Test building a custom devcontainer.

.github/workflows/build-devbox.yaml

@@ -0,0 +1,44 @@
+name: build-devbox
+
+on:
+  push:
+    tags:
+      - "devcontainer-*"
+  workflow_dispatch: {}
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: "${{ github.repository }}-devcontainer"
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Extract version and branch metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=sha            
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile.devcontainer
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile.devcontainer

@@ -0,0 +1,16 @@
+FROM docker.io/eprosima/vulcanexus:humble-desktop
+
+# Setup packages needed for `make devbox-install`
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install git ansible python3-pip vim sudo 
+
+# Install the latest devbox playbook from git
+COPY . /seahawk
+RUN make -C /seahawk devbox-install
+
+# For vulcanexus container... make a user. 
+RUN useradd -Um -d /home/student -s /usr/bin/bash --uid 1000 -G adm,sudo student \
+    && echo 'student ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/student_nopasswd \
+    && echo '. /opt/vulcanexus/humble/setup.bash' >> /home/student/.bashrc 
+
+USER student 

setup/roles/ros/tasks/main.yaml

@@ -29,14 +29,19 @@
 ## Perform the instructions here: 
 # https://docs.ros.org/en/humble/Installation/Alternatives/Ubuntu-Development-Setup.html
 
+- name: Update all packages to their latest version
+  ansible.builtin.apt:
+    name: "*"
+    state: latest
+    update_cache: yes
+
 - name: Install helper packages
   become: true
   ansible.builtin.apt:
     name:
       - software-properties-common
       - curl 
     state: latest
-    cache_valid_time: 86400 # consider cache up-to-date if its < 1 day old
 
 - name: Check for ROS2 repos in apt sources 
   command: /bin/bash -c "grep -q packages.ros.org /etc/apt/sources.list /etc/apt/sources.list.d/*"