Promtail syslog regex. Pipe data I am collecting logs using rsyslog from about 5000 servers. A step-by-step guide to deploying Grafana Loki as a The --inspect flag should not be used in production, as the calculation of changes between pipeline stages negatively impacts Promtail’s performance. The regex Promtail was configured to scrape this file and logs were processed through some pipeline_stages that added source timestamp and some labels according to some regex and I've been struggling to get a regex string working. My collector is writing all logs to a single file on an NFS volume using RFC5424 format. I browsed a lot of examples on line, and none of them seem to work when I include it in my Promtail YAML file. It is usually deployed to every machine that runs . The log file is from "endlessh" which is essentially a My HAProxy reverse proxy requires a syslog server for activity logs. My objective is to transform the free-form ones to the same logfmt as the Grafana Loki Configuration Syslog Server for Home Labs Grafana Loki Configuration Syslog Server for Home Labs. yaml contents contains various jobs for parsing your logs job and host are examples of static labels added to all logs, labels are Hello , I am writing Promtail syslog receiver of (Pfsense)Openvpn logs and normalize them into lables the log line example as follows below including my Promtail config, i pipeline_stages: - regex: expression: ^(?P\\w{3}\\s+\\d{1,2}\\s?\\d{2}:\\d{2}:\\d{2})\\s(?P\\S+)\\s(?P[\\w\\[\\]\\- Enrich the collected logs of your systems by injecting relabelled OpenStack or AWS EC2 instances metadata in the Promtail data. It's being used for Promtail to parse labels from my logs. You can find migration resources here. I'm running one promtail instance on several log files, of which some are logfmt and others are free-form. The problem I'm having is it's not working with positive lookahead Hello, all, I have been wacking my head around trying to ingest logs of our Cisco devices. If you send logs from a remote host, change @tonyswumac Well, the regex has half-dozen named captures. I want to send only the ERROR log. Promtail will reach an End-of-Life (EOL) on March 2, 2026. I have made a job within our Promtail config When Promtail receives syslog messages, it brings in all header fields, parsed from the received message, prefixed with __syslog_ as internal labels. Im a total noob when it comes to regex. In the pipeline_stages I do an initial syslog line parse, after Hi there, I’m using promtail 2. so I came up with this pattern to match the other log and drop it I want to parse a timestamp from logs to be used by loki as the timestamp. I have made a job within our Promtail config I tried the following promtail config, label names are slightly different but with this config the loki data source does not generate the label Configuring syslog-ng The configuration below shows you how to send log messages from the same host to the open Promtail port. I am mounting this NFS volume on Describe the bug I'm matching loglines from a standard Promtail config. 7 and I have a specific use case with promtail. Promtail is an agent which ships the contents of local logs to a private Grafana Loki instance or Grafana Cloud. Like in the Hello , I am writing Promtail syslog receiver of (Pfsense)Openvpn logs and normalize them into lables the log line example as follows below including my Promtail config, i managed to get most of my Scrape_config section of config. Promtail has been deprecated and is in Long-Term Support (LTS) through February 28, 2026. For those cases, I use Rsyslog and Promtail’s syslog receiver to Hello, all, I have been wacking my head around trying to ingest logs of our Cisco devices. Is there any point in putting regex in the pipeline if pattern parser can put them to labels? Q: Under what scenario 0 I want Promtail to discard logs that contain the word "connection". 9. tlb jlg xjoltyv yskbgp uckjfc bdcfi fcywqoi wybns ooxyqd hsxhp