
try:
attrs = qs.rc.fs.get_attr(path = qumulo_qimg)
if int(attrs['size']) == rel["%ssize" % custom_qimg]:
file_exists = True
except:
e = sys.exc_info()[1]
if file_exists:
log_print("qimg file is already uploaded: %s" % qumulo_qimg)
continue
log_print("Preparing to download Qumulo Core: %s" % rel["version"])
try:
qs.rc.fs.create_file(dir_path='/' + qs.upgrade_path,
name=qimg)
except:
e = sys.exc_info()[1]
log_print("File creation error: %s" % e)
#### Only download if a local version of file doesn't exist.
if not os.path.exists(qimg) or os.path.getsize(qimg) != rel["%ssize" % custom_qimg]:
download_file(qimg, qs)
log_print("Load qimg file onto Qumulo Cluster via API: %s" % qimg)
with open(qimg, 'rb') as fr:
qs.rc.fs.write_file(path = '/%s/%s' % (
qs.upgrade_path,
qimg),
data_file=fr)
log_print("Upgrade file ready on Qumulo Cluster: %s" % qimg)
log_print("Removing local qimg file: %s" % qimg)
os.remove(qimg)
def download_file(qimg, qs):
log_print("Starting download of qimg file: %s" % qimg)
rsp = requests.get(TRENDS_DOMAIN + "/data/upgrade/version/%s?access_code=%s" % \
(qimg, qs.sharepass), allow_redirects=False)
if rsp.status_code == 404:
print("Unable to download qimg file. Please check the --sharepass password.")
sys.exit()
rsp = requests.get(rsp.headers["Location"], stream=True)
file_size = int(rsp.headers["content-length"])
perc = int(file_size * 0.05)
done_buckets = []
for i in range(0, int(1 / 0.05)):
done_buckets.append((i+1) * perc)
downloaded_bytes = 0
bucket_num = 0
sys.stdout.flush()
with open(qimg, 'wb') as fw:
for chunk in rsp.iter_content(chunk_size=1000000):
if chunk: # filter out keep-alive new chunks
fw.write(chunk)
downloaded_bytes += 1000000
if downloaded_bytes > done_buckets[bucket_num]:
sys.stdout.write("%s%% " % (bucket_num * 5, ))
sys.stdout.flush()
bucket_num += 1
sys.stdout.write("\n")
log_print("Completed download of qimg file: %s" % qimg)
def upgrade_cluster():
qs = QSettings()
quarterly_only = False
latest_quarterly_build = None
parser = argparse.ArgumentParser()
parser.add_argument('--qhost', required=True, help='Qumulo hostname or ip address')
parser.add_argument('--quser', required=True, help='Qumulo API user')
parser.add_argument('--qpass', required=True, help='Qumulo API password')
parser.add_argument('--qpath', default='upgrade', help='Root-based path to install/find the upgrade qimg file on the cluster')
parser.add_argument('--sharepass', help='Fileserver download password. Contact Qumulo for details')
parser.add_argument('--vers', required=True, help='The Qumulo Core version to upgrade to. Valid values include: a version number (2.10.0), "latest" and "latest_quartery"')
parser.add_argument('--download-only', default=False, help='Do not perform upgrades, Only download qimg files from fileserver', action='store_true')
args = parser.parse_args()
if args.vers == "latest":
args.vers = get_upgrade_list()[-1]["version"]
elif args.vers[0:8] == "latest_q":
args.vers = filter(lambda d: 'latest_quarterly_build' in d, get_upgrade_list())[0]["version"]
quarterly_only = True
elif re.match(r'^[0-9]+[.][0-9]+[.][0-9]+[A-Zz-z]*$', args.vers):
# this is a valid qumulo version
pass
elif re.match(r'^[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+[A-Zz-z]*$', args.vers):
# this is a valid qumulo version
pass
else:
log_print("Exiting")
print("'%s' is not a valid Qumulo Core version" % args.vers)
sys.exit()
qs.to_version = version_short(args.vers)
qs.host = args.qhost
qs.user = args.quser
qs.password = args.qpass
qs.upgrade_path = args.qpath
qs.sharepass = args.sharepass
qs.download_only = args.download_only
#### Set up the Qumulo REST client
log_print("Logging into Qumulo Cluster [%s] to begin upgrade process" % qs.host)
try:
qs.rc = RestClient(qs.host, 8000)
qs.rc.login(qs.user, qs.password)
log_print("Login succesful")
except:
log_print("Unable to connect to Qumulo Cluster %s via api" % qs.host)
log_print("Credentials used: username=%s, password=%s" % (
qs.user, qs.password))
print("Please correct your Qumulo credentials and try again.")
sys.exit()
revision_id = qs.rc.version.version()['revision_id']
qs.current_version = version_short(revision_id.replace("Qumulo Core ", ""))
if 'AWS' in qs.rc.cluster.list_node(1)["model_number"]:
qs.model = 'AWS'
elif 'HPApollo4200' in qs.rc.cluster.list_node(1)["model_number"]:
qs.model = 'HPE'
else:
qs.model = 'Qumulo'
if quarterly_only:
log_print("Quarterly upgrade chosen. Latest quarterly version: %s" % args.vers)
if qs.current_version == args.vers:
log_print("Current version == quarterly version == %s" % args.vers)
print("Exiting script. Will not upgrade Qumulo because it's already on latest Quarterly release.")
sys.exit()
#### Make sure our first install build version is greater than the current
if version_num(qs.current_version) >= version_num(qs.to_version):
log_print("!! Error !! Unable to upgrade")
err_msg = "Can't upgrade to %s as you're " + \
"already on or past that release (%s)."
print(err_msg % (qs.to_version, qs.current_version))
sys.exit()
log_print("Current Qumulo Core version : %s" % qs.current_version)
log_print("Upgrading to Qumulo Core version: %s" % qs.to_version)
if qs.sharepass is not None:
download_from_trends(qs)
elif qs.download_only:
print("Please specify the --sharepass argument and value.")
print("If you don't have the fileserver download password, please contact %s" % QUMULO_SUPPORT_EMAIL)
sys.exit()
if qs.download_only:
print("Exiting before upgrade as --download-only was specified")
sys.exit()
for vers in get_upgrade_list(qs):
connected = False
tries = 0
while not connected and tries < 6:
try:
qs.rc = RestClient(qs.host, 8000)
qs.rc.login(qs.user, qs.password)
connected = True
except:
exc = sys.exc_info()[1]
log_print("Qumulo API exception: %s" % exc)
log_print("Retrying in 10 seconds: %s" % exc)
time.sleep(10)
tries += 1
if not connected:
log_print("Qumulo API exception: Unable to login to Qumulo cluster %s" % qs.host)
custom_qimg = ""
if qs.model == "AWS":
custom_qimg = "cloud_aws_"
elif qs.model == "HPE" and "hpe_size" in vers:
custom_qimg = "hpe_"
qimg = '%squmulo_core_%s.qimg' % (custom_qimg, vers['version'])
log_print("Upgrading to: %s" % vers['version'])
qimg_path = '/' + qs.upgrade_path + '/' + qimg
file_exists = False
try:
attrs = qs.rc.fs.get_attr(path = qimg_path)
if int(attrs['size']) == vers["%ssize" % custom_qimg]:
file_exists = True
else:
log_print("Upgrade image %s not fully downloaded." % qimg_path)
except:
log_print("Upgrade image %s not found." % qimg_path)
if not file_exists:
print("Unable to upgrade.")
sys.exit()
resp = qs.rc.upgrade.status_get()
if resp['error_state'] != 'UPGRADE_ERROR_NO_ERROR':
log_print("!Fatal Error! " + resp['error_state'])
print("Please contact %s" % QUMULO_SUPPORT_EMAIL)
sys.exit()
log_print("Upgrading cluster with: %s" % qimg_path)
log_print("Upgrade PREPARE: %s" % vers['version'])
try:
qs.rc.upgrade.config_put(qimg_path, 'UPGRADE_TARGET_PREPARE')
except:
exc = sys.exc_info()[1]
log_print("!Fatal Error! Prepare exception: %s" % exc)
print("Please contact %s" % QUMULO_SUPPORT_EMAIL)
sys.exit()
resp = qs.rc.upgrade.status_get()
upgrade_state = resp['state']
log_print("Wait for PREPARE of %s - typically takes about a minute." % \
vers['version'])
while upgrade_state == 'UPGRADE_PREPARING':
resp = qs.rc.upgrade.status_get()
log_print("... %s for %s ..." % (resp['state'],
vers['version']))
upgrade_state = resp['state']
if upgrade_state == 'UPGRADE_PREPARED':
break
time.sleep(15)
if upgrade_state == 'UPGRADE_PREPARED':
log_print("Upgrade ARM %s - typically takes a minute or two." % \
vers['version'])
resp = qs.rc.upgrade.config_put(qimg_path, 'UPGRADE_TARGET_ARM')
else:
log_print("!Fatal Error! The upgrade state is currently " + \
"unknown. Unable to arm.")
print("Please contact %s" % QUMULO_SUPPORT_EMAIL)
sys.exit()
err_msg = "Qumulo cluster ARMed with %s. Reloading kernel via " + \
"kexec. Takes about a minute."
log_print(err_msg % vers['version'])
time.sleep(10)
version_data = None
while version_data == None:
log_print("... Loading Qumulo Core: %s ..." % \
vers['version'])
try:
#### 10 second timeout for rest client while waiting.
qs.rc = RestClient(qs.host, 8000, timeout=10)
qs.rc.login(qs.user, qs.password)
version_data = qs.rc.version.version()
version_data["revision_id"] = version_short(version_data["revision_id"])
except:
time.sleep(14)
err_msg = "Completed upgrade to %(revision_id)s, " + \
"build: %(build_id)s"
log_print(err_msg % version_data)
log_print("-" * 40)
def test_downloads(from_version, to_version):
qs = QSettings()
qs.current_version = from_version
qs.to_version = to_version
r = requests.get(TRENDS_DOMAIN + "/data/upgrade/versions/")
releases = json.loads(r.text)
dvs = get_download_versions(releases, qs)
print("downloads from: %s to: %s" % (from_version, to_version))
for dv in dvs:
print("%s %s" % (dv["version"], "skipto: " + dv["skipto"] if "skipto" in dv else ""))
print("")
def test_many_downloads():
test_downloads('2.9.0', '2.9.1')
test_downloads('2.6.8', '2.7.3')
test_downloads('2.8.9', '2.9.4')
test_downloads('2.9.0', '2.9.4')
test_downloads('2.9.1', '2.9.4')
test_downloads('2.9.2', '2.9.4')
if __name__ == "__main__":
upgrade_cluster()