A logstash filter to parse C# stack traces and exception messages.

Installation

As this plugin has been shared on RubyGems with the name logstash-filter-csharp you can install it using the following command from your Logstash installation path:

bin/logstash-plugin install logstash-filter-csharp

Usage

Here is an example configuration that reads fields from a JSON-formatted log and expects stack traces to be in the field stackTrace and exceptions to be in the field `exception. It parses these into fields which are in this example written to metadata that is then consumed by logstash-output-sentry

filter {
  grok {
    match => { "message" => "\[%{LOGLEVEL:log_type}\] %{TIMESTAMP_ISO8601:timestamp_iso} :: %{GREEDYDATA:json_message}" }
  }

  json {
    source => "json_message"
  }

  if [stackTrace] {
   csharp {
     type => "stacktrace"
     source => [stackTrace]
     target => "[@metadata][sentry][stacktrace]"
     stackframe_path_prefix => ".*\\(?=prod\\)"
     most_recent_call_last => true
   }
 }

 if [exception] {
   csharp {
     type => "exception"
     source => [exception]
     target => "[@metadata][sentry][exception]"
     most_recent_call_last => true
  }
}

Running Tests

The tests live in spec/. To run them, do something like

export GEM_HOME=`mktemp -d`
jruby -S gem install bundler
jruby -S bundle install
jruby -S bundle exec rspec

Releasing a new Version

We use rever. To create a new release make sure you are on the master branch, identical to origin/master without pending changes and run

rever <VERSION>