Add configs for datadog (#8)

.env

@@ -43,3 +43,7 @@ NEW_RELIC_LICENSE_KEY=
 # Dynatrace
 DYNATRACE_OTLP_ENDPOINT=https://your-endpoint.live.dynatrace.com/api/v2/otlp
 DYNATRACE_API_TOKEN="Api-Token dt0c01.your.key"
+
+# Datadog
+DATADOG_API_KEY="your-datadog-key"
+DATADOG_SITE="datadoghq.eu"

README.md

@@ -23,6 +23,14 @@ Make sure OpenTelemetry Collector service
 in [docker-compose.yml](./docker-compose.yaml) has the Dynatrace command uncommented.
 Restart the containers.
 
+## Datadog
+The collector is preconfigured to export metric, traces and log entries to Datadog.
+In order to activate it add your Datadog API key to the `.env` file. In case you're
+registered under another region than EU, update your Datadog site in the `.env` file as well.
+Make sure OpenTelemetry Collector service
+in [docker-compose.yml](./docker-compose.yaml) has the Datadog command uncommented.
+Restart the containers.
+
 ## Jaeger UI
 
 http://localhost:16686

docker-compose.yaml

@@ -63,14 +63,17 @@ services:
           memory: 125M
     restart: unless-stopped
 #    New Relic
-    command: [ "--config=/etc/otelcol-config.yml", "--config=/etc/otelcol-observability.yml", "--config=/etc/otelcol-config-newrelic.yml" ]
+#    command: [ "--config=/etc/otelcol-config.yml", "--config=/etc/otelcol-observability.yml", "--config=/etc/otelcol-config-newrelic.yml" ]
 #    Dynatrace
 #    command: [ "--config=/etc/otelcol-config.yml", "--config=/etc/otelcol-observability.yml", "--config=/etc/otelcol-config-dynatrace.yml" ]
+#   Datadog
+    command: [ "--config=/etc/otelcol-config.yml", "--config=/etc/otelcol-observability.yml", "--config=/etc/otelcol-config-datadog.yml" ]
     volumes:
       - ./src/otelcollector/otelcol-config.yml:/etc/otelcol-config.yml
       - ./src/otelcollector/otelcol-observability.yml:/etc/otelcol-observability.yml
       - ./src/otelcollector/otelcol-config-newrelic.yml:/etc/otelcol-config-newrelic.yml
       - ./src/otelcollector/otelcol-config-dynatrace.yml:/etc/otelcol-config-dynatrace.yml
+      - ./src/otelcollector/otelcol-config-datadog.yml:/etc/otelcol-config-datadog.yml
     ports:
       - "4317:4317"     # OTLP over gRPC receiver
       - "4318:4318"     # OTLP over HTTP receiver
@@ -84,6 +87,8 @@ services:
       - NEW_RELIC_LICENSE_KEY=${NEW_RELIC_LICENSE_KEY}
       - DYNATRACE_OTLP_ENDPOINT=${DYNATRACE_OTLP_ENDPOINT}
       - DYNATRACE_API_TOKEN=${DYNATRACE_API_TOKEN}
+      - DATADOG_API_KEY=${DATADOG_API_KEY}
+      - DATADOG_SITE=${DATADOG_SITE}
 
   # Prometheus
   prometheus:

src/otelcollector/otelcol-config-datadog.yml

@@ -0,0 +1,20 @@
+# Copyright The OpenTelemetry Authors
+# SPDX-License-Identifier: Apache-2.0
+# extra settings to be merged into OpenTelemetry Collector configuration
+# do not delete this file
+
+exporters:
+  datadog:
+    api:
+      site: ${DATADOG_SITE}
+      key: ${DATADOG_API_KEY}
+      fail_on_invalid_key: true
+
+service:
+  pipelines:
+    traces:
+      exporters: [otlp, logging, spanmetrics, datadog]
+    metrics:
+      exporters: [prometheus, logging, datadog]
+    logs:
+      exporters: [logging, datadog]