newrelic.yml

#
# This file configures the New Relic Agent.  New Relic monitors Ruby, Java,
# .NET, PHP, Python, Node, and Go applications with deep visibility and low
# overhead.  For more information, visit www.newrelic.com.

# Generated September 03, 2022
#
# This configuration file is custom generated for app84845206@heroku.com_1
#
# For full documentation of agent configuration options, please refer to
# https://docs.newrelic.com/docs/agents/ruby-agent/installation-configuration/ruby-agent-configuration

common: &default_settings
  # Required license key associated with your New Relic account.
  license_key: e1e2412d2d58607edc910506551ef5cf8510d6ac

  # Your application name. Renaming here affects where data displays in New
  # Relic. For more details, see https://docs.newrelic.com/docs/apm/new-relic-apm/maintenance/renaming-applications
  app_name: The Car Free Challenge

  # To disable the agent regardless of other settings, uncomment the following:
  # agent_enabled: false

  # Logging level for log/newrelic_agent.log; options are error, warn, info, or
  # debug.
  log_level: info

  # All of the following configuration options are optional. Review them, and
  # uncomment or edit them if they appear relevant to your application needs.

  # If `true`, all logging-related features for the agent can be enabled or disabled
  # independently. If `false`, all logging-related features are disabled.
  # application_logging.enabled: true

  # If `true`, the agent captures log records emitted by this application.
  # application_logging.forwarding.enabled: true

  # Defines the maximum number of log records to buffer in memory at a time.
  # application_logging.forwarding.max_samples_stored: 10000

  # If `true`, the agent captures metrics related to logging for this application.
  # application_logging.metrics.enabled: true

  # If `true`, the agent decorates logs with metadata to link to entities, hosts, traces, and spans.
  # application_logging.local_decorating.enabled: false

  # If `true`, the agent will report source code level metrics for traced methods
  # see: https://docs.newrelic.com/docs/apm/agents/ruby-agent/features/ruby-codestream-integration/
  # code_level_metrics.enabled: true

  # If true, enables transaction event sampling.
  # transaction_events.enabled: true

  # Defines the maximum number of request events reported from a single harvest.
  # transaction_events.max_samples_stored: 1200

  # Prefix of attributes to exclude from all destinations. Allows * as wildcard at
  # end.
  # attributes_exclude: []

  # Prefix of attributes to include in all destinations. Allows * as wildcard at
  # end.
  # attributes_include: []

  # If true, enables capture of attributes for all destinations.
  # attributes.enabled: true

  # If true, enables an audit log which logs communications with the New Relic
  # collector.
  # audit_log.enabled: false

  # List of allowed endpoints to include in audit log.
  # audit_log.endpoints: [".*"]

  # Specifies a path to the audit log file (including the filename).
  # audit_log.path: "/audit_log"

  # Specify a list of constants that should prevent the agent from starting
  # automatically. Separate individual constants with a comma ,.
  # For example, Rails::Console,UninstrumentedBackgroundJob.
  # autostart.denylisted_constants: "rails::console"

  # Defines a comma-delimited list of executables that the agent should not
  # instrument. For example, rake,my_ruby_script.rb.
  # autostart.denylisted_executables: "irb,rspec"

  # Defines a comma-delimited list of Rake tasks that the agent should not
  # instrument. For example, assets:precompile,db:migrate.
  # autostart.denylisted_rake_tasks: "about,assets:clean,assets:clobber,assets:environment,assets:precompile,assets:precompile:all,db:create,db:drop,db:fixtures:load,db:migrate,db:migrate:status,db:rollback,db:schema:cache:clear,db:schema:cache:dump,db:schema:dump,db:schema:load,db:seed,db:setup,db:structure:dump,db:version,doc:app,log:clear,middleware,notes,notes:custom,rails:template,rails:update,routes,secret,spec,spec:features,spec:requests,spec:controllers,spec:helpers,spec:models,spec:views,spec:routing,spec:rcov,stats,test,test:all,test:all:db,test:recent,test:single,test:uncommitted,time:zones:all,tmp:clear,tmp:create,webpacker:compile"

  # Backports the faster Active Record connection lookup introduced in Rails 6,
  # which improves agent performance when instrumenting Active Record. Note that
  # this setting may not be compatible with other gems that patch Active Record.
  # backport_fast_active_record_connection_lookup: false

  # If true, the agent captures attributes from browser monitoring.
  # browser_monitoring.attributes.enabled: false

  # Prefix of attributes to exclude from browser monitoring. Allows * as wildcard
  # at end.
  # browser_monitoring.attributes.exclude: []

  # Prefix of attributes to include in browser monitoring. Allows * as wildcard at
  # end.
  # browser_monitoring.attributes.include: []

  # This is true by default, this enables auto-injection of the JavaScript header
  # for page load timing (sometimes referred to as real user monitoring or RUM).
  # browser_monitoring.auto_instrument: true

  # Manual override for the path to your local CA bundle. This CA bundle will be
  # used to validate the SSL certificate presented by New Relic's data collection
  # service.
  # ca_bundle_path: nil

  # Enable or disable the capture of memcache keys from transaction traces.
  # capture_memcache_keys: false

  # When true, the agent captures HTTP request parameters and attaches them to
  # transaction traces, traced errors, and TransactionError events. When using the
  # capture_params setting, the Ruby agent will not attempt to filter secret
  # information. Recommendation: To filter secret information from request
  # parameters,use the attributes.include setting instead. For more information,
  # see the Ruby attribute examples.
  # capture_params: false

  # If true, the agent will clear Tracer::State in Agent.drop_buffered_data.
  # clear_transaction_state_after_fork: false

  # Path to newrelic.yml. If undefined, the agent checks the following directories
  # (in order): config/newrelic.yml, newrelic.yml, $HOME/.newrelic/newrelic.yml
  # and $HOME/newrelic.yml.
  # config_path: newrelic.yml

  # If true, enables cross application tracing. Cross application tracing is now
  # deprecated, and disabled by default. Distributed tracing is replacing cross
  # application tracing as the default means of tracing between services.
  # To continue using it, set `cross_application_tracer.enabled: true` and
  # `distributed_tracing.enabled: false`
  # cross_application_tracer.enabled: false

  # If false, custom attributes will not be sent on New Relic Insights events.
  # custom_attributes.enabled: true

  # If true, the agent captures New Relic Insights custom events.
  # custom_insights_events.enabled: true

  # Specify a maximum number of custom Insights events to buffer in memory at a
  # time.
  # custom_insights_events.max_samples_stored: 1000

  # If false, the agent will not add database_name parameter to transaction or #
  # slow sql traces.
  # datastore_tracer.database_name_reporting.enabled: true

  # If false, the agent will not report datastore instance metrics, nor add host
  # or  port_path_or_id parameters to transaction or slow SQL traces.
  # datastore_tracer.instance_reporting.enabled: true

  # If true, disables Action Cable instrumentation.
  # disable_action_cable_instrumentation: false

  # If true, disables instrumentation for Active Record 4, 5, and 6.
  # disable_active_record_notifications: false

  # If true, disables Active Storage instrumentation.
  # disable_active_storage: false

  # If true, disables Active Job instrumentation.
  # disable_activejob: false

  # If true, disables Active Record instrumentation.
  # disable_active_record_instrumentation: false

  # If true, the agent won't sample the CPU usage of the host process.
  # disable_cpu_sampler: false

  # If true, disables DataMapper instrumentation.
  # disable_data_mapper: false

  # If true, the agent won't measure the depth of Delayed Job queues.
  # disable_delayed_job_sampler: false

  # If true, disables the use of GC::Profiler to measure time spent in garbage
  # collection
  # disable_gc_profiler: false

  # If true, the agent won't sample the memory usage of the host process.
  # disable_memory_sampler: false

  # If true, the agent won't wrap third-party middlewares in instrumentation
  # (regardless of whether they are installed via Rack::Builder or Rails).
  # disable_middleware_instrumentation: false

  # If true, disables the collection of sampler metrics. Sampler metrics are
  # metrics that are not event-based (such as CPU time or memory usage).
  # disable_samplers: false

  # If true, disables Sequel instrumentation.
  # disable_sequel_instrumentation: false

  # If true, disables Sidekiq instrumentation.
  # disable_sidekiq: false

  # If true, disables agent middleware for Sinatra. This middleware is responsible
  # for advanced feature support such as distributed tracing, page load
  # timing, and error collection.
  # disable_sinatra_auto_middleware: false

  # If true, disables view instrumentation.
  # disable_view_instrumentation: false

  # If true, the agent won't sample performance measurements from the Ruby VM.
  # disable_vm_sampler: false

  # Distributed tracing tracks and observes service requests as they flow through distributed systems.
  # With distributed tracing data, you can quickly pinpoint failures or performance issues and fix them.
  # distributed_tracing.enabled: true

  # If true, the agent captures attributes from error collection.
  # error_collector.attributes.enabled: false

  # Prefix of attributes to exclude from error collection.
  # Allows * as wildcard at end.
  # error_collector.attributes.exclude: []

  # Prefix of attributes to include in error collection.
  # Allows * as wildcard at end.
  # error_collector.attributes.include: []

  # If true, the agent collects TransactionError events.
  # error_collector.capture_events: true

  # If true, the agent captures traced errors and error count metrics.
  # error_collector.enabled: true

  # A list of error classes that the agent should treat as expected.
  # error_collector.expected_classes: []

  # A map of error classes to a list of messages. When an error of one of the
  # classes specified here occurs, if its error message contains one of the
  # strings corresponding to it here, that error will be treated as expected.
  # error_collector.expected_messages: {}

  # A comma separated list of status codes, possibly including ranges. Errors
  # associated with these status codes, where applicable, will be treated as
  # expected.
  # error_collector.expected_status_codes: ""

  # A list of error classes that the agent should ignore.
  # error_collector.ignore_classes: []

  # A map of error classes to a list of messages. When an error of one of the
  # classes specified here occurs, if its error message contains one of the
  # strings corresponding to it here, that error will be ignored.
  # error_collector.ignore_messages: ""

  # A comma separated list of status codes, possibly including ranges. Errors
  # associated with these status codes, where applicable, will be ignored.
  # error_collector.ignore_status_codes: ""

  # Defines the maximum number of frames in an error backtrace. Backtraces over
  # this amount are truncated at the beginning and end.
  # error_collector.max_backtrace_frames: 50

  # Defines the maximum number of TransactionError events sent to Insights per
  # harvest cycle.
  # error_collector.max_event_samples_stored: 100

  # Allows newrelic distributed tracing headers to be suppressed on outbound
  # requests.
  # exclude_newrelic_header: false

  # Forces the exit handler that sends all cached data to collector before
  # shutting down to be installed regardless of detecting scenarios where it
  # generally should bot be. Known use-case for this option is where Sinatra is
  # running as an embedded service within another framework and the agent is
  # detecting the Sinatra app and skipping the at_exit handler as a result.
  # Sinatra classically runs the entire application in an at_exit block and would
  # otherwise misbehave if the Agent's at_exit handler was also installed in
  # those circumstances. Note: send_data_on_exit should also be set to true in
  # tandem with this setting.
  # force_install_exit_handler: false

  # Ordinarily the agent reports dyno names with a trailing dot and process ID
  # (for example, worker.3). You can remove this trailing data by specifying the
  # prefixes you want to report without trailing data (for example, worker).
  # heroku.dyno_name_prefixes_to_shorten: ["scheduler", "run"]

  # If true, the agent uses Heroku dyno names as the hostname.
  # heroku.use_dyno_names: true

  # If true, enables high security mode. Ensure that you understand the
  # implication of enabling high security mode before enabling this setting.
  # https://docs.newrelic.com/docs/agents/manage-apm-agents/configuration/high-security-mode/
  # high_security: false

  # Configures the hostname for the Trace Observer Host. When configured, enables
  # tail-based sampling by sending all recorded spans to a Trace Observer for
  # further sampling decisions, irrespective of any usual agent sampling decision.
  # infinite_tracing.trace_observer.host: ""

  # Configures the TCP/IP port for the Trace Observer Host
  # infinite_tracing.trace_observer.port: 443

  # Controls auto-instrumentation of bunny at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.bunny: auto

  # Controls auto-instrumentation of Curb at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.curb: auto

  # Controls auto-instrumentation of Delayed Job at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.delayed_job: auto

  # Controls auto-instrumentation of Excon at start up.
  # May be one of [enabled|disabled].
  # instrumentation.excon: auto

  # Controls auto-instrumentation of Grape at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.grape: auto

  # Controls auto-instrumentation of HTTPClient at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.httpclient: auto

  # Controls auto-instrumentation of http.rb gem at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.httprb: auto

  # Controls auto-instrumentation of the Ruby standard library Logger.rb.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.logger: auto

  # Controls auto-instrumentation of ActiveSupport::Logger at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.active_support.logger: auto

  # Controls auto-instrumentation of memcache-client gem for Memcache at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.memcache_client: auto

  # Controls auto-instrumentation of dalli gem for Memcache at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.memcache: auto

  # Controls auto-instrumentation of memcached gem for Memcache at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.memcached: auto

  # Controls auto-instrumentation of Mongo at start up.
  # May be one of [enabled|disabled].
  # instrumentation.mongo: auto

  # Controls auto-instrumentation of Net::HTTP at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.net_http: auto

  # Controls auto-instrumentation of Puma::Rack::URLMap at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.puma_rack_urlmap: auto

  # Controls auto-instrumentation of Puma::Rack. When enabled, the agent hooks
  # into the to_app method in Puma::Rack::Builder to find gems to instrument
  # during application startup. May be one of [auto|prepend|chain|disabled].
  # instrumentation.puma_rack: auto

  # Controls auto-instrumentation of Rack::URLMap at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.rack_urlmap: auto

  # Controls auto-instrumentation of Rack. When enabled, the agent hooks into the
  # to_app method in Rack::Builder to find gems to instrument during application
  # startup. May be one of [auto|prepend|chain|disabled].
  # instrumentation.rack: auto

  # Controls auto-instrumentation of rake at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.rake: auto

  # Controls auto-instrumentation of Redis at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.redis: auto

  # Controls auto-instrumentation of resque at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.resque: auto

  # Controls auto-instrumentation of Sinatra at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.sinatra: auto

  # Controls auto-instrumentation of Tilt at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.tilt: auto

  # Controls auto-instrumentation of Typhoeus at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.typhoeus: auto

  # Controls auto-instrumentation of the Thread class at start up to allow the agent to correctly nest spans inside of an asyncronous transaction.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.thread: auto

  # Controls auto-instrumentation of the Thread class at start up to automatically add tracing to all Threads created in the application.
  # instrumentation.thread.tracing: false

  # Controls auto-instrumentation of gRPC clients at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.grpc_client: auto

  # Controls auto-instrumentation of gRPC servers at start up.
  # May be one of [auto|prepend|chain|disabled].
  # instrumentation.grpc_server: auto

  # Specifies a list of hostname patterns separated by commas that will match
  # gRPC hostnames that traffic is to be ignored by New Relic for.
  # New Relic's gRPC client instrumentation will ignore traffic streamed to a
  # host matching any of these patterns, and New Relic's gRPC server
  # instrumentation will ignore traffic for a server running on a host whose
  # hostname matches any of these patterns. By default, no traffic is ignored
  # when gRPC instrumentation is itself enabled.
  # For example, "private.com$,exception.*"
  # instrumentation.grpc.host_denylist: ""

  # A dictionary of label names and values that will be applied to the data sent
  # from this agent. May also be expressed asa semicolon-delimited ; string of
  # colon-separated : pairs.
  # For example,<var>Server</var>:<var>One</var>;<var>Data Center</var>:<var>Primary</var>.
  # labels: ""

  # Defines a name for the log file.
  # log_file_name: "newrelic_agent.log"

  # Defines a path to the agent log file, excluding the filename.
  # log_file_path: "log/"

  # Specifies a marshaller for transmitting data to the New Relic collector.
  # Currently json is the only valid value for this setting.
  # marshaller: json

  # If true, the agent will collect metadata about messages and attach them as
  # segment parameters.
  # message_tracer.segment_parameters.enabled: true

  # If true, the agent captures Mongo queries in transaction traces.
  # mongo.capture_queries: true

  # If true, the agent obfuscates Mongo queries in transaction traces.
  # mongo.obfuscate_queries: true

  # When true, the agent transmits data about your app to the New Relic collector.
  # monitor_mode: true

  # If true, uses Module#prepend rather than alias_method for Active Record
  # instrumentation.
  # prepend_active_record_instrumentation: false

  # Specify a custom host name for display in the New Relic UI
  # Be be aware that you cannot rename a hostname, so please rename
  # process_host.display_name: "default hostname"

  # Defines a host for communicating with the New Relic collector via a proxy
  # server.
  # proxy_host: nil

  # Defines a password for communicating with the New Relic collector via a proxy
  # server.
  # proxy_pass: nil

  # Defines a port for communicating with the New Relic collector via a proxy
  # server.
  # proxy_port: nil

  # Defines a user for communicating with the New Relic collector via a proxy
  # server.
  # proxy_user: nil

  # Timeout for waiting on connect to complete before a rake task
  # rake.connect_timeout: 10

  # Specify an array of Rake tasks to automatically instrument.
  # This configuration option converts the Array to a RegEx list.
  # If you'd like to allow all tasks by default, use `rake.tasks: [.+]`.
  # Rake tasks will not be instrumented unless they're added to this list.
  # For more information, visit the (New Relic Rake Instrumentation docs)[/docs/apm/agents/ruby-agent/background-jobs/rake-instrumentation].
  # rake.tasks: []

  # Define transactions you want the agent to ignore, by specifying a list of
  # patterns matching the URI you want to ignore.
  # rules.ignore_url_regexes: []

  # Applies Language Agent Security Policy settings.
  # security_policies_token: ""

  # If true, enables the exit handler that sends data to the New Relic collector
  # before shutting down.
  # send_data_on_exit: true

  # If true, the agent collects slow SQL queries.
  # slow_sql.enabled: false

  # If true, the agent collects explain plans in slow SQL queries. If this setting
  # is omitted, the transaction_tracer.explain.enabled setting will be applied as
  # the default setting for explain plans in slow SQL as well.
  # slow_sql.explain_enabled: false

  # Specify a threshold in seconds. The agent collects slow SQL queries and
  # explain plans that exceed this threshold.
  # slow_sql.explain_threshold: 1.0

  # Defines an obfuscation level for slow SQL queries.
  # Valid options are obfuscated, raw, or none.
  # slow_sql.record_sql: none

  # Generate a longer sql_id for slow SQL traces. sql_id is used for aggregation
  # of similar queries.
  # slow_sql.use_longer_sql_id: false

  # If true, the agent captures attributes on span events.
  # span_events_attributes.enabled: true

  # Defines the maximum number of span events reported from a single harvest.
  # This can be any integer between 1 and 10000. Increasing this value may impact
  # memory usage.
  # span_events.max_samples_stored: 2000

  # Prefix of attributes to exclude from span events. Allows * as wildcard at end.
  # span_events.attributes.exclude: []

  # Prefix of attributes to include on span events. Allows * as wildcard at end.
  # span_events.attributes.include: []

  # If true, enables span event sampling.
  # span_events.enabled: true

  # Sets the maximum number of span events to buffer when streaming to the trace
  # observer.
  # span_events.queue_size: 10000

  # Specify a list of exceptions you do not want the agent to strip when
  # strip_exception_messages is true. Separate exceptions with a comma. For
  # example, "ImportantException,PreserveMessageException".
  # strip_exception_messages.allowed_classes: ""

  # If true, the agent strips messages from all exceptions except those in the
  # allowlist. Enabled automatically in high security mode.
  # strip_exception_messages.enabled: true

  # When set to true, forces a synchronous connection to the New Relic collector
  # during application startup. For very short-lived processes, this helps ensure # the New Relic agent has time to report.
  # sync_startup: false

  # If true, enables use of the thread profiler.
  # thread_profiler.enabled: false

  # Defines the maximum number of seconds the agent should spend attempting to
  # connect to the collector.
  # timeout: 120

  # If true, the agent captures attributes from transaction events.
  # transaction_events_attributes.enabled: false

  # Prefix of attributes to exclude from transaction events.
  # Allows * as wildcard at end.
  # transaction_events.attributes.exclude: []

  # Prefix of attributes to include in transaction events.
  # Allows * as wildcard at end.
  # transaction_events.attributes.include: []

  # If true, the agent captures attributes on transaction segments.
  # transaction_segments_attributes.enabled: true

  # Prefix of attributes to exclude from transaction segments.
  # Allows * as wildcard at end.
  # transaction_segments.attributes.exclude: []

  # Prefix of attributes to include on transaction segments.
  # Allows * as wildcard at end.
  # transaction_segments.attributes.include: []

  # If true, the agent captures attributes from transaction traces.
  # transaction_tracer.attributes.enabled: false

  # Prefix of attributes to exclude from transaction traces.
  # Allows * as wildcard at end.
  # transaction_tracer.attributes.exclude: []

  # Prefix of attributes to include in transaction traces.
  # Allows * as wildcard at end.
  # transaction_tracer.attributes.include: []

  # If true, enables collection of transaction traces.
  # transaction_tracer.enabled: true

  # Threshold (in seconds) above which the agent will collect explain plans.
  # Relevant only when explain.enabled is true.
  # transaction_tracer.explain_threshold: 0.5

  # If true, enables the collection of explain plans in transaction traces.
  # This setting will also apply to explain plans in slow SQL traces if
  # slow_sql.explain enabled is not set separately.
  # transaction_tracer.explain.enabled:  true

  # Maximum number of transaction trace nodes to record in a single transaction
  # trace.
  # transaction_tracer.limit_segments: 4000

  # If true, the agent records Redis command arguments in transaction traces.
  # transaction_tracer.record_redis_arguments: false

  # Obfuscation level for SQL queries reported in transaction trace nodes.
  # By default, this is set to obfuscated, which strips out the numeric and string
  # literals. If you do not want the agent to capture query information, set this
  # to 'none'. If you want the agent to capture all query information in its
  # original form, set this to 'raw'. When you enable high security mode this is
  # automatically set to 'obfuscated'
  # transaction_tracer.record_sql: 'obfuscated'

  # Specify a threshold in seconds. The agent includes stack traces in transaction
  # trace nodes when the stack trace duration exceeds this threshold.
  # transaction_tracer.stack_trace_threshold: 0.5

  # Specify a threshold in seconds. Transactions with a duration longer than this
  # threshold are eligible for transaction traces. Specify a float value or the
  # string apdex_f.
  # transaction_tracer.transaction_threshold: 1.0

  # If true, the agent automatically detects that it is running in an AWS
  # environment.
  # utilization.detect_aws: true

  # If true, the agent automatically detects that it is running in an Azure
  # environment.
  # utilization.detect_azure: true

  # If true, the agent automatically detects that it is running in Docker.
  # utilization.detect_docker: true

  # If true, the agent automatically detects that it is running in an Google Cloud
  # Platform environment.
  # utilization.detect_gcp: true

  # If true, the agent automatically detects that it is running in Kubernetes.
  # utilization.detect_kubernetes: true

  # If true, the agent automatically detects that it is running in a Pivotal Cloud Foundry environment.
  # utilization.detect_pcf: true

# Environment-specific settings are in this section.
# RAILS_ENV or RACK_ENV (as appropriate) is used to determine the environment.
# If your application has other named environments, configure them here.
development:
  <<: *default_settings
  app_name: TheCarFreeChallenge Dev

test:
  <<: *default_settings
  # It doesn't make sense to report to New Relic from automated test runs.
  monitor_mode: false

staging:
  <<: *default_settings
  app_name: TheCarFreeChallenge Staging

production:
  <<: *default_settings