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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# listallcasservercachestatus.py
# February 2020
#
# Usage:
# listallcasservercachestatus.py [--noheader] [-d]
#
# Examples:
#
# 1. Return list of CAS_DISK_CACHE usage on all CAS servers
# ./listallcasservercachestatus.py
#
# Copyright © 2020, SAS Institute Inc., Cary, NC, USA. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the License);
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
debug=False
# Import Python modules
from tabulate import tabulate # pip install tabulate
import argparse
import swat # pip install swat
import sys
from sharedfunctions import callrestapi
parser = argparse.ArgumentParser()
parser.add_argument("--noheader", action='store_true', help="Do not print the header row")
parser.add_argument("-d","--debug", action='store_true', help="Debug")
args = parser.parse_args()
noheader=args.noheader
debug=args.debug
# Print header row unless noheader argument was specified
if not noheader:
print('server,host-or-ip,port,restPort, [table]')
endpoint='/casManagement/servers'
method='get'
#make the rest call
serverlist_result_json=callrestapi(endpoint,method)
if debug:
print(serverlist_result_json)
print('serverlist_result_json is a '+type(serverlist_result_json).__name__+' object') #serverlist_result_json is a dictionary
servers = serverlist_result_json['items']
for server in servers:
servername=server['name']
serverhost=server['host']
serverport=server['port']
serverrest=server['restPort']
print(servername+','+serverhost+','+str(serverport)+','+str(serverrest))
# connect to each CAS server
s = swat.CAS(serverhost, serverport)
# TLS relies on env var $CAS_CLIENT_SSL_CA_LIST=/opt/sas/viya/config/etc/SASSecurityCertificateFramework/cacerts/vault-ca.crt (or local location)
# else "ERROR: SSL Error: Missing CA trust list"
# get CAS_DISK_CACHE usage
s.accessControl.assumeRole(adminRole="superuser") # superuser role reqd
results = s.builtins.getCacheInfo # returns dictionary and table
# display table with CAS_DISK_CACHE usage stats
print(tabulate(results,headers='firstrow'))