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Using the Regex Query Option, you filter the list of options returned by the Variable query or modify the options returned. For more information, refer to the Mozilla guide on Regular expressions. Examples of filtering on the following list of options: backend_01 backend_02 backend_03 backend_04. Text.

Query examples. Some useful query examples here. Log Query examples Examples that filter on IP address. Return log lines that are not within a range of IPv4 addresses: {job_name="myapp"} != ip("192.168.4.5-192.168.4.20") This example matches log lines with all IPv4 subnet values 192.168.4.5/16 except IP address 192.168.4.2:

Hello, updated our old Grafana to 7.4 and more then half of the things we had broke. In the rebuild process, I'm struggling with matching ...

For example a variable used in a regex expression in an InfluxDB or Prometheus query will be regex escaped. Read the data source specific documentation. Filter ...

regex stage. The regex stage is a parsing stage that parses a log line using a regular expression. Named capture groups in the regex support adding data into the extracted map. Schema regex: # The RE2 regular expression. Each capture group must be named. expression: <string> # Name from extracted data to parse. If empty, uses the log message.

09.05.2017 · I would like populate values for variable in templating using query (a datasource: Prometheus). I know that I can use structure like: label_values({job="nodes"},instance) and I received something like: node1.example.com:9100, node2.example.com:9100, etc. But I would like receive only the FQDN (without a collon and a port number) . Probably I can use for that the …

Grafana displays the Identifier field, followed by the fields returned by your query. You can apply filters in one of two ways: Enter a regex expression. Click a field to toggle filtering on that field. Filtered fields are displayed with dark gray text, unfiltered fields have white text. In the example below, I removed the Min field from the ...

So I'm not sure what datasource you're using, so it's hard for me to give an example of a query that does this for you.

24.05.2017 · I tried to exclude some hostname from the templating output. Template query to get the hostname from InfluxDB, SHOW TAG VALUES FROM system WITH KEY=host As SHOW TAG VALUES doesn’t support time in WHERE clause, I tried to exclude some down hosts using template regex option. Can you help me , how to exclude below hosts on templating regex …

You can build graphs with lots of items using Regular Expressions inside metric field. Grafana uses JavaScript regex implementation. For example, if you ...

In Alias or regex Type or select a series. Click in the field to see a list of available series. Example: /Network.*/ would match two series ...

I found a solution with [[var_name]] syntax, but it was called deprecated here https://github.com/grafana/grafana/issues/1264

Regex: /.*instance="([^"]*).*/. Regex. Result: demo.robustperception.io:9090 demo.robustperception.io:9093 ...

But, you can use the regex field inside Grafana. This will work for any datasource. Here I'm using Prometheus, but again the actual query and datasource does not matter. So for example, say I have a query returning container IDs: And I only wanted the container IDs that ended with the letter "b". I could enter the /b$/ regex to match results ...