Dockerfile.elastic

FROM --platform=${BUILDPLATFORM} eclipse-temurin:21-jdk AS builder
ARG _JAVA_OPTIONS
WORKDIR /usr/src/app/

COPY ./src/ad/gradlew* ./src/ad/settings.gradle* ./src/ad/build.gradle ./
COPY ./src/ad/gradle ./gradle

RUN chmod +x ./gradlew
RUN ./gradlew
RUN ./gradlew downloadRepos

COPY ./src/ad/ ./
COPY ./pb/ ./proto
RUN chmod +x ./gradlew
RUN ./gradlew installDist -PprotoSourceDir=./proto

# -----------------------------------------------------------------------------

# fetch latest published snapshot of the Elastic OpenTelemetry Java agent, using xq to parse XML
FROM debian:stable-slim AS intermediate
RUN <<-EOF
    apt-get update && apt-get install -y curl xq
    artifact='elastic-otel-javaagent'
    base_url="https://central.sonatype.com/repository/maven-snapshots/co/elastic/otel/${artifact}"
    snapshot_version="$(curl -s "${base_url}/maven-metadata.xml" | xq -e metadata/versioning/latest)"
    snapshot_timestamp="$(curl -s "${base_url}/${snapshot_version}/maven-metadata.xml" | xq -e metadata/versioning/snapshot/timestamp)"
    snapshot_buildnumber="$(curl -s "${base_url}/${snapshot_version}/maven-metadata.xml" | xq -e metadata/versioning/snapshot/buildNumber)"
    curl \
        -o /opentelemetry-javaagent.jar \
        "${base_url}/${snapshot_version}/${artifact}-${snapshot_version%-SNAPSHOT}-${snapshot_timestamp}-${snapshot_buildnumber}.jar"
EOF

# -----------------------------------------------------------------------------

FROM eclipse-temurin:21-jre

# ARG version=0.4.0
ARG _JAVA_OPTIONS

WORKDIR /usr/src/app/

COPY --from=builder /usr/src/app/ ./

COPY --from=intermediate /opentelemetry-javaagent.jar /usr/src/app/opentelemetry-javaagent.jar

ENV JAVA_TOOL_OPTIONS="-javaagent:/usr/src/app/opentelemetry-javaagent.jar -Xmx200m"
ENV OTEL_INFERRED_SPANS_ENABLED=true
ENV ELASTIC_OTEL_SPAN_STACK_TRACE_MIN_DURATION=2

EXPOSE ${AD_PORT}
ENTRYPOINT [ "./build/install/opentelemetry-demo-ad/bin/Ad" ]