Table of Contents
discoveryrule.get
Description
integer/array discoveryrule.get(object parameters)
The method allows to retrieve LLD rules according to the given parameters.
Parameters
(object) Parameters defining the desired output.
The method supports the following parameters.
| Parameter | Type | Description |
|---|---|---|
| itemids | string/array | Return only LLD rules with the given IDs. |
| groupids | string/array | Return only LLD rules that belong to the hosts from the given groups. |
| hostids | string/array | Return only LLD rules that belong to the given hosts. |
| inherited | boolean | If set to true return only LLD rules inherited from a template. |
| interfaceids | string/array | Return only LLD rules use the given host interfaces. |
| monitored | boolean | If set to true return only enabled LLD rules that belong to monitored hosts. |
| templated | boolean | If set to true return only LLD rules that belong to templates. |
| templateids | string/array | Return only LLD rules that belong to the given templates. |
| selectFilter | query | Return a filter property with data of the filter used by the LLD rule. |
| selectGraphs | query | Returns a graphs property with graph prototypes that belong to the LLD rule. Supports count. |
| selectHostPrototypes | query | Return a hostPrototypes property with host prototypes that belong to the LLD rule. Supports count. |
| selectHosts | query | Return a hosts property with an array of hosts that the LLD rule belongs to. |
| selectItems | query | Return an items property with item prototypes that belong to the LLD rule. Supports count. |
| selectTriggers | query | Return a triggers property with trigger prototypes that belong to the LLD rule. Supports count. |
| selectApplicationPrototypes | query | Return an applicationPrototypes property with application prototypes that belong to all item prototypes that belong to this LLD rule. |
| selectLLDMacroPaths | query | Return an lld_macro_paths property with a list of LLD macros and paths to values assigned to each corresponding macro. |
| selectPreprocessing | query | Return a preprocessing property with LLD rule preprocessing options.It has the following properties: type - (string) The preprocessing option type:5 - Regular expression matching; 11 - XML XPath; 12 - JSONPath; 15 - Does not match regular expression; 16 - Check for error in JSON; 17 - Check for error in XML; 20 - Discard unchanged with heartbeat; 23 - Prometheus to JSON; 24 - CSV to JSON; 25 - Replace. params - (string) Additional parameters used by preprocessing option. Multiple parameters are separated by LF (\n) character.error_handler - (string) Action type used in case of preprocessing step failure:0 - Error message is set by Zabbix server; 1 - Discard value; 2 - Set custom value; 3 - Set custom error message. error_handler_params - (string) Error handler parameters. |
| selectOverrides | query | Return an lld_rule_overrides property with a list of override filters, conditions and operations that are performed on prototype objects. |
| filter | object | Return only those results that exactly match the given filter. Accepts an array, where the keys are property names, and the values are either a single value or an array of values to match against. Supports additional filters: host - technical name of the host that the LLD rule belongs to. |
| limitSelects | integer | Limits the number of records returned by subselects. Applies to the following subselects: selectItems;selectGraphs;selectTriggers. |
| sortfield | string/array | Sort the result by the given properties. Possible values are: itemid, name, key_, delay, type and status. |
| countOutput | boolean | These parameters being common for all get methods are described in detail in the reference commentary. |
| editable | boolean | |
| excludeSearch | boolean | |
| limit | integer | |
| output | query | |
| preservekeys | boolean | |
| search | object | |
| searchByAny | boolean | |
| searchWildcardsEnabled | boolean | |
| sortorder | string/array | |
| startSearch | boolean |
Return values
(integer/array) Returns either:
- an array of objects;
- the count of retrieved objects, if the
countOutputparameter has been used.
Examples
Retrieving discovery rules from a host
Retrieve all discovery rules from host "10202".
Request:
{
"jsonrpc": "2.0",
"method": "discoveryrule.get",
"params": {
"output": "extend",
"hostids": "10202"
},
"auth": "038e1d7b1735c6a5436ee9eae095879e",
"id": 1
}Response:
{
"jsonrpc": "2.0",
"result": [
{
"itemid": "27425",
"type": "0",
"snmp_oid": "",
"hostid": "10202",
"name": "Network interface discovery",
"key_": "net.if.discovery",
"delay": "1h",
"state": "0",
"status": "0",
"trapper_hosts": "",
"error": "",
"templateid": "22444",
"params": "",
"ipmi_sensor": "",
"authtype": "0",
"username": "",
"password": "",
"publickey": "",
"privatekey": "",
"interfaceid": "119",
"description": "Discovery of network interfaces as defined in global regular expression \"Network interfaces for discovery\".",
"lifetime": "30d",
"jmx_endpoint": "",
"master_itemid": "0",
"timeout": "3s",
"url": "",
"query_fields": [],
"posts": "",
"status_codes": "200",
"follow_redirects": "1",
"post_type": "0",
"http_proxy": "",
"headers": [],
"retrieve_mode": "0",
"request_method": "0",
"ssl_cert_file": "",
"ssl_key_file": "",
"ssl_key_password": "",
"verify_peer": "0",
"verify_host": "0",
"allow_traps": "0"
},
{
"itemid": "27426",
"type": "0",
"snmp_oid": "",
"hostid": "10202",
"name": "Mounted filesystem discovery",
"key_": "vfs.fs.discovery",
"delay": "1h",
"state": "0",
"status": "0",
"trapper_hosts": "",
"error": "",
"templateid": "22450",
"params": "",
"ipmi_sensor": "",
"authtype": "0",
"username": "",
"password": "",
"publickey": "",
"privatekey": "",
"interfaceid": "119",
"description": "Discovery of file systems of different types as defined in global regular expression \"File systems for discovery\".",
"lifetime": "30d",
"jmx_endpoint": "",
"master_itemid": "0",
"timeout": "3s",
"url": "",
"query_fields": [],
"posts": "",
"status_codes": "200",
"follow_redirects": "1",
"post_type": "0",
"http_proxy": "",
"headers": [],
"retrieve_mode": "0",
"request_method": "0",
"ssl_cert_file": "",
"ssl_key_file": "",
"ssl_key_password": "",
"verify_peer": "0",
"verify_host": "0",
"allow_traps": "0"
}
],
"id": 1
}Retrieving filter conditions
Retrieve the name of the LLD rule "24681" and its filter conditions. The filter uses the "and" evaluation type, so the formula property is empty and eval_formula is generated automatically.
Request:
{
"jsonrpc": "2.0",
"method": "discoveryrule.get",
"params": {
"output": [
"name"
],
"selectFilter": "extend",
"itemids": ["24681"]
},
"auth": "038e1d7b1735c6a5436ee9eae095879e",
"id": 1
}Response:
{
"jsonrpc": "2.0",
"result": [
{
"itemid": "24681",
"name": "Filtered LLD rule",
"filter": {
"evaltype": "1",
"formula": "",
"conditions": [
{
"macro": "{#MACRO1}",
"value": "@regex1",
"operator": "8",
"formulaid": "A"
},
{
"macro": "{#MACRO2}",
"value": "@regex2",
"operator": "8",
"formulaid": "B"
},
{
"macro": "{#MACRO3}",
"value": "@regex3",
"operator": "8",
"formulaid": "C"
}
],
"eval_formula": "A and B and C"
}
}
],
"id": 1
}Retrieve LLD rule by URL
Retrieve LLD rule for host by rule URL field value. Only exact match of URL string defined for LLD rule is supported.
Request:
{
"jsonrpc": "2.0",
"method": "discoveryrule.get",
"params": {
"hostids": "10257",
"filter": {
"type": "19",
"url": "http://127.0.0.1/discoverer.php"
}
},
"id": 39,
"auth": "d678e0b85688ce578ff061bd29a20d3b"
}Response:
{
"jsonrpc": "2.0",
"result": [
{
"itemid": "28336",
"type": "19",
"snmp_oid": "",
"hostid": "10257",
"name": "API HTTP agent",
"key_": "api_discovery_rule",
"delay": "5s",
"history": "90d",
"trends": "0",
"status": "0",
"value_type": "4",
"trapper_hosts": "",
"units": "",
"error": "",
"logtimefmt": "",
"templateid": "0",
"valuemapid": "0",
"params": "",
"ipmi_sensor": "",
"authtype": "0",
"username": "",
"password": "",
"publickey": "",
"privatekey": "",
"flags": "1",
"interfaceid": "5",
"description": "",
"inventory_link": "0",
"lifetime": "30d",
"state": "0",
"jmx_endpoint": "",
"master_itemid": "0",
"timeout": "3s",
"url": "http://127.0.0.1/discoverer.php",
"query_fields": [
{
"mode": "json"
},
{
"elements": "2"
}
],
"posts": "",
"status_codes": "200",
"follow_redirects": "1",
"post_type": "0",
"http_proxy": "",
"headers": {
"X-Type": "api",
"Authorization": "Bearer mF_A.B5f-2.1JcM"
},
"retrieve_mode": "0",
"request_method": "1",
"ssl_cert_file": "",
"ssl_key_file": "",
"ssl_key_password": "",
"verify_peer": "0",
"verify_host": "0",
"allow_traps": "0"
}
],
"id": 39
}Retrieve LLD rule with overrides
Retrieve one LLD rule that has various override settings.
Request:
{
"jsonrpc": "2.0",
"method": "discoveryrule.get",
"params": {
"output": ["name"],
"itemids": "30980",
"selectOverrides": ["name", "step", "stop", "filter", "operations"]
},
"id": 39,
"auth": "d678e0b85688ce578ff061bd29a20d3b"
}Response:
{
"jsonrpc": "2.0",
"result": [
{
"name": "Discover database host"
"overrides": [
{
"name": "Discover MySQL host",
"step": "1",
"stop": "1",
"filter": {
"evaltype": "2",
"formula": "",
"conditions": [
{
"macro": "{#UNIT.NAME}",
"operator": "8",
"value": "^mysqld\\.service$"
"formulaid": "A"
},
{
"macro": "{#UNIT.NAME}",
"operator": "8",
"value": "^mariadb\\.service$"
"formulaid": "B"
}
],
"eval_formula": "A or B"
},
"operations": [
{
"operationobject": "3",
"operator": "2",
"value": "Database host",
"opstatus": {
"status": "0"
},
"optemplate": [
{
"templateid": "10170"
}
]
}
]
},
{
"name": "Discover PostgreSQL host",
"step": "2",
"stop": "1",
"filter": {
"evaltype": "0",
"formula": "",
"conditions": [
{
"macro": "{#UNIT.NAME}",
"operator": "8",
"value": "^postgresql\\.service$"
"formulaid": "A"
}
],
"eval_formula": "A"
},
"operations": [
{
"operationobject": "3",
"operator": "2",
"value": "Database host",
"opstatus": {
"status": "0"
},
"optemplate": [
{
"templateid": "10263"
}
]
}
]
}
]
}
],
"id": 39
}See also
Source
CDiscoveryRule::get() in ui/include/classes/api/services/CDiscoveryRule.php.