Join Log in
Score:0
avatar Server

rsyslog - how to tag and apply ruleset by line contents?

ma flag
threewordphrase

I am cleaning up and standardizing our log handling, adding fluentd and ELK. This part is working fine, since nginx is logging to its own file:

input(type="imfile" tag="app.nginx" file="/var/log/nginx/access.log" ruleset="fluentd")

However other components of the app, e.g. the python process, are logging to /var/log/syslog with log messages that are prefixed with [flask]. I would like to filter /var/log/syslog messages containing [flask], tag them with app.flask, and apply the fluentd ruleset.

I could configure each service to log to its own file like nginx, but I would like to avoid changing systemd config if possible.

33
0 + 0
Score:0
avatar Server
ma flag
threewordphrase

I ended up solving this problem by redirecting messages to a specific log file and then adding an input pointed to it.

if $rawmsg contains "[flask]" then /var/log/flask.log

input(type="imfile" tag="app.flask" file="/var/log/flask.log" ruleset="fluentd")

If there is a way to do this without redirection to a different file I would still like to know.

0 + 0
ธงชาติไทย
Elon Musk
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.