build(image): add Dockerfile for agent carrier container image

.containerignore

@@ -0,0 +1,2 @@
+*
+!target/*.jar

.github/dependabot.yml

@@ -9,3 +9,12 @@ updates:
       - "chore"
       - "safe-to-test"
     open-pull-requests-limit: 20
+
+  - package-ecosystem: "docker"
+    directory: "/src/main/container"
+    schedule:
+      interval: "weekly"
+    labels:
+      - "dependencies"
+      - "chore"
+      - "safe-to-test"

.github/workflows/container-image.yml

@@ -16,9 +16,9 @@ on:
 env:
   OPENSUSE_UNOFFICIAL_LIBCONTAINERS_KEY_URL: "https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/unstable/xUbuntu_22.04/Release.key"
   OPENSUSE_UNOFFICIAL_LIBCONTAINERS_SOURCE_URL: "https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/unstable/xUbuntu_22.04"
-  CI_USER: redhat-java-monitoring+github_ci
-  CI_REGISTRY: quay.io/redhat-java-monitoring
-  CI_IMG: quay.io/redhat-java-monitoring/quarkus-cryostat-agent
+  CI_USER: cryostat+bot
+  CI_REGISTRY: quay.io/cryostat
+  CI_IMG: quay.io/cryostat/cryostat-agent-init
 
 jobs:
   build-agent:
@@ -36,70 +36,50 @@ jobs:
         echo "agent-version=$(mvn -q -DforceStdout help:evaluate -Dexpression=project.version)" >> $GITHUB_OUTPUT
     - uses: actions/setup-java@v4
       with:
-        java-version: '17'
+        java-version: '11'
         distribution: 'temurin'
     - uses: actions/cache@v4
       with:
         path: ~/.m2
         key: ${{ runner.os }}-build-${{ hashFiles('**/pom.xml') }}
     - run: mvn -B -U clean install
 
-  build-quarkus-test-app:
+  build-container:
     needs: [build-agent]
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        java: ['17']
-    outputs:
-      quay-image: ${{ steps.quarkus-test-image.outputs.image }}
     env:
       agent-version: ${{ needs.build-agent.outputs.image-version }}
-    name: Build Java ${{ matrix.java }}
+    name: Build container image
     steps:
     - uses: actions/checkout@v4
       with:
         submodules: true
         fetch-depth: 0
     - name: Get date tag
       run: echo "DATE_TAG=$(date -uI)" >> "$GITHUB_ENV"
-    - uses: actions/cache@v4
-      with:
-        path: ~/.m2
-        key: ${{ runner.os }}-build-${{ hashFiles('**/pom.xml') }}
-        restore-keys: |
-          ${{ runner.os }}-build-
-          ${{ runner.os }}-
     - uses: actions/setup-java@v4
       with:
-        java-version: ${{ matrix.java }}
+        java-version: '11'
         distribution: 'temurin'
-        cache: 'maven'
-    - uses: actions/checkout@v4
+    - uses: actions/cache@v4
       with:
-        repository: ${{ github.repository_owner }}/test-applications
-        ref: main
-        submodules: true
-        fetch-depth: 0
-    - name: Build application
-      working-directory: quarkus-agent
-      run: ./mvnw -B -U -Dio.cryostat.agent.version=${{ env.agent-version }} clean verify
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        path: ~/.m2
+        key: ${{ runner.os }}-build-${{ hashFiles('**/pom.xml') }}
+    - run: mvn -B -U clean install
     - name: Build container images and manifest
       id: buildah-build
       uses: redhat-actions/buildah-build@v2
       with:
         image: ${{ env.CI_IMG }}
         archs: amd64, arm64
         tags: ${{ env.agent-version }} ${{env.DATE_TAG}} latest
-        context: quarkus-agent
         containerfiles: |
-          ./quarkus-agent/src/main/docker/Dockerfile.jvm
+          src/main/container/Dockerfile
     - name: Push to quay.io
       id: push-to-quay
       uses: redhat-actions/push-to-registry@v2
       with:
-        image: quarkus-cryostat-agent
+        image: cryostat-agent-init
         tags: ${{ steps.buildah-build.outputs.tags }}
         registry: ${{ env.CI_REGISTRY }}
         username: ${{ env.CI_USER }}

src/main/container/Dockerfile

@@ -0,0 +1,5 @@
+ARG BASEIMAGE=registry.access.redhat.com/ubi8-micro:8.10
+FROM ${BASEIMAGE}
+ARG OUTDIR=/cryostat/agent
+COPY target/cryostat-agent-*-shaded.jar ${OUTDIR}/
+RUN ln -s ${OUTDIR}/cryostat-agent-*-shaded.jar ${OUTDIR}/cryostat-agent-shaded.jar