add docker file

docker/Dockerfile

@@ -0,0 +1,6 @@
+FROM docker.elastic.co/wolfi/chainguard-base@sha256:9f940409f96296ef56140bcc4665c204dd499af4c32c96cc00e792558097c3f1
+ARG JAR_FILE
+ARG EXTENSION_JAR_FILE
+COPY ${JAR_FILE} /javaagent.jar
+COPY ${EXTENSION_JAR_FILE} /extensions/elastic-otel-agentextension.jar 
+RUN chmod go+r /javaagent.jar /extensions

docker/build_docker.sh

@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+
+# See full documentation in the "Creating and publishing Docker images" section
+# of CONTRIBUTING.md
+
+set -euxo pipefail
+
+if ! command -v docker
+then
+  echo "ERROR: Building Docker image requires Docker binary to be installed" && exit 1
+elif ! docker version
+then
+  echo "ERROR: Building Docker image requires Docker daemon to be running" && exit 1
+fi
+readonly RELEASE_VERSION=${1}
+
+readonly SCRIPT_PATH="$( cd "$(dirname "$0")" ; pwd -P )"
+readonly PROJECT_ROOT=$SCRIPT_PATH/../
+readonly NAMESPACE="observability"
+
+FILE=$(ls -A ${PROJECT_ROOT}agent/build/libs/*.jar | grep -E "elastic-otel-javaagent-[0-9]+.[0-9]+.[0-9]+(-SNAPSHOT)?.jar" )
+EXTENSION_FILE=$(ls -A ${PROJECT_ROOT}agentextension/build/libs/*.jar | grep -E "elastic-otel-agentextension-[0-9]+.[0-9]+.[0-9]+(-SNAPSHOT)?.jar" )
+
+if [ -n "${FILE}" ]
+then
+  # We have build files to use
+  echo "INFO: Found local build artifact agent jar. Using locally built for Docker build"
+  cp "${FILE}" "${PROJECT_ROOT}elastic-otel-javaagent.jar" || echo "INFO: No locally built image found"
+elif [ ! -z ${SONATYPE_FALLBACK+x} ]
+then
+  echo "INFO: No local build artifact and SONATYPE_FALLBACK. Falling back to downloading artifact from Sonatype Nexus repository for version $RELEASE_VERSION"
+  if ! command -v curl
+  then
+      echo "ERROR: Pulling images from Sonatype Nexus repo requires cURL to be installed" && exit 1
+  fi
+  curl -L -s -o elastic-otel-javaagent.jar \
+    "https://oss.sonatype.org/service/local/artifact/maven/redirect?r=releases&g=co.elastic.otel&a=elastic-otel-javaagent&v=$RELEASE_VERSION"
+  else
+    echo "ERROR: No suitable build artifact was found. Re-running this script with the SONATYPE_FALLBACK variable set to true will try to use the Sonatype artifact for the latest tag"
+    exit 1
+fi
+
+if [ -n "${EXTENSION_FILE}" ]
+then
+  # We have build files to use
+  echo "INFO: Found local build artifact extension jar. Using locally built for Docker build"
+  cp "${EXTENSION_FILE}" "${PROJECT_ROOT}elastic-otel-agentextension.jar" || echo "INFO: No locally built image found"
+elif [ ! -z ${SONATYPE_FALLBACK+x} ]
+then
+  echo "INFO: No local build artifact and SONATYPE_FALLBACK. Falling back to downloading artifact from Sonatype Nexus repository for version $RELEASE_VERSION"
+  if ! command -v curl
+  then
+      echo "ERROR: Pulling images from Sonatype Nexus repo requires cURL to be installed" && exit 1
+  fi
+  curl -L -s -o elastic-otel-agentextension.jar \
+    "https://oss.sonatype.org/service/local/artifact/maven/redirect?r=releases&g=co.elastic.otel&a=elastic-otel-agentextension&v=$RELEASE_VERSION"
+  else
+    echo "ERROR: No suitable build artifact was found. Re-running this script with the SONATYPE_FALLBACK variable set to true will try to use the Sonatype artifact for the latest tag"
+    exit 1
+fi
+
+ls -l elastic-otel-javaagent.jar elastic-otel-agentextension.jar
+
+echo "INFO: Starting Docker build for version $RELEASE_VERSION"
+for DOCKERFILE in "${PROJECT_ROOT}docker/Dockerfile" ; do
+  DOCKER_TAG=$RELEASE_VERSION
+  docker build -t docker.elastic.co/$NAMESPACE/elastic-otel-javaagent:$DOCKER_TAG \
+    --platform linux/amd64 \
+    --build-arg JAR_FILE=elastic-otel-javaagent.jar \
+    --build-arg EXTENSION_JAR_FILE=elastic-otel-agentextension.jar \
+    --file $DOCKERFILE .
+
+  if [ $? -eq 0 ]
+  then
+    echo "INFO: Docker image built successfully"
+  else
+    echo "ERROR: Problem building Docker image!"
+  fi
+done
+
+function finish {
+
+  if [ -f elastic-otel-javaagent.jar ]
+  then
+    echo "INFO: Cleaning up downloaded artifact"
+    rm elastic-otel-javaagent.jar elastic-otel-agentextension.jar
+  fi
+}
+
+trap finish EXIT

docker/push_docker.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+set -euxo pipefail
+
+# This script is present on workers but may not be present in a development
+# environment.
+
+if [ ${WORKSPACE+x} ]  # We are on a CI worker
+then
+  source /usr/local/bin/bash_standard_lib.sh
+fi
+
+readonly RETRIES=3
+
+# This script is intended to work in conjunction with the build_docker
+# script. It assumes that build_docker.sh has been run at least once, thereby
+# creating a Docker image to push. If this script does not detect an image
+# to be uploaded, it will fail.
+
+# Grab the tag we are working with
+
+readonly RELEASE_VERSION=${1}
+readonly DOCKER_REGISTRY_URL="docker.elastic.co"
+readonly DOCKER_IMAGE_NAME="observability/elastic-otel-javaagent"
+readonly DOCKER_PUSH_IMAGE="$DOCKER_REGISTRY_URL/$DOCKER_IMAGE_NAME:$RELEASE_VERSION"
+readonly DOCKER_PUSH_IMAGE_LATEST="$DOCKER_REGISTRY_URL/$DOCKER_IMAGE_NAME:latest"
+
+# Proceed with pushing to the registry
+echo "INFO: Pushing image $DOCKER_PUSH_IMAGE to $DOCKER_REGISTRY_URL"
+
+docker push $DOCKER_PUSH_IMAGE || { echo "You may need to run 'docker login' first and then re-run this script"; exit 1; }
+
+readonly LATEST_TAG=$(git tag --list --sort=version:refname "v*" | grep -v RC | sed s/^v// | tail -n 1)
+
+if [ "$RELEASE_VERSION" = "$LATEST_TAG" ]
+then
+  echo "INFO: Current version ($RELEASE_VERSION) is the latest version. Tagging and pushing $DOCKER_PUSH_IMAGE_LATEST ..."
+  docker tag $DOCKER_PUSH_IMAGE $DOCKER_PUSH_IMAGE_LATEST
+  docker push $DOCKER_PUSH_IMAGE_LATEST || { echo "You may need to run 'docker login' first and then re-run this script"; exit 1; }
+fi