Adds Zipkin tracing support for gruf 1.0.0 or later.
gem 'gruf-zipkin'Then in an initializer or before use, after loading gruf:
require 'zipkin-tracer'
require 'gruf/zipkin'
# Set it in the Rails config, or alternatively make this just a hash if not using Rails
Rails.application.config.zipkin_tracer = {
service_name: 'my-service',
service_port: 1234,
json_api_host: 'zipkin.mydomain.com',
sampled_as_boolean: false,
sample_rate: 0.1 # 0.0 to 1.0, where 1.0 => 100% of requests
}
Gruf.configure do |c|
c.hook_options[:zipkin] = Rails.application.config.zipkin_tracer
end
Gruf::Hooks::Registry.add(:zipkin, Gruf::Zipkin::Hook)This assumes you have Zipkin already setup in your Ruby/Rails app via the installation instructions in the zipkin-tracer gem.
Add this to config.ru, if using above configuration:
use ZipkinTracer::RackHandler, Rails.application.config.zipkin_tracerYou can further customize the tracing of gruf services via the configuration:
Gruf.configure do |c|
c.hook_options[:zipkin] = {
span_prefix: 'myapp'
}
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