280 lines
9.5 KiB
Python
280 lines
9.5 KiB
Python
#!/usr/bin/env python3
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import getopt
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import sys
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import random
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import os
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"""
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Sample output
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<<<hal9001_status:sep(59)>>>
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ok;SK-1st-Edition 1965-12-17;arthur;127.0.0.1
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1. Status, possible values: ok, update available, storage down (String)
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2. Version (String)
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3. Username used for login (String)
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4. IP used for access (String)
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<<<hal9001_users:sep(59)>>>
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user1;David Bowman;65536.0;262144.0
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user2;Frank Poole;16384.0;131072.0
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user3;Elena;32768.0;65536.0
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1. User ID (string)
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2. User Real Name (string)
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3. Quota Used (float in bytes, absolut)
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4. Quota Max (float in bytes, absolut)
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<<<hal9001_storages:sep(59)>>>
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storage1;DATA_Dullea;8192.0;262144.0
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storage2;DATA_Poole;2048.0;131072.0
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1. Storage ID (string)
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2. Storage Custom Name (string)
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3. Upload (float in bytes, counter)
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4. Download (float in bytes, counter)
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"""
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def showUsage():
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sys.stderr.write("""HAL9001 Special Agent
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USAGE: agent_hal9001 -H [hostname] -u [username] -p [password]
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agent_hal9001 -h
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OPTIONS:
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-H, --hostname Hostname (FQDN or IP) of HAL System
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-u, --username Username
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-p, --password Password
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-h, --help Show this help message and exit
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""")
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# Parameters coming from CheckMK
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opt_hostname = ""
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opt_username = ""
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opt_password = ""
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# Base values for randomly calculating the use of the storage system per user
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base_usage = float(65536 * 8) # 0.5 MByte
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max_quota = 1073741824.0 # 1 GByte
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# these dicts are used as starting points, feel free to extend and/or adjust them
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# each user/storage results in an additional service
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users_dict = {
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"user1": {
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"realname": "David Bowman",
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"usage": base_usage*2,
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"quota_max": max_quota
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},
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"user2": {
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"realname": "Frank Poole",
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"usage": base_usage*3,
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"quota_max": max_quota/2
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},
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"user3": {
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"realname": "Elena",
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"usage": base_usage*4,
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"quota_max": max_quota*2
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}
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}
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storages_dict = {
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"storage1": {
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"realname": "DATA_Dullea",
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"download": float(1024**3),
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"upload": float((1024**2) * 6)
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},
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"storage2": {
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"realname": "DATA_Poole",
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"download": float(1024**3),
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"upload": float((1024**2) * 4)
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}
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}
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hal_status_list = ["ok", "update available", "storage down"]
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hal_version = "SK-1st-Edition 1965-12-17"
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short_options = 'hH:u:p:'
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long_options = [
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'hostname=', 'username=', 'password=', 'help'
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]
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def getOptions():
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global opt_hostname
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global opt_username
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global opt_password
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opts, args = getopt.getopt(sys.argv[1:], short_options, long_options)
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for opt, arg in opts:
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if opt in ['-H', '--hostname']:
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opt_hostname = arg
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if opt in ['-u', '--username']:
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opt_username = arg
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elif opt in ['-p', '--password']:
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opt_password = arg
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elif opt in ['-h', '--help']:
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showUsage()
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sys.exit(0)
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def showOptions():
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print(f"Hostname: {opt_hostname}")
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print(f"Username: {opt_username}")
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print(f"Password: {opt_password}")
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def calculateNewUserStorage(current_storage):
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# let the chance that no change occured be at 90%
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no_change = random.randint(1, 100)
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if no_change > 10:
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return float(current_storage)
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else:
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# create some variance, value of "amount" is interpreted in bytes
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factor = random.randint(1,4)
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amount = random.randint(1024000, 4096000)
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amount *= factor
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# increase or decrease, give increase a better chance (60:40), that's more real :-)
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plus_or_minus = random.randint(1,100)
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if plus_or_minus > 40:
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new_storage = current_storage + amount
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else:
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new_storage = current_storage - amount
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# avoid negative values
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if new_storage < 0:
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new_storage = 1024000
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return float(new_storage)
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def calculateNewStorageCounters(ul_bytes, dl_bytes):
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# let the chance that no change occured be at 2%
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no_change = random.randint(1, 100)
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if no_change > 98:
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return float(ul_bytes), float(dl_bytes)
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else:
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# create some variance, values of "amount_<ul|dl>" is interpreted in bytes
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factor_ul = random.randint(1,7)
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amount_ul = random.randint(20240000, 50960000)
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amount_ul *= factor_ul
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factor_dl = random.randint(1,14)
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amount_dl = random.randint(30240000, 60960000)
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amount_dl *= factor_dl
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# we are simulating counters, so only increasing makes sense
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new_ul_bytes = ul_bytes + amount_ul
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new_dl_bytes = dl_bytes + amount_dl
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return float(new_ul_bytes), float(new_dl_bytes)
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def doCmkHalStatusOutput(status, version, username, ipaddress):
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print("<<<hal9001_status:sep(59)>>>")
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print(f"{status};{version};{username};{ipaddress}")
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def doCmkHalUsersOutput(users, hostname):
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print("<<<hal9001_users:sep(59)>>>")
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home_path = os.getenv("HOME")
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tmp_path = f"{home_path}/tmp"
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for user in users:
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# we need a way to store the current value for storage usage between runs of the agent
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help_file = f"{tmp_path}/hal9001_{hostname}_{user}_current_storage.txt"
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if os.path.exists(help_file):
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# help file exists, so get the content
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with open(help_file, "r") as file:
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current_storage = float(file.read())
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else:
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# help file does not exist, create it and store the start value in it
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with open(help_file, "w") as file:
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file.write(str(users[user]["usage"]))
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current_storage = users[user]["usage"]
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realname = users[user]["realname"]
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quota_max = users[user]["quota_max"]
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# simulate changes in storage usage
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new_storage = calculateNewUserStorage(current_storage)
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# save the new value in help file
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with open(help_file, "w") as file:
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file.write(str(new_storage))
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# create output
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print(f"{user};{realname};{new_storage};{quota_max}")
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def doCmkHalStoragesOutput(storages, hostname):
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print("<<<hal9001_storages:sep(59)>>>")
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home_path = os.getenv("HOME")
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tmp_path = f"{home_path}/tmp"
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for storage in storages:
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# we need a way to store the current values for storage usage between runs of the agent
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# so we can simulate counters for uploaded/downloaded bytes
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help_file_ul = f"{tmp_path}/hal9001_{hostname}_{storage}_ul_bytes.txt"
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help_file_dl = f"{tmp_path}/hal9001_{hostname}_{storage}_dl_bytes.txt"
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if os.path.exists(help_file_ul):
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# help file exists, so get the content
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with open(help_file_ul, "r") as file:
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current_ul_bytes = float(file.read())
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else:
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# help file does not exist, create it and store the start value in it
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with open(help_file_ul, "w") as file:
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file.write(str(storages[storage]["upload"]))
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current_ul_bytes = storages[storage]["upload"]
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if os.path.exists(help_file_dl):
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# help file exists, so get the content
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with open(help_file_dl, "r") as file:
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current_dl_bytes = float(file.read())
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else:
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# help file does not exist, create it and store the start value in it
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with open(help_file_dl, "w") as file:
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file.write(str(storages[storage]["download"]))
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current_dl_bytes = storages[storage]["download"]
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realname = storages[storage]["realname"]
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# simulate changes in storage usage
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new_ul_bytes, new_dl_bytes = calculateNewStorageCounters(current_ul_bytes, current_dl_bytes)
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# save the new values in help files
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with open(help_file_ul, "w") as file:
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file.write(str(new_ul_bytes))
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with open(help_file_dl, "w") as file:
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file.write(str(new_dl_bytes))
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# create output
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print(f"{storage};{realname};{new_ul_bytes};{new_dl_bytes}")
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def getStatus():
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# randomly set one of the three available states
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status_index = random.randint(1,100)
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if status_index <= 5:
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# should result in critical state
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hal_status = hal_status_list[2]
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elif status_index <= 15:
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# should result in warning state
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hal_status = hal_status_list[1]
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else:
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# should result in ok state
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hal_status = hal_status_list[0]
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return hal_status, hal_version
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def doLogin(hostname, username, password):
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# simulate the login to our HAL system
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# give it a chance of 2% to fail to demonstrate an error from time to time
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success = random.randint(1, 100)
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if success > 2:
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return True, 200
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else:
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return False, 404
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def main():
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getOptions()
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#showOptions()
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# some checks
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# keep in mind: the 1st line printed out to std.err will be shown as check result in CheckMK
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if (opt_hostname == ""):
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sys.stderr.write(f"No hostname given.\n")
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showUsage()
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sys.exit(1)
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if (opt_username == ""):
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sys.stderr.write(f"No username given.\n")
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showUsage()
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sys.exit(1)
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if (opt_password == ""):
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sys.stderr.write(f"No password given.\n")
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showUsage()
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sys.exit(1)
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success, code = doLogin(opt_hostname, opt_username, opt_password)
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if success:
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status, version = getStatus()
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doCmkHalStatusOutput(status, version, opt_username, opt_hostname)
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doCmkHalUsersOutput(users_dict, opt_hostname)
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doCmkHalStoragesOutput(storages_dict, opt_hostname)
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else:
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sys.stderr.write(f"Login to {opt_hostname} with user {opt_username} failed with error code {code}\n")
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sys.exit(1)
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if __name__ == "__main__":
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main() |