Configuring docker environment execution

Author: Jonathan Henrique Medeiros

Dockerfile

@@ -1,14 +1,16 @@
 FROM maven:3.8.5-openjdk-17 AS build
 
-COPY . .
+COPY pom.xml .
+RUN mvn dependency:go-offline
 
-RUN mvn --batch-mode package
+COPY src src
+RUN mvn package
 
-FROM openjdk:17.0.2
+FROM openjdk:17.0.2 AS release
 
-ADD https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/latest/download/opentelemetry-javaagent.jar .
+COPY --from=build /target/*.jar /app.jar
 
-COPY --from=build /target/multidatasources*.jar /app.jar
+ADD https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/latest/download/opentelemetry-javaagent.jar .
 
 COPY docker-entrypoint.sh .
 

docker-entrypoint.sh

@@ -2,11 +2,10 @@
 
 set -e
 
-exec java -jar /app.jar \
- && -javaagent:./opentelemetry-javaagent.jar \
- && -Dotel.traces.exporter=jaeger \
- && -Dotel.metrics.exporter=prometheus \
- && -Dotel.exporter.prometheus.port="${PROMETHEUS_PORT}" \
- && -Dotel.exporter.prometheus.host="${PROMETHEUS_HOST}" \
- && -Dotel.exporter.jaeger.endpoint="${JAEGER_ENDPOINT}" \
- && -Dotel.resource.attributes=service.name="${APPLICATION_NAME}"
+# Environment variables for development with docker
+export OTEL_TRACES_EXPORTER=jaeger
+export OTEL_EXPORTER_OTLP_TRACES_ENDPOINT=http://host.docker.internal:14250
+export OTEL_METRICS_EXPORTER=none
+export OTEL_SERVICE_NAME=billionaire-api
+
+exec java -Dspring.profiles.active=docker -javaagent:opentelemetry-javaagent.jar -jar app.jar

src/main/resources/application-docker.yaml

@@ -0,0 +1,9 @@
+# DATABASE MASTER PROPERTIES
+master:
+ datasource:
+ host: host.docker.internal
+
+# DATABASE REPLICA PROPERTIES
+replica:
+ datasource:
+ host: host.docker.internal