internal: add build+push CI job

Signed-off-by: Mattia Meleleo <mattia.meleleo@coralogix.com>

Author: mmat11

.github/actions/integration-test-image-build/action.yml

@@ -0,0 +1,69 @@
+name: CX build and push
+
+on:
+  push:
+    branches: [ 'main', 'internal/build-push-job' ]
+  pull_request:
+    branches: [ 'internal/build-push-job' ]
+
+env:
+  AWS_REGION: eu-west-1
+  AWS_ACCOUNT_ID: 897729105761 # tacotaco-research
+  AWS_ROLE_TO_ASSUME: arn:aws:iam::897729105761:role/AnemiaAgentRole
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    if: github.repository == 'coralogix/opentelemetry-ebpf-instrumentation'
+    permissions:
+      id-token: write
+      packages: write
+      contents: read
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ env.AWS_ROLE_TO_ASSUME }}
+          aws-region: ${{ env.AWS_REGION }}
+
+      - name: Login to Amazon ECR
+        id: login-ecr
+        run: |
+          aws ecr get-login-password --region ${{ env.AWS_REGION }} | docker login --username AWS --password-stdin ${{ env.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_REGION }}.amazonaws.com
+
+      - name: Create ECR Repositories
+        run: |
+          aws ecr create-repository --repository-name "obi-internal" --region ${{ env.AWS_REGION }} || echo "Repository obi-internal already exists."
+
+      - name: Set up buildx
+        uses: docker/setup-buildx-action@v3
+        with:
+          driver: docker-container
+
+      - name: Cache images
+        uses: actions/cache@v3
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Set Git Commit Hash
+        run: echo "COMMIT_HASH=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          platforms: linux/amd64,linux/arm64
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: |
+            ${{ env.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_REGION }}.amazonaws.com/obi-internal:${{ env.COMMIT_HASH }}
+            ${{ env.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_REGION }}.amazonaws.com/obi-internal:latest
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache,new=true