A watchtower Ruby rack application. This gem provides a Rack-application that offers a snapshot insight into the state of the mother-application Ruby process.
Atalaya features several visors:
- VM
- Process
- Rails
- Puma
{
"process" : {
"process_id" : 12108,
"threads" : {
"backtraces" : [
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/cluster.rb:306:in `join'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/cluster.rb:254:in `select'",
"/app/shared/bundle/ruby/2.6.0/gems/activerecord-5.2.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:301:in `sleep'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/cluster.rb:291:in `sleep'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/thread_pool.rb:119:in `sleep'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/thread_pool.rb:119:in `sleep'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/thread_pool.rb:119:in `sleep'",
"/app/shared/bundle/ruby/2.6.0/bundler/gems/atalaya-0eab2b5556fa/lib/atalaya/visors/process.rb:25:in `backtrace'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/reactor.rb:126:in `select'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/thread_pool.rb:283:in `sleep'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/thread_pool.rb:254:in `sleep'",
"/app/shared/bundle/ruby/2.6.0/gems/puma-3.12.0/lib/puma/server.rb:384:in `select'",
"/app/shared/bundle/ruby/2.6.0/gems/newrelic_rpm-6.0.0.351/lib/new_relic/agent/event_loop.rb:118:in `select'"
],
"statuses" : [
"sleep",
"sleep",
"sleep",
"sleep",
"sleep",
"sleep",
"sleep",
"run",
"sleep",
"sleep",
"sleep",
"sleep",
"sleep"
],
"count" : 13
}
},
"puma" : {
"server" : {
"mode" : "cluster",
"workers" : 2
}
},
"rails" : {
"action_mailer" : null,
"action_controller" : null,
"action_view" : null,
"active_record" : {
"prepared_statements_count" : [
4
],
"pool_size" : 5,
"prepared_statements" : [
{
"\"$user\", public-SELECT \"specifications\".* FROM \"specifications\" WHERE \"specifications\".\"id\" = $1 LIMIT $2" : "a4",
"\"$user\", public-SELECT \"makes\".* FROM \"makes\" WHERE \"makes\".\"id\" = $1 LIMIT $2" : "a2",
"\"$user\", public-SELECT \"models\".* FROM \"models\" WHERE \"models\".\"id\" = $1 LIMIT $2" : "a3",
"\"$user\", public-SELECT \"motorcycles\".* FROM \"motorcycles\" WHERE \"motorcycles\".\"fake_id\" = $1 LIMIT $2" : "a1"
}
],
"active_connections_count" : 1
},
"cache": null
},
"vm" : {
"object_space" : {
"T_STRING" : 78621,
"T_RATIONAL" : 790,
"T_COMPLEX" : 1,
"T_DATA" : 5608,
"T_STRUCT" : 904,
"T_CLASS" : 7468,
"T_OBJECT" : 7477,
"T_MATCH" : 60,
"TOTAL" : 287656,
"T_SYMBOL" : 665,
"T_IMEMO" : 86961,
"T_MODULE" : 1066,
"T_REGEXP" : 1898,
"T_ICLASS" : 1845,
"T_HASH" : 4109,
"T_FLOAT" : 2282,
"T_FILE" : 27,
"T_ARRAY" : 13057,
"T_BIGNUM" : 731,
"FREE" : 74086
},
"gc_stat" : {
"heap_tomb_pages" : 0,
"heap_available_slots" : 287656,
"old_objects_limit" : 405568,
"remembered_wb_unprotected_objects_limit" : 5810,
"total_allocated_objects" : 2033068,
"heap_allocatable_pages" : 0,
"total_freed_pages" : 0,
"malloc_increase_bytes_limit" : 16777216,
"total_allocated_pages" : 352,
"heap_marked_slots" : 208589,
"total_freed_objects" : 1819498,
"malloc_increase_bytes" : 197020,
"heap_eden_pages" : 352,
"heap_free_slots" : 74086,
"heap_allocated_pages" : 352,
"heap_final_slots" : 0,
"heap_live_slots" : 213570,
"old_objects" : 202784,
"heap_sorted_length" : 352,
"oldmalloc_increase_bytes_limit" : 16777216,
"remembered_wb_unprotected_objects" : 2905,
"major_gc_count" : 11,
"oldmalloc_increase_bytes" : 3257268,
"count" : 63,
"minor_gc_count" : 52
}
}
}You'll need to add atalaya to your Gemfile
# Use most recent version
gem 'atalaya', git: 'https://github.com/irvingwashington/atalaya.git'
# Or use the stable version from RubyGems
gem 'atalaya'Run bundle install.
In your Rails app, add the rack application entry.
Rails.application.routes.draw do
# ...
match '/atalaya.json', to: Atalaya::App.new, via: :get
# ...
end
However, serving this information publicly is not a good idea. You should wrap the app with some form of authentication. You can use a custom routing constraint class if your app doesn't have any other form of authentication.
# lib/constraints/authenticated_call.rb
module Constraints
class AuthenticatedCall
def self.matches?(request)
if ActionController::HttpAuthentication::Basic.has_basic_credentials?(request)
credentials = ActionController::HttpAuthentication::Basic.decode_credentials(request)
login, password = credentials.split(':')
login == 'foo' && password == 'bar'
end
end
end
end
# config/routes.rb
require Rails.root.join('lib', 'constraints', 'authenticated_call')
Rails.applcation.routes.draw do
constraints Constraints::AuthenticatedCall do
match '/atalaya.json', to: Atalaya::App.new, via: :get
end
end
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