Update env var conventions and make consistent across language clients

docs/GettingStarted.md

@@ -1633,13 +1633,14 @@ end
 
 Available options are:
 
- - `enabled`: defines if the `tracer` is enabled or not. If set to `false` instrumentation will still run, but no spans are sent to the trace agent.
+ - `enabled`: defines if the `tracer` is enabled or not. If set to `false` instrumentation will still run, but no spans are sent to the trace agent. Can be configured through the `DD_TRACE_ENABLED` environment variable.
  - `hostname`: set the hostname of the trace agent.
  - `instance`: set to a custom `Datadog::Tracer` instance. If provided, other trace settings are ignored (you must configure it manually.)
  - `partial_flush.enabled`: set to `true` to enable partial trace flushing (for long running traces.) Disabled by default. *Experimental.*
  - `port`: set the port the trace agent is listening on.
  - `sampler`: set to a custom `Datadog::Sampler` instance. If provided, the tracer will use this sampler to determine sampling behavior.
  - `diagnostics.startup_logs.enabled`: Startup configuration and diagnostic log. Defaults to `true`. Can be configured through the `DD_TRACE_STARTUP_LOGS` environment variable.
+ - `diagnostics.debug`: set to true to enable debug logging. Can be configured through the `DD_TRACE_DEBUG` environment variable.
 
 #### Custom logging
 
@@ -1687,6 +1688,15 @@ This enables you to set this value on a per application basis, so you can have f
 
 Tags can also be set directly on individual spans, which will supersede any conflicting tags defined at the application level.
 
+### Environment variables
+
+Other Environment Variables:
+
+- `DD_TRACE_AGENT_URL`: Sets the URL endpoint where traces are sent. Overrides DD_AGENT_HOST and DD_TRACE_AGENT_PORT if set. e.g. `DD_TRACE_AGENT_URL=http://localhost:8126`
+- `DD_TRACE_<INTEGRATION>_ENABLED`: Disables a specific integration. Valid values are: false. e.g. `DD_TRACE_RAILS_ENABLED=false`. **Please note**, in order to **enable** automatic instrumentation for a specific integration, the integration must be configured via application code. This environment variable can only be used to disable an integration.
+- `DD_TRACE_<INTEGRATION>_ANALYTICS_ENABLED`: Enables or disable App Analytics for a specific integration. Valid values are: true or false (default). e.g. `DD_TRACE_ACTION_CABLE_ANALYTICS_ENABLED=true`.
+- `DD_TRACE_<INTEGRATION>_ANALYTICS_SAMPLE_RATE`: Sets the App Analytics sampling rate for a specific integration. A floating number between 0.0 and 1.0 (default). e.g. `DD_TRACE_ACTION_CABLE_ANALYTICS_SAMPLE_RATE=0.5`. 
+
 ### Sampling
 
 `ddtrace` can perform trace sampling. While the trace agent already samples traces to reduce bandwidth usage, client sampling reduces the performance overhead.

lib/ddtrace/configuration/settings.rb

@@ -37,7 +37,10 @@ class Settings
       end
 
       settings :diagnostics do
-        option :debug, default: false
+        option :debug do |o|
+          o.default { env_to_bool(Datadog::Ext::Diagnostics::DD_TRACE_DEBUG, false) }
+          o.lazy
+        end
 
         settings :health_metrics do
           option :enabled do |o|
@@ -198,7 +201,10 @@ def runtime_metrics(options = nil)
       end
 
       settings :tracer do
-        option :enabled, default: true
+        option :enabled do |o|
+          o.default { env_to_bool(Datadog::Ext::Diagnostics::DD_TRACE_ENABLED, true) }
+          o.lazy
+        end
         option :hostname # TODO: Deprecate
         option :instance
 

lib/ddtrace/contrib/action_cable/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the ActionCable integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/action_cable/ext.rb

@@ -4,8 +4,10 @@ module ActionCable
       # ActionCable integration constants
       module Ext
         APP = 'action_cable'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_ACTION_CABLE_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_ACTION_CABLE_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_ACTION_CABLE_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_ACTION_CABLE_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_ACTION_CABLE_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_ACTION_CABLE_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'action_cable'.freeze
         SPAN_ACTION = 'action_cable.action'.freeze
         SPAN_BROADCAST = 'action_cable.broadcast'.freeze

lib/ddtrace/contrib/action_pack/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the ActionPack integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, nil) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], nil) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/action_pack/ext.rb

@@ -4,8 +4,10 @@ module ActionPack
       # ActionPack integration constants
       module Ext
         APP = 'action_pack'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_ACTION_PACK_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_ACTION_PACK_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_ACTION_PACK_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_ACTION_PACK_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_ACTION_PACK_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_ACTION_PACK_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'action_pack'.freeze
         SPAN_ACTION_CONTROLLER = 'rails.action_controller'.freeze
         TAG_ROUTE_ACTION = 'rails.route.action'.freeze

lib/ddtrace/contrib/action_view/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the ActionView integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/action_view/ext.rb

@@ -4,8 +4,10 @@ module ActionView
       # ActionView integration constants
       module Ext
         APP = 'action_view'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_ACTION_VIEW_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_ACTION_VIEW_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_ACTION_VIEW_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_ACTION_VIEW_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_ACTION_VIEW_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_ACTION_VIEW_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'action_view'.freeze
         SPAN_RENDER_PARTIAL = 'rails.render_partial'.freeze
         SPAN_RENDER_TEMPLATE = 'rails.render_template'.freeze

lib/ddtrace/contrib/active_model_serializers/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the ActiveModelSerializers integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/active_model_serializers/ext.rb

@@ -4,8 +4,10 @@ module ActiveModelSerializers
       # ActiveModelSerializers integration constants
       module Ext
         APP = 'active_model_serializers'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_ACTIVE_MODEL_SERIALIZERS_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_ACTIVE_MODEL_SERIALIZERS_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_ACTIVE_MODEL_SERIALIZERS_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_ACTIVE_MODEL_SERIALIZERS_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_ACTIVE_MODEL_SERIALIZERS_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_ACTIVE_MODEL_SERIALIZERS_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'active_model_serializers'.freeze
         SPAN_RENDER = 'active_model_serializers.render'.freeze
         SPAN_SERIALIZE = 'active_model_serializers.serialize'.freeze

lib/ddtrace/contrib/active_record/configuration/settings.rb

@@ -9,12 +9,12 @@ module Configuration
         # Custom settings for the ActiveRecord integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/active_record/ext.rb

@@ -4,8 +4,10 @@ module ActiveRecord
       # ActiveRecord integration constants
       module Ext
         APP = 'active_record'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_ACTIVE_RECORD_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_ACTIVE_RECORD_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_ACTIVE_RECORD_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_ACTIVE_RECORD_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_ACTIVE_RECORD_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_ACTIVE_RECORD_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'active_record'.freeze
         SPAN_INSTANTIATION = 'active_record.instantiation'.freeze
         SPAN_SQL = 'active_record.sql'.freeze

lib/ddtrace/contrib/active_support/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the ActiveSupport integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/active_support/ext.rb

@@ -4,8 +4,10 @@ module ActiveSupport
       # ActiveSupport integration constants
       module Ext
         APP = 'active_support'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_ACTIVE_SUPPORT_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_ACTIVE_SUPPORT_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_ACTIVE_SUPPORT_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_ACTIVE_SUPPORT_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_ACTIVE_SUPPORT_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_ACTIVE_SUPPORT_ANALYTICS_SAMPLE_RATE'.freeze
         QUANTIZE_CACHE_MAX_KEY_SIZE = 300
         RESOURCE_CACHE_DELETE = 'DELETE'.freeze
         RESOURCE_CACHE_GET = 'GET'.freeze

lib/ddtrace/contrib/aws/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the AWS integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/aws/ext.rb

@@ -4,8 +4,10 @@ module Aws
       # AWS integration constants
       module Ext
         APP = 'aws'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_AWS_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_AWS_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_AWS_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_AWS_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_AWS_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_AWS_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'aws'.freeze
         SPAN_COMMAND = 'aws.command'.freeze
         TAG_AGENT = 'aws.agent'.freeze

lib/ddtrace/contrib/dalli/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the Dalli integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/dalli/ext.rb

@@ -4,8 +4,10 @@ module Dalli
       # Dalli integration constants
       module Ext
         APP = 'dalli'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_DALLI_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_DALLI_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_DALLI_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_DALLI_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_DALLI_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_DALLI_ANALYTICS_SAMPLE_RATE'.freeze
         QUANTIZE_MAX_CMD_LENGTH = 100
         SERVICE_NAME = 'memcached'.freeze
         SPAN_COMMAND = 'memcached.command'.freeze

lib/ddtrace/contrib/delayed_job/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the DelayedJob integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/delayed_job/ext.rb

@@ -4,8 +4,10 @@ module DelayedJob
       # DelayedJob integration constants
       module Ext
         APP = 'delayed_job'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_DELAYED_JOB_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_DELAYED_JOB_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_DELAYED_JOB_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_DELAYED_JOB_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_DELAYED_JOB_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_DELAYED_JOB_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'delayed_job'.freeze
         SPAN_JOB = 'delayed_job'.freeze
         TAG_ATTEMPTS = 'delayed_job.attempts'.freeze

lib/ddtrace/contrib/elasticsearch/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the Elasticsearch integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/elasticsearch/ext.rb

@@ -4,8 +4,10 @@ module Elasticsearch
       # Elasticsearch integration constants
       module Ext
         APP = 'elasticsearch'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_ELASTICSEARCH_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_ELASTICSEARCH_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_ELASTICSEARCH_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_ELASTICSEARCH_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_ELASTICSEARCH_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_ELASTICSEARCH_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'elasticsearch'.freeze
         SPAN_QUERY = 'elasticsearch.query'.freeze
         SPAN_TYPE_QUERY = 'elasticsearch'.freeze

lib/ddtrace/contrib/ethon/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the Ethon integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end
 

lib/ddtrace/contrib/ethon/ext.rb

@@ -4,8 +4,10 @@ module Ethon
       # Ethon integration constants
       module Ext
         APP = 'ethon'.freeze
-        ENV_ANALYTICS_ENABLED = 'DD_ETHON_ANALYTICS_ENABLED'.freeze
-        ENV_ANALYTICS_SAMPLE_RATE = 'DD_ETHON_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_ENABLED = 'DD_TRACE_ETHON_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_ENABLED_OLD = 'DD_ETHON_ANALYTICS_ENABLED'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE = 'DD_TRACE_ETHON_ANALYTICS_SAMPLE_RATE'.freeze
+        ENV_ANALYTICS_SAMPLE_RATE_OLD = 'DD_ETHON_ANALYTICS_SAMPLE_RATE'.freeze
         SERVICE_NAME = 'ethon'.freeze
         SPAN_REQUEST = 'ethon.request'.freeze
         SPAN_MULTI_REQUEST = 'ethon.multi.request'.freeze

lib/ddtrace/contrib/excon/configuration/settings.rb

@@ -8,12 +8,12 @@ module Configuration
         # Custom settings for the Excon integration
         class Settings < Contrib::Configuration::Settings
           option :analytics_enabled do |o|
-            o.default { env_to_bool(Ext::ENV_ANALYTICS_ENABLED, false) }
+            o.default { env_to_bool([Ext::ENV_ANALYTICS_ENABLED, Ext::ENV_ANALYTICS_ENABLED_OLD], false) }
             o.lazy
           end
 
           option :analytics_sample_rate do |o|
-            o.default { env_to_float(Ext::ENV_ANALYTICS_SAMPLE_RATE, 1.0) }
+            o.default { env_to_float([Ext::ENV_ANALYTICS_SAMPLE_RATE, Ext::ENV_ANALYTICS_SAMPLE_RATE_OLD], 1.0) }
             o.lazy
           end