From: Cenon Del Rosario <cdelrosario@publishing.nine.com.au>
To: unicorn-public@yhbt.net
Subject: Formatting unicorn logs in json format for $stderr
Date: Tue, 6 Jul 2021 17:22:27 +1000 [thread overview]
Message-ID: <CAKZvEvJ2aYd=aZ-tY8JOUMTGbLJ2PDfMZULCFkJi9_7FdLeZ7A@mail.gmail.com> (raw)
Hi,
I am using rails 3.2.22 / ruby 2.1.8 and am trying to reformat the
unicorn log output from stderr into json format and have had partial
success.
I have a basic json formatter:
class JsonLogFormatter < Logger::Formatter
def call(severity, datetime, progname, msg)
log_msg = {
time: "#{datetime}",
severity: "#{severity}",
source: "#{progname}"
}
msg.is_a?(Hash) ? log_msg.merge!(msg) : log_msg.merge!(message: "#{msg}")
"#{log_msg.to_json}\n"
end
end
I have this in my unicorn config:
Logger.new($stderr).tap do |newlgr|
newlgr.formatter = JsonLogFormatter.new
end
I have this in my application.rb:
Logger.new(STDOUT).tap do |logr|
JsonLogFormatter.new.tap do |frmtr|
logr.formatter = frmtr
Rails.logger = config.logger = logr
end
end
For the most part it works and I get the stdout and stderr in json but
I also see some other non-json formatted messages, for example:
{"time":"2021-07-06 17:14:01
+1000","severity":"INFO","source":"","message":"Started GET \"/admin\"
for 127.0.0.1 at 2021-07-06 17:14:01 +1000"}
127.0.0.1 - - [06/Jul/2021 17:14:01] "GET /admin HTTP/1.1" 301 102 0.4243
It seems that rails logs are working and then the unicorn process
itself is outputting its own logs because I can see duplicates of the
same log message one in json and the other in plain text.
Just want to know if there is a way to get this working consistently?
Thank you,
Cenon Del Rosario
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next reply other threads:[~2021-07-06 7:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-06 7:22 Cenon Del Rosario [this message]
2021-07-06 10:41 ` Formatting unicorn logs in json format for $stderr Eric Wong
2021-07-06 23:21 ` Cenon Del Rosario
2021-07-06 23:38 ` Eric Wong
2021-07-07 0:04 ` Cenon Del Rosario
2021-07-07 0:16 ` Eric Wong
2021-07-07 7:01 ` Cenon Del Rosario
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