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Mailcow-CheckMK
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Checks for Solr status added

This commit is contained in:
Ralf Mellis 2023-09-10 15:53:13 +02:00
parent 68188b0940
commit 199f8830da
5 changed files with 124 additions and 10 deletions
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64
local/lib/python3/cmk/base/plugins/agent_based/mailcow_info.py
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@ -28,22 +28,38 @@ def discover_mailcow_info(section):
def check_mailcow_info(params, section):
for key in section:
if key == "mailcow":
# get thresholds
levels_num_domains = params["levels_num_domains"]
levels_num_mailboxes = params["levels_num_mailboxes"]
levels_num_global_messages = params["levels_num_global_messages"]
levels_solr_size_kb = params["levels_solr_size"]
# Levels for Solr size are given in KBytes, so convert it to bytes
levels_solr_size_warn = levels_solr_size_kb[0] * 1024
levels_solr_size_crit = levels_solr_size_kb[1] * 1024
levels_solr_size = (levels_solr_size_warn, levels_solr_size_crit)
levels_solr_documents = params["levels_solr_documents"]
version = section[key]["version"]
num_domains = section[key]["num_domains"]
num_mailboxes = section[key]["num_mailboxes"]
num_global_messages = section[key]["num_global_messages"]
solr_enabled = section[key]["solr_enabled"]
solr_size = section[key]["solr_size"]
solr_documents = section[key]["solr_documents"]
# create graphs for number of domains, mailboxes and messages
yield(Metric("mc_num_domains", num_domains))
yield(Metric("mc_num_mailboxes", num_mailboxes))
yield(Metric("mc_num_global_messages", num_global_messages))
yield(Metric("mc_num_domains", num_domains, levels=levels_num_domains))
yield(Metric("mc_num_mailboxes", num_mailboxes, levels=levels_num_mailboxes))
yield(Metric("mc_num_global_messages", num_global_messages, levels=levels_num_global_messages))
# create graphs for solr size and number of solr documents
if solr_enabled:
yield(Metric("mc_solr_size", solr_size, levels=levels_solr_size))
yield(Metric("mc_solr_documents", solr_documents, levels=levels_solr_documents))
# create overall result
summary = f"Version is {version}"
details = f"Mailcow version: {version}\nNumber of domains: {num_domains}\nNumber of mailboxes: {num_mailboxes}\nNumber of messages: {num_global_messages}\n"
details = f"Mailcow version: {version}\nNumber of domains: {num_domains}\nNumber of mailboxes: {num_mailboxes}\nNumber of messages: {num_global_messages}\n\nSolr size: {render.bytes(solr_size)}\nNumber of Solr documents: {solr_documents}"
yield Result(state=State.OK, summary=summary, details=details)
# Create result for number of domains
@ -66,7 +82,27 @@ def check_mailcow_info(params, section):
notice = f"Number of messages: {num_global_messages}"
if state != State.OK:
yield(Result(state=state, notice=notice))
# Create result for solr size and solr number of documents
if solr_enabled:
warn, crit = levels_solr_size
# levels are given in KB, so convert the size given Bytes
solr_size = solr_size / 1024
state = getStateUpper((warn, crit), solr_size)
notice = f"Solr size: {render.bytes(solr_size)}"
if state != State.OK:
yield(Result(state=state, notice=notice))
warn, crit = levels_solr_documents
state = getStateUpper((warn, crit), solr_documents)
notice = f"Number of Solr documents: {solr_documents}"
if state != State.OK:
yield(Result(state=state, notice=notice))
else:
state = State.WARN
notice = f"Solr is disabled"
yield(Result(state=state, notice=notice))
def parse_mailcow_info_section(string_table):
parsed_data = {
@ -78,10 +114,26 @@ def parse_mailcow_info_section(string_table):
num_domains = int(line[1])
num_mailboxes = int(line[2])
num_global_messages = int(line[3])
solr_enabled = bool(line[4])
# solr size comes with value and unit, unfortunately
solr_size_str = line[5]
solr_size_list = solr_size_str.split()
solr_size_unit = solr_size_list[1]
solr_size = float(solr_size_list[0])
if solr_size_unit == "KB":
solr_size = solr_size * 1024.0
elif solr_size_unit == "MB":
solr_size = solr_size * 1024.0 * 1024.0
elif solr_size_unit == "GB":
solr_size = solr_size * 1024.0 * 1024.0 * 1024.0
solr_documents = int(line[6])
parsed_data["mailcow"]["version"] = version
parsed_data["mailcow"]["num_domains"] = num_domains
parsed_data["mailcow"]["num_mailboxes"] = num_mailboxes
parsed_data["mailcow"]["num_global_messages"] = num_global_messages
parsed_data["mailcow"]["solr_enabled"] = solr_enabled
parsed_data["mailcow"]["solr_size"] = solr_size
parsed_data["mailcow"]["solr_documents"] = solr_documents
return parsed_data
@ -100,6 +152,8 @@ register.check_plugin(
"levels_num_domains": (100, 200),
"levels_num_mailboxes": (500, 1000),
"levels_num_global_messages": (100000, 250000),
"levels_solr_size": (4096.0, 8192.0),
"levels_solr_documents": (2000, 4000)
},
check_ruleset_name="mailcow_info",
)

24
local/share/check_mk/agents/special/agent_mailcow
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@ -217,6 +217,23 @@ def getMailcowInfo(headers, verify, base_url):
sys.stderr.write(f"Request response code is {response.status_code} with URL {url}\n")
sys.exit(1)
def getSolrInfo(headers, verify, base_url):
url = f"{base_url}/status/solr"
response = requests.get(url, headers=headers, verify=verify)
if (response.status_code == 200):
jsdata = response.text
data = json.loads(jsdata) # returns a dictionary
#pprint(data)
# get Solr infos
solr_enabled = data["solr_enabled"]
solr_size = data["solr_size"]
solr_documents = data["solr_documents"]
return solr_enabled, solr_size, solr_documents
else:
sys.stderr.write(f"Request response code is {response.status_code} with URL {url}\n")
sys.exit(1)
'''
Output is as follows:
0 mailbox name email address used for login
@ -257,11 +274,11 @@ def doCmkOutputMailboxes():
print(f"{mb};{active};{created};{modified};{name};{num_messages};{percent_in_use};{quota};{quota_used};{last_imap_login};{last_pop3_login};{last_smtp_login}")
def doCmkOutputMailcow(version, num_domains, num_mailboxes, num_global_messages):
def doCmkOutputMailcow(version, num_domains, num_mailboxes, num_global_messages, solr_enabled, solr_size, solr_documents):
print("<<<mailcow_info:sep(59)>>>")
# strip semicolons, if present, since we use it as delimiter
version = version.replace(";", "")
print(f"{version};{num_domains};{num_mailboxes};{num_global_messages}")
print(f"{version};{num_domains};{num_mailboxes};{num_global_messages};{solr_enabled};{solr_size};{solr_documents}")
'''
@ -355,11 +372,12 @@ def main():
# get mailbox data
num_mailboxes, num_global_messages = getMailboxInfo(headers, verify, base_url)
# get global Mailcow info
solr_enabled, solr_size, solr_documents = getSolrInfo(headers, verify, base_url)
mailcow_version = getMailcowInfo(headers, verify, base_url)
# create agent output
doCmkOutputDomains()
doCmkOutputMailboxes()
doCmkOutputMailcow(mailcow_version, num_domains, num_mailboxes, num_global_messages)
doCmkOutputMailcow(mailcow_version, num_domains, num_mailboxes, num_global_messages, solr_enabled, solr_size, solr_documents)
if __name__ == "__main__":

4
local/share/check_mk/checkman/mailcow_info
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@ -12,6 +12,8 @@ description:
Shows several information about a Mailcow instance, e.g. number of domains/mailboxes/messages.
The check will raise WARN/CRIT if the number of domains is above the configurable levels.
The check will raise WARN/CRIT if the number of mailboxes is above the configurable levels.
The check will raise WARN/CRIT if the number of messages is above the configurable levels.
The check will raise WARN/CRIT if the number of messages is above the configurable levels.
The check will raise WARN/CRIT if the solr size is above the configurable levels.
The check will raise WARN/CRIT if the number of solr documents is above the configurable levels.
inventory:
one service is created (with several details)

12
local/share/check_mk/web/plugins/metrics/mailcow_metrics.py
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@ -69,4 +69,16 @@ metric_info["mailcow_mailboxes_messages"] = {
"title": _("Number of Messages"),
"unit": "count",
"color": "24/b",
}
metric_info["mc_solr_size"] = {
"title": _("Solr Size"),
"unit": "bytes",
"color": "24/b",
}
metric_info["mc_solr_documents"] = {
"title": _("Number of Solr Documents"),
"unit": "count",
"color": "24/a",
}

30
local/share/check_mk/web/plugins/wato/mailcow_info_rules.py
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@ -56,6 +56,34 @@ def _parameter_spec_mailcow_info():
)
],
)),
("levels_solr_size", Tuple(
title=_("Solr size"),
elements=[
Float(
title=_("Warning at"),
default_value=4096.0,
unit="KBytes",
),
Float(
title=_("Critical at"),
default_value=8192.0,
unit="KBytes",
)
],
)),
("levels_solr_documents", Tuple(
title=_("Number of Solr documents"),
elements=[
Integer(
title=_("Warning at"),
default_value=2000,
),
Integer(
title=_("Critical at"),
default_value=4000,
)
],
)),
],
)
@ -65,6 +93,6 @@ rulespec_registry.register(
group=RulespecGroupCheckParametersApplications,
match_type="dict",
parameter_valuespec=_parameter_spec_mailcow_info,
title=lambda: _("Mailcow Info"),
title=lambda: _("Levels for Mailcow info"),
)
)