The alloy loki ingestion issues with xpath query. Syntax appears to be wrong

Issues with xpath query syntax and service will not start

// Prometheus exporter for Alloy’s own metrics
prometheus.exporter.self “integrations_alloy” { }

// Relabel Alloy metrics
discovery.relabel “integrations_alloy” {
targets = prometheus.exporter.self.integrations_alloy.targets

rule {
target_label = “instance”
replacement = constants.hostname
}

rule {
target_label = “alloy_hostname”
replacement = constants.hostname
}

rule {
target_label = “job”
replacement = “integrations/alloy-check”
}
}

// Scrape Alloy metrics
prometheus.scrape “integrations_alloy” {
targets = discovery.relabel.integrations_alloy.output
forward_to = [prometheus.relabel.integrations_alloy.receiver]
scrape_interval = “60s”
}

// Relabel Alloy metrics before remote write
prometheus.relabel “integrations_alloy” {
forward_to = [prometheus.remote_write.metrics_service.receiver]

rule {
source_labels = [“name”]
regex = “.*”
action = “keep”
}
}

// Windows exporter for system metrics with service filtering
prometheus.exporter.windows “integrations_windows_exporter” {
enabled_collectors = [“ad”, “dns”, “cpu”, “cs”, “logical_disk”, “net”, “os”, “service”, “system”, “time”, “diskdrive”, “tcp”, “memory”, “cpu_info”, “Service”, “Process”, “terminal_services”]
service {
where_clause = “Name = ‘Dnscache’ OR Name = ‘WinRM’ OR Name = ‘wuauserv’”
}
}

// Relabel Windows exporter metrics
discovery.relabel “integrations_windows_exporter” {
targets = prometheus.exporter.windows.integrations_windows_exporter.targets

rule {
target_label = “job”
replacement = “integrations/windows_exporter”
}

rule {
target_label = “instance”
replacement = constants.hostname
}
}

// Scrape Windows exporter metrics
prometheus.scrape “integrations_windows_exporter” {
targets = discovery.relabel.integrations_windows_exporter.output
forward_to = [prometheus.relabel.integrations_windows_exporter.receiver]
job_name = “integrations/windows_exporter”
}

// Relabel Windows exporter metrics before remote write
prometheus.relabel “integrations_windows_exporter” {
forward_to = [prometheus.remote_write.metrics_service.receiver]

rule {
source_labels = [“name”]
regex = “.*”
action = “keep”
}
}

// Process Security logs
loki.process “logs_integrations_windows_exporter_security” {
forward_to = [loki.write.grafana_cloud_loki.receiver]

stage.json {
expressions = {
level = “levelText”,
source = “source”,
logon_type = “EventData.LogonType”, // Updated to access nested field
}
}

stage.drop {
expression = “^3$” // Use regex for exact match
source = “logon_type”
}

stage.labels {
values = {
logon_type = “logon_type”,
username = “username”,
hostname = “hostname”,
timestamp = “timestamp”,
}
}

}

// Relabel Security logs
loki.relabel “logs_integrations_windows_exporter_security” {
forward_to = [loki.process.logs_integrations_windows_exporter_security.receiver]

rule {
source_labels = [“computer”]
target_label = “agent_hostname”
}
}

// Collect Security logs (no EventID filter)
loki.source.windowsevent “logs_integrations_windows_exporter_security” {
locale = 1033
eventlog_name = “Security”
bookmark_path = “./bookmarks-sec.xml”
poll_interval = “5s”
use_incoming_timestamp = true
//xpath_query = “[System[((EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘2’) or (EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘5’) or (EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘10’)) or (EventID=4625 and (EventData/Data[@Name=‘LogonType’]=‘2’ or EventData/Data[@Name=‘LogonType’]=‘5’ or EventData/Data[@Name=‘LogonType’]=‘10’))]]"
//xpath_query = "
[System[(EventID=4624 or EventID=4625)] and EventData[Data[@Name=‘LogonType’]=‘2’ or Data[@Name=‘LogonType’]=‘5’ or Data[@Name=‘LogonType’]=‘10’]]”
//xpath_query = “[System[(EventID=4624 and EventData[Data[@Name=‘LogonType’]=‘2’ or Data[@Name=‘LogonType’]=‘5’ or Data[@Name=‘LogonType’]=‘10’]) or (EventID=4625)]]"
xpath_query = "
[System[(EventID=4624 and (EventData/Data[@Name=‘LogonType’]=‘2’ or EventData/Data[@Name=‘LogonType’]=‘5’ or EventData/Data[@Name=‘LogonType’]=‘10’)) or (EventID=4625 and not(EventData/Data[@Name=‘Status’]=‘0xC000006D’ or EventData/Data[@Name=‘SubStatus’]=‘0xC000006A’))]]”

forward_to = [loki.relabel.logs_integrations_windows_exporter_security.receiver]
labels = {
instance = constants.hostname,
job = “integrations/windows_exporter”,
}
}

// Process logs to add EventID and other labels
loki.process “enrich” {
stage.labels {
values = {
logon_type = “logon_type”,
username = “username”,
hostname = “hostname”,
timestamp = “timestamp”,
}
}

forward_to = [loki.write.grafana_cloud_loki.receiver]
}

// Remote write to Prometheus/Mimir
prometheus.remote_write “metrics_service” {
endpoint {
url = “http://192.168.1.106:9009/api/v1/push
headers = {
“X-Scope-OrgID” = “anonymous”,
}
}
}

// Write to Loki
loki.write “grafana_cloud_loki” {
endpoint {
url = “http://192.168.1.106:3100/loki/api/v1/push
}
}

It looks like you're encountering issues with the XPath query syntax in your Grafana Alloy configuration for collecting Windows Event Logs. Let's address the potential problems and provide some guidance on how to correct them.

Common Issues with XPath Queries

  1. Syntax Errors: Ensure that your XPath syntax is correct. XPath queries are sensitive to syntax errors, especially with brackets and quotes.

  2. Logical Operators: Ensure that logical operators like and, or, and not are used correctly within the XPath expression.

  3. Attribute Access: When accessing attributes, ensure that the syntax is correct. For example, EventData/Data[@Name='LogonType'] is the correct way to access the LogonType attribute.

  4. EventID Filtering: Ensure that the EventID filtering logic is correctly structured. Each condition should be properly enclosed within brackets.

Suggested XPath Query

Based on your configuration, here's a refined version of your XPath query:

xpath_query = "*[System[(EventID=4624 and (EventData/Data[@Name='LogonType']='2' or EventData/Data[@Name='LogonType']='5' or EventData/Data[@Name='LogonType']='10')) or (EventID=4625 and not(EventData/Data[@Name='Status']='0xC000006D' or EventData/Data[@Name='SubStatus']='0xC000006A'))]]"

Key Points

  • Brackets: Ensure that each logical condition is properly enclosed in brackets.
  • Quotes: Use single quotes for attribute values within the XPath expression.
  • Logical Conditions: Ensure that the logical conditions are correctly structured and combined using and, or, and not.

Debugging Tips

  • Test Incrementally: Start with a simpler XPath query and gradually add complexity. This helps isolate the part of the query causing issues.
  • Use Tools: Consider using an XPath testing tool to validate your query syntax before applying it in your configuration.
  • Logs: Check the logs for any error messages that might provide more context on what is going wrong.

If you continue to experience issues, please provide any error messages or logs that might help diagnose the problem further.

grot is still learning and improving, please let me know how I did by reacting below.

👍🏽 or 👎🏽

Error: C:\Program Files\GrafanaLabs\Alloy\config.alloy:127:1: Failed to build component: building component: error subscribing to windows events: The specified query is invalid.

126 | // Collect Security logs (no EventID filter)
127 | loki.source.windowsevent “logs_integrations_windows_exporter_security” {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
128 | | locale = 1033
129 | | eventlog_name = “Security”
130 | | bookmark_path = “./bookmarks-sec.xml”
131 | | poll_interval = “5s”
132 | | use_incoming_timestamp = true
133 | | //xpath_query = “[System[((EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘2’) or (EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘5’) or (EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘10’)) or (EventID=4625 and (EventData/Data[@Name=‘LogonType’]=‘2’ or EventData/Data[@Name=‘LogonType’]=‘5’ or EventData/Data[@Name=‘LogonType’]=‘10’))]]"
134 | | //xpath_query = "
[System[(EventID=4624 or EventID=4625)] and EventData[Data[@Name=‘LogonType’]=‘2’ or Data[@Name=‘LogonType’]=‘5’ or Data[@Name=‘LogonType’]=‘10’]]”
135 | | //xpath_query = “[System[(EventID=4624 and EventData[Data[@Name=‘LogonType’]=‘2’ or Data[@Name=‘LogonType’]=‘5’ or Data[@Name=‘LogonType’]=‘10’]) or (EventID=4625)]]"
136 | | xpath_query = "
[System[(EventID=4624 and (EventData/Data[@Name=‘LogonType’]=‘2’ or EventData/Data[@Name=‘LogonType’]=‘5’ or EventData/Data[@Name=‘LogonType’]=‘10’)) or (EventID=4625 and not(EventData/Data[@Name=‘Status’]=‘0xC000006D’ or EventData/Data[@Name=‘SubStatus’]=‘0xC000006A’))]]”
137 | | forward_to = [loki.relabel.logs_integrations_windows_exporter_security.receiver]
138 | | labels = {
139 | | instance = constants.hostname,
140 | | job = “integrations/windows_exporter”,
141 | | }
142 | | }
| |
^
143 |

It seems like you're encountering issues with the XPath query syntax in your Grafana Alloy configuration for collecting Windows Event Logs. Let's address the potential problems and provide some guidance on how to correct them.

Common Issues with XPath Queries

  1. Syntax Errors: Ensure that your XPath syntax is correct. XPath queries are sensitive to syntax errors, especially with brackets and quotes.
  2. Logical Operators: Ensure that logical operators like and, or, and not are used correctly within the XPath expression.
  3. Attribute Access: When accessing attributes, ensure that the syntax is correct. For example, EventData/Data[@Name='LogonType'] is the correct way to access the LogonType attribute.
  4. EventID Filtering: Ensure that the EventID filtering logic is correctly structured. Each condition should be properly enclosed within brackets.

Suggested XPath Query

Based on your configuration, here's a refined version of your XPath query:

xpath_query = "*[System[(EventID=4624 and (EventData/Data[@Name='LogonType']='2' or EventData/Data[@Name='LogonType']='5' or EventData/Data[@Name='LogonType']='10')) or (EventID=4625 and not(EventData/Data[@Name='Status']='0xC000006D' or EventData/Data[@Name='SubStatus']='0xC000006A'))]]"

Key Points

  • Brackets: Ensure that each logical condition is properly enclosed in brackets.
  • Quotes: Use single quotes for attribute values within the XPath expression.
  • Logical Conditions: Ensure that the logical conditions are correctly structured and combined using and, or, and not.

Debugging Tips

  • Test Incrementally: Start with a simpler XPath query and gradually add complexity. This helps isolate the part of the query causing issues.
  • Use Tools: Consider using an XPath testing tool to validate your query syntax before applying it in your configuration.
  • Logs: Check the logs for any error messages that might provide more context on what is going wrong.

If you continue to experience issues, please provide any error messages or logs that might help diagnose the problem further.

grot is still learning and improving, please let me know how I did by reacting below.

👍🏽 or 👎🏽

Error: C:\Program Files\GrafanaLabs\Alloy\config.alloy:127:1: Failed to build component: building component: error subscribing to windows events: The specified query is invalid.

126 | // Collect Security logs (no EventID filter)
127 | loki.source.windowsevent “logs_integrations_windows_exporter_security” {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
128 | | locale = 1033
129 | | eventlog_name = “Security”
130 | | bookmark_path = “./bookmarks-sec.xml”
131 | | poll_interval = “5s”
132 | | use_incoming_timestamp = true
133 | | //xpath_query = “[System[((EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘2’) or (EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘5’) or (EventID=4624 and EventData/Data[@Name=‘LogonType’]=‘10’)) or (EventID=4625 and (EventData/Data[@Name=‘LogonType’]=‘2’ or EventData/Data[@Name=‘LogonType’]=‘5’ or EventData/Data[@Name=‘LogonType’]=‘10’))]]"
134 | | //xpath_query = "
[System[(EventID=4624 or EventID=4625)] and EventData[Data[@Name=‘LogonType’]=‘2’ or Data[@Name=‘LogonType’]=‘5’ or Data[@Name=‘LogonType’]=‘10’]]”
135 | | //xpath_query = “[System[(EventID=4624 and EventData[Data[@Name=‘LogonType’]=‘2’ or Data[@Name=‘LogonType’]=‘5’ or Data[@Name=‘LogonType’]=‘10’]) or (EventID=4625)]]"
136 | | xpath_query = "
[System[(EventID=4624 and (EventData/Data[@Name=‘LogonType’]=‘2’ or EventData/Data[@Name=‘LogonType’]=‘5’ or EventData/Data[@Name=‘LogonType’]=‘10’)) or (EventID=4625 and not(EventData/Data[@Name=‘Status’]=‘0xC000006D’ or EventData/Data[@Name=‘SubStatus’]=‘0xC000006A’))]]”
137 | | forward_to = [loki.relabel.logs_integrations_windows_exporter_security.receiver]
138 | | labels = {
139 | | instance = constants.hostname,
140 | | job = “integrations/windows_exporter”,
141 | | }
142 | | }
| |
^
143 |

It seems like you're encountering issues with the XPath query syntax in your Grafana Alloy configuration for collecting Windows Event Logs. Let's address the potential problems and provide some guidance on how to correct them.

Common Issues with XPath Queries

  1. Syntax Errors: Ensure that your XPath syntax is correct. XPath queries are sensitive to syntax errors, especially with brackets and quotes.
  2. Logical Operators: Ensure that logical operators like and, or, and not are used correctly within the XPath expression.
  3. Attribute Access: When accessing attributes, ensure that the syntax is correct. For example, EventData/Data[@Name='LogonType'] is the correct way to access the LogonType attribute.
  4. EventID Filtering: Ensure that the EventID filtering logic is correctly structured. Each condition should be properly enclosed within brackets.

Suggested XPath Query

Based on your configuration, here's a refined version of your XPath query:

xpath_query = "*[System[(EventID=4624 and (EventData/Data[@Name='LogonType']='2' or EventData/Data[@Name='LogonType']='5' or EventData/Data[@Name='LogonType']='10')) or (EventID=4625 and not(EventData/Data[@Name='Status']='0xC000006D' or EventData/Data[@Name='SubStatus']='0xC000006A'))]]"

Key Points

  • Brackets: Ensure that each logical condition is properly enclosed in brackets.
  • Quotes: Use single quotes for attribute values within the XPath expression.
  • Logical Conditions: Ensure that the logical conditions are correctly structured and combined using and, or, and not.

Debugging Tips

  • Test Incrementally: Start with a simpler XPath query and gradually add complexity. This helps isolate the part of the query causing issues.
  • Use Tools: Consider using an XPath testing tool to validate your query syntax before applying it in your configuration.
  • Logs: Check the logs for any error messages that might provide more context on what is going wrong.

If you continue to experience issues, please provide any error messages or logs that might help diagnose the problem further. This will help in pinpointing the exact issue with the XPath query.

grot is still learning and improving, please let me know how I did by reacting below.

👍🏽 or 👎🏽