From 90859e80ca23b8709d56b60d2066b569053e7e02 Mon Sep 17 00:00:00 2001 From: GitLab Bot Date: Thu, 12 Dec 2019 18:07:34 +0000 Subject: Add latest changes from gitlab-org/gitlab@master --- config/initializers/snowplow_tracker.rb | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 config/initializers/snowplow_tracker.rb (limited to 'config/initializers/snowplow_tracker.rb') diff --git a/config/initializers/snowplow_tracker.rb b/config/initializers/snowplow_tracker.rb new file mode 100644 index 00000000000..3c730e03738 --- /dev/null +++ b/config/initializers/snowplow_tracker.rb @@ -0,0 +1,23 @@ +# frozen_string_literal: true + +# Gitlab.com uses Snowplow for identifying users and events. +# https://gitlab.com/gitlab-org/gitlab/issues/6329 +# +# SnowplowTracker write log into STDERR +# https://github.com/snowplow/snowplow-ruby-tracker/blob/39fcfa2be793f2e25e73087a9700abc93f43b5e8/lib/snowplow-tracker/emitters.rb#L23 +# `LOGGER = Logger.new(STDERR)` +# +# In puma.rb, if `stdout_redirect` specify stderr, Puma will overwrite STDERR in: +# https://github.com/puma/puma/blob/b41205f5cacbc2ad0060472bdce68ba636f42175/lib/puma/runner.rb#L134 +# `STDERR.reopen stderr, (append ? "a" : "w")` +# As a result, SnowplowTracker will log into Puma stderr, when Puma enabled. +# +# By default, SnowplowTracker uses default log formatter. +# When enable Puma, SnowplowTracker log is expected to be JSON format, as part of puma_stderr.log. +# Hence overwrite ::SnowplowTracker::LOGGER.formatter to JSON formatter + +if defined?(::Puma) && defined?(::SnowplowTracker::LOGGER) + ::SnowplowTracker::LOGGER.formatter = proc do |severity, datetime, progname, msg| + { severity: severity, timestamp: datetime.utc.iso8601(3), pid: $$, progname: progname, message: msg }.to_json << "\n" + end +end -- cgit v1.2.1