ci: build and push Docker image based on Chainguard base image

.github/workflows/snapshot.yml

@@ -75,7 +75,38 @@ jobs:
         with:
           subject-path: "${{ github.workspace }}/**/target/*.jar"
 
-      - if: ${{ failure() }}
+  build-docker-images:
+    name: "Build docker images"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: elastic/apm-pipeline-library/.github/actions/docker-login@current
+        with:
+          registry: docker.elastic.co
+          secret: secret/apm-team/ci/docker-registry/prod
+          url: ${{ secrets.VAULT_ADDR }}
+          roleId: ${{ secrets.VAULT_ROLE_ID }}
+          secretId: ${{ secrets.VAULT_SECRET_ID }}
+      - name: prepare context for testing docker build
+        run: |
+          mkdir -p elastic-apm-agent/target
+          curl -L -s -o elastic-apm-agent/target/elastic-apm-agent-1.49.0.jar \
+            "https://oss.sonatype.org/service/local/artifact/maven/redirect?r=releases&g=co.elastic.apm&a=elastic-apm-agent&v=1.49.0"
+      - name: "Build docker image"
+        run: ./scripts/docker-release/build_docker.sh "test"
+
+  notify:
+    needs:
+      - build-docker-images
+      - deploy
+      - validate
+    runs-on: ubuntu-latest
+    steps:
+      - id: check
+        uses: elastic/apm-pipeline-library/.github/actions/check-dependent-jobs@current
+        with:
+          needs: ${{ toJSON(needs) }}
+      - if: ${{ failure() && ! inputs.dry_run }}
         uses: elastic/apm-pipeline-library/.github/actions/slack-message@current
         with:
           url: ${{ secrets.VAULT_ADDR }}

CONTRIBUTING.md

@@ -330,8 +330,14 @@ docker.elastic.co and are located in the `observability` namespace.
 
 For example, to download the v1.12.0 of the agent, use the following:
 
+```bash
+docker pull docker.elastic.co/observability/apm-agent-java:1.12.0
 ```
-docker pull  docker.elastic.co/observability/apm-agent-java:1.12.0
+
+In addition, you can use the `wolfi` version by adding the suffix `-wolfi`
+
+```bash
+docker pull docker.elastic.co/observability/apm-agent-java:1.12.0-wolfi
 ```
 
 #### Creating images for a Release

Dockerfile.wolfi

@@ -0,0 +1,7 @@
+FROM docker.elastic.co/wolfi/chainguard-base@sha256:9f940409f96296ef56140bcc4665c204dd499af4c32c96cc00e792558097c3f1
+RUN mkdir /usr/agent
+ARG JAR_FILE
+ARG HANDLER_FILE
+COPY ${JAR_FILE} /usr/agent/elastic-apm-agent.jar
+COPY ${HANDLER_FILE} /usr/agent/elastic-apm-handler
+RUN chmod +x /usr/agent/elastic-apm-handler

scripts/docker-release/build_docker.sh

@@ -18,11 +18,13 @@ readonly SCRIPT_PATH="$( cd "$(dirname "$0")" ; pwd -P )"
 readonly PROJECT_ROOT=$SCRIPT_PATH/../../
 readonly NAMESPACE="observability"
 
-if [ "$(ls -A  ${PROJECT_ROOT}elastic-apm-agent/target/*.jar)" ]
+FILE=$(ls -A ${PROJECT_ROOT}elastic-apm-agent/target/*.jar | grep -E "elastic-apm-agent-[0-9]+.[0-9]+.[0-9]+(-SNAPSHOT)?.jar" )
+
+if [ -n "${FILE}" ]
 then
   # We have build files to use
   echo "INFO: Found local build artifact. Using locally built for Docker build"
-  find -E ${PROJECT_ROOT}elastic-apm-agent/target -regex '.*/elastic-apm-agent-[0-9]+.[0-9]+.[0-9]+(-SNAPSHOT)?.jar' -exec cp {} ${PROJECT_ROOT}apm-agent-java.jar \; || echo "INFO: No locally built image found"
+  cp "${FILE}" "${PROJECT_ROOT}apm-agent-java.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"
@@ -37,19 +39,27 @@ then
     exit 1
 fi
 
-echo "INFO: Starting Docker build for version $RELEASE_VERSION"
+ls -l apm-agent-java.jar
 
-docker build -t docker.elastic.co/$NAMESPACE/apm-agent-java:$RELEASE_VERSION \
-  --platform linux/amd64 \
-  --build-arg JAR_FILE=apm-agent-java.jar \
-  --build-arg HANDLER_FILE=apm-agent-lambda-layer/src/main/assembly/elastic-apm-handler .
+echo "INFO: Starting Docker build for version $RELEASE_VERSION"
+for DOCKERFILE in "Dockerfile" "Dockerfile.wolfi" ; do
+  DOCKER_TAG=$RELEASE_VERSION
+  if [[ $DOCKERFILE =~ "wolfi" ]]; then
+    DOCKER_TAG="${RELEASE_VERSION}-wolfi"
+  fi
+  docker build -t docker.elastic.co/$NAMESPACE/apm-agent-java:$DOCKER_TAG \
+    --platform linux/amd64 \
+    --build-arg JAR_FILE=apm-agent-java.jar \
+    --build-arg HANDLER_FILE=apm-agent-lambda-layer/src/main/assembly/elastic-apm-handler \
+    --file $DOCKERFILE .
 
-if [ $? -eq 0 ]
-then
-  echo "INFO: Docker image built successfully"
-else
-  echo "ERROR: Problem building Docker image!"
-fi
+  if [ $? -eq 0 ]
+  then
+    echo "INFO: Docker image built successfully"
+  else
+    echo "ERROR: Problem building Docker image!"
+  fi
+done
 
 function finish {
 

scripts/docker-release/push_docker.sh

@@ -32,6 +32,7 @@ readonly DOCKER_PUSH_IMAGE_LATEST="$DOCKER_REGISTRY_URL/$DOCKER_IMAGE_NAME:lates
 echo "INFO: Pushing image $DOCKER_PUSH_IMAGE to $DOCKER_REGISTRY_URL"
 
 docker push $DOCKER_PUSH_IMAGE || { echo "You may need to run 'docker login' first and then re-run this script"; exit 1; }
+docker push "${DOCKER_PUSH_IMAGE}-wolfi" || { 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)
 
@@ -40,4 +41,6 @@ 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 $DOCKER_PUSH_IMAGE_LATEST || { echo "You may need to run 'docker login' first and then re-run this script"; exit 1; }
+  docker tag "${DOCKER_PUSH_IMAGE}-wolfi" "${DOCKER_PUSH_IMAGE_LATEST}-wolfi"
+  docker push "${DOCKER_PUSH_IMAGE_LATEST}-wolfi" || { echo "You may need to run 'docker login' first and then re-run this script"; exit 1; }
 fi