diff --git a/.github/workflows/build-debug.yaml b/.github/workflows/build-debug.yaml
new file mode 100644
index 00000000..596b2f65
--- /dev/null
+++ b/.github/workflows/build-debug.yaml
@@ -0,0 +1,157 @@
+on:
+  workflow_run:
+    workflows:
+      - "Build and Test (latest)"
+    types:
+      - completed
+
+name: Build and Test (debug)
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    name: build-${{ matrix.config.tag_prefix}}${{ matrix.config.product}}
+
+    # beware - several copies of matrix below
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {product: 'r-session-debug', tag_prefix: 'bionic-', dir: 'r-session-debug/bionic', prefix: RSP, version: 1.4.1717-3}
+          - {product: 'r-session-debug', tag_prefix: 'centos7-', dir: 'r-session-debug/centos7', prefix: RSP, version: 1.4.1717-3}
+
+    steps:
+      - name: Check Out Repo
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Build
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          context: ./${{ matrix.config.dir }}
+          file: ./${{ matrix.config.dir }}/Dockerfile
+          builder: ${{ steps.buildx.outputs.name }}
+          tags: |
+            rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}latest
+            rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}${{ matrix.config.version }}
+            ghcr.io/rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}latest
+            ghcr.io/rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}${{ matrix.config.version }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache
+          outputs: type=docker,dest=/tmp/${{ matrix.config.tag_prefix }}${{ matrix.config.product }}-image.tar
+          push: false
+          build-args: |
+            RSP_VERSION=${{ matrix.config.version }}
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ matrix.config.tag_prefix }}${{ matrix.config.product }}-image
+          path: /tmp/${{ matrix.config.tag_prefix }}${{ matrix.config.product }}-image.tar
+
+      - name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}
+
+  test:
+    runs-on: ubuntu-latest
+    name: test-${{ matrix.config.tag_prefix }}${{ matrix.config.product}}
+    needs: build
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {product: 'r-session-debug', tag_prefix: 'bionic-', dir: 'r-session-debug/bionic', prefix: RSP, version: 1.4.1717-3}
+          - {product: 'r-session-debug', tag_prefix: 'centos7-', dir: 'r-session-debug/centos7', prefix: RSP, version: 1.4.1717-3}
+
+    steps:
+      - name: Check Out Repo
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Download artifact
+        uses: actions/download-artifact@v2
+        with:
+          name: ${{ matrix.config.tag_prefix }}${{ matrix.config.product}}-image
+          path: /tmp
+
+      - name: Load image
+        run: |
+          docker load --input /tmp/${{ matrix.config.tag_prefix }}${{ matrix.config.product }}-image.tar
+          docker image ls -a
+
+      - name: Test image
+        env:
+          IMAGE_NAME: rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}${{ matrix.config.version }}
+          # because we cannot dynamically set env var names... set them all...
+          RSP_VERSION: ${{ matrix.config.version }}
+          RSC_VERSION: ${{ matrix.config.version }}
+          RSPM_VERSION: ${{ matrix.config.version }}
+        run: |
+          docker-compose -f ./${{ matrix.config.dir }}/docker-compose.test.yml run sut
+
+  push:
+    runs-on: ubuntu-latest
+    needs: test
+    if: ${{ github.ref == 'refs/heads/main' }}
+    name: push-${{ matrix.config.tag_prefix }}${{ matrix.config.product}}
+    environment: build-and-push
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {product: 'r-session-debug', tag_prefix: 'bionic-', dir: 'r-session-debug/bionic', prefix: RSP, version: 1.4.1717-3}
+          - {product: 'r-session-debug', tag_prefix: 'centos7-', dir: 'r-session-debug/centos7', prefix: RSP, version: 1.4.1717-3}
+
+    steps:
+      - name: Check Out Repo
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Download artifact
+        uses: actions/download-artifact@v2
+        with:
+          name: ${{ matrix.config.tag_prefix }}${{ matrix.config.product}}-image
+          path: /tmp
+
+      - name: Load image
+        run: |
+          docker load --input /tmp/${{ matrix.config.tag_prefix }}${{ matrix.config.product }}-image.tar
+          docker image ls -a
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+      - name: Login to ghcr.io
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.BUILD_PAT }}
+
+      - name: Push image(s) to Docker Hub
+        run: |
+          docker push rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}${{ matrix.config.version }}
+          docker push rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}latest
+          docker push ghcr.io/rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}${{ matrix.config.version }}
+          docker push ghcr.io/rstudio/${{ matrix.config.product }}:${{ matrix.config.tag_prefix }}latest
diff --git a/r-session-debug/bionic/Dockerfile b/r-session-debug/bionic/Dockerfile
new file mode 100644
index 00000000..d949403c
--- /dev/null
+++ b/r-session-debug/bionic/Dockerfile
@@ -0,0 +1,15 @@
+ARG RSP_VERSION
+FROM rstudio/r-session-complete:bionic-${RSP_VERSION}
+
+RUN apt-get update -qq \
+    && apt-get install -y \
+        dnsutils \
+        tcpdump \
+        netcat \
+        net-tools \
+        psutils \
+        vim \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY startup.sh /usr/local/bin/startup.sh
diff --git a/r-session-debug/bionic/startup.sh b/r-session-debug/bionic/startup.sh
new file mode 100755
index 00000000..4246d569
--- /dev/null
+++ b/r-session-debug/bionic/startup.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+TCPDUMP_OUTPUT=${TCPDUMP_OUTPUT:-/tmp/tcpdump.pcap}
+TCPDUMP_MAX_PACKETS=${TCPDUMP_MAX_PACKETS:-10000}
+
+tcpdump -i any -w ${TCPDUMP_OUTPUT} -c ${TCPDUMP_MAX_PACKETS} &
+
+# Launch the session based on RSTUDIO_TYPE
+if [ -z "$RSTUDIO_TYPE" -o "$RSTUDIO_TYPE" == "session" ]; then
+  echo "Starting RStudio session..."
+  exec "/usr/lib/rstudio-server/bin/rserver-launcher" "$@"
+elif [ "$RSTUDIO_TYPE" == "adhoc" ]; then
+  echo "Starting RStudio adhoc job..."
+  exec "/bin/bash" "$@"
+else
+  echo "ERROR: Unknown RSTUDIO_TYPE: ${RSTUDIO_TYPE}"
+  exit 1
+fi